Welded pipe is the abbreviation of welded steel pipe. It is a steel pipe made of steel plates or strips that are welded after being curled and formed. The length is usually 6 meters. The production process of welded steel pipes is simple, the production efficiency is high, there are many varieties and specifications, and the equipment investment is low, but the general strength is lower than that of seamless steel pipes.
Types of Welded Steel Pipes:
Longitudinal submerged arc steel pipe (LSAW pipe) is a steel pipe with a weld seam parallel to the longitudinal direction of the steel pipe. It is made of hot-rolled or cold-rolled steel plates or steel strips that are curled and welded. The production process of straight seam welded pipe is simple, the production efficiency is high, the cost is low, and the development is rapid. Straight seam steel pipes are widely used in water supply projects, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction.
Electric resistance welded steel pipe (ERW pipe) uses the skin effect and proximity effect of high-frequency current to heat and melt the edge of the pipe blank after the hot rolled coil is formed by a forming machine, and presses it under the action of a squeeze roller Welding to achieve production. ERW has the characteristics of high efficiency,low cost,material saving and easy automation,it is widely used in aviation, aerospace, energy, electronics, automotive, light industry and other industrial sectors, is an important link in the welding process.
The main uses and applications of welded steel pipes are as follows:
1. Conveying pipelines
Welded steel pipes are widely used to transport oil, natural gas, gas, water and other fluids, especially in urban gas and water supply systems.
2. Structural pipe
Welded steel pipes are used in engineering fields such as building structures, bridges, steel frames, and supports. They have good bearing capacity and shock resistance.
3. Electric power industry
Welded pipes are also suitable for transportation pipelines in the electric power industry. Among them, high voltage power transmission and gas transmission, low voltage power distribution and gas transmission, underground gas pipeline, heat pipeline, urban gas pipeline and other places are also commonly used welded pipe as a conveying pipeline materials.
4. Machinery manufacturing
Welded steel pipes can be used to manufacture various mechanical parts, such as shafts, brackets, conveyor rollers, etc.
5. Oil and gas drilling
Welded steel pipes can be used in the manufacture of oil and gas drilling and oil production equipment, such as drill pipes, casings, etc.
6. Tower Fabrication: Welded steel pipes are used in the fabrication of broadcasting and communication towers.
7. Greenhouses: Welded steel pipes are often used in the manufacture of supports for greenhouses due to their lower cost and better strength.
8. Bicycle and motorcycle manufacturing: Welded steel pipes are used to make the frames of bicycles and motorcycles.
9. Furniture manufacturing: Welded steel pipes can be used to produce various furniture such as bed frames, bookshelves, chairs, etc.
Overall, as a widely used steel pipe, welded pipe has many advantages, including low cost, wide applicability of materials and so on. The above brief description of the welded pipe abbreviation and its application is only one part, they have many other applications and abbreviations, we can further understand and apply in the actual production and use.
