Experimental analysis of wear of tooth tip sealing strip in scroll compressor
The scroll compressor seal wears seriously in the working process,resulting in the scroll compressor life reduction.The PEEK material was modified by C and PI,and then mixed proportionally by hot press at 365℃to obtain C-PI-PEEK material.The PEEK material and the modified material C-PI-PEEK were paired with 45 steel balls respectively,and the friction experiment was carried out by CFT-I spherical friction testing machine,and the wear properties of the two materials were compared under different loads.At the same time,the wear mechanism of modified C-PI-PEEK material under different loads was studied,and the formation rule of transfer film on the friction surface was analyzed by scanning electron microscopy(SEM/EDS)and 3D laser scanning electron microscopy.The experimental results show that the modified C-PI-PEEK composite has lower roughness and higher hardness than pure PEEK.The modified C-PI-PEEK composite has little friction coefficient and low wear rate under different loads.With the increase of load,the wear mecha-nism of the C-PI-PEEK composite changes from fatigue wear to adhesive wear and abrasive wear,accompanied by oxidation wear.
万方数据
维普
