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平衡轴是X195柴油机中一个重要零件,加工要求较高,质量不易保证,特别在(?)质工序容易发生断裂。我厂在生产中曾出现过批量性废品。有的发生明显开裂或掉块,有的细小裂纹直到精磨时才被发现,浪费了材料和工时.为了解决这个问题,我们进行了技术分析。经过反复试验初步找出了防止加工中出现裂纹的办法,现介绍如下. 1.直观断裂症状平衡轴裂纹具有规律性,其中破坏性断裂约占20%,显性裂痕约占50%,裂纹在精
The balance shaft is an important part of X195 diesel engine. The machining requirements are high and the quality is not easy to guarantee. In particular, it is easy to fracture during the quality control process. Our factory has appeared in the production of bulk waste. Some obvious cracking or dropping block, and some small cracks until refined grinding was found, wasting material and working hours.In order to solve this problem, we conducted a technical analysis. After repeated tests initially found ways to prevent the occurrence of cracks in the processing, are described below. 1. Visual fracture symptoms balance shaft crack regularity, of which about 20% destructive fracture, dominant fissure about 50%, cracks in fine