Spiral Pipe is a strip coil for raw materials, often warm extrusion, with automatic double-wire submerged arc welding process double-sided spiral welded steel pipe 1) raw materials that strip, wire, flux. Go through rigorous physical and chemical testing before it is put. (2) strip head and tail docking, a single wire or twin-wire submerged arc welding, in the rolled steel by automatic submerged arc welding. (3) before forming the strip after flattening, cutting, trimming, planing, surface transport and to clean up the crimping process. (4) The electrical contacts on both sides of pressure control conveyor cylinder pressure to ensure the smooth delivery of the strip. (5) The external control or internal control roller shape. (6) The weld gap control device to ensure that the weld gap to meet the welding requirements, diameter, misalignment and weld gap have been strictly controlled. (7) welding and outside welding Lincoln welding machine for single or double wire submerged arc welding, thereby obtaining a stable welding quality. (8) finished welding the weld line ultrasonic injury examination was to ensure 100% coverage of non-destructive testing spiral weld. If defects, automatic alarm and spraying tags, production workers and so at any time adjusting the process parameters, and remove defects. (9) air plasma cutting machine to cut a single tube. (10) cut into a single pipe, each batch of steel pipe should be carried out strict inspection system, the mechanical properties of the weld inspection, chemical composition, fusion status, quality steel surface and after NDT inspection, to ensure that the pipe process qualified before we can formally put into production. (11) with a continuous ultrasonic inspection mark the site of the weld, manual ultrasonic and X-ray review, if there are defects after repair again after destructive testing, until the confirmation defects have been eliminated. (12) strip butt weld, and intersect with spiral weld small joint where the pipe all through the X-ray television or film examination. (13) each pipe after hydrostatic test pressure radial seal. Test pressure and time by a steel pipe pressure microcomputer detection device is strictly controlled. Test parameters are automatically printed record. Commonly used spiral steel pipe standards are generally divided into: SY / T5037-2008 (Ministry of standard, also known as general fluid pipes with spiral submerged arc welded pipe), GB / T9711.1-2008 (GB, also known as the oil and gas industries - Steel pipe Technical delivery conditions - Part: A grade steel (demanding a GB / T9711.2 B grade steel)), API-5L (American Petroleum Institute, also known as line pipe; which is divided into two levels PSL1 and PSL2). SY / T5040-2008 (pile with spiral welded steel pipe). Material: Q235A, Q235B, 10 #, 20 #, Q345 (16Mn), (14) pipe end machining, so that the end vertical slope altercation and accurate control of the blunt edge. Shunde Langze Steel Co., Ltd., located in Foshan City, Guangdong Province Shunde District, Sea World steel market, convenient transportation. The company can accept special custom specifications of the pipe, Rectangular Pipe and other profiles. Company Sales: Rectangular Pipe, H-beam, channel, angle iron, spiral steel pipe, run a variety of plates, profiles, seamless pipe, longitudinally welded pipes, tubes, etc ... business class area in Guangdong and neighboring provinces. The company has a number of advanced spiral pipe production line (the manufacturer). Production caliber 219mm-2420mm (thickness 5mm-20mm) double-sided spiral submerged arc welded steel pipe, the annual production capacity of 100,000 tons and above, spiral products are widely used in municipal projects, water pipes, sewage, heating pipe network, gas pipe network, colliery mine, ventilation pipes, construction, steel structures, bridges, piling, pier and other fields. Companies with a pipe coating plant, a professional inside and outside wall of the steel pipe corrosion process, there are three main oil pipe outer wall of the two cloth, five - three cloth, coal tar epoxy paint, polymer coatings. Drinking water pipe wall using non-toxic paint IPN8710-2B, cement and various epoxy coatings. Since its inception, it has been to the superior quality, excellent service and product that is character, integrity is life, customer satisfaction is our eternal chase