英语翻译The drawn arc welding process uses a special tool (from

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英语翻译
The drawn arc welding process uses a special tool (from Germany) that holds the stud and the disposable ceramic ferrule,strikes the arc from the point of the stud,pulls the stud back to form a large weld pool (which is constrained by the disposable ceramic ferrule),then pushes the stud into the weld pool to displace the slag and form the weld.
是压焊,具体请解释下上面的英文描述
别用自动翻译，需要你们的专业解答，

这个焊接应该叫碰焊或柱焊,用于螺柱,焊钉或剪力钉的焊接.
我给你翻译一下
拔弧焊接工艺使用了一种特殊工具（来自德国）来盛装焊钉和一次性使用的陶瓷套坏,从焊钉的某点上引弧后,将焊钉向后拉动以形成一个大的熔池（熔池由陶瓷套坏来维持）.最后将焊钉压入熔池,从而挤出熔渣形成焊缝.

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