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Anticorrosion method of buried steel pipe
The anti-corrosion of the steel pipe is based on the requirements of the drawing, the epoxy coal tar pitch paint is used to wrap the glass cloth, and the anti-corrosion topcoat is applied outside. The construction process of the outer wall: Pipeline derusting→priming paint→finishing paint→second ...Read more -
What are the characteristics of large diameter steel pipes
1. Impact toughness of large-diameter steel pipe: The load acting on the machine part at a high speed is called impact load, and the ability of the metal to resist damage under the action of impact load is called impact toughness. 2. Strength of large-diameter steel pipe: Strength refers to the p...Read more -
Physical and chemical properties and shape inspection of high frequency welded steel pipe
High-frequency welded steel pipe management properties: normal temperature mechanical properties, high-temperature mechanical properties, low-temperature properties, corrosion resistance. The physical and chemical properties of high-frequency welded steel pipe mainly depend on the chemical compos...Read more -
Analysis of pressure grade of carbon steel spiral steel pipe
The pressure ratio of the spiral steel pipe on the gas pipeline also tends to decrease gradually. For pipe diameter, pressure, and pressure ratio, optimization calculation and comparison are required. When the output is determined and the pipe diameter, pressure, and pressure ratio are determined...Read more -
Method of straight seam steel pipe in preheating deformation
1, Reasonable material selection. Micro-deformed die steel with good material should be selected for the precision messy die of straight seam steel pipe, reasonable casting and tempering heat treatment should be carried out for the die steel with serious carbide segregation, and solid solution do...Read more -
Forming Technology of Thin Wall Welded Steel Pipe
1. Downhill forming method: Downhill shaping of welded steel pipe equipment can significantly reduce edge extension. 2. Increase the middle extension of the billet: During the forming process, the reduction of the opening pass pattern is increased, so that the gap between the upper and lower roll...Read more