1. Water welding with pressureThis method is suitable when the pipeline leaks, the pipe itself is in good condition without serious rust and other defects, and the pressure in the pipe is small, so it can be directly welded.2. Self-made pipe clamp plugging methodThis method is suitable for methods s

The hot-dip galvanized pipe is to make the molten metal react with the iron matrix to produce an alloy layer so that the matrix and the coating are combined. Hot-dip galvanizing is to first pickle the steel pipe. In order to remove the iron oxide on the surface of the steel pipe, after the pickling,

1 Judging from the surface, that is, in visual inspection. The visual inspection of welded joints is a simple procedure with a wide variety of inspection methods. It is an important part of finished product inspection, mainly to find welding surface defects and dimensional deviations. Generally, the

1. Welding processIn the welding process, the welding method of the spiral steel pipe and the longitudinal welded pipe is the same, but the longitudinal welded pipe inevitably has many T-shaped welds, so the probability of welding defects is greatly increased, and the welding residual stress at the

Stainless steel pipe fittings are a kind of pipe fittings. They are made of stainless steel materials, so they are called stainless steel pipe fittings. They include stainless steel elbows, stainless steel tees, stainless steel crosses, stainless steel reducers, stainless steel pipe caps, etc., acco

The appearance of the spiral steel pipe is not treated, which is beneficial to improve its service life.1. Use a wire brush, sandpaper, and other tools to polish the surface of the anticorrosive spiral pipe, which can remove loose oxide scale, rust, welding slag, etc.2. Use solvents and emulsions to

1. Longer life, ordinary steel pipes have a certain lifespan. When ordinary materials are treated with anticorrosion, their lifespan can be as long as 20-30 years or longer. It can be described as the "lifetime star" in the pipeline, and it can be saved in use. It saves replacement, maintenance and

316L stainless steel pipe is a kind of pipe widely used in construction engineering. The shape of the tube is an oblong hollow steel tube. Mechanical equipment, petrochemical equipment, medical equipment, food, and light industry pipelines or mechanical parts will all use 316L stainless steel pipes.