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Precautions for choosing vacuum pump for extrusion

Precautions for choosing vacuum pump for extrusion

  • Time of issue:2022-04-10
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Precautions for choosing vacuum pump for extrusion

In order to allow people to better choose and use vacuum pumps, vacuum pump for extrusion manufacturers have summarized the following points for attention, so that people can choose suitable products. According to the actual use, we should pay attention to these points.

Wholesale vacuum pump for extrusion Manufacturers china
Will the vibration generated by the vacuum pump for extrusion affect the process and the environment? If the process flow does not support it, choose a pump without vibration or take a series of measures to prevent vibration.
Know the composition of the pumped gas, whether there is particulate dust in the gas, and whether it is corrosive. When choosing a vacuum pump for extrusion, you need to know the gas composition, and you need to choose the appropriate pump for the gas being pumped. If the gas contains vapors, particles and corrosive gases, consider installing auxiliary equipment on the inlet piping of the pump.
At its working pressure, the vacuum pump for extrusion can expel all gases generated during the vacuum equipment process.
Correct combination of vacuum pumps. Sometimes, one pump cannot meet the pumping requirements. Because the vacuum pump selectively sucks in air, a combination of several pumps is required to complement each other to meet the suction requirements. If the titanium sublimation pump has a high pumping speed for hydrogen, but cannot pump helium, and the triode sputtering ion pump (or bipolar asymmetric cathode sputtering ion pump) has a certain pumping speed for argon, the vacuum device will get the corresponding of vacuum.
Requirements for oil pollution of vacuum equipment. If the equipment is clearly required to be oil-free, various oil-free pumps should be used, such as water ring pumps, molecular sieve adsorption pumps, sputtering ion pumps, cryogenic pumps, etc. If the requirements are not strict, you can choose an oil pump and take some measures to prevent oil pollution.
Correctly select the working point of vacuum pump for extrusion. Each pump has a certain working pressure range. Therefore, the working point of the pump should be selected within this range, and it is not allowed to work at 25~30mmHg for a long time.
What impact does the oil vapor discharged from the vacuum pump have on the environment? If environmental pollution is not allowed, an oil-free vacuum pump can be selected, or the oil vapor can be discharged outdoors.
The working pressure of the vacuum pump should meet the working pressure requirements of vacuum and vacuum equipment. For example, the vacuum drying process requires a working vacuum of 10 mmHg, the ultimate vacuum of the selected vacuum pump should be at least 2 mmHg, and 1 mmHg is recommended. Typically, the ultimate vacuum of the pump is chosen to be half to an order of magnitude higher than the working vacuum of the vacuum equipment.
Then consider the initial installation price, operation and maintenance cost of vacuum pump for extrusion, and choose a cost-effective vacuum pump according to the actual situation.

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