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fr-4是什么材质
更新时间: 2020-12-07 15:27:58  

是一种耐燃的复合纤维材质的代号。fr-4是耐燃材料的一个代号,并非是指一种具体的耐燃材料,是等级的一种。意思是某种材料经过燃烧,在不借助外力的情况下,必须能够自己熄灭,不能持续燃烧。由于fr-4具有的阻燃特性,即使有火的存在,fr-4也能在无声无息下自己熄灭火苗,因此fr-4常用来制作在需要隔热阻燃的场合,比如高温工作下电气设备、绝缘板、环氧玻璃布板、变压器绝缘板等工业产品。

关键词: fr 什么 材质

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