![]() The influence of pressure on permanent deformation The pressure of hydraulic system is an important factor that causes permanent deformation of flat washers. For flat washers that work at sub-zero temperatures, the elasticity of rubber materials that are not resistant to low temperatures will decrease sharply at -50☌ to -60☌, and the stamping parts will lose their elasticity.Ģ. Low temperature will reduce the elasticity of the rubber material, or even disappear. When the permanent deformation is greater than 40%, the flat gasket loses its sealing ability and leaks. The higher the operating temperature, the greater the compression variable of the flat washer. ![]() High temperature will accelerate the aging of rubber. The influence of temperature on permanent deformation. As a result, the sealing effect is reduced, and finally leakage occurs.ġ. Permanent deformation Since the synthetic rubber material used in the flat gasket is an elastic material, the initial design of the pressing amount and rebound blocking ability of the stamping parts after long-term use, what are the uses of the flat gasket in the installation and use, the elasticity is reduced, and permanent deformation occurs. Under high temperature and high pressure working conditions, the main reason for the failure of flat gaskets is permanent deformation, squeezing into the sealing gap and distortion during movement. ![]() In the use of construction machinery, flat gaskets are widely used in hydraulic systems.
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