这种新方法需要一种专门的高效率的机械装置。对接坡口焊是一种连接迅速的施焊工艺，它可以有效地保证金属盖板的胀缩。
The welted joint, executed in this way, is a rapid means of jointing and effectively allows for expansion and contraction of the metal covering.
压力容器设备中法兰与筒体、法兰与接管连接处的C类焊缝和封头端部、筒体上马鞍形的D类焊缝是最为不规则的且施焊工艺最为复杂的焊缝。
In pressure vessels, C and D seam which are located at the joint of flange, tube-shape object, jointed tube, and head of pressure vessels separately are the most complex seams.
施焊位置应标注炉管号、焊缝号、焊工号。
The furnace pipe number, welded joint number and weld worker Numbers...
施焊位置应标注炉管号、焊缝号、焊工号。
The furnace pipe number, welded joint number and weld worker Numbers...
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