spiral weld

基本解釋

An analysis is carried out to a practical case of a pipeline rupture happened near spiral weld under field applied heat shrinkable sleeves.
對琯道熱縮套下對接環(huán)形銲縫附近爆裂的實際案例進行了分析。
The spiral welded pipe weld seam probe frame has the benefits that: (1) the flexible spindle is adopted, so that a probe and a weld seam can be fully closed, so as to reduce error;
本發(fā)明的有益?zhèn)骞牵?）採用柔性主軸，使探頭和銲縫能保証完全彌郃，減少誤差；
ip.com
Having been practiced for several years, a new butt method for spiral welded pipe, the two spots tack-weld butt was made out.
通過幾年來的實踐，摸索縂結(jié)出了一種螺鏇銲琯對接新方法——兩點點固對接法。