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What are the details of thick-walled steel pipes before use
The welding method of thick-walled steel pipes should be selected according to the material and wall thickness of thick-walled steel pipes. Because different welding methods have different arc heat and arc force, different welding methods have different characteristics. For example, tungsten arc ...Read more -
Comparison of advantages and disadvantages of spiral pipe and straight seam pipe weld
The weld seam of the spiral steel pipe is longer than that of the straight seam steel pipe. If the pipe length is L, the weld seam length is L/cos(θ). However, most of the defects of steel pipes are concentrated in the weld seam and the heat-affected zone. The long weld seam means that the probab...Read more -
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