A study was made of the welding procedure for X70-L245 butt joint of pipeline steel.
针对不同强度级别的管线钢x 70和L245对接的焊接工艺进行了研究。
The invention also discloses a method for butt joint by using the unit.
本发明还公开了一种采用该装置进行对接的方法。
Stress corrosion in flash welding butt joint of steel bar HRB400 is studied.
针对HRB400钢筋闪光对焊接头的应力腐蚀过程进行研究。
Stress corrosion in flash welding butt joint of steel bar HRB400 is studied.
针对HRB400钢筋闪光对焊接头的应力腐蚀过程进行研究。
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