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2024-05-21 08:28:56    评论:0 点击:
The requirements for burrs and excess height of welded steel pipe welds are as follows: After removing the burrs inside the straight seam welded steel pipe weld, the remaining height should not exceed 1.5mm; When the wall thickness is not greater than 4mm, the depth of the groove after removing the internal burrs should not exceed 0.2mm; When the wall thickness is greater than 4mm, the scraping depth should not exceed 0.4mm.

焊接钢管焊缝的毛刺和余高要求如下:直缝焊接钢管焊缝内毛刺清除后,剩余高度应不大于1.5mm;当壁厚不大于4mm时,清除内毛刺后刮槽深度应不大于0.2mm;当壁厚大于4mm时,刮槽深度应不大于0.4mm。螺旋缝埋弧焊钢管的焊缝余高为,当壁厚不大于12.5mm时,超过钢管原始表面轮廓的内、外焊缝余高应不大于3.2mm;当壁厚大于12.5mm时,超过钢管原始表面轮廓的内、外焊缝余高应不大于3.5mm;焊缝余高超高部分允许修磨。对直缝焊接钢管,焊缝处钢带边缘的径向错边不允许使两侧的剩余厚度小于钢管壁厚的百分之九十。

IMG_20240311_081444.jpg

对螺旋缝埋弧焊钢管,当壁厚不大于12.5mm时,焊缝处钢带边缘的径向错边应不大于1.6mm;当壁厚大于12.5mm时,焊缝处钢带边缘的径向错边应不大于钢管壁厚的0.125倍。螺旋缝埋弧焊钢管允许有钢带对接焊缝,但钢带对接焊缝与螺旋缝的连接点距管端的距离应大于150mm,当钢带对接焊缝位于管端时,与相应螺旋缝埋弧焊钢管管端的螺旋焊缝之间至少应有150mm的环向间隔。

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