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山东施可丰费县化工有限公司,对4M8K4-36/20压缩机高压段,采用无油润滑技术。 1 活塞环采用新型金属塑料复合材料 该复合材料是在铜基上用粉沫冶金的方式烧结5mm厚的铜粉层,然后在铜粉层中浸渍聚四氟乙烯塑料而形成。在工作时活塞环外层1.0～1.5mm厚的复合材料层中的聚四氟乙烯参与磨擦,而材料的本体为铜,导热性能好,热膨胀系数小,因此,该材料耐磨性好,热态强度高,许用PV值高,在高压下工作不易被磨损。
Shandong Shi Feng Chemical Co., Ltd. Fife, 4M8K4-36 / 20 compressor high pressure section, the use of oil-free lubrication technology. 1 piston ring with a new metal-plastic composite material The composite material is a copper-based powder metallurgy sintered 5mm thick copper powder layer, and then impregnated in the copper powder layer of PTFE plastic and formed. At work, the outer layer of the piston ring 1.0 ~ 1.5mm thick composite layer of PTFE in the friction, and the material of the body of copper, good thermal conductivity, thermal expansion coefficient, therefore, the material wear resistance, heat State high strength, allowable PV value is high, work under high pressure is not easy to be worn.