High-frequency welded steel pipe: After the hot rolled coil is formed by the molding machine, the skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the tube blank, and the pressure welding is carried out under the action of the extrusion roll to realize the production of the product. High-frequency welded steel pipe has the characteristics of a relatively simple process and rapid continuous production, and has been widely used in civil construction, petrochemical, light industry, and other sectors. It is used for conveying low-pressure fluid or making various engineering components and light industrial products.

The production process of high-frequency welded steel pipe mainly depends on the product variety. From raw materials to finished products, a series of processes are required. To complete these processes, a variety of mechanical equipment and welding, electrical control, and testing devices are required.

High-frequency welded steel pipe: The welding process of high-frequency resistance welded steel pipe is different from that of ordinary welded pipe. The weld is made of the base metal of the steel strip body, and the mechanical strength is better than that of ordinary welding. A High-frequency welded steel pipe is a hot rolled coil forming machine, the use of high-frequency current skin effect and proximity effect, so that the edge of the tube billet heats and melts, under the action of the extrusion roll pressure welding to achieve production.

High-frequency welded steel pipe: smooth appearance, high precision, low cost, and small weld residual height, favorable for 3PE anti-corrosion coating. The welding methods of HF welded steel pipe and submerged arc welded pipe are significantly different. Because the welding is completed instantaneously at high speed, the difficulty of ensuring the welding quality is much higher than that of submerged arc welding, and the quality of high-frequency welded steel pipe is reliable and durable.

Cangzhou Shenlong Pipe Manufacturing Co., Ltd. cooperates with Baosteel and Baogang to produce large-caliber seamless steel pipe, straight-seam welded pipe, spiral steel pipe, and pipe fittings. The products comply with API, ASTM, DIN, BS, and JIS standards, and can accept SGS, BV, and other inspections. The products are used in oil, natural gas, bridge, water conservancy, and other large-scale projects, which are worthy of trust.