有一次在加工某种零件时,发现材料成分不对、经调查,原来在下料时,将一些其他成分的材料混了进去,发生了混料事故。如不及时将材料分选开。就会使这批零件全部报废,不仅造成很大经济损失,还误了计划的完成。对这批零件,既不能每个都切下一点去化验,也不能按热处理要求继续进行下道工序。我们试了很多办法,都不能区分它们,后来试一下 Once in the processing of a certain kind of parts, found that the composition of the material is wrong, after investigation, originally in the material, the material will be mixed with some other ingredients into the mixing accident occurred. If not in a timely manner the material sorting open. It will make all these parts scrapped, not only causing great economic losses, but also mistakenly planned completion. For these parts, neither can cut off a little to test, can not press the heat treatment to continue the next procedure. We tried a lot of ways, we can not distinguish between them, then try it