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例1 安装活塞环时,一些机手为了不让环口错位,在各环槽内抹上黄油将活塞环粘住。当发动机工作时,使黄油在高温作用下形成胶状物,影响活塞环的弹力,使其封气性能大大降低。另外,黄油结成的炭渣还会加剧机件磨损。例2 有的机手在安装气缸垫时,在气缸垫两面抹上黄油,试图增加气缸的密封性,结果适得其反。由于发动机工作时,缸体与缸盖的温度很高,黄油遇到高温后流失,使缸垫与缸盖和机体的接合面产生缝隙,造成漏气。再则黄油遇高温后产生积炭,缸垫易老化变质,并给下次拆卸增加困难。例3 在安装S195柴油机调速器时,有的机手为了安装方便,在调速器支架内涂上黄油把球粘住。结
Example 1 When installing the piston ring, some hands in order not to misalignment of the ring, the ring groove in the butter to stick the piston ring. When the engine work, the butter at high temperature to form a jelly, affecting the elastic ring piston, so that its sealing performance greatly reduced. In addition, the formation of cinder butter will also aggravate the wear parts. Example 2 Some hand tools in the installation of cylinder head gasket, padded on both sides of the cylinder pad butter, trying to increase the cylinder seal, the result was the opposite. As the engine work, the cylinder block and the cylinder head temperature is high, the loss of butter encountered high temperatures, the cylinder head gasket and the cylinder body and the joint surface of the gap, resulting in leakage. Then the butter met coke after high temperature, cylinder pad easy aging deterioration, and to the difficulty of the next disassembly. Example 3 When installing the S195 diesel engine governor, some hand-held hand-held applicators have grease applied to the governor bracket to hold the ball in place. Knot