Spiral Pipe Production Process
Spiral pipe production process
Spiral pipe production process
www.netgms.com Update Date :2012-6-19 11:04:20 Click: 47
(1) raw material strip volume, wire, flux. The input to go through rigorous physical and chemical testing.
(2) strip head and tail docking, using a single wire or twin-wire submerged arc welding and automatic submerged arc welding rolled into the steel pipe.
(3) before forming the strip after flattening, cutting, trimming, edge planing, transportation and to the curved side surface cleaning.
(4) electric contact pressure gauge to control the conveyor on both sides of pressing the fuel tank pressure to ensure the smooth delivery of the strip.
(5) external locus of control or internal control roll forming.
(6) of the weld gap control device to meet the welding requirements to ensure that the weld gap, diameter, misalignment and weld gap have been strictly controlled.
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(7), welding and outside welding Lincoln welding machine, a single wire or twin-wire submerged arc welding, so as to obtain a stable welding specifications.
(8) finished welding the weld line continuous ultrasonic injury examination was to ensure 100% of the spiral weld non-destructive testing coverage. If defective, automatic alarm and spray the tag, production workers and so adjusting the process parameters at any time, to eliminate defects in a timely manner.
(9) air plasma cutting machine to cut the pipes into a single root.
(10) cut a single steel pipe, each batch of steel pipe the first three to be strict censorship, check the weld mechanical properties, chemical composition, fusion status and the surface quality and NDT Inspection, to ensure that the process pipe after passing the order to put into production.
Weld (11) marked the site of continuous acoustic flaw detection, manual ultrasonic and X-ray review, if there are defects after repair again after destructive testing, until the confirmation of the defect has been eliminated.
www.vaedro.com(12) strip butt weld, and intersect with spiral weld small joint where the pipe all through the X-ray television or film examination.
(13) steel pipe hydrostatic test pressure radial seal. Test pressure and time by a steel pipe pressure microcomputer detection device is strictly controlled. The test parameters are automatically printed records.
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(14) pipe end machining, so that the end vertical slope altercation and accurate control of the blunt edge.
by: steelpipes
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