​ The process used by carbon steel elbow manufact

The process used by carbon steel elbow manufacturers

The basic process of carbon steel elbow is: first welding a polygonal polygonal polygonal ring shell or closed at both ends of the polygonal fan shell, the internal pressure is filled with pressure medium, the internal pressure under the action of the cross section from polygon gradually become a circle, and finally become a circular ring shell. As required, a circular shell can be cut into 4 90° elbows or 6 60° elbows or other sizes. This process is suitable for manufacturing large elbows of any size with the ratio of middle diameter to inner diameter of elbows greater than 1.5 times. It is an ideal method for manufacturing large carbon steel elbows. 

The advantages of the production process of carbon steel elbow are mainly shown in the following aspects:

Without tube blank as raw material, the cost of tube making equipment and mould can be saved, and the blank with arbitrary large diameter and relatively thin wall thickness can be flat or developable surface, so the feeding is simple, the accuracy is easy to ensure, and the assembly and welding is convenient.

As a result of the above two reasons, the manufacturing cycle can be shortened and the production cost greatly reduced. Not requiring any advanced equipment, especially suitable for site processing of large carbon steel elbow.

Carbon steel elbow is suitable for pipeline series in petroleum, chemical, hydropower, construction and boiler industries.

Seamless elbow: Elbow is a pipe fitting used at bends in pipes. In all pipe fittings used in the pipeline system, the proportion is larger, about 80%. Usually, different forming processes are selected for elbows of different materials or wall thickness. Manufacturers commonly used seamless elbow forming process has hot push, stamping, extrusion and so on.

Carbon steel elbow is a metal pipe that changes the direction of the carbon steel pipe. The connection mode is threaded and welded. According to the Angle, there are three kinds of 45° and 90°180° commonly used, in addition according to the engineering needs also include 60° and other abnormal Angle elbow.