螺旋焊管成型縫“桃形尖”缺欠的控制
Control of "Spade" Defect of Shaping Weld Seam of Spiral Weld Pipe
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摘要: 螺旋焊管成型縫的"桃形尖",不僅嚴(yán)重影響成型縫的焊接質(zhì)量,而且影響鋼管的外觀質(zhì)量,是螺旋焊管生產(chǎn)過程中出現(xiàn)的一種制造缺欠,一直是各制管廠必須解決和防范的難題。分析了螺旋焊管生產(chǎn)過程中成型縫"桃形尖"缺欠產(chǎn)生的原因,提出了切實(shí)可行的控制措施,對改善螺旋焊管成型縫質(zhì)量和指導(dǎo)實(shí)際生產(chǎn)具有較好的作用。Abstract: As a defect occurring in the manufacturing process, the "spade" defect of shaping weld seam of the spiral weld pipe affects not only the welding quality of the shaping seam, but also the apparent quality of the pipe. Such defect has been a hard problem for the pipe manufacturers to solve and prevent. The elements as res- ponsible for occurrence of the said "spade" defect are analyzed, and accordingly control measures are proposed in order to improve the shaping weld seam quality of the spiral weld pipe, and guide the actual operation more effectively.
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