We mainly produce 600×600×20 Forming Sizing Mill Units which are made of roller forming principle and the high frequency welding, we can continuously produce large size steel pipe.600×600×20 product fills the domestic gap, creates the domestic large size of cold bending square rectangle tube production. The unit was made of forming, welding guide, Five roller extrusion, double-station weld scraper, grinding roller, sizing, transmission and cooling.
1. Large and small edge molding, using online electric adjustment, when changing product specifications, roller on the horizontal axis axial movement, do not need to replace the roller.
2 “directly into the square” process adopts the world's most advanced multi-point preflex composite molding process. Composite roll, forming period of roll designed according to principle: the arc length turn to be radius. A set of roll can produce square tube 100×100∽600×600, rectangular tube100∽600, the thickness of 6 to 20 mm which all products within the scope can share, it can be cut down the cost of roller and roller change time
3 forming section adopts down forming method, which can effectively reduce the tensile deformation of edge, benefit for the production of the thin-wall tube, ensure the quality of the product.
4 units in the design of tunnel increased 2 independent rollers in the bottom, which can reduce the scratch and roller abrasion, fast and quick and easy to adjust.