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Heating requirements for spiral steel pipes
Before hot rolling of steel, heating the raw materials not only improves the plasticity of the metal, reduces the deformation force, but also facilitates rolling. In addition, during the heating process of steel, certain structural defects and stress caused by the steel ingot can also be eliminat...Read more -
What inspections are required after submerged arc steel pipe production
During the production of submerged arc steel pipes, the temperature must be strictly controlled to ensure the reliability of the welding. If the temperature is too low, the welding position may not reach the temperature required for welding. When most of the metal structure is still solid, it is ...Read more -
Classification of quality of large diameter straight seam welded steel pipes
The application of large-diameter straight seam welded steel pipes has become very common in people’s lives. So, do you know what grades the quality of large-diameter straight seam welded steel pipes can be divided into? Let me introduce you to the specific content below. Generally, the sur...Read more -
What are the reasons for uneven wall thickness of spiral seam submerged arc welded steel pipes
The spiral seam submerged arc welded steel pipe has a uniform wall thickness, looks good, is evenly stressed, and is durable. The spiral seam submerged arc welded steel pipe has uneven wall thickness and uneven stress on the steel pipe. The thin parts of the steel pipe will easily break. The unev...Read more -
Why can 3pe anti-corrosion steel pipes be anti-corrosion
3PE anti-corrosion steel pipe means a PE steel pipe with three layers of anti-corrosion. 3pe anti-corrosion steel pipe is a kind of steel pipe with relatively good anti-corrosion properties and is widely used nowadays. What anti-corrosion materials does the structure of 3pe anti-corrosion steel p...Read more -
Spiral steel pipe cutting method
At present, the most common pipe cutting method used by spiral steel pipe manufacturers is plasma cutting. During cutting, a large amount of metal vapor, ozone, and nitrogen oxide smoke will be produced, which will seriously pollute the surrounding environment. The key to solving the smoke proble...Read more