The advantages and benefits of vacuum oil quenching furnace

The advantages and benefits of vacuum oil quenching furnace

Vacuum oil quenching furnace is widely used in ceramics, metallurgy, electronics, glass, chemical, mechanical, refractories, the development of new materials, special materials and building materials production and experiment.
Vacuum oil quenching furnace has many advantages, is widely used in various places, then introduce you to:
Vacuum oil quenching furnace operation is convenient, programmable, PID self-tuning, automatic heating, automatic heat preservation, cooling, without unattended. Can match with the computer communications through computer operation furnace (launch electric furnace, to stop the electric furnace, suspension temperature and set temperature curve, store temperature curve, history curve, etc.). In addition also has the advantages of quickly increase, energy saving furnace imported refractory materials, heat preservation performance is good, high heat resistance, resistance to thermal shock.
For gas quenching furnace, suit to deal with a higher hardenability materials of small (e.g., 35 crmnsi small) and high hardenability of material artifacts, oil quenching furnace application than the former is relatively wide, the highest because of high pressure gas cooling rate is smaller than the cooling speed of quench oil a lot; But gas quenching furnace operation and maintenance is simple compared to the latter. In short what kind of furnace is mainly to choose according to the heat treatment performance of products to choose.

What are the working characteristics of the vacuum furnace advantage?

What are the working characteristics of the vacuum furnace advantage?

Vacuum furnace is the use of the characteristics of water under the condition of low pressure has a low boiling point, fast heat sealing furnace heat medium filled in water, high temperature steam, heat medium water boiling evaporating out water vapor condenses on the heat exchange tube heat exchange tube in cold water, hot water supply.
(1) vacuum negative pressure operation, really do not explode, excellent safety.
(2) the success of the bearing steel high temperature, high separation, prolongs the service life of 2-3 times, design service life of up to 30 years.
(3) the overall design scientific, reasonable and compact, covers an area of 50-70% saving.
(4) in the body to heat exchange, the machine efficiency is as high as 91% above, start after 2-3 minutes can provide 70-80 ℃ hot water, greatly reducing the preheating period and reduce energy waste.
(5) automatic control, intelligent control, unmanned or remote network.
(6) the built-in stainless steel heat exchanger, water without any pollution.
(7) by indirect + + external heat exchanger (boiler circulating pump + + material installation fee) heating form, installation cost savings more than 30-40%.
(8) with high efficiency, fast heating, good heat exchange, the fuel costs, saving more than 20-30%.

Installation of tubular vacuum furnace

Installation of tubular vacuum furnace

1. Please read this manual carefully before installation
2. Be careful when installation, can't touch quartz tube, parts clean up first
Assembly sequence: external pressure ring 1 from quartz tube into the first, then 1 set of silicone rubber o-rings into, again to set into the internal pressure ring, silicone rubber o-rings then 2 sets into; Strike two silicone rubber circle to the right position, go up to 2 sets of external pressure ring. (note: at this time should adjust within two silicon rubber o-rings and pressure ring position, make the quartz tube end not on outer pressure ring end face, the 2 mm gap) should be reserved.
After installed the diagram below, the appropriate pressure, no card.
The M5 * 30 with inner hexagon spanner socket head cap screw screwing in; (note: before screwing in the tag, again on the threaded hole, screwing should be one by one, each bolt screwing in 90 degrees, so the three screws tighten. Absolutely can't tighten a screw to spin again after another two, to ensure that the three screws evenly at the same time below after tightening the screw assembly of air inlet pipe, valve and pressure gauge assembly: installed at one end, and then insert the quartz tube furnace lining, the quartz tube at the other end also according to the above method to install. After installation of both sides, adjust the quartz tube in the center of the furnace body, then good trachea, the installation is complete.

Practical applications of induction furnace

Practical applications of induction furnace

A, induction furnace used for heat treatment: all kinds of metal partial or whole quenching, annealing, tempering, diathermy;
Second, the induction furnace used for thermal type: the whole parts forging, forging, hot upsetting, hot rolling;
Three, induction furnace is used for welding, brazing of various kinds of metal products, all kinds of cutter blades, saw blade welding, steel pipe, copper pipe welding, the same dissimilar metal welding;
Four, induction furnace used for smelting metal: gold, silver, copper, iron, aluminum and other metal (vacuum), smelting, casting molding and evaporation coating;
Five, high-frequency heating machine other applications: semiconductor crystal growth, shrink fit, bottle heat sealing, toothpaste heat sealing, powder coating, metal implants plastic, etc.

