spiral steel pipe

Application of Long Spiral Rotating Pile with Steel Pipe Combined Support Technology in Foundation Pit Project

长螺旋搅拌桩钢管桩复合支护技术在基坑工程中的应用

The Comparision and Analysis Between Native and Australian Standards for Imperfections Determined by Radiographic Examination in Spiral Submerged Arc-Welded Steel Pipe Piles

中/澳钢管桩埋弧焊螺旋焊缝射线检测验收标准比较

Mechanism design for on-line profile measuring system of spiral weld steel pipe

螺旋缝焊管截面在线测量系统的机构设计

A symposium for appraising the outside spiral pipes and their production process held at Tianjing seamless steel pipe factory

外螺纹管及生产工艺鉴定会在天津市无缝钢管厂召开

Auto-Tracking Device of Outside-Seam of SAW Spiral Steel Pipe

埋弧螺旋焊管外焊缝自动跟踪装置

The research and development of robotized visual tracking system for detection of spiral seam in large diameter steel pipe

机器人化大直径钢管螺旋焊缝检测视觉跟踪系统的研究与开发

The defects will be found in the seam side with ultrasonic inspection but hardly found with X ray inspection as the small diameter spiral pipe production with the split strip steel.

采用纵剪带钢生产小口径螺旋焊管时，超声波检验经常在焊缝的一侧发现缺陷波，而X射线拍片检验却很难发现。