The main process parameters of high-frequency straight seam welded pipe include welding heat input, welding pressure, welding speed, opening angle, position and size of the induction coil, position of impedance, etc. These parameters have a greater impact on improving the quality of high-frequency w
Spiral welded pipes and straight seam welded pipes have different technical characteristics and production processes. They have many differences and differences in production, have different functions and uses, and their values in use are also different.The first is the difference in the welding pro
Steel flange is a commonly used flange technology, which has the advantages of high production efficiency and low production cost, and is suitable for medium and low-pressure pipelines. Forged pipes are recommended for pipes operating at high pressures.Product name: Steel FlangeSize: 15''Standard: A
1. Different definitions:Long-radius steel elbow: Long-radius steel elbow means that the radius of curvature of the elbow is 1.5 times the diameter of the pipe; if it is greater than 1.5 times, it is in the category of elbows.Short radius steel elbow: The short radius steel elbow means that the radi
Spiral steel pipe and steel coil pipe are both welded steel pipes, and the production process of the two is very different. Spiral steel pipe is a spiral seam steel pipe made of strip steel coil as raw material, extruded at regular temperature, and welded by automatic double-wire double-sided submer
1. Welding process: In the welding process, the welding method of the spiral steel pipe and the straight seam welded pipe is the same, but the straight seam welded pipe will inevitably have many T-shaped welds, so the probability of welding defects is greatly increased. The welding residual stress i
Push-made steel elbow: the process of pushing steel elbow with machinery + mold inner tube + intermediate frequency heating method, but later it is probably difficult to control the inner and outer wall thickness, and it is rarely used in practice. Socket weld elbows: most are forged. Sockets are us
The seamless steel pipe is a tubular section or hollow cylinder. It is formed by drawing a solid billet over a piercing rod to create a hollow shell, without welding or seam. It can withstand higher pressure resistance. So seamless steel pipe can use to transport flow liquid, gas, and other material
Steel elbows are divided into welded and seamless. The main difference lies in the raw materials. Seamless steel elbows are made of seamless pipes. Welded steel elbows refer to butt-welded steel elbows and straight seam steel elbows.The difference between the butt-welded steel elbow and the seamless
The processing of the outer anti-corrosion layer of the steel pipe must strictly follow the design requirements and relevant national standards. Rust removal must reach Sa2.5 level, and the primer must be applied within 2 hours after the rust removal is completed. After the primer is dry, the anti-c
