The cautions in the operation of vibrating screen

In the actual production, in order to prolong the life of the vibrating screen and improve the production efficiency of the equipment, we should pay attention to the following items in operation vibrating screen:
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1. Ensure the minimum clearance between all moving parts and fixtures.

2, in front of the boot, the operator to deal with on both sides of the vibrating screen and check the oil level, oil level is too high will cause the vibrator temperature rise or operation is difficult, the oil level is too low can lead to premature bearing damage.

3. Check the fastening degree of all bolts, and re-tighten once after 8 hours of initial work. Check the tension of V belt, avoid slipping in starting or working, and make sure the V belt wheel is positive.vacuum furnaces

4. The sieve should be started with no load, and after the sieve has run smoothly, it can start feeding the material. Before stopping, the material should be stopped and the material on the screen should be stopped after cleaning.

5, the feeding chute should be as close to the feeding end, and as far as possible along the sieve full width uniform feeding, its direction and run in the same direction, screen material feeding point to sieve the biggest gap is not more than 500 mm, and the best sieving effect is obtained.

6. When the exciter is rotating in the direction of the material flow, it can increase the speed of materials and increase the production capacity, but reduce the screening efficiency. When the vibration of the exciter is turned in the direction of the flow direction, the speed of the material can be reduced and the production capacity can be reduced.500kg Vacuum Oil Quenching Gas Cooling Furnace For Anne

Environment-friendly sand stone production line is popular in the market

China's mineral resources are abundant, but it still needs to improve and improve greatly from the current situation of mine development in China. For mining machinery industry is also a very good development opportunities, but also means that the competition and pressure, large scale of engineering construction, engineering for improving the efficiency and quality of technical requirements, has made the increasingly intense competition between mining machinery manufacturers. The related experts of mining industry in China agree that the competition of new mining machinery market will be reflected in energy conservation and environmental protection.vacuum furnaces

Refers to energy conservation and environmental protection industry to save energy resources, development of circular economy, protect the ecological environment to provide material basis and technical support of the industry, is the country to speed up the cultivation and support the development of one of the seven strategic emerging industries.vacuum pump,vacuum furnaces,vacuum coating machine

Energy conservation and environmental protection industry involves energy conservation and environmental protection technology equipment, products and services. The industrial chain is long, with a large correlation degree and strong employment ability, which is obvious to economic growth. , speed up the development of energy saving and environmental protection industry is to adjust the economic structure and the inherent requirement of transformation of the pattern of economic development, is to promote energy conservation and emissions reduction, development of green economy and circular economy, the construction of resource saving, environment friendly society actively respond to climate change, take the strategic choice of future competition commanding heights, for the bigger of the mining machinery industry has always been pollution in particular.
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Vertical compound crusher

The vertical composite crusher is a new generation of high efficiency and energy saving crushers designed and developed for the optimization of the main technical parameters of the product.vacuum pump,vacuum furnaces,vacuum coating machine

The product design structure combined with the advantages of hammer crusher and counterattack crusher, take long to short, to cater to all kinds of building materials, mining, chemical, metallurgy, cement, coal and other industries crushing medium hard broken friable materials of low water content.vacuum furnaces

It set system structure integrating the counterattack crusher and with the hammer crusher particularly suitable for building materials, mining, chemical, metallurgy, cement, coal and other industries crushing medium hardness friable materials of low water content. In the cement industry the device is a secondary fragmentation.
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New mobile crusher

  With the increasing of urban building area, building loading increasing is placed, become more headaches, the birth of new mobile crusher let us see the new hope is in trouble, all kinds of mobile crusher activities on the market, specifications. Today, I will give you some information about the advantages of the new mobile crusher.vacuum pump,vacuum furnaces,vacuum coating machine

New mobile crusher structure of new type, the function is all ready, the whole equipment to vibrating feeder, jaw crusher, counterattack crusher, vibrating screen, such as work perfect unifies in together, but the equipment through the ingenious combination, the new structure, covers an area of less than the crushing station on market.vacuum furnaces

So the choice of the working environment will too limitations, as some remote narrow field can also be very good for crushing processing, which can realize the function of relatively complete, including building material, highway, railway, water conservancy and other fields of crushing, screening and grading. The new mobile crusher is fast and stable operation.Diameter size in 1000mm large split case centrifugal 

How does the stone production line block dust pollution

Because of stone crusher is not fully closed, at work, being hit by extrusion, stone, stone clearance of air is extruded and high-speed outward movement, lead dust with escape, instantly raise large amounts of dust. The dusty air passes down through the chute (a few) or through the feeding mouth (most), causing a high concentration of dust around the feeding mouth. Being in this state for a long time will not only cause serious pollution to the environment, but also cause great harm to the human body. So how to control the dust pollution of the crusher, as a professional broken equipment manufacturer, which aspects should we improve?vacuum furnace

(1) close control will seal the dust source with a sealed cover to make the dust not spread widely.vacuum furnaces

(2) eliminate highly potential difference handling equipment hopper, shield, chute, etc for powder, high potential difference generated by the difference of the main causes of spillover is the dust float in the sky, try to reduce the gap, reduce the chute chute inclination, some secret chamber caused by negative pressure best closed, such ability for dust collection.

