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漆包线的针孔试验多少为合格
更新时间: 2020-06-30 00:00:00  

1、按照GB6109、488第6、2条的规定:标称直径0.063毫米以上规格的漆包线,取长约6米的成卷试样。标称直径0.063毫米及以下规定的漆包线,取长约1、5米的试样,浸入百分之三酚酞酒精加百分之零点二食盐溶液中,以溶液为正极,以试料为负极施加DC12伏特或24伏特直流电一分钟,然后数针孔即可,有针孔的地方会有气泡冒出并且附近呈红色,针孔数在8PCS以下即为合格;

2、盐水的配制方法:在量杯内倒入适量的酒精,按3百分之三的比例加入酚酞并充分搅拌使之溶解作为指示剂,然后适量滴入浓度为百

关键词: 漆包线 针孔 试验 多少 合格

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