... welded and expansion joint烧焊加胀接法 welded and rolled tube joint焊胀 welded armor烧焊船面 ...
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根据FWEC管式空气预热器技术规范对管子—管板胀接的要求，对有缝电阻焊管胀接进行工艺试验。
In this paper, to meet the expending requirements of technical specification for FWEC Tubular Air Heaters, the expending procedure test for the ERW tube was performed.
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.
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