The main forms of bends and processing methods and characteristics of special-shaped bends
According to the manufacturing method of the elbow, the elbow can be divided into simmering elbow, stamping elbow and welded elbow. The simmering elbow can be divided into cold simmering and hot simmering. Elbows are pipe fittings that change the direction of the pipeline. Bend pipes can be used at pipeline intersections, turns, beams, etc.

Related advantages and usage method of multi-station tube end forming machine
The main function of the multi-station tube end forming machine is to form the end of the steel pipe, that is, the end of the steel pipe is processed into cups, horns and other different shapes. This technology is mainly used in industrial equipment such as heat exchangers, condensers, high-pressure heaters, etc. So far, the expansion method of multi-station tube end forming machine mainly includes four basic methods: mechanical expansion, explosive expansion, rubber expansion, and hydraulic expansion.

The chamfering machine is used for chamfering and deburring the edge and plane of the workpiece to obtain the required chamfering angle. The chamfering machine is suitable for processing steel, aluminum, non-ferrous metals and other materials!
According to the type of use: it can be devided into manual chamfering machine and automatic chamfering machine.
According to the head,it can be divided into: single-head chamfering machine, and double-head chamfering machine.

Design and manufacture of the ball mandrel of the pipe bending mould
This article is about the design and production of the ball mandrel for pipe bending die. Since many customers and friends asked me about this,so I spent a little time to sort out. In fact, these have national standards.
1. First determine the type of mandrel (probably summarized several):
A. Straight head mandrel(for thick-walled metal pipe)