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Internal anti-corrosion treatment method of large-diameter spiral steel pipe
The construction of cement mortar fabric should usually be carried out after the spiral steel pipe is laid, the pressure test is qualified, and the soil is compacted according to the design requirements. Because the steel pipe has small rigidity and a thin wall, the pipeline m...Read more -
What are the requirements for stainless steel fluid pipes
Stainless steel fluid pipes are used to convey fluid substances and are used in food, pressure vessels, industrial transportation, and other industries. Pipelines for transporting fluids have very high requirements on technology, the most critical points are: 1. Requirements f...Read more -
What are the two advantages of steel-plastic composite steel pipes compared with galvanized plastic-lined composite steel pipes
The use of steel-plastic composite steel pipes and galvanized plastic-lined composite steel pipes as drinking water pipes has completely solved the problem of secondary pollution caused by the use of galvanized pipes in the past, which is a revolution in the pipeline industry....Read more -
Precautions for handling and storing stainless steel pipes at the construction site
After the thin-walled stainless steel pipes are packed and bundled, they should be stored in a dry and clean environment without corrosive gas, and should not be piled up with other items. Because the surface of stainless steel is relatively smooth and bright, and it is also a...Read more -
Straight seam steel pipe procurement method and processing method
Procurement method of straight seam steel pipe: 1. Purchasing needs to know the type of steel pipe 1) By type: straight seam steel pipe, seamless steel pipe, spiral steel pipe, etc. 2) Section shape classification of straight seam steel pipe classification: square pipe, rectan...Read more -
The purpose of preheating the steel pipe before welding the spiral steel pipe
Critical components of alloy steel and thick parts must be preheated before welding. The purpose of preheating the spiral steel pipe before welding is as follows: (1) Preheating can slow down the cooling rate after welding, make hydrogen diffuse in the weld metal and escape, a...Read more -
Advantages and disadvantages of spiral steel pipe
Advantages of spiral steel pipe: (1) Steel pipes of different diameters can be produced by using strip steel of the same width, especially steel pipes of large diameter can be produced by narrow strip steel. (2) Under the same pressure conditions, the stress of the spiral stee...Read more -
What is 3PE anti-corrosion steel pipe
As a terminal technical product of the steel pipe industry chain, anti-corrosion steel pipe has always occupied a very important position in the industry. In recent years, with the development and application of new anti-corrosion technologies for steel pipes, anti-corrosion s...Read more -
Classification of anti-corrosion steel pipes for natural gas
Classification of anti-corrosion steel pipes for natural gas 1. IPN8710 anti-corrosion When there are many kinds of corrosive media in the steel pipe, such as acid, alkali, salt, oxidant, and water vapor, the coating must be chemically inert and resistant to acid, alkali, and ...Read more