Pycnid layer and deformation layer for mechanical seal applications

Pycnid layer and deformation layer for mechanical seal applications

　2017-03-15　　

Pythian layer and deformation layer for mechanical seal applications

The deformed layer has high hardness due to hardening. The Pythagorean layer is a thin layer formed by the melting and plastic flow of materials during surface processing and forming. Depending on the environment, there are three types of film cyanide above the surface. The thinnest is a chemical adsorption film: followed by a monolayer lubricating film (common dirt film), which is the most basic boundary layer. The thickest is the oxide film, which is composed of composite oxides. The closer to air, the higher the oxygen-to-iron ratio. The nature of the oxide film is completely different from the nature of the material of the part itself. During the friction process, the structure and properties of the surface film and the law of rupture and regeneration have a great influence on the friction performance. If the friction mainly occurs in the film layer, the existence of the film makes the metal friction surface less prone to adhesion, the friction coefficient will be reduced, and the wear may be reduced.　　357.html,

The friction state, friction influencing factors and friction characteristics in the application of mechanical seal 　　 mechanical seal application