机械零件在磨削过程中,经常受到电磁吸盘的磁力作用,机件总留有一定的剩磁,这种剩磁对产品质量往往是有害的。目前采用的退磁方法有直流法、交流法和交轴磁场退磁器三种,这三种方法均因手续麻烦,成本高,退磁效果差及退破器加工工艺复杂等原因,在使用和推广上受到一定的限制。本 Mechanical parts in the grinding process, often by the electromagnetic force of the magnetic chuck, mechanical parts always leave some residual magnetism, the residual magnetism is often harmful to product quality. Currently used demagnetization method DC method, AC method and cross-axis magnetic demagnetization three, these three methods are due to the formalities troublesome, high cost, demagnetization poor and the processing device is broken and other reasons, the use and promotion Subject to certain restrictions. this