(3) the wet dust removal and exhaust dust removal according to the reasons of the dust, dust source can be set respectively control countermeasures: in the feeding mouth and tape transshipment point setting spray device, and to control the amount of water wet stone, can significantly reduce the crushing plant transfer point inside the dust pollution; When the reprint point, especially when the underground construction of the underground building is bad, the centrifugal fan should be used, the ventilation should be forced and the wind speed and air volume should be enhanced. When the dust is produced by the operation of the tape, the negative pressure control system of the cloth bag filter is adopted to control the dust source.
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Maintenance of sand production line

The most important thing for users of sand production line is the life span of the equipment, and the maintenance work of the equipment should be done in order to ensure the service life of the sand production line. So how do we maintain the sand production line?vacuum furnaces
First of all, we should to do a good job of lubrication line regularly, after when using the equipment for a period of time, must adopt suitable lubricant to make every parts of machinery lubrication tasks, in order to effectively reduce the friction between parts. The sand production line can always be in a good running state without any other problems.vacuum furnace
Second, users in the selection of equipment lubricating oil has to do, analyzing the specific issues in the winter, the user needs to choose low viscosity lubricating oil, while in the summer when need to choose the viscosity of the lubricants. Otherwise, it is difficult to achieve the optimal lubrication effect, thus causing unnecessary trouble to people's life.
Third, we must be ready before using sand making production line equipment comprehensive inspection work, in front of the boot, need to equipment operation condition and oil has a good understanding, in order to let the system of sand production line can play a very good performance.
Fourth, when the problem appeared in the process of sand production line is running, you must be cool, don't too nervous, want to stop the machine immediately to check, after solving the problem of good fault can restart, can't let equipment to work with.Vacuum Furnace Brazing Services

A strong analysis of the jaw crusher of yunnan gravel production

Yunnan gravel production strong jaw crusher, crusher customer is producing field we see jaw crusher equipment, crusher equipment, its characteristics into big, small, all kinds of ores the material can be broken, save energy and environment protection, technology said through setting the size of the discharge freely adjust, can also change the broken ratio, improve the work efficiency. vacuum furnaces

The jaw crusher is allowed to operate under high pressure and on the other hand components of its components.vacuum furnace

Jaw crusher broken mobile jaw, jaw and eccentric shaft use high manganese steel material, which makes jaw crusher has a good stability, the jaw crusher operation is very simple, special the discharging mouth of jaw crusher can perfectly into the various crushing process, and the operation simple and quick, jaw crusher design fully consider the installation problem, easy to transport and install.Pro uction machines mini in uction furnace

Granite-making machine

Granite, is the most common in the crust deep diagenesis, rich in quartz and feldspar in the coarse grain or grain of intrusive rocks, is currently in the stone production line is used as a relatively high quality stone material of artificial sand processing stone, China has a wide range of USES in multiple industries, mining using granite industry has become the most popular investment prospect.vacuum furnaces


There are three stages of granite crushing, the coarse breaking stage, the grinding stage and the sand making stage. In the rough-breaking stage, it is recommended that you use the jaw crusher and the European jaw crusher. vacuum furnace

In the fine phase, the typical use is the counter crusher, cone crusher; In the final stage of sand production, it is generally chosen for the user to choose the reversible sand making machine.small sap copper smelting furnace

Small metal crusher industry leader

The rise of metal crusher, for a time for the iron and steel smelting industry made an indelible contribution. Nearly four or five years all over the metal scraper venture blowing the climax. For those who have not set foot in the business of metal crusher, small metal crusher investment will undoubtedly be the best investment project.
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The reason is summarized as:
The rise of metal crusher, for a time for the iron and steel smelting industry made an indelible contribution. Nearly four or five years all over the metal scraper venture blowing the climax. For those who have not set foot in the business of metal crusher, small metal crusher investment will undoubtedly be the best investment project.
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The reason is summarized as:
1, small metal crusher models, relatively speaking, low prices, users do not have to worry too much about investment income does not return.
2, for the start of the business, you can try to invest in small metal crusher according to the same industry experience to expand sales.
3, small metal crusher in terms of investment, or area and personnel operations are the ideal start-up project.IGBT horizontal vacum in uction heating sintering furnace

The heating principle of induction furnace

   Electromagnetic furnace is the application of electromagnetic induction principle to food heating. Electromagnetism furnace face is heat-resistant ceramic plate, alternating current through the ceramic plate at the bottom of the coil magnetic field, magnetic field at the bottom of the magnetic field lines through the POTS, stainless steel pot, etc, produce eddy current, make the bottom of the pot hot quickly, achieve the goal of heating food.vacuum pump,vacuum furnaces,vacuum coating machine

  Its working process is as follows: ac voltage rectifier is converted to direct current (dc), and the high frequency power conversion device make it become a than audio high frequency alternating current, direct current (dc) to high frequency alternating current (ac) on flat hollow spiral induction heating coil, the resulting high frequency alternating magnetic field.vacuum furnace

 Its magnetic force lines penetrate the ceramic panels of the hearth and act on metal POTS. In the cooking pot, there is a powerful eddy produced by electromagnetic induction. The eddy current can overcome the internal resistance of the pan to complete the conversion of electric energy to thermal energy, and the resulting joule heat is the heat source of cooking.vacuum varying pressure nitri ing furnace

