框式退磁机一定要离开框口1.5m吗

2020-06-08 11:52:10 admin

不一定的，远离法退磁时，只要工件脱离退磁线圈的磁场感应范围，就可以达到退磁目的。

离开1.5m只是为确保退磁效果，给出的理论安全数值。

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框式退磁机一定要离开框口1.5m吗

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