The selection of appropriate coating materials for internal and external anti-corrosion coated composite steel pipes is crucial to ensure the adhesion strength of the internal and external coatings. The internal and external anti-c... [阅读全文]

The production of spiral submerged arc welded steel pipes, according to the welding principle of submerged arc welding, each weld seam should have a starting and extinguishing point, but this condition cannot be achieved when ea... [阅读全文]

Mining coated steel pipes are often used in complex environments, such as mines and underground mines, where pipelines need to withstand significant pressure and vibration. Flange connected coated steel pipes can adapt to these c... [阅读全文]

Spiral steel pipes are named after their spiral shaped inner and outer submerged arc welding seams. Spread the hot-rolled coil plate flat through the uncoiling equipment and deliver it to the next process. Before entering the n... [阅读全文]

The production specifications and diameters of spiral steel pipes are 219mm and 3820mm, and the materials mainly include Q235B, No. 20 steel, Q355B, and pipeline steel. According to the quality inspection results of spiral steel... [阅读全文]

The material of Q235-A spiral steel pipe is divided into four grades (A, B, C, D), with the main difference being that Q235-A does not undergo impact testing; Q235-B undergoes an impact test at a temperature of 20 degrees Ce... [阅读全文]

The connection method of double flange coated steel pipe is to use flange connection. Before the steel pipe is coated with plastic, the flange plate is welded at both ends of the steel pipe, and then the overall hot melt sp... [阅读全文]

The processing methods for 3PE anti-corrosion steel pipes are generally divided into two types: winding and circular mold wrapping. The standards for 3PE anti-corrosion steel pipes mainly focus on specification polyethylene and hig... [阅读全文]

The production and processing of fiberglass prefabricated buried steam insulation pipes need to meet the technical conditions of urban heating prefabricated buried steam insulation pipes and comply with the technical specifications ... [阅读全文]

TPEP anti-corrosion steel pipe (i.e. outer 3PE inner EP anti-corrosion steel pipe) is an upgraded product based on outer polyethylene inner fusion bonded epoxy composite steel pipe, and is currently a more suitable anti-corrosion... [阅读全文]