The mobile sand aggregate project promotes the development of specialized mines

 As the main building materials of construction, roads, Bridges, water conservancy and railway construction, sandstone aggregate has become a hot "soft gold". To meet the demand of sand and gravel aggregate market development, in order to build green for efficient, intelligent equipment + based systematic scheme, blockbuster building mobile crushing station as a new type of mobile host sandstone aggregate project.vacuum furnace

The mobile crushing plant as the main device of mobile sand aggregate project, providing customers with simple, high efficient and low cost project operating method, and can realize quick installation, on-site operation, effectively solve the problem of equipment transitions, etc, make the project operate more efficient, greatly enhance product added value.vacuum furnaces

 In addition, the crushing station according to the different crushing process requirement of "broken after the first screen", can form a "broken after the first screen" process, can be combined according to the actual demand for the coarse crushing, finely screening system, two pieces can be combined into coarse fine in the three sections of screening system, has the very high flexibility, to a large extent to meet the needs of different customers.Unite King om 50g Small Silver Melting Furnace From

The development course of the localization of crusher equipment in China

Nowadays, the equipment of crusher in China is emerging internationally, which can not be separated from decades of hard research and development. Mining machinery industry has always been a high technical difficulty of large equipment, wide market demand, with the rapid development of developing countries is increasingly, the future of our country mining machinery industry is faced with more market opportunities. At the same time, in the face of such a large market demand, domestic machinery and equipment manufacturers, more should keep up with The Times, innovation.vacuum furnaces

The mobile crushing station as the signature product of the machinery, for China's backward mining machinery equipment on the basis of the height of a heavy pen. As in the recent years, the construction of new rural reconstruction and urbanization and the development of urban rail transit, led by mobile crushing plant, construction waste processing machine, also welcome to an era of rapid development.vacuum furnace

From previous depends on foreign production technology, to break the foreign technology monopoly situation now, during the period of twists and turns and hard work, as said, that's our growth history, as it is, just had today standing machinery.
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The main factors affecting the production efficiency of crusher

Many users have no understanding of the performance of the crusher, so the crusher can not work with the maximum amount of work. To understand the reasons for the production of stone production lines, it is clear what factors are controllable and what factors are not controllable. In sand production, the invariant is the nature of the stone material, and the variable is our overall control of the stone production line. Then we analyze the production of stone production line by combining these controllable factors.Electri Resistance Furnace Electrical Bogie Hearth Furnace

In fact, every link of stone production line has an impact on production, and the cooperation between each link and the link also affects the total production of stone production line. For crushing equipment, if they adjust the discharging mouth of the crusher is bad, too little of the crusher discharge orifice blockage, will cause the finished product is not up to standard, these are will directly affect the production of stone production line. Also, the failure of the crusher due to improper operation or other reasons will affect the normal operation of the whole stone production line. For example, the feeding machine in the stone production line, if the feeding speed is not adjusted, the first step in the stone production line is a problem, and it is serious that it can cause a vicious cycle. Like some customers in the actual production of stone production line, in order to drive the production, increase the feeding speed, then crusher will not be able to stop working, the last gain is not worth the loss.Skull Melting Col ucible In uction Melting Furnace

These reasons which influence the production of stone production line is we can control, so in our actual production, must pay attention to the disadvantages, let the stone production line production hugely increased.Laboratory 175L Sintering Furnace Big Box Furnace

How important is the rational layout of the stone production line

The system of stone production line consists of three main parts, first, feeding system. Feeding system is one of the most basic system, the system is mainly for each section of the transport materials, equipment and screening machine, of course, this process is according to the crushing screening process structures are different, how many there will be some different details. The equipment of feeding system mainly has vibration feeding machine, and other feeding equipment, the normal stone material production line is the feeding system responsible for the supply of various stone materials.vacuum nitri ing furnace for tools in ustry

Second, broken systems. It is understood that the broken system is the heart of the stone production line, which can be seen, the importance of this system. The system equipment, the main work is to keep raw material crushing all kinds of ores, the end result of a broken particles required to achieve the finished product, at present, the main equipment of the system is more crusher, and mechanical properties of each crusher, can complete all kinds of stone crushing work together, to ensure normal operation of stone production line can be.Heat Treatment Vacuum Sintering Atmosphere Furnace with low

Thirdly, screening and delivery system. After the main equipment of the system is to put the broken ore better screening, we have learned, sand and stone need to be separated, and classification, application is to transport to the various sites. Sieving conveyor system is the main equipment of linear vibrating screen and other screening equipment, each kind of screening system has its own characteristics and advantages, in the process of work, all screening equipment is required to work together, so that can achieve efficient work, at the same time, the effect of screening reached a more ideal result.Mol enum heater iel furnace machine part

Advantages and USES of metal shredder

   Shredder is a kind of machine used for fine grinding, which is used to deal with raw materials or edges, making its size even smaller. A representative example is the use of plastic or rubber scraps to be used as a raw material to melt the granules, to re-make plastic bottles, tires or garbage cans, etc. Shredding machine is used in plastic recycling industry. It is often used in plastic pipe material, bale packing plastic film, large pile of plastic sheet and the crushing of nose material.Vacuum Tube Furnace Quartz Tube Furnace

The application of shredder includes:

  1.Break the defective product into smaller pieces for recycling.

  2.To reduce the bulk of raw materials in order to mix with other materials.

  3.Tear up organic matter to make biofuels.

  4.Tear up some textile materials for the reuse of fiber, such as carpet crushing.

