SW Kelly bar
SW800(Y.S.800+MPa)
Shot Blasting before welding
Automatic welding
Automatic welding of Straight weld-LlNE !
Automatic welding of Straight weld LlNE ll
Robot welding of pipes' butt-joint
Shot Blasting after welding for stress relief
Shot Blasting after welding for stress relief
Special hot treatment enhance pipeis
yield strength more than 800MPa
Robot cutting of locking plates, terminal joints, etc.
Robot welding of terminal joint
Robot cuttind of locking plates,
terminal joints, etc.
Hardness testing after welding
Ultrasonic iraging detection on weld
Testing material strength
Testing the impact energy of
the material at -40℃
R&D departient
FEA analysis
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