紫铜焊接加工特性和常见紫铜焊接加工工艺有哪些

2025-03-15 16:07:30
推荐回答(1个)
回答1:

1.紫铜的手艺电弧焊手艺电弧焊时选用紫铜焊条铜107焊芯为紫铜(T2T3焊前应整理焊接处边缘。焊件厚度大于4毫米时,焊前有必要预热,预热温度通常在400~500℃摆布。用铜107焊条焊接,电源应选用直流反接。焊接时应当用短弧,焊条不宜作横向摇摆。
2.紫铜的气焊焊接紫铜最常用的对接接头,焊接紫铜(即通常所称的工业纯铜)办法有气焊、手艺碳弧焊、手艺电弧焊和手艺氩弧焊等办法。搭接接头和丁字接头尽量少选用。气焊可选用两种焊丝,一种是富含脱氧元素的焊丝,如丝201202另一种是通常的紫铜丝和母材的切条,选用气剂301作助熔剂。气焊紫铜时应选用中性焰。
焊条作往复的直线运动,可以改进焊缝的成形。长焊缝应选用逐渐退焊法。焊接速度应尽量快些。多层焊时,必需彻底铲除层间的熔渣。焊接应在通风杰出的场所进行,以避免铜中毒表象。焊后使用平头锤敲击焊缝,消除应力和改进焊缝质量。
3.紫铜的手艺氩弧焊紫铜手艺氩弧焊时,选用的焊丝有丝201特制紫铜焊和丝202也选用紫铜丝,如T2焊前应对工件焊接边缘和焊丝外表的氧化膜、油等脏物都必需整理洁净,避免发作气孔、夹渣等缺陷。

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