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电烙铁加热要多久
更新时间: 2020-07-14 00:00:00  

电烙铁加热要五分钟左右。电烙铁是用来焊接电器元件的,为方便使用,通常用焊锡丝作为焊剂,焊锡丝内一般都含有助焊的松香。焊锡丝使用约60%的锡和40%的铅合成,熔点较低。松香是辅助材料,是能够使软化的铅液成滴点形,使它更容易凝聚成球,表面形成油膜,更好聚集在焊点上。

关键词: 电烙铁 加热 多久

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