Welded pipe equipment production process is mainly divided into: loading → uncoiling → straightening → leveling → shear butt welding → storage → leveling → rough forming → fine forming → welding → removal of internal and external burrs → grinding → flaw detection → mid-frequency weld annealing → air-cooled → water-cooled → sizing → straightening → sawing → straightening → flattening → hydrostatic test → conveying → marking → oiling → packing → warehousing
High-frequency straight seam welded pipe equipment--This equipment can produce certain specifications of electric welded steel pipe, feed a certain specification of steel strip into the machine, through the forming rollers to make the steel strip curled into a billet, and then use the high-frequency proximity effect and skin effect to make the pipe edges heated to the welding temperature very quickly, and in the extrusion rollers under the extrusion pressure to complete the weld, and then cooled, sized and roughly straightened to become the required specifications of steel. Then it is cooled, sized and roughly straightened to become a steel pipe of required specifications. The company produces roll forming unit, FFX forming unit, row roll forming unit can produce X80 grade, X100 grade, J55 API petroleum casing, oil and gas pipe, etc., in line with API-5L, API-5CT and other standards.
Direct square welded pipe equipment - the equipment adopts a combination of molds, multi-point pre-bending, direct square process, with no dismantling of the spindle, no dismantling of the plaques, rapid roll change, low unit load characteristics, compared with not using a combination of molds to reduce the cost of 60% of the mold rolls and the time to change the rolls. The thickness of the four corners of the produced square and rectangular pipes is uniform and the strength is high. This unit is suitable for small quantities of multi-specification production.
Multi-functional cold-formed steel welded pipe equipment - is the production of cold-formed steel, square and rectangular pipe and round pipe special equipment. It synthesizes the two production processes of straight-seam high-frequency welded pipe unit and direct square welded pipe unit. With the comprehensive characteristics of the two processes, the realization of a multi-purpose machine. This unit can also be used for the production of steel sheet piles used for fixing earthworks in tunnel construction and other foundation construction, and special shaped tubes for air-cooling island condensers used in power plants and steel mills.
Carbon pipe - stainless steel composite pipe equipment - is made of stainless steel and good carbon structural steel and other bimetals, through the mold forming welded into carbon pipe stainless steel composite pipe. This unit adopts advanced "synchronous welding composite" method, "synchronous welding composite" method along the carbon steel pipe welding production line, synchronized with the stainless steel cold strip coated in the carbon steel pipe exterior, after welding, sizing, straightening, sizing, polishing until the finished product. The product has high precision, firm coating, good deep processing performance, both the strength of the steel pipe and stainless steel appearance of beautiful features. The equipment is mainly used for textile machinery, food machinery, decoration, buses, municipal construction railings, etc.
Longitudinal shear equipment - This equipment is used to cut the steel plate in rolls into several steel strips of a certain width and size along the length direction, and wind them into steel strip coils to provide raw material strip coils to meet the requirements for cold-formed welded pipe production line and high-frequency straight-seam welded pipe production line. This unit is divided into fully hydraulic and mechanical type, featuring high efficiency, low consumption and high precision.
