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在机械制造行业中,由于对材料管理不严,制度不健全,生产过程中零件错料、混料现象时有发生,对产品质量造成很大影响。 成批错料零件,在普通淬火工序中较易发现,而在炭面处理时,例如渗碳、发黑等则不易鉴别。而混料零件,淬火时经过首检和抽检,则不一定发现。即使发现了,也不可能对每一个零件逐一破坏化验。 下面介绍一种不经化验就能鉴别钢材错料的方法,是从长期的热处理检验实践中积累出的一全快速
In the machinery manufacturing industry, due to the material management is not strict, the system is not perfect, the parts in the production process of wrong materials, mixing phenomenon often occur, the product quality has a significant impact. Batches of wrong material parts, easier to find in the ordinary quenching process, and carbon surface treatment, such as carburizing, black is not easy to identify. The mixing parts, quenching the first inspection and sampling, you may not be found. Even if found, it is impossible for each part to destroy the assay one by one. The following describes a test without the ability to identify the wrong material steel is a long-term heat treatment test from the accumulation of a full-speed test