  5.In fact, shredding machine used to shred all kinds of plastic, rubber, tire, fiber, paper, wood, iron drum, waste electrical appliances, waste cable, industrial wastes, living garbage and other solid or hollow materials.vacuum annealing furnace for tool steel

Features of shredder:

The characteristics of shredder and other crusher are low speed, low noise and low energy consumption.vacuum quenching furnace with vacuum system vacuum furnace parts

Shredding of plastics and PVC materials is the best choice

Shredder can be used to tear and recycle PVC materials of various thickness. PVC material is used in a very wide range of plastics, and his recycling is very promising.
Shred vendors would give everyone to share the current situation of PVC recycling market, PVC is one of the most widely used plastics in the world, are widely used in the construction industry, packaging materials, household products and automotive industry. Power Protection System Small Metal Furnace For Copper

Although there has been a lot of debate about whether to ban PVC in the past decade or so, the production of PVC is still growing. Now, the discussion of PVC impact on the environment problem more and more objective, especially due to the increasingly depletion of oil resources, PVC even more attractive, because compared with PE, PVC composite materials only half from oil, the other half from the rich ore. However, the problem of PVC recycling and its potential impact on the environment have not been solved. On many occasions, the limited use of PVC still exists.Cyclical vacuum in uction melting furnace for rare metal 


Therefore, the application development and recycling of PVC must be taken seriously. The current situation of PVC recycling, the possibility of recycling is generally, plastic can be recycled, PVC is no exception, and it is being recycled.
Shredding machine all PVC materials can be recycled, our manufacturer have a video you can consult online customer service demand, you can also to our factory for actual, our factory has all kinds of PVC material, the thickness of the commissioning for your site, we use the facts to convince you.High temperature custom benchtop muffle furnace

Plastic crusher has brought great benefits to customers

  Main material is polyethylene plastic bottles of waste, plastic is close to our life, we can see traces of plastic in any place, the use of the modern plastic is far beyond the metal and wood use, consumption and far beyond the other materials. Because of polyethylene under natural conditions are difficult to oxidation, and the combustion will produce a lot of gas that is harmful to the body and material, so the environmental pollution is very serious, the famous white pollution is caused by the plastic. vacuum furnaces

  Black tea and green tea, etc are very high quality made of polyethylene plastic, it has a very high recycling value, if discarded directly not only has a lot of pollution to the environment, the data is also a kind of very unnecessary waste. For black tea bottles, green tea bottles, and so on, we can take some measures to make these materials more usable.operate latest promotion annealing sintering furnace

Plastic shredding machine can be torn for a variety of materials processing, black tea, green tea can be by shredding machine processing, such as the bottled again the use of resources, the same a bottle of black tea, if direct discard worthless, if be used to recycle again, can get very good collection, and the environmental protection also play a very important role. It is the value of these reusable garbage that can be used again by shredding machine.High vacuum gas atmosphere sintering muffle Furnace

Increased Low-Pressure Vacuum Carburizing Lifespan

  The Low-Pressure Vacuum Carburizing square hot zone is also covered with a special high-performance carbon fiber composite (CFC), used in the form of either laminated CFC or as CFC with foil coating, that can withstand temperatures of up to 3,600 °F (2,000 °C). manufacturing PM sunrising Horizontal vacuum brazing furnace

  This additional covering of the hot zone is considered to be beneficial for high-pressure gas quenching as it protects the hot zone from the high-velocity gas stream. This helps extend the hot zone's service life, thus reducing maintenance costs and subsequent servicing.

  Past experience shows there is significant potential for optimizing, as well as producing, a more uniform quench.laboratory vacuum tube furnace with max temperature up to 

 The implementation of such features has produced a more uniform hardening of parts, particularly for gear components, with an advanced microstructure and reduced distortion. Additionally, using the Vacuum Carburizing process in tandem with high-pressure gas quenching can optimize the manufacturing process by decreasing both the processing time and the number of manufacturing steps needed to heat treat.Continuous low temperature electri aluminium brazing furnace

The advantages of vacuum furnace performance are significant

     The advantages of vacuum furnace performance are significant

The vacuum furnace, as the name implies, is in a vacuum in the furnace, so it avoids many other types of coal burners.
Eliminating the oxidation and decarburization of the surface of the workpiece during the heating process, the cleaning surface of the non-metamorphic layer can be obtained. That only when grinding mill side of cutting tools (such as twist drill grinding after make direct exposure to edge) of the decarburization layer of the grooved surface cutting performance greatly improved relations.
No pollution of the environment, no three waste disposal.
The measurement of furnace temperature and the accuracy of monitoring are obviously improved. Indicated value of thermocouple temperature and furnace temperature reached plus or minus 1.5 ° c. But in different parts of a large number of artifacts in the furnace temperature difference is bigger, if USES the rarefied gas forced circulation, can still be controlled within + / - 5 ° c temperature difference.
High degree of electromechanical integration. On the basis of improving temperature measurement and control accuracy, the workpiece movement, air pressure adjustment, power adjustment, etc., can be programmed in advance, and the hardening and tempering are done by step.
The energy consumption is significantly lower than the salt bath furnace. Modern advanced vacuum furnace heating chamber is made of high quality insulation material of insulation walls and barriers, electric energy can be highly focused on indoor heating, energy saving effect is remarkable.

