提高软磁合金材料磁性和热处理后尺寸精度的方法

来源期刊：有色金属2011年第1期

论文作者：孙军艳 汤健明

文章页码：43 - 46

关键词：磁性材料； 软磁合金； 磁性热处理； 尺寸精度； 方法研究

Key words：magnetic material； soft magnetic alloy； magnetic heat treatment； dimension accuracy； research on method

摘    要：分析和研究热应力对软磁合金磁性热处理后的尺寸精度影响和机加应力对磁性能的影响,提出综合改善软磁合金热处理后磁性能和尺寸精度的方法。先对材料半精加工,单边留一定的加工余量,再进行磁性热处理,磁性能要求满足后对材料精加工,并留一定的公差余量,最后进行磁性恢复处理,满足磁性能要求后复测零件的最终尺寸。采用该方法可显著提高软磁合金材料零件加工的合格率。

Abstract: The effect of heat stress on dimension accuracy after heat treatment and the effect of machining stress on magnetism are theoretically analyzed and investigated,and a method of improving magnetism property and dimension accuracy after heat treatment is developed.Firstly,the machining is half-finished and some allowance in one machining side is left,then magnetism heat treatment is conducted,the machining is completed after magnetism satisfaction and leave some tolerance allowance,magnetism heat-treat is resumed,the finally dimension is measured after magnetism satisfaction.The soft magnetic alloy material eligible rate can be markedly improved by use of this method.