磨削碳钢淬火件时,在磨削表面上会产生磨削退火和磨削裂纹。在通常情况下磨削工序都是最终工序,所以往往会造成废品。磨削退火俗称磨削瘤。常见于磨料过粗,磨削进刀过大时。例如用砂轮机切断淬火件时,在切断面上会出现黄兰色的退火色。这表明该切割面已产生磨削退火。但是在磨削加工中这种退火色往往不太明显,难以判断,这时我们可以借助腐蚀法加以鉴别。下面介绍两种酸性腐蚀液的配方: Grinding carbon steel quenching, the grinding surface will have grinding annealing and grinding cracks. Under normal circumstances grinding process is the final process, it will often result in waste. Grinding annealing commonly known as grinding tumor. Common in the abrasive too coarse, grinding knife too large. For example, with a grinder cut quenching pieces, the cut surface will appear yellow-blue annealing color. This shows that the cutting surface has been produced by grinding and annealing. But in the grinding process, this annealing color is often not obvious, it is difficult to judge, then we can identify by means of corrosion. The following describes the formulation of two acidic etching solution: