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Spiral tube forming step

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Spiral tube forming step

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Spiral tube forming step.

Spiral pipe is what then? Now I tell you about the spiral tube forming step. (1) raw material strip roll, wire, flux. Must go through a rigorous physical and chemical testing before investing.

(2) strip head and tail docking, single-wire or double wire submerged arc welding, automatic submerged arc welding and rolled into a steel pipe.

(3) forming the strip after the leveler, cutting edge, planing, surface cleaning conveyor and I crimping.

(4) the use of electric contact pressure gauge to control both sides of the conveyor pressure cylinder pressure to ensure the smooth delivery of the strip.

(5) using roll forming outside the control or internal control.

(6) spiral pipe spiral pipe tube

weld gap control device to ensure that the welds the gap meet the welding requirements, the the diameter wrong side and weld gap have been strictly controlled.

(7) within of welding and outside welding are used by the U.S. Lincoln welding machine for single-wire or double wire submerged arc welding, stable welding specifications.

(8) finished welding the weld through online continuous ultrasonic auto-injury instrument check to ensure that the coverage of non-destructive testing of 100% of the spiral weld. If defective, automatic alarm and spraying tag, production workers and so adjusting the process parameters at any time, to eliminate defects in a timely manner.

(9) by air plasma cutting machine to cut the pipe into a single root.

(10) cut into a single steel pipe, each batch of steel pipe should be carried out strict inspection system, the check weld mechanical properties, chemical composition, fused condition, steel pipe surface quality as well as after NDT inspection to ensure that the pipe making process qualified After the order was put into production.

Weld (11) marked the site of continuous sonic flaw detection, the manual ultrasonic and X-ray review such as defective after repaired again after the non-destructive testing, until the confirmation of the defect has been eliminated.

(12) strip butt weld, and intersect the D-type connector with spiral weld where the tube, all through the X-ray television or film examination.

(13) each pipe after hydrostatic test pressure radial seal. The test pressure and time by the steel pipe pressure microcomputer detection device strictly controlled. The test parameters are automatically printed record.

(14) pipe end machining, so accurate control of the verticality of the end face, bevel and blunt edge.

More questions, please consult our professionals to carry out a more detailed understanding of spiral aspects.

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