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如何鉴别锡丝锡条的好坏

更新时间: 2020-09-16 00:00:00     

1、 目视查看,好的锡丝应光滑,有光泽,无氧化现象,发黑现象。 焊锡丝的质量一般是细一些的色彩发亮的较好,太粗的焊锡丝则含铅量较高,并且相对不太简略消融;

2、 好的焊锡丝发白发亮,用手擦洗不简略涂到手上,而含铅量高的锡丝则发黑,用手擦洗简略黑手。锡丝的硬度不高,延展性很好,所以越柔软标明纯度越好。

关键词: 如何 鉴别 锡条 好坏

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