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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 -
Deviation and Forming Method of Large Diameter Steel Pipe in Production
Deviation of large-diameter steel pipes in production: Common large-diameter steel pipe size range: outer diameter: 114mm-1440mm wall thickness: 4mm-30mm. Length: according to customer requirements can be made in fixed length or indefinite length. Large-diameter steel pipes are widely used in var...Read more -
Classification and anticorrosion of oil casing
Oil casing can be roughly divided into 1. The surface casing is according to different usage methods. Second, the middle casing. 3. Production casing. 4. Drilling casing. The surface casing is mainly to suspend and support the subsequent layers of the casing through the casing head installed on t...Read more