Plastic-coated composite steel pipe is a new type of pipeline material recently developed in China. It adopts a plastic-coated protective layer inside and outside, and the middle is a composite structure of reinforced welded steel pipe or seamless pressure-bearing steel pipe, which overcomes the eas

The production of anti-corrosion and thermal insulation steel pipes needs to be produced according to national standards. Different processing methods follow different standards, but they must conform to the national production standards and must be strictly followed and implemented. At present, the

a. Powder coating, which is a new type of coating that does not contain solvent and is formed by melting powder. Epoxy powder coating is commonly used in anti-corrosion engineering. Compared with traditional solvent-based anti-corrosion coatings, it has the advantages of no solvent pollution, conven

Precision stainless steel pipes are very characteristic in terms of model specifications and appearance performance. First of all, the thicker the pipe wall of this type of stainless steel pipe, the higher the cost performance and practicability, and the thinner the pipe wall, the higher the process

1. [Winch dredging]:First, use bamboo chips to pass through the steel pipeline to be cleaned, and then use the winches on the inspection wells at both ends of the steel pipeline to reciprocate the wire ropes, so that the sludge is pushed into the downstream inspection wells by the cleaning tools. Th

The most widely used anti-corrosion layers for steel pipelines include petroleum asphalt, PE jacket, and PE foam jacket, epoxy coal tar pitch, coal tar enamel paint, epoxy powder and three-layer composite structure, epoxy coal tar pitch cold wrap (PF type), Rubber-plastic epoxy coal tar pitch cold-w

The use of steel flanges in industrial structural parts is mainly to improve the connection effect and keep the pipeline sealed without leakage. However, many steel flanges will experience corrosion and aging after a period of use, thus losing the sealing effect, so It is very necessary to periodica

Spiral steel pipes are mainly used as fluid pipes and piling pipes. After the steel pipes are made, if they are used for running water, they will generally be treated with anti-corrosion on the inner or outer surface. The general anti-corrosion includes 3pe anti-corrosion, epoxy coal tar anti-corros

Different types of oil casing used in oil production: Surface oil casing protects the well from contamination by shallow water and shallow gas layers support wellhead equipment and maintain the weight of other layers of casing. Technical oil casing separates pressure at different levels so that dril

The spiral seam submerged arc welded steel pipe rotates and starts to enter the soft formation. Under the action of the tri-cone, the drill bit first produces elastic shear deformation of the formation, and then it is removed under the pressure of the tri-cone. In the simulated environment, the soft