Demand restoration of spiral steel pipe weld defects

Sources: this site    Click:    Date: 2016-3-31 23:18:19
Spiral steel pipe weld repair needs disadvantages as follows:
1.The minimum length of welding seam of 50 mm. If the direction of the steel base material disadvantage on the promise, welding seam should circumferential direction.
2.Welding seam should be grinding to make it look original steel pipe steep transition. Welding height after grinding the base material shall not exceed 1.5mm.
3.Eradicate shortcomings should be clean before the repair. Welding department to fully defragment make it fit the welding requirements.