Investigation On Tribological Behaviors Of Macromolecular Composites

As a large scale capacity for petro-chemical unit production, the enterprise has increased the dependence for dynamic equipment. During production, because of the reasons for design, manufacturing and material property, the fault rate for equipment is still high, especially for the failure of components caused by wear and it is also a very common failure. This topic has used a reciprocating friction experiment machine made by Machine & electricity institute of Lanzhou Industrial University, we have taken some wearing experiments for these four high polymers anti-wearing materials--- Polyfluortetraethylene, Nylon 1010, Polyfluortetraethylene with filling of graphite and Polyfluortetraethylene with filling polystyrene, which are widely used for manufacturing a support & mitigation piston ring for reciprocating compressing machine in petro-chemical industry.After study, we find that although nylon 1010 has a better anti-wearing property and a small friction coefficient, it only can be used for small and low pressure compressor because the Heat warps is lower. These poly-materials, Polyfluortetraethylene with filling of Graphite and Ekonol, can effectively improve the property of Polyfluortetrae- thylene. The hardness of Poly-material is increased, the friction coefficient reduced, Line expanding coefficient reduced. Especially for Polyfluortetraethylene after filling of Ekonol, the hardness is obviously increased, the temperature for heating warps is increased, the anti-impact good. The material can be used for a reciprocating compressor with large scale, high temperature and high pressure, and has a great application value for increasing the work time of piston ring of reciprocating compressor in petro-chemical industry.