Stainless steel gear pump equipment coating process: As a result of ordinary rotary pump oil spills, noise, oil pollution, high energy consumption and vibration and Other issues to the user adversely affect the user, such as bio-products industry and the semiconductor industry, oil vapor pollution and process technology to return Oil valve problem. Stainless steel gear pump equipment coating process, coating under 20 ~ 40Pa vacuum conditions, if the application of ordinary rotary vane vacuum pump as a front-stage vacuum pump coating equipment will cause pollution, affecting the amount of film. The semiconductor wafer manufacturing process which uses the pump compared with the use of dry pump, the yield rate of 509l left the gap between the left and the oil mist emitted steam pollution of the environment. In the scientific instrumentation industry, especially in the analytical instrumentation industry, the use of stainless steel gear pumps will adversely affect the test results. Large synchrotron radiation beam line mining up the drain with vortex oil-free vacuum pump as a front-stage vacuum pump role is quite obvious. In addition vortex oil-free vacuum pump consumption in addition to ordinary oil pump to the user to bring the environmental pollution and annoyance.
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