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Straight seam steel pipe
Classification:
Steel Pipe Series
Key words:
Hengjia Pipeline
Valve
Product Details
Straight seam steel pipe is a steel pipe whose weld is parallel to the longitudinal direction of the steel pipe, mainly including submerged arc welded straight seam steel pipe and high frequency welded steel pipe. Customizable.
The welding process used for submerged arc welding straight seam steel pipe is submerged arc welding technology, using filler welding, particle protection flux submerged arc. The diameter of the production can reach 2000mm,LSAW is the English abbreviation of submerged arc welded straight seam steel pipe. The production process of submerged arc welded straight seam steel pipe includes JCOE forming technology and roll forming submerged arc welding technology. When the diameter is large, it is possible to roll two steel plates, which will form a double weld. The standard GB/T3091-2008 low-pressure fluid steel pipe production standard, GB/T9711.1-2 -1997 oil and gas steel pipe production standard, and the implementation standard of API 5L pipeline steel pipe in the United States can also be implemented. Production material: q235B, Q345(16Mn), L245(B), L290(X42), L320(X46), L360(X52), L390(X56), L415(X60), L450(X65), L485(X70), L555(X80), L290NB/MB(X42N/M), L360NB/MB(X52N/M), L90NB)/MB(X60N/M), L450MB(X65), L485MB(X70), L555MB(X80).
High-frequency welding is based on the principle of electromagnetic induction and the skin effect, proximity effect and eddy current thermal effect of AC charge in the conductor, so that the steel at the edge of the weld is locally heated to a molten state, and the butt weld is extruded by the roller to achieve inter-crystal joint, so as to achieve the purpose of weld welding. High frequency welding is a kind of induction welding (or pressure contact welding), it does not need weld filler, no welding spatter, welding heat affected zone is narrow, welding forming beautiful, welding mechanical performance is good and so on. High-frequency welded steel pipe is the use of alternating current skin effect and proximity effect, steel (strip steel) after rolling forming, to form a cross-section of the broken round tube blank, in the tube blank near the center of the induction coil near the rotation of one or a group of impedance (magnetic bar), impedance and tube blank opening to form an electromagnetic induction circuit, under the skin effect and proximity effect, A strong and concentrated thermal effect is generated at the edge of the opening of the tube blank, so that the edge of the weld is rapidly heated to the temperature required for welding. After being squeezed by the pressure roller, the molten metal realizes inter-crystalline bonding and forms a firm butt weld after cooling.
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Contact Information
Address: Longtan Industrial Zone, Yanshan County, Cangzhou City, Hebei Province
Cangzhou Hengjia Pipeline Co., Ltd.
Cangzhou Hengjia Pipeline Co., Ltd. is located in Yanshan, Hebei Province, which is the sales branch of Hebei Longrun Pipeline Group Co., Ltd.
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