Directly forming square tube unit
Only one set of rolls can continuously produce square and rectangular steel pipes within certain range. It adopts the international advanced multi-radius combined forming process and high-frequency welding, and is formed by multiple symmetrical bending. Specifically, it can be divided into small-side bending, side-side bending, closed free bending, high-frequency welding, finishing and straightening, and sawing to produce pipes with accurate dimensions and excellent quality.
Features
① Adopting advanced multi-point pre-bending combined forming process, and the rolls are shared. One set of rolls can solve the forming problems of all square and rectangular tubes within a certain range, which can save a lot of roll costs and roll changing time./
② Electric and hydraulic are adopted, and the rollers can be changed quickly
③ Computer-controlled automatic mode is adopted for changing production specifications. The deformation parts are the four corners of the square tube, no unnecessary deformation process, reducing energy consumption and equipment load
The main parameters | |
Material | The raw material is hot-rolled and cold-rolled strip steel slitting coils |
Product type | Square tube and rectangular tube |
Square tube | 50 x 50 – 600 x 600 mm |
Rectangular tube | 50 x 70 –400 x 600 mm |
Pipe wall thickness range | 1.5 mm – 22.0 mm |
Tube length | 6.0 m - 24.0 m |
Production speed | 8- 45 m/min |
Welding method | High frequency welding, solid state 400- 1200kW |
Molding method | Directly forming square tube |