There are two kinds of defects in vacuum system of semiconductor equipment: one is the defect of vacuum pump unit and measuring system, the other is the disclosure of vacuum system. As for the first kind of defect, it can be confirmed by testing the limit vacuum degree of vacuum pump or changing ...

Roots vacuum pump unit used in dry gas concentration unit on investigation Through the investigation on the air tightness, load test run and operation of the two roots vacuum pump units in the dry gas concentration unit, it is found that the two units can basically meet the current consumption de...

To form a roots vacuum unit, the selection of the pumping speed ratio between the roots vacuum pump and the backing pump is very important. Because the compression ratio of the Roots vacuum pump is very limited. This compression ratio determines the capacity of the backing pump, because the compr...

New generation of high pressure, large flow, SSR series bipolar series Roots blower. The introduction of new products has been affirmed by new and old customers, which has made up for the vacancy in China. SSR series bipolar series Roots blower has high pressure, large flow rate, low noise and al...

Lithium bromide absorption refrigerating machine with rotary vane vacuum pumps and vacuum cooling water, refrigerant water pump of water ring vacuum pump used for vacuum and low vacuum in the vacuum area, respectively. Therefore, ordinary vacuum valves can be selected, such as diaphragm vacuum va...

Diaphragm valve is a flexible diaphragm in the valve body and valve cover, which is sealed by the up and down stroke of diaphragm. The utility model has the advantages of simple structure, easy to disassemble and maintain quickly; due to its control structure, the jade medium path is separated to...

Oil mist dust remover (also known as oil mist purification equipment, oil mist separator, oil mist filter, oil mist collector, oil mist purifier) is used to solve the workshop environmental problems such as oil mist, water mist or dust in machining. It is widely used in CNC lathes, cleaning machi...

Vacuum chamber vacuum refers to the given space of gas below atmospheric pressure. Vacuum is relative to atmospheric pressure, not that there is no matter in the space Vacuum is a concept in physics, which initially reflects the state of nothingness. That is, vacuum is not nothing, but the transf...

resistance vacuum gauge composition: Resistance vacuum gauge consists of resistance gauge, ionization gauge and electronic circuit. The resistance unit circuit completes the constant temperature and power regulation of resistance gauge hot wire, as well as the sampling and amplification of bridge...

Optical coating vacuum chamber is composed of thin film layers, which can improve the reflection performance or transmittance of the optical system through interference effect. There are various processing types of optical coating vacuum cavity Optical coating vacuum chamber is composed of thin f...