The production process of square tube

The production process of square tube is as follows: feeding → uncoiling → straight end → clamping and leveling → shear welding → looping → forming, high-frequency extrusion welding, removing external burrs, weld polishing, water cooling, sizing, rough straightening → milling, sawing and sizing → chain drive cutting device, manual packaging → marking → inspection and collection → warehousing. The main equipment includes a single cone hydraulic expansion and contraction uncoiler, a straight head clamping and leveling machine, a shear welding machine, a floor type spiral loop, a forming unit, a welding device, a sizing unit, a CNC copying milling and cutting saw, etc.