真空镀膜偏压选取

2025-03-15 21:30:48
推荐回答(2个)
回答1:

应该这样理解,偏压高低决定的是轰击离子的能量大小,而占空比大小则决定轰击离子的数量,两者搭配使用并没有一个固定的公式,如果非要定性两者关系的话,我觉得用“两者相乘等于轰击效果”来形容会比较恰当些。换句话说,只要在膜层结合力要求的范围内,很多种参数包括高偏压低占空比或者低偏压高占空比,都是可以的。
我在五金手机壳镀膜时,试过多种参数,在膜层不厚的时候,都看不出差异来,试过用30的占空比有出现过掉膜,最后是选了个比较折中位置的参数,大概是100伏偏压,60的占空比。

回答2:

占空比是指电压的高电平和低电平输出占有比例,无论你调高还是调低其电压的峰值是不改变的,只是相对占有周期比例变长而已,
关于镀膜的占空比调节,这要看镀什么膜层,达到什么清洗效果!还要看偏压电源是什么属性的?
你这样很难具体讨论!

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