In the production process of spiral steel pipe, if the production process is unreasonable and the machine parameters are not properly set, there will be deviations, especially for large-diameter spiral steel pipes, which is often referred to as the wrong side phenomenon. During the production of spiral steel pipe, the wrong side occurs from time to time, and there…
Read MoreSpiral steel pipe(ssaw) is a steel pipe with spiral seam, which is made of strip steel coil as raw material, often warmly extruded, and welded by automatic double-wire double-sided submerged arc welding process. It is mainly used in pipeline transportation of oil, natural gas, bridges, docks, roads, buildings and other projects. Welding is the most common connection method for…
Read MoreConnection method of large diameter spiral steel pipe (SSAW): The common connection method of large-diameter spiral steel pipe is welding, but in some projects, threaded connection, flange connection, socket connection, groove connection and other forms are often used. 1. Welding, flange connection Welding and flange connection are traditional spiral steel pipe connection methods, which are far from meeting the…
Read MoreFor plasma cutting of spiral steel pipe (ssaw), the difficulty of dust removal is: 1. When the nozzle of the plasma gun is cutting, the air is blown out in two opposite directions at the same time, so that the smoke and dust emerge from both ends of the steel pipe, and the suction port installed in one direction…
Read MoreThe anti-corrosion operation we first discuss refers to the routine maintenance of spiral steel pipes that have not been treated with anti-corrosion treatment. Because of its good anti-corrosion performance, the anti-corrosion spiral steel pipe is relatively less affected by the season, but for conventional spiral steel pipes (SSAW) , summer is a season that is easy to be corroded….
Read MoreThere are many kinds of base materials for anti-corrosion steel pipes, such as spiral steel pipes (ssaw), straight seam steel pipes, seamless steel pipes, etc. Therefore, the quality of anti-corrosion steel pipes must be judged from the base material and anti-corrosion quality. 1. Anticorrosion (1) The appearance is delicate and the workmanship is good, without burrs. (2) The internal…
Read MoreIn recent years, with the continuous upgrading of the welding process of large-diameter spiral steel pipes (SSAW), the processing quality and process performance will be significantly improved. Therefore, the quality of the factory will also have differences in grades. Among them, after the types of such pipes sold in the market continue to increase, there will be a very…
Read More(1) Cold-drawn or cold-rolled anticorrosive spiral steel pipes with a wall thickness of not more than 1.5 mm; welded steel pipes with a wall thickness of not more than 1 mm and surface-polished rolled stainless steel pipes shall be packed in strong wooden or iron boxes. (2) Each box should be steel pipes with the same contract number. When…
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.
