Tianjin Yuantai Derun Group JCOE Φ1420 large lsaw pipe unit put into operation to fill the gap in Tianjin market
JCOE is a pipe making technology for the production of large diameter thick walled steel pipes, based on a double sided submerged arc welding production process, where the product is milled, pre-bent, bent, seamed, internally welded, externally welded, straightened, and flat-ended in multiple processes. The forming process can be broken down into N+1 steps (N is a positive integer), with the steel plate being automatically fed and bent transversely in set steps to achieve CNC progressive J-C-O forming. The steel plate enters the forming machine in the transverse direction, and is driven by the feeding trolley to carry out the first stage of N/2 steps of multi-step bending to achieve the "J" forming of the first half of the steel plate; the second stage first makes the "J" formed steel plate fast transverse feeding to the transverse Specified position, from the other end of the unformed steel plate for another N / 2 steps of multi-step bending, to achieve the second half of the steel plate forming, to complete the "C" forming; Finally, the lower part of the "C" pipe billet bending once to achieve "Each step of the press is based on the basic principle of three-point bending.
LSAW steel pipe play an important role in large lsaw line pipe projects, water and gas transmission projects, urban pipeline network construction, bridge piling, municipal construction and urban construction. In recent years, as a new type of energy-saving and environmentally friendly building system, the steel structure building has been hailed as the "green building" of the 21st century. In more and more high-rise and ultra-high-rise building design scheme to give priority to the use of steel or steel-concrete structural system, large-span buildings actively using space grid structure, three-dimensional truss structure, cable membrane structure and pre-stressed structural system, these are steel pipe in the construction of more application scenarios, and large-diameter, ultra-thick-walled steel pipe demand has also increased significantly.In fact, the lsaw and hsaw pipes produced by Yuantai Derun Steel Pipe Manufacturing Group are widely used.As a high-quality lsaw pipe manufacturer in China, Yuantai Derun is involved in the supply of steel pipes for many major projects.
The JCOEΦ1420 unit of Tianjin Yuantai Derun Steel Pipe Manufacturing Group can produce specifications ranging from Φ355.6mm to Φ1420mm in diameter and up to 50mm in wall thickness, which will fill the gap in the Tianjin market for such products when it is put into operation and can significantly shorten the lead time for ordering oversized, ultra-thick-walled structural round and rectangular pipes. The double-sided submerged arc welding large longitudinal welded pipe can be directly used for oil and gas transmission, JCOE steel pipe has been widely used in the national "West-East gas transmission" project, while as a structural steel pipe can be applied to the construction of ultra-high-rise steel structure, in addition to the use of "round to square" process can be processed into oversized diameter In addition, the "round to square" process can be processed into oversized, ultra-thick-walled rectangular steel pipes, which can be used in large amusement facilities and heavy machinery and equipment manufacturing.