钢制凸形封头拼接焊接接头的焊接工艺评定

Welding Procedure Qualification for Butt Joint of The Steel Crowning Head

本文按照凸形封头的成形加工工艺、封头材料种类,封头拼接焊接接头的焊接方法和焊后热处理类别,分别叙述封头拼接焊接接头的焊接工艺评定所需项目。

This paper specifies the items of welding procedure qualification for butt joint of spliced head, according to the manufacturing technics, the species of head material, the welding methods of butt joint and the sorts of post weld heat treatment for crowning head.