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锡膏分为几种
更新时间: 2020-10-09 00:00:00  

锡膏分为有铅或无铅。

焊锡膏也叫锡膏。焊锡膏是伴随着SMT应运而生的一种新型焊接材料,是由焊锡粉、助焊剂以及其它的表面活性剂、触变剂等加以混合,形成的膏状混合物。主要用于SMT行业PCB表面电阻、电容、IC等电子元器件的焊接。焊锡膏是一个复杂的体系,在常温下有一定的粘性,可将电子元器件初粘在既定位置,在焊接温度下,随着溶剂和部分添加剂的挥发,将被焊元器件与印制电路焊盘焊接在一起形成永久连接。

关键词: 分为

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