Gas phase corrosion cavity capable of adjusting internal and external pressure difference and method for gas phase corrosion by using same

Gas phase corrosion cavity capable of adjusting internal and external pressure difference and method for gas phase corrosion by using same

  • CN 107,610,998 B
  • Filed: 07/21/2017
  • Issued: 09/15/2020
  • Est. Priority Date: 07/21/2017
  • Status: Active Grant
First Claim
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1. A gas phase corrosion cavity is characterized by comprising an upper cavity, a lower cavity and a lifting control device, wherein the lifting control device is connected with the upper cavity and controls the upper and lower movement of the upper cavity to enable the gas phase corrosion cavity to be in a closed or open state, the lower cavity is fixed, a cavity air inlet and a cavity air outlet are arranged on the lower cavity,the gas phase corrosion cavity can adjust the internal and external pressure difference and is provided with:

  • a cavity pumping control device which is connected with the cavity gas outlet of the lower cavity and is used for adjusting the internal and external pressure difference of the gas phase corrosion cavity,the cavity suction control device comprises an air suction port, an air exhaust port and a flow control mechanism, wherein the flow control mechanism of the cavity suction control device comprises a gas baffle, a baffle rotation driving module, a gas pressure or internal and external cavity pressure difference detection module, a gas flow detection module and a control module.

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