With low voltage high current vacuum arc furnace

With low voltage high current vacuum arc furnace

Vacuum arc furnace in vacuum heat treatment, the workpiece (or material) can improve the worker, mould service life, no oxidation, no decarburization, surface brightness, small deformation, pollution-free, to save energy and change the mechanical properties and metallurgical properties, etc.
Electric arc furnace is using the principle of metal smelting furnace. Under the environment of vacuum arc furnace is vacuum arc furnace. Vacuum arc smelting with high current, low voltage operation, belong to the short arc. General electric arc voltage for the 22 ~ 65 v, corresponding to the arc length of 20 ~ 50 mm (the latter for big ingot). From smelting white gold experiment success since 1839, in the later one hundred years people started to research of refractory metal smelting. Vacuum arc furnace in 1953 will be officially used in industry. Until 1956, the United States and many European countries still use the self-consuming furnace melting titanium, began in 1955 with the self-consuming furnace steelmaking. Around 1960 self-consuming furnace production has reached more than 30 - ton ingot, begun to take shape. In order to improve the productivity and improve equipment utilization, two furnace share a set of main power, vacuum system and automatic control system.
With low voltage large current: in vacuum container, really a lxlo degrees with a few empty - 1 when the scope of the vacuum container under high voltage electric conductor, glow discharge is produced. In the vacuum heat treatment furnace, serious can produce arc discharge, burning electric heating element, insulation, etc., cause serious accident and loss. As a result, the working voltage of electric heating element of the vacuum heat treatment furnace, are generally not more than 80 a 100 v. In the electric heating element structure design at the same time to take effective measures, such as to avoid a sophisticated components, the spacing between the electrode cannot be too narrow, preventing the occurrence of glow discharge and arc discharge.

Use vacuum solidification shell furnace are as follows

Use vacuum solidification shell furnace are as follows

USES: widely used in ceramics, metallurgy, electronics, glass, chemical, mechanical, refractories, the development of new materials, special materials and building materials production and experiment.
Features: open the door way: side open, lock, door can rotate
1, control accuracy: + / - 1 ℃ furnace temperature uniformity: + / - 1 ℃ (according to the size of the heating chamber and decide).
2, easy to operate, programmable, PID self-tuning, automatic heating, automatic heat preservation, cooling, without unattended. Can match with the computer communications through computer operation furnace (launch electric furnace, to stop the electric furnace, suspension temperature and set temperature curve, store temperature curve, history curve, etc.), software free see: computer control system.
3, quick heating (heating rate of 1 ℃ / h to 40 ℃ / min adjustable).
4, energy saving (furnace is made of imported fiber, high temperature resistant, resistant to thermal shock quench)
5, furnace by the delicate coating corrosion resistance to acid and alkali, furnace and furnace isolation used air-cooled furnace wall temperature close to room temperature
6, the double circuit protection (overtemperature and overpressure, superfluid, section I, power outages, etc.)
7, furnace imported refractory materials, heat preservation performance is good, high heat resistance, resistance to thermal shock
8 categories, temperature: 1200 ℃ 1400 ℃, 1600 ℃, 1700 ℃ 180 ℃ o five.

Vacuum tempering furnace of a little common sense

Vacuum tempering furnace of a little common sense

1. Vacuum furnace processing of titanium alloy, unfavorable use nitrogen as cooling gas, because titanium and nitrogen reaction at high temperature, forming the golden titanium nitride.
2. The vacuum furnace active connection parts are all made of type O rubber ring sealing connection, this part is cooled.
3. The workpiece quenching under a vacuum, vacuum quenching oil should be used, the oil has a lower saturated vapor pressure.
4. Vacuum furnace maintenance should be in the condition of vacuum or pure nitrogen inflator, avoid inspiratory when not in use at ordinary times, moisture absorption.
5. The domestic vacuum furnace pressure increase rate should be no greater than 1.33 Pa/h, some enterprises abroad standard Pa 0.67 / h
6. Vacuum heating is given priority to with radiation, should keep distance between artifacts in the oven.
7. In the process of heating workpiece and furnace material will be deflated, resulting in a vacuum.
8. Vacuum tempering, vacuum annealing, vacuum heating of vacuum solid solution treatment and aging temperature generally the same as the conventional heating temperature when processing.
9. Vacuum tempering furnace should have fast cooling device. Cooling water pressure should be greater than 0.2 Mpa, the flow should be adjustable.
10. The cooling gas: steel generally USES ninety-nine point nine nine five percent purity of nitrogen, nitrogen or argon gas, high temperature alloy with ninety-nine point nine nine nine percent of titanium alloy with ninety-nine point nine nine five percent argon gas.
11. Temperature: after into the workpiece, the general first drainage to Pa 6.67 can heat up when heated

The advantages of vacuum furnace

The advantages of vacuum furnace

1, completely eliminates the oxidation and decarburization on the surface of the workpiece during the process of heating, clean surface without metamorphic layer can be obtained. That only when grinding mill side of cutting tools (such as after twist drill grinding groove on the surface of the decarburization layer directly exposed to improve the performance of blade, cutting relationship greatly.
2, on the environment pollution-free, "three wastes" treatment is not required.
3, obviously improve the temperature measurement, the monitoring precision. 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.
4, high degree of mechanical and electrical integration. Increase in the temperature measurement and control accuracy, on the basis of the workpiece moving, pressure adjustment, power adjustment, etc all can set programming in advance, according to the steps to implement the quenching and tempering.
5, significantly below the salt bath furnace energy consumption. 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.