大规格端子冷压的O形较多,可端子螺钉退不出的,只能选U形。
大规格鲨鱼齿端子,各位有用过不? 关于锡焊连接,有UL标准是这样说的:
A soldered joint shall be made mechanically secure before being soldered.
Exception: A soldered joint need not be made mechanically secure before soldering provided that both
sides of the joint are secured in such a manner that there is no strain on the connection either during
manufacturing process or thereafter. 楼上说的和楼主说的不是同一个问题。楼主的问题是用于螺纹端子连接的电线能否进行预锡焊。而楼上引用的UL条款是讲焊接之前需要机械固定,如把电线焊在线路板上,必须用钩焊,而不能直接焊在线路板表面。
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