At present, the typical cold rolling processes which dominates in Chinese steel industry are: converting- refining Ccogging- hot rolling- pickling- cold rolling- annealing- leveling- galvanizing(Tin)-finished product. In the typical cold rolling technological processes, a strip of tailor welding machine is necessary. The forego metal band and afterward metal band must be welded firstly in operation so that the production line can work continuously. Steel rolled stock inline working has to experience several times of s flexural deformation and endures definite running strain. As a result, the requirement of welding quality and performance is very high.

1.Highlights

Imported high power laser machine: adopting laser precise incising technics or high precision cutting machine cutting technics, directly laser welding after incising or cutting, heat and anneal welded joints at the same time
Laser welding speed is 1~12m/min, infinitely variable timing

Laser welding processing Real-Time Monitoring of stability and quality, can identify defects such as no welding and burning through etc

Adopt auto-butt-seam-welding can keep the gap joint of armor plate not up to 0.09mm, the linear misalignment is no more than 10 percentage of slab in the height direction (the slab is 2mm)
Actualizing oblique butt joint, the angle between weld joint and armor plate rolling is benefit of no damage when passing through the roller mill in the cold rolling process

2.Applications

Wuhan Iron&Steel Corp. laser tailored machine is cutting

Wuhan Iron&Steel Corp. laser strip steel machine is welding

Three tailor welded steel plates