The material of bolt gasket is generally 65MN spring steel, 70# carbon steel, 3Cr13, stainless steel material SUS304, SUS316 and phosphor bronze material.
The bolt gasket is a round or shaped gasket used to provide sealing, cushioning, anti-loosening and other functions between the bolt and the connector.
Its functions include:
Sealing effect: The bolt gasket can fill the gap between the bolt and the connector to prevent the infiltration or leakage of liquid, gas or solid particles. It can provide reliable sealing performance to prevent liquid or gas leakage, thus ensuring the safety and reliability of the connection site.
Cushioning: The bolt gasket can provide a cushioning effect between the bolt and the connector, reducing the stress and pressure caused by vibration, impact or deformation, thereby protecting the integrity and stability of the connection.
Anti-loosening action: The bolt gasket can increase the friction between the bolt and the connector to prevent it from loosening due to vibration or vibration. It can provide a certain friction resistance, so that the bolts remain tight, thus ensuring the reliability of the connection.
Pressure equalization: The bolt gasket can evenly distribute the pressure between the bolt and the connector, so that the connection part can bear uniform force and avoid local damage caused by concentrated stress.
When the material of the gasket is used normally, the requirements for the material should be particularly strict, and if the material is selected incorrectly or improperly, it is easy to cause equipment accidents. such as the medium for acid, alkali, gasket must be acid and alkali resistant. the medium is high temperature and high pressure, the gasket winding part must be graphite can not be asbestos.
The goal of selecting gaskets when bolted is to disperse the strength of the connected material, reduce the damage to the surface of the connected material when twisting the bolt or nut, or prevent it from loosening. When choosing the gasket, you can choose the spring gasket to relax, to protect the surface of the connected material, you can choose a general flat gasket. The principle of selection is that the inner diameter of the gasket is slightly larger than the outer diameter of the bolt, which is too big for the frame and too small for use. When connecting screws, choose a flat gasket that is slightly larger than the largest part of the screw exterior.