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What should be paid attention to when welding the industrial galvanized steel pipes
First, the welding of galvanized steel pipes should pay attention to: 1. Galvanized steel pipes with a diameter greater than 100mm should be connected with flanges or special ferrule-type pipe fittings. 2. To ensure the quality of welding, the galvanizing of the weld should be treated at the weld...Read more -
Analysis of the development of anti-corrosion painting of straight seam steel pipes
The performance and functions of the original color straight seam steel pipes in the specific use process fully demonstrate the operational contribution and the use performance. After painting, and spraying white characters, the straight seam steel pipes also look very energetic and beautiful. Th...Read more -
How to operate when stacking thick-walled steel pipes
1. Angle steel and channel steel should be stacked in the open air, that is, the mouth should be facing down, I-beams should be placed upright, and the I-groove surface of the steel should not face up to avoid water accumulation and rust. 2. Corresponding passages should be left between stacks. T...Read more -
A brief analysis of the storage site and deoxidizer issues of straight seam steel pipes
Straight seam steel pipes can be divided into many different specifications and names, including straight seam welded pipes, double-sided submerged arc welded pipes, thick-walled straight seam steel pipes, straight seam steel pipes, large-diameter straight seam steel pipes, API5L straight seam st...Read more -
The quality classification of large-diameter straight seam welded steel pipes
The application of large-diameter straight seam welded steel pipes is very common in people’s lives. Do you know what grades the quality of large-diameter straight seam welded steel pipes can be divided into? The following is an introduction to the specific content. The surface of the gener...Read more -
The role of heat treatment of stainless steel pipe fittings
After stainless steel pipe fittings are processed by forming, welding, and other processes, the metal molecular structure, magnetism, and physical properties have changed. The atmosphere protection solid solution process can restore the corrosion resistance affected after processing, and at the s...Read more -
Daily maintenance and production process of thick-walled straight seam steel pipe
The advantage of thick-walled straight seam steel pipe is that the online heat treatment process of the weld eliminates welding stress, refines the metallographic grains of the heat-affected zone, and improves the physical and mechanical properties. Western developed countries attach importance t...Read more -
Thick-walled steel pipe production steps and the phenomenon of inferior steel pipes
Thick-walled steel pipes refer to steel pipes with a ratio of outer diameter to wall thickness of less than 20. They are mainly used as petroleum geological drilling pipes, cracking pipes for petrochemicals, boiler pipes, bearing pipes, and high-precision structural pipes for automobiles, tractor...Read more -
How to cool large-diameter steel pipes after the quenching process
Steel pipes are not only used to transport fluids and powdered solids, exchange heat energy, and make mechanical parts and containers, but they are also economical steel. Using steel pipes to make building structure grids, pillars, and mechanical supports can reduce weight, save 20-40% of metal, ...Read more -
Submerged arc steel pipe welding control measures and forming methods
First, submerged arc steel pipe welding control measures: Submerged arc steel pipe has become the steel pipe for large oil and gas transportation projects at home and abroad due to its large wall thickness, good material, and stable processing technology. In large-diameter submerged arc steel pip...Read more -
Horizontal fixed welding of thick-walled stainless steel pipes and precautions for use
Horizontal fixed welding of thick-walled stainless steel pipes: Stainless steel pipes are a kind of hollow long steel strips, which are widely used as pipelines for conveying fluids, such as oil, natural gas, water, coal gas, steam, etc. Stainless steel pipes are light in weight when the bending ...Read more -
Construction preparation before welding of large-diameter steel pipes and introduction to inner wall anti-corrosion
First, construction preparation before welding of large-diameter steel pipes: 1. Organize relevant operators, familiarize themselves with construction drawings and procedures, formulate welding processes, and prepare welding operation instructions. 2. Welders should be trained for corresponding p...Read more