What is the stainless steel screw vacuum stabilization treatment

Update:13-02-2019
Summary:

The corrosion resistance of 1Cr18Ni9Ti stainless steel […]

The corrosion resistance of 1Cr18Ni9Ti stainless steel cold-worked screws was reduced. The parts were treated by vacuum quenching, vacuum stabilization treatment and stainless steel screw chemical passivation. The corrosion of the parts before and after treatment was investigated by neutral salt spray test. Sexual change.

The results show that the above treatment process restores the corrosion resistance of the parts and ensures the reliability of the environmental resistance of the stainless steel electrical connectors. The corrosion resistance of 1Cr18Ni9Ti stainless steel cold-worked screws was reduced. The parts were treated by vacuum quenching, vacuum stabilization treatment and chemical passivation. The corrosion resistance of parts before and after treatment was investigated by neutral salt spray test. Variety. The results show that the above treatment process restores the corrosion resistance of the parts and ensures the reliability of the stainless steel stainless steel U-bolt electrical connector. The bolted flange connection system is the most commonly used connection device in industrial pressure vessels and pipes. The gasket in the connection system is the most important component that directly affects the tightness of the seal connection. Research on the magnitude and distribution of stresses of gaskets under different loads and different sizes is of great significance for studying the sealing performance of gaskets and preventing leakage. First, the general structure and types of gaskets are introduced, and the important performance requirements of gaskets are described. The compression springback test curve of the self-made non-asbestos paper metal wound gasket was fitted and analyzed. The compression springback curve equation which can characterize the compression back elastic energy of the gasket was obtained. After calculation, the curve and actual curve obtained by the method were calculated. The similarity is higher, which can better characterize the compression resilience of the gasket. Secondly, the deformation and coordination analysis of the bolt flange connection structure is carried out. Based on the DIN2505 method, the analytical formula of the flange deflection angle is obtained, and the radial distribution of the compression stress of the asbestos-free metal wound gasket in the flange joint is established. algorithm.