The characteristics of the vacuum furnace temperature field

The characteristics of the vacuum furnace temperature field

The heating element of a vacuum furnace is generally round. The heat transfer in a vacuum is only radiation, no conduction and convection. There are three modes of conduction, convection and radiation in non-vacuum heating, and the convection and conduction are different from normal furnace (conventional pressure).
The pressure is less than 1 x 105Pa (absolute pressure, the approximate work pressure of the normal furnace). Working pressure close to the vacuum (pa) 2, the convection and conduction effect basic does not exist, workpiece temperature is slow, especially below 600 ℃ heating, heating more slowly, the temperature of the workpiece temperature thermocouple temperature control has certain hysteresis.
The vacuum furnace temperature uniformity measurement is different from ordinary furnace, when measuring the need to guarantee the normal work of the furnace under the condition of vacuum and pressure rise rate, can correct determination of furnace temperature. Because, unlike ordinary furnace, vacuum furnace heat transfer of actual temperature measurement process shows that the control thermocouple temperature at the beginning of the heat preservation and the effective heating area measuring thermocouple temperature difference is bigger. In vacuum condition, temperature deviation in the normal heat preservation time of the effective heating area can reach + / - 5 ℃, meet the needs of the process.

High temperature vacuum furnace

High temperature vacuum furnace

High temperature vacuum furnace refers to the vacuum furnace temperature above 1500 ℃, vacuum high temperature furnace is equipped with infrared thermometer, temperature up to 2500 ℃ and temperature control can be obtained. Vacuum furnace according to the temperature range is divided into low temperature furnace (below 650 ℃), medium temperature (650 ℃ -- 1500 ℃), high temperature furnace (above 1500 ℃).
High temperature vacuum furnace can be used for used for cemented carbide sintering, powder metallurgy and other industries, can also be used for research and development department of scientific research test, high temperature vacuum electric furnace structure affects the balance of furnace temperature, vacuum furnace for many years production experience, our company the reasonable structure of furnace body, temperature balance is good, the vacuum furnace heating correlation even, high temperature vacuum furnace, furnace temperature in good balance.

How to control the heating of molybdenum wire furnace

How to control the heating of molybdenum wire furnace

Temperature coefficient of resistance of tungsten and molybdenum materials is opposite bigger, low-temperature resistance is small, therefore made of tungsten and molybdenum materials do resistance furnace heating element in the process of cold heat, if do not use appropriate control method to produce excessive current and damage to equipment.
At present, the main component of the voltage and current control in the heating and insulation of the electric furnace is the thyristor, the fatal defect of silicon controlled is the overcurrent and the over-voltage difference.In tungsten molybdenum wire of electric furnace, the wire resistance rate at low temperatures is small, easy to produce the flow, so how to guarantee under the premise of the production process to avoid appear over current at low temperatures is of vital importance.According to many years' research and engineering practice of the author, the temperature coefficient of resistance of the larger tungsten molybdenum wire of electric heating can use manual piecewise constant pressure heat up, automatic segmentation pressure limiting temperature and pressure limiting current limit of the double closed loop heat three methods, but can not only meet the current and can meet the requirements of heating process.
Furnace in the first place at a certain temperature heating rate and the targets set by the first paragraph, because of the furnace and furnace heat absorption and heat diffusion, reaches the set temperature when the heating power and cooling rate balance, electric furnace in the process of thermal insulation, temperature in thermal process control system with proper power to maintain constant temperature control of electric furnace.Then, further increase the temperature of the heating voltage, the heating power of the electric furnace is raised, and the electric furnace enters the next phase of warming.

Vacuum furnace operation method

Vacuum furnace operation method

A, preparation,
First turn on the cold water machine, vacuum furnace may alarm because of the water pressure is too low.
Second, turn the power switch
Before electricity, be sure to carefully check the status of each switch:
1, the heating way should be put in "manual", counterclockwise to the end for power regulation can be;
2, pressure lowered a stop "toggle switch, if there is any check its in stop position, pressurized potentiometer have the knob to the minimum.
After the above checks are no errors. To open the main power switch. Then open the power switch.
Third, furnace into the sample
Normally the stove when not in use are under vacuum condition, so before use to check the stove is under vacuum, first using the inlet valve of furnace gas has been slowly to the atmospheric pressure, and then turn on the furnace cover with a jack and removed the lid and put in the sample that need to burn. If you don't need to pressure sintering, then be sure to remember to cover the inside and outside the two layers of insulation cover, otherwise, the temperature may rise will not come up. If want to undertake heating sintering, then must make the most out of insulation cover in the middle of the small cover off to start testing. Note: when put the sample must not touch the heating element, prevent short circuit occur furnace shell and the heating element.
Vacuum furnace features:
1 low processing temperature, vacuum furnace, the workpiece is not easy to deformation.
2, vacuum furnace can process carbon steel, cast iron, steel, low alloy steel, stainless steel and other materials.
3, vacuum furnace, can improve the strength, corrosion resistance and abrasion resistance.

There are several kinds of vacuum furnace heating way, what is commonly used?

There are several kinds of vacuum furnace heating way, what is commonly used?

