焊接检测的文章,请大家帮忙翻译下大概意思~? Longitudinal seams in adjoining lengths of welded pipe shall be staggered and shall be located to clear openings and external attachments. Clearance and stagger shall not be less than 1 inch (25 mm). Longitudinal seam welds shall be located in the top quadrant of the pipe when practicable. For testing and venting, each segment of all reinforcing pads for pressure openings shall be provided with two holes drilled and tapped for nominal pipe size (NPS) 1/8 inch (3 mm). These holes shall be located 180 degrees apart on one-piece pads. Each pad should be proportioned so the diameter of the test hole is not greater than one-third of the pad width. All segments of reinforcing pads for structural attachments shall be provided with one untapped 1/4 inch (6 mm) hole for venting. 查看更多5个回答 . 1人已关注