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在机械制造工厂中发生钢材混料时,传统的鉴别方法是,把已制成的成品或半成品逐个用砂轮磨火花,或者进行光谱鉴别。前者劳动强度大,并且需要有一定的火花鉴别经验;后者分选速度慢,批量大时工作者视力极度疲劳。对于一些已经氧化、发蓝的零件,还不允许表面打磨或局部退火,上述两种方法都不能应用。在生产实践中,我们试成了一种利用温差电势鉴别钢材的方法,它具有不损坏零件、
In the case of steel compounding in mechanical manufacturing plants, the traditional method of identification is to grind finished or semi-finished products one by one with a grinding wheel or to perform spectral discrimination. The former labor-intensive, and need to have some experience in the identification of spark; the latter sorting speed is slow, large batch of workers when the visual fatigue. For some already oxidized, bluish parts, does not allow surface grinding or local annealing, the above two methods can not be applied. In the production practice, we try to become a method of using temperature difference potential identification of steel, it has no damage to parts,