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Wall Thickness Accuracy and Straightening Method of Straight Seam Steel Pipe
The control of the wall thickness of the straight seam steel pipe is a difficult point in the production of steel pipes. At present, the methods of straight seam steel pipe manufacturers in the production of wall thickness accuracy generally include: 1. Tube billet heating: the heating should be ...Read more -
Forming method and connection type of large-diameter steel pipe
The forming method of large-diameter steel pipe: 1. Hot push expansion method: Push expansion equipment is simple, low in cost, convenient in maintenance, economical and durable, and flexible in product specification change. If you need to prepare large-diameter steel pipes and other similar prod...Read more -
Precautions for the use of stainless steel flanges
Although stainless steel flanges have unique advantages in materials, even the best things need to be used carefully so that they can be used for a longer period. What precautions should be known for the specific use of stainless steel flanges? 1. To prevent inter-eye corrosion due to the heating...Read more -
Causes of eccentricity (uneven thickness) of seamless steel pipes
The finished products of seamless steel pipes and precision steel pipes will have the problem of uneven eccentric thickness. Eccentric steel pipes are most likely to be produced in the production process of hot-rolled steel pipes. Most of the links are produced during hot piercing: According to t...Read more -
Galvanized steel pipe welding how to prevent corrosion
Anticorrosion of galvanized steel pipe welding: after surface treatment, thermal spray zinc. If the site cannot be galvanized, you can follow the on-site anti-corrosion method: brush epoxy zinc-rich primer, epoxy mica iron intermediate paint, and polyurethane topcoat. The thickness refers to rele...Read more -
Manufacturing Technology of Large Diameter Longitudinal Submerged Arc Welded Steel Pipes
Large-diameter straight seam submerged arc steel pipes are mainly responsible for the pipeline transportation of marine and land oil and gas, oil and natural gas, coal, and ore pulp. The methods and characteristics of international pipe-making technology, the forming methods of large-diameter lon...Read more