Vacuum furnace is commonly used in design of high temperature thermal energy saving all metal stainless steel as a frame structure, because of the relative to the other metal heat preservation effect not only first-class stainless steel and heat insulation constant temperature is quite unique, and quick in work quickly, using insulation resistance to high temperature alloy furnace heating is very fast. So there are several kinds of vacuum furnace heating mode? Vacuum furnace heating mode according to different purposes of actually has a lot of kinds, but a way of heating "heat", is a commonly used vacuum furnace heating mode.
Vacuum furnace in the bottom of the chamber of a stove or furnace set very convenient temperature resistant plate equipment and artifacts in the heating process is not affected by temperature difference and deformation and even caused the explosion, when welding the bottom of the furnace and furnace body USES is seamless welding method, can effectively form a super vacuum mode, and when the enterprise in the production of vacuum furnace valve USES the German advanced compression techniques, reasonable to use the oven door gravity to close the valve, and using the lever principle to open the valve. On the switch link to ensure the safe and does not appear because of the heat bilges cold shrink, extrusion deformation caused by various unpredictable accidents, enterprise set up the reasonable protection valve spring buffer device.

Concrete analysis of the effect of heat treatment

Concrete analysis of the effect of heat treatment

Alleged metal heat treatment, it is with the aid of certain thermal effect (sometimes by mechanical action, chemistry or other principals) to the change of the human internal organization and structure, metal alloy to obtain the required performance of process operations. In all kinds of metal materials and products of the production process, heat treatment is one of the indispensable important segment.
Casting is usually needed to eliminate internal stress of low temperature annealing, or completely annealing or normalizing; Some still need after quenching tempering (aging). Heat treatment of steel in the whole production process, including heat treatment of steel ingot, pressure processing and finished products in the process of heat treatment. Heat treatment of steel ingot is mainly of annealing at different temperatures. Heat treatment of steel can be used in accordance with the process performance and performance requirements. Such as all kinds of steel should be normalized processing, often in order to obtain fine and uniform microstructure and good mechanical properties. High strength quenched and tempered steel shell}! High temperature quenching tempering treatment, often to ensure that meet the requirements of the comprehensive mechanical properties. Stainless steel plate and steel belt, most solid solution treatment to improve its corrosion resistance. Hot forging (rolling) steel according to the requirements of the user to determine the heat treatment process of the products. Cold drawing (rolling) steel billet heat treatment, heat treatment and finished goods between heat treated.
Non-ferrous metal and its alloy semi-finished products or products of the production with steel and steel parts production phase 'roughly, but in the non-ferrous metal processing technology in the process, heat treatment is an important part of the more. No congratulations on heat treatment. Plate and strip production would not be performed.

Vacuum furnace production technology

Vacuum furnace production technology

Under the premise of stable equipment, new technology of performance optimization of decarburization, through summarizing and analyzing the carbon and oxygen utilization, and the yields of aluminium deoxidizing and alloying, found some empirical formula, vacuum time is greatly reduced, production speed, improve the quality of the products.
Ultra-low carbon steel vacuum furnace production technology in the process, it is difficult to control has two aspects, first, how to carbon and a minimum of 15 minutes, the second, how to 15 minutes after the remnants of oxygen content in liquid steel decarburization aluminum one-time add in place, can make the aluminum deoxidation, and ensure the aluminum alloy.
In this way, it is able to accommodate between 25 and 30 minutes. Otherwise, the vacuum time greatly extended. In the process of production of ultra-low carbon steel, along with the expansion of smelting time resistance materials and contact between liquid steel has also led to the steel back of carbon, in addition, the ultra low carbon steel because of the quantity more than aluminum, produced a lot of Al2O3 inclusions, so aluminum connecting the sooner, the better for Al2O3 inclusions float process is more advantageous to hou road operation and improve the quality of our products.

Vacuum furnace operation process

Vacuum furnace operation process

Vacuum furnace to pay attention to matters a lot in the process of operation, the following introduce the basic operation process of vacuum furnace for everybody:
1, first check the power of the vacuum furnace, water.
2, it is forbidden to smoke in hearth, open flame.
3, familiar with vacuum furnace every action buttons, understand its action.
4, open the system power and heating power, began to preheat diffusion pump.
5, pay attention to the programming temperature control table.
6, open the oven door began to feed.
7 when ventilation to switch off the pressure reducing valve, vacuum furnace, before the new cylinder change tighten, to open the valve, the air, finally tighten the valve.
8 the runtime, vacuum furnace, to leave a man guards.
9, regularly check the vacuum furnace gas supply system, circulatory system.
10 runtime unless some special cases, vacuum furnace, otherwise don't modify the vacuum furnace to run the program parameters.
11, the normal operation of vacuum furnace, it is forbidden to switch "automatic" and "manual" button.
12 and servicing of the vacuum furnace, absolutely coat pocket coat pocket.
13, at the end of the vacuum furnace heating, remove cooling lights flashing alarm, into a state vacuum furnace cooling.

