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Heating requirements for spiral steel pipes
Before the steel is hot rolled, heating the raw material not only improves the plasticity of the metal, reduces the deformation force, but also facilitates rolling. In addition, during the heating process of steel, some structural defects and stress caused by Tao ingots can also be eliminated for...Read more -
How to detect the corrosion performance of steel flanges
The use of steel flanges in industrial structural parts is mainly to improve the connection and keep the pipelines sealed without leakage. However, many steel flanges will corrode and age after being used for a period of time, thus losing their tightness. Therefore, it is very necessary to conduc...Read more -
Diameter expansion technology and detection method of straight seam steel pipe
Expanding technology of straight seam steel pipe: 1. Preliminary rounding stage: the fan-shaped blocks are opened until all the fan-shaped blocks touch the inner wall of the steel pipe. At this time, the radius of each point in the inner tube of the steel pipe within the step range is almost the ...Read more -
A brief introduction to the die-casting techniques and reagent comparison of straight seam steel pipes
Straight seam steel pipe products are widely used in water supply engineering, the petrochemical industry, the chemical industry, the electric power industry, agricultural irrigation, and urban construction. They are 20 key products developed by our country. Straight seam steel pipe is used for l...Read more -
How to cool the large diameter steel pipe after the quenching process
The steel pipe is used to transport fluid and powder, exchange heat and make mechanical parts and containers, what’s more, it’s a kind of economical steel. Using steel pipes to make building structure grids, pillars, and mechanical supports can reduce weight and save 20-40% of metal, ...Read more -
What needs to be done before the 3PE anti-corrosion steel pipe is buried
Before the 3PE anti-corrosion steel pipe is buried, it is necessary to clean up the surrounding environment first. The measuring and setting-out personnel must make technical disclosures to the commanders and mechanical operators participating in the cleaning work. At least one line of defense pe...Read more