小管徑螺旋埋弧焊管應(yīng)力裂紋分析及防止措施初探
Analysis of Stress Cracking of Small-sized Spiral Submerged-arc Weld Pipe and Relevant Preventive Actions
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摘要: 介紹了小管徑螺旋埋弧焊管的裂紋性質(zhì)、成因及生產(chǎn)過(guò)程中可以采取的防止措施。最根本的措施就是改善鋼管成型質(zhì)量,減小鋼管彈復(fù)量,確定并固定內(nèi)焊焊點(diǎn)。Abstract: Discussed in the paper are the main aspects concerning stress cracking of the small-sized spiral submerged-arc weld pipe, covering nature of the cracking, causes and possible preventive actions to taken during operation, particularly actions like improving pipe formation quality, reduction of pipe elastic recovery amount and selecting/fixing interior welding points.
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