Because the two-stage rotary vane vacuum pump has one more cylinder block than the single-stage rotary vane vacuum pump in structure, the extracted gas is compressed by the multi-stage cylinder block, and the final vacuum degree is much better than the single-stage rotary vane vacuum pump. For example, the vacuum of a single-stage rotary vane vacuum pump is 0.1-0.5mbar, while the vacuum of a two-stage vacuum pump can reach about 4*10-4 mbar.
For the production process, the higher the vacuum is not the better, suitable for their own production needs, is the best choice. Too low vacuum will make the product can not achieve the desired effect, requiring secondary processing, increasing cost; and too high vacuum, may damage the product density, or even make the product irreparable, resulting in scrap products.
In terms of industrial use, the oil-type rotary vane vacuum pump has a wider range of applications and is recognized and used by a larger group. Typically used in vacuum packaging and food processing technology thermoforming (suction, vacuuming, foaming molding) vacuum degassing, defoaming, infiltration, concentration, drying vacuum adsorption, fixture, hanger, sucker, etc. Oil-type rotary vane vacuum pump in practical application can be according to the needs of the customer's own manufacturing process to transform the industrial vacuum central system into The powerful front pump supplies the vacuum needed for the production process.
没有评论:
发表评论