Curved Planar Seam Welding TRIZ Cases
- Flexible Impeder Sheet for Inner Circumferential Current Suppression
Ferromagnetic sheets wound around the mandrel suppress inner circumferential current, improving ERW pipe welding efficiency without mandrel redesign.
- ERW Steel Pipe Heat Treatment for Weld Toughness Retention
Multi-stage induction heating and cooling refines bainitic weld microstructure in thick ERW steel pipe to retain toughness through the wall.
- Longitudinal Rib Welding Roller Alignment for Finned Tubes
Adjustable rollers, ball joints, and die positioning correct rib-to-pipe misalignment and wear in simultaneous finned tube welding.
- ERW Steel Pipe Heat Treatment for Bainitic Weld Toughness
Staged outer-surface heating, cooling, and reheating refines bainitic weld microstructure in thick ERW steel pipe while limiting brittle fracture.
- Can Body Seam Welding Control for Consistent Overlap
Closed-loop seam monitoring adjusts the calibration unit across multiple axes to keep can body overlap and weld thickness consistent.