接"含义及其与"连接"的区别是什么?熔化焊,固相焊⼀固态焊和钎焊各是什么含义

2025-03-15 02:06:30
推荐回答(1个)
回答1:

焊接按照连接的机理不同大致可分为熔化焊、钎焊和固相焊接。
熔化焊即母材焊缝附近区域熔化,填充材料也熔化。根据焊接热源特点不同可分为电弧焊、氩弧焊、等离子束焊、激光焊、电子束焊、自蔓延焊接等等。熔化焊母材局部加热,温度高,热影响区大,焊后变形大、残余应力大。熔化焊可使待焊母材达到充分的冶金结合,连接强度高。熔化焊适于连接同基体的两种母材,如果两种材料间易生成化合物不适易使用熔化焊。
钎焊即母材不熔化,填充材料熔化,依靠填充材料对母材的润湿力(表面张力)去填充钎焊间隙,并与母材发生反应而获得冶金结合的焊接接头。根据焊接热源不同可分为火焰钎焊、高频钎焊、烙铁钎焊、波峰焊等等。钎焊加热温度低,即使采用局部加热的手段,热影响区、焊后变形、残余应力都较小。钎焊依靠钎料与母材间的物理化学做用形成冶金结合,两种母材不直接反应,因此易于焊接异种材料。
固相焊接是母材不熔化,可用也可不用填充材料,且填充材料一般也不熔化(瞬时液相扩散连接除外)。可分为扩散焊、搅拌摩擦焊等等。

这个题目太大了,回答不了了,就这样吧。

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