What are the obvious advantages of four straight seam elbows?

(1) The blank is a flat plate or a developable curved surface, the blanking is simple, the accuracy is easy to ensure, and the assembly and welding are convenient.

(2) There is no need for tube blanks as raw materials, which can save the cost of tube-making equipment and molds, and can obtain carbon steel elbows with any large diameter and relatively thin wall thickness.

(3) Due to the above two reasons, the manufacturing cycle can be shortened and the production cost can be greatly reduced. Since it does not require any special equipment, it is especially suitable for processing large carbon steel elbows on site.

(4) Carbon steel elbows are suitable for petroleum, natural gas, chemical, hydropower, construction and

What are the obvious advantages of four straight seam elbows?

(1) The blank is a flat plate or a developable curved surface, the blanking is simple, the accuracy is easy to ensure, and the assembly and welding are convenient.

(2) There is no need for tube blanks as raw materials, which can save the cost of tube-making equipment and molds, and can obtain carbon steel elbows with any large diameter and relatively thin wall thickness.

(3) Due to the above two reasons, the manufacturing cycle can be shortened and the production cost can be greatly reduced. Since it does not require any special equipment, it is especially suitable for processing large carbon steel elbows on site.

(4) Carbon steel elbows are suitable for pipeline series in petroleum, natural gas, chemical, hydropower, construction and boiler industries.

Elbows are made of cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics. The connection methods with the pipeline are: direct welding flange connection, hot melt connection, electrofusion connection, threaded connection and socket connection, etc.

Scope of application of straight seam elbow: welding elbow is not easy to deform, has good sealing performance, is widely used, has corresponding rigidity and elasticity requirements, reasonable butt welding thinning transition, large distance from the joint surface, and no welding temperature deformation of the joint surface. It adopts a complex bell-shaped structure and is suitable for pipelines with large pressure or temperature fluctuations or high temperature, high pressure and low temperature pipelines with a temperature of flammable, explosive media pipelines.

Straight seam elbow stamping relies on stamping dies and stamping equipment to complete the processing, with high production efficiency, convenient operation, and easy to realize mechanization and automation. The number of strokes of ordinary presses can reach dozens of times per minute, and the high-speed pressure can reach hundreds or even thousands of times per minute, and one punch can be obtained each time. The wear resistance of ceramic steel pipes mainly depends on the inner corundum layer several millimeters thick, which has a Mohs hardness of 9, second only to diamond and silicon carbide. Among all oxides, it is very hard.