利用电磁无心夹具对工件退磁的电路设计  

Circuit Design of Demagnetising Workpieces with Electromagnetical Centreless Fixture

作　　者：王红军[1] 王新民[2] 

机构地区：[1]洛阳工学院,471039 [2]洛阳轴承研究所,471039

出　　处：《轴承》1997年第12期11-14,共4页Bearing

摘　　要：套圈磨削结束后，将电磁无心夹具的励磁电源关断，换接一组方向交替变换、幅值逐渐递减至零的脉冲电源，给电磁无心夹具供电，电磁线圈中出现方向交替变换、幅值逐渐递减至零的电流。此时电磁无心夹具产生极性变化，强度逐渐递减至零的磁场，从而使套圈退磁。附图4幅，参考文献2篇。Close up exciting power of the electromagnetical centreless fixture af-ter grinding bearing ring,then connect pulse power with altemately variable direchon and amplitude decreasing progrssively to zero to the electromagnetical centreless fixture to sup-ply electricity and a current with alternately variable direchon and ampitude decreaaing pto-gressively to zero appears in the electromagnehcal coil. At that time,in electromagnetical cen-treless fixture,polar change has taken place and field density is decreaaing progressively to ze-ro, thus it makes bearing ring demagnetise.

关 键 词：轴承 套圈 电磁无心夹具 退磁电路 电路设计 

分 类 号：TH133.3[机械工程—机械制造及自动化] TG758[金属学及工艺—刀具与模具]