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本文介绍了荧光磁粉探伤机中，导磁原件──磁轭的电工成份，为保证探伤机充、退磁，必须对磁轭进行热处理及时效处理，使导磁率增加，同时详细介绍了磁轭热处理工艺的编排，及加工过程。
In this paper, we introduce the electrical components of magnetic yoke in the magnetic particle inspection machine. In order to ensure the filling and demagnetization of the testing machine, the yoke must be heat-treated and aging treated to increase the magnetic permeability. Meanwhile, the yoke heat treatment Process layout, and process.