天气预报 > 其他 > 带磁性的金属如何消磁
带磁性的金属如何消磁
更新时间: 2020-10-26 00:00:00  

加热、击打、使用消磁线圈,外焰加热表面后放入泠卻液中或直接找個振动线圈放在上面長较长時间也可以;

消磁的方法通常是将其放入一个交变的磁场中,用来回交变的磁场将其固定的磁场打乱、消弱,达到消磁的目的,当磁化后的材料,受到了外来的能量的影响;

消磁器是用幅度逐渐减小的交流电通过线圈,形成一个方向不断变化而强度逐渐降低的交变磁场,使带磁物体里的磁筹,不断改变方向并降低磁场强度,最后消除磁性,消磁器的初始磁场强度必须大于磁化该物体的磁场强度,才能彻底消磁。

关键词: 磁性 金属 如何

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