Vacuum furnace air pressure quenching

Vacuum furnace air pressure quenching

Vacuum heat treatment is a kind of the increasing popularity of heat treatment technology, widely used in aerospace, automotive and machine tool industry. This paper focuses on the development of the vacuum furnace pressure quenching system, the system guarantee to obtain good metallurgical performance in the process of hardening workpiece and has the least deformation.
For the heat treatment, in the process of vacuum hardening of many of the issues has become the primary problem of distortion of work piece. For manufacturers of vacuum furnace, its purpose is to provide can obtain satisfactory metallurgical properties while maintaining stable equipment size. The cause of the deformation of workpiece deformation may occur in any heat treatment process, the possible reasons is the rapid heating caused by the thermal gradient within the workpiece forming serious thermal stress and led to the workpiece's deformation.
It is necessary to estimate workpiece deformation, there are two reasons for this. First of all, the most by the vacuum heat treatment of workpiece in service with other parts in the assembly, excessive deformation may inhibit the interaction required. Second, then correct deformation process is expensive, and may have harmful effects on the metallurgical properties of workpiece. 3. More fluid concept Strictly speaking, a degree of deformation is impossible to avoid. But several methods available to minimize deformation, in order to obtain the minimum deformation, developed the first flow gas quenching system. The system and hydraulic parts of heating and quenching cycle has a very good control.

The primary principle of vacuum brazing furnace

The primary principle of vacuum brazing furnace

Vacuum brazing furnace is in a vacuum environment to maintenance of sintering furnace heated objects, the heating method is more, such as resistance heating, induction heating, microwave heating, etc. Vacuum induction furnace is the use of induction heating to maintenance of sintering furnace heated objects can be divided into the power frequency, medium frequency, high-frequency, such as type, can be attributable to a subclass of vacuum brazing furnace.
Vacuum induction furnace Vacuum induction furnace is in a vacuum or maintain atmosphere conditions, using the principle of intermediate frequency induction heating make carbide cutter head, and all kinds of metal powder limit sintered body implementation of complete sets of equipment, is for hard alloy, metal dysprosium, and planning in the industrial production of ceramic materials.
A hydrogen sintering furnace, vacuum induction tungsten first principle and use vacuum induction furnace tungsten is after vacuum filling hydrogen maintenance conditions, using the principle of intermediate frequency induction heating, the high temperature of tungsten crucible in the winding, after thermal conduction to the work, suitable for scientific research, military units for hard metal such as tungsten, molybdenum and its alloy powder sintering molding. Second, primary layout and layout method for vertical, the discharging method. Its primary group became: electric furnace body, vacuum system, water cooling system, pneumatic system, hydraulic system and front-rear institutions, base, workbench, induction heating equipment (tungsten heater and high-grade thermal insulation material), into the electric equipment, intermediate frequency power supply and electrical control system, etc. Third, primary function After vacuum filling the hydrogen gas maintenance and control atmosphere in furnace pressure and sintering conditions.

The characteristics of vacuum brazing furnace is not the same

The characteristics of vacuum brazing furnace is not the same

(1) and electrothermal vacuum brazing furnace for annealing, quenching and tempering heat treatment.
(2) as a result of radiant tube burner, compared with electrothermal, two-thirds fuel costs can be cut.
(3) CO2 emissions compared with electrothermal can be reduced by 40%.
(4) regenerative radiant tube burner improved and radiant tube flange of water so as to realize the large radiant tube flange vacuum seal.

The superiority of multi-oven continuous vacuum furnace

The superiority of multi-oven continuous vacuum furnace

1) multi-oven continuous vacuum furnace in the process of running, preheating chamber, high temperature studio keeps in constant temperature and high vacuum state, to avoid the moist air to the frequent attacks and pollution of heating area, greatly reduces the suction of the vacuum system load and improve the work vacuum, vacuum time.
(2) to avoid the thermal shock of the impact of the heater, high temperature oxidation prevent heater, improve the service life of the heating chamber.
(3) without having to repeatedly as intermittent vacuum furnace for pumping air into vacuum state, put the atmosphere, warming and cooling is both time-consuming and energy-consuming process operation, thus greatly improve production efficiency. Generally speaking, 3 rooms, five, seven continuous vacuum resistance furnace its production efficiency are the same size of hot spots of single chamber intermittent vacuum furnace three times, five times, ten times.
(4) a large number of save energy, reduce the production cost.
(5) improve the quality of products, ensure the product quality is stable, reliable, consistent, and improve the product percent of pass.
6. High degree of automation and easy operation.

Vacuum furnace characteristics

Vacuum furnace characteristics

Two professional vacuum heat treatment of vacuum technology and heat treatment technology that combines an integrated, refers to the whole and part of heat treatment process in a vacuum. Our country could be divided into low, medium and high vacuum and high vacuum. At present most of the vacuum heat treatment furnace work vacuum degree in 1.33 ~ 1.33 x 10 ˉ sup3; Pa.
Industrial vacuum hot water boiler from Zurich polytechnic university in 1972 invented the basic principles of vacuum boiler. Founded in 1974 by the Japanese tanokuma polytechnic institute is developed on the basis of principle of the vacuum hot water boiler, and won the invention patent, in 1982, South Korea Fuji corporation will vacuum hot water boiler, boiler to market, become the brand of the first commercial use vacuum boiler:
Next, with the technology quickly popular in European and American countries, become a landmark greenhouse culture of new products.
The late 1980 s, Fuji, formal mass production vacuum hot water boiler, boiler, products not only domestic gained popularity in Korea, but also sells in distant markets, including Russia, China, southeast Asia, the americas, Europe and other more than 40 countries and regions.

