News
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Position regulation and purity improvement of straight seam steel pipes induction coil
Adjustment of the position of the high frequency induction coil of the straight seam steel pipe: The excitation frequency of straight seam steel pipe is inversely proportional to the square root of capacitance and inductance in the excitation circuit, or proportional to the square root of voltage...Read more -
Inspection standards and welding control problems of thick-walled steel pipe
Through observation, it is not difficult to find that in the production of thick-walled steel pipes, thermal expansion pipes, etc., the pipes obtained by thick-walled welding on high-frequency welding equipment are called thick-walled steel pipes. Among them, according to the different uses and d...Read more -
What are the cutting methods of thick-walled spiral steel pipe
1. The mechanical cutting of thick-walled spiral steel pipe adopts two types of external installation and internal installation. It uses the principle of turning tool processing to cut and groove the nozzle. The single machine has a large span, a large thickness that can be processed, less waste,...Read more -
Technical characteristics of double-sided submerged arc welding spiral steel pipe
1. During the forming process of the spiral steel pipe, the deformation of the steel plate is uniform, the residual stress is small, and the surface does not produce scratches. Processed steel pipes have greater flexibility in the range of diameter and wall thickness of steel pipes, especially in...Read more -
Advantages of spraying polyurethane wear-resistant and anti-corrosion coating materials on steel pipes
In addition to the excellent chemical corrosion resistance, strong adhesion, and mechanical damage resistance as the outer wall anti-corrosion layer, the steel pipe lining also needs excellent wear resistance. Polyurethane wear-resistant and anti-corrosion coating materials are different from gen...Read more -
What materials will be used in the anti-corrosion treatment of spiral steel pipes
The materials used for the anti-corrosion processing of spiral steel pipes play a decisive role in the quality of anti-corrosion steel pipes. During anti-corrosion processing, raw materials must be strictly tested. Different anti-corrosion processing requires different anti-corrosion materials. 1...Read more