To solve the problem of excessive misalignment in the alignment of spiral steel pipe nozzles, the following preventive measures should be taken in quality management control:1. Try to use the internal alignment device.2. Do a good job in engineering measurement and trimming when assembling.3. When t

(1) During the extrusion process, the temperature of the inner lining of the spiral steel pipe increases continuously with the extrusion process. At the end of the extrusion, the temperature of the inner wall of the inner lining near the extrusion die is higher, reaching 631 °C. The temperature of t

1. Impact toughness of large-diameter steel pipe: The load acting on the machine part at a high speed is called impact load, and the ability of the metal to resist damage under the action of impact load is called impact toughness.2. Strength of large-diameter steel pipe: Strength refers to the perfo

Thin-wall stainless steel pipe socket argon arc welding construction method has the following characteristics:1. The welding process does not require welding consumables (replaced by the expanded pipe edge). The steel pipe is inserted into the pipe fitting socket. The socket end is welded in a circl

1. The use of large-diameter stainless steel pipe can be divided into oil well pipes (casing pipes, oil pipes and drill pipes, etc.), pipeline pipes, boiler pipes, mechanical structure pipes, hydraulic prop pipes, gas cylinder pipes, geological pipes, chemical pipes (high-pressure chemical fertilize

Steel pipe anti-corrosion methods generally use coating anti-corrosion. Coating anti-corrosion is to apply coating uniformly and densely on the surface of the rusted metal pipe to isolate it from various corrosive media.1. Anti-corrosion coating on the outer wall of steel pipeThe anti-corrosion of t

Large-diameter straight seam welded pipe is a general name, which is produced by steel strips, and the pipes welded by high-frequency welding equipment are called straight seam welded pipes. (It gets its name because the welding of the steel pipe is in a straight line). Among them, according to diff

1. During the forming process of double-sided submerged arc welded spiral steel pipe, the steel plate is uniformly deformed, the residual stress is small, and the surface is not scratched. The processed steel pipe has greater flexibility in diameter and wall thickness within the steel pipe size spec

Many people, do not know under what circumstances stainless steel pipe fittings need to be selected for welding technology, so the next step is to look at it step by step to facilitate the selection of welding technology in the future.1. Argon arc welding is a welding technology that uses argon gas

Spiral welded pipe and straight seam welded pipe have different technical characteristics and production processes. There are many differences and differences in production, different functions and uses, and different values in use.Below, we make a simple comparison of the technical characteristics