The function of vacuum brazing furnace

The function of vacuum brazing furnace

The function of vacuum brazing furnace, vacuum brazing furnace quenching, tempering, annealing) is through the material or parts in the condition of vacuum brazing furnace according to the technical process of heating, cooling, to achieve the expected performance a processing method. Vacuum brazing furnace brazing in the condition of vacuum brazing furnace, heating up a set of components to the filler metal melting point temperature above, but below the substrate metal melting point temperature, with the aid of filler metal to wet and flow of metal in the matrix form of weld a welding process. (brazing temperature in different material varies) vacuum brazing furnace sintering in the condition of vacuum brazing furnace, heat the metal powder products, make the adjacent metal powder grain by adhesion and diffusion effect and a method of burn into parts. Vacuum brazing furnace plus magnetic is mainly suitable for metal materials and magnetic treatment.

Analysis of the single crystal furnace furnace cover for profile

Analysis of the single crystal furnace furnace cover for profile

Single crystal furnace furnace cover is commonly oval head. Due to its good mechanical properties and processing technology. It is widely used in industry. In the production of single crystal furnace, often encountered in the welding ellipsoidal head to take over the problem. This kind of production enterprises in China are generally use manual and welding. The backward mode of processing not only processing efficiency is low, and the machining quality is difficult to meet the design requirements, the production efficiency and welding quality is affected.
Main components of the ellipsoidal head is half elliptical shell. Shell is limited by two surface objects, uniform shell thickness of each point in the midpoint of the curved surface is called shell surface, the surface formed by surface of revolution is called the revolving shell, the shell surface in the busbar rotary formed a revolving shell. Therefore, represented by an elliptical head surface in busbar elliptical head geometry.
Spread principle, the single crystal furnace general elliptical head takes over the shape of cylinder cover, the case is the top surface is divided into many small line segments, each segment and the adjacent two plain wire and nozzle-vessel junction line to form a quadrilateral, obtained the side length of each side of the quadrilateral can expand the quadrilateral, such one by one on all quadrilateral is the ellipse over expansion plan.
Surface is considered to be a move line in space motion trajectory, the line is called bus, bus bar in the surface in a position, known as plain wire. Available to take over the plain wire cylinder and elliptical head surface intersection; Then calculate the corresponding node. Point to the distance on the surface of the ellipse to take over the top is the prayer plain wire length.
General furnace cover elliptical head over the single crystal furnace is a common problem in practical production. We use parallel expansion method taking over a mathematical model is established, with the aid of computer promptly and accurately draw a diagram, fast and exact underground material, thus to take over the precast, slope and the curve of the head group H in uniform after clearance, improved the welding speed, improves the production efficiency and product quality.

The two kinds of single crystal furnace control method

The two kinds of single crystal furnace control method

Do you know about single crystal furnace? Single crystal furnace in the process control method specific how should do?
The first: zone melting method
Zone melting method, the operation of the process is to avoid the pollution caused by chemical reaction between melt and crucible, and developed without crucible crystal growth process.
This method applies only to melt the surface tension coefficient of crystal growth. Vertical installed a polycrystal bar, use water cooled rf, melt heat should make one end of the stick. On the surface tension of the melt and levitation force produced by the electric field, make the melt and crystal rod sticking together. Put a treated with directional seed crystal end into the melt, using the relative motion of heater and crystal melt polycrystalline rods melt unceasingly, but on the other side gradually generated crystals. This method makes the growth of crystals will not polluted by the crucible.
The second: the czochralski method
Czochralski method is also called "klaas base method" (Czochralski method, hereinafter referred to as CZ method. Is the main method of single crystal silicon growth. The law is in czochralski method (CZ) single crystal furnace, the raw material (polysilicon) is placed in a crucible of the heated to a molten state, seed crystal, introduced into the molten silicon, seed crystal sandwiched between the lower end of the rod, appropriate control temperature. When the seed crystal and molten silicon to achieve balance, to support the surface tension of liquid and will be against the adsorption in the bottom of the seed crystal. The rotation while tyra seed crystal, the adsorption of melt movement will be as the seed crystal up. Upward movement in the process of the melt temperature to drop, will make the melt condensation into crystalline and grow into a single crystal rods as seed crystal direction.

The cause of the vacuum furnace graphite electrode loss analysis and derogation measures

The cause of the vacuum furnace graphite electrode loss analysis and derogation measures

The service life of graphite electrode in a certain extent determines the production capacity of the hard zinc vacuum distillation furnace and the production cost, the article the cause of the vacuum furnace using graphite electrode loss is analyzed, combining with production practice, put forward the measures to reduce the loss of graphite electrode, received good results.
A domestic processing hard zinc smelter adopts horizontal vacuum furnace, recovery of indium, germanium, zinc and other valuable metals, muffle furnace with original treatment technique - compared to the electric furnace process, the recovery of valuable metals, security, environmental protection and other indicators have greatly improved, created a considerable economic and social benefits. Hard zinc vacuum distillation furnace with graphite electrode as a heating element, converts electrical energy into heat energy, is crucial parts in the vacuum distillation furnace, to some extent, it determines the work ability of the vacuum furnace. In the production of vacuum distillation furnace processing hard zinc process, although the graphite electrode is easy to consume parts, but if its service life is too short, frequent replacing electrode, not only increase the workload of maintenance and the production cost, and the serious influence production furnace smooth continuation of time, thereby significantly reducing the hard zinc processing. So the analysis of the factors affecting the service life of graphite electrode, and find out effective countermeasures, improve the service life of the electrode, to ensure production run smoothly, improve the hard zinc processing and reduce the production cost is of great significance.