For the manufacture of carbon steel and stainless steel steel pipe elbow expanding machine

The structure and principle of tube expanding machine

The tube expanding machine is a parallel equal-speed hydraulic pusher with double cylinders. Pipe-expanding machine feeding by the feeding winding machine, the stock moving wire rope, push the pipe through the wire rope wheel, reciprocating operation, to expand the primary pipe into the equipment.

The intermediate frequency power supply of the tube expanding machine is installed at the front end of the equipment, and the intermediate frequency induction coil is placed on the coil adjusting frame, and the coil can be adjusted up and down, forward and backward. After the core reamer dies and the core reamer, the pump and the intermediate frequency power supply are opened and the intermediate frequency power is adjusted, the core reamer dies and the pipe can be heated and the pipe can be gradually pushed forward. The pipe will rise to a certain temperature with the heating temperature, resulting in plastic deformation. The pipe can be expanded by pushing forward along the outside diameter of the mandrel.

The controllable silicon, intermediate frequency coil, reactor and other components of tube expander need circulating water cooling. Some of the electrical control of the tube expanding machine is installed in the total control cabinet, the tube expanding machine is installed at both ends of the trip switch, push the plate in place, active parking.

Many domestic and foreign steel pipe manufacturers or dealers will have a lot of steel pipe inventory, which is accumulated all year round. This quantity is not small, occupying the space of the site and affecting the return of capital, which will make many people headache. But now there is a new technology that can easily solve this problem, which is the hot-expansion steel pipe technology created by Chinese non-standard equipment supplier KEYA. This process can expand the steel pipe of various materials from small diameter to large diameter through induction heating process, effectively solving the problem of high inventory of steel pipe for users. As the best non-standard supplier of steel pipe secondary processing in the Chinese market, the company applied for the patent of thermal tube expanding in 1998. At present, thermal tube expanding machine has been widely used and developed in the Chinese market, and has been recognized by all industries.
Steel pipe technical parameters:
1) Material: carbon steel, alloy steel, stainless steel.
2) Diameter: 89-1420mm
Wall thickness: 30-150mm
3) Length: 3-24m

Hei Yan Group Covers the following R&D abilities :

1. PLC induction pipe bending machine,
2. Cold forming tee machine
3. Automatic Hot forming elbow machine
4. hydraulic pipe expanding machine
5. Bevel machine
6. Hydraulic press machine.
7. Cold elbow forming machine
8. Bandsaw machine
9. Medium Frequency power source
10. Shot Blast Machine
11. Pipe fittings dies&mandrels
12. Steel pipe fittings