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The main process of seamless steel pipe

Views: 3     Author: Site Editor     Publish Time: 2020-07-30      Origin: Site

    Compared with solid steel such as round steel, steel pipe is generally lighter when the bending and torsion strength is the same. It is a kind of economical cross-section steel, which is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, Bicycle racks and steel scaffolding used in construction. The use of steel pipes to manufacture ring-shaped parts can improve material utilization, simplify manufacturing procedures, and save materials and processing man-hours, such as rolling bearing rings and jack sleeves.

    Steel pipes are also an indispensable material for various conventional weapons and military machinery. Gun barrels and barrels are all made of steel pipes. Steel pipes can be divided into round pipes and special-shaped pipes according to different cross-sectional area shapes. Due to the condition of equal circumference, more fluid can be transported with a round tube. When the ring section bears internal or external radial pressure, the force is relatively uniform, and most steel pipes are round pipes.

1. Process flow of sanitary mirror tube:

Tube blank-inspection-peeling-inspection-heating-perforation-pickling-grinding-lubrication and air drying-welding head-cold drawing-solution treatment-pickling-pickling Passivation-Inspection-Cold Rolling-Degreasing-Cutting Head-Air Drying-Internal Polishing-External Polishing-Inspection-Marking-Finished Product Packaging

2. Industrial pipe process

Tube blank - inspection - peeling - inspection - heating - perforation - pickling - grinding - lubricating and air drying - welding head - cold drawing - solution treatment - pickling - pickling Passivation-inspection

3. Process flow of welded pipe

Uncoiling-leveling-end shearing and welding-looper-forming-welding-internal and external weld bead removal-pre-correction-induction heat treatment-sizing and straightening-eddy current testing-cutting --Water pressure inspection--Pickling--Final inspection--Packaging

4. Seamless square tube process

Round steel-tube billet-inspection-heating-piercing-sizing-hot rolling-flat head-inspection-pickling-spherical annealing-cold drawing-forming-test.

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