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针对发动机的凸轮、挺杆这对摩擦副常常在跑合阶段出现擦伤现象,人们对凸轮或挺杆进行锰系的磷化处理。 作者研究了三种不同的磷化液在四种不同材料上产生的磷化膜的表面质量,通过对磷化膜元素含量的电子探针分析,说明了磷化液中锌离子与镍离子对磷化膜形成的不同作用。另外,在环-块试验机上的磨损实验表明,在GCr15钢上用镍盐作催化剂的磷化液产生的均匀紧密的磷化膜具有较好的跑合特性。
For the engine cam, tappet of the pair of friction often appear in the run-in phase of the phenomenon of abrasion, people cam or tappet manganese phosphating. The authors studied the surface quality of the phosphate films produced by three different phosphating solutions on four different materials. Electron probe analysis of the elemental contents of the phosphating films demonstrated that the zinc ions and the nickel ions in the phosphating solution Different roles of phosphating film formation. In addition, wear tests on a ring-block tester showed that a homogeneous and compact phosphating film produced from a phosphating solution using nickel salt as a catalyst on GCr15 steel had better run-in characteristics.