HG89 High Frequency Welding Tube Mill Line

The HG89 High Frequency Welding Tube Mill Line is the main equipment in the high frequency welded pipe production line. It can be divided into different types according to the diameter and the wall thickness of the pipe. The mill can produce circular pipe, square and rectangular pipe and special pipe using low carbon steel & alloy steel.

The specific process flow is:
Steel strips are first fed into the machine then are shaped into pipe blanks by rollers.
Then, under skin and proximity effects of high frequency electric current, induced electricity is concentrated onto the bonding surface of the pipe profile fringe.

The heated up pipe profile fringe is quickly moved to the welding temperature and finished welding under the squeeze roller's pressure.

After cooling, sizing and broad straightening,  the steel pipe of needed specification is achieved.

Our products such as roll forming unit, FFX forming unit, cage forming unit can produce X80 and J55 API petroleum casing pipes and petroleum and gas pipes, which conform to the standard of API-5L, API-5CT.

This unit can also produce special pipes for air cooling condenser used by electric power plants or steel mills.

Parameters:
Diameter: ф32-ф89mm and correspondent size square and rectangular pipe
Wall thickness 1-4.5mm
Steel strip material: бb≤588MPa  бs≤380MPa   Mild steel & low alloy steel
Welding speed: 20-70m/min
Main motor power: 160Kw
High frequency equipments: 300kw

Equipment composition:
HG89 High Frequency Welding Tube Mill Line consist of an Uncoiling Machine, Unbender Unit, Active Flattening Machine, Shear and Butt welder, Storing Loop, Forming and Sizing Unit, Computer Flying Saw, End Milling Machine, Hydrostatic Testing Machine, Charge Table, Inspected Equipment, Sack and Bale Machine, High Frequency DC, Product Line Electric Appliance.

Specifications:

Note: The line is non-standard products and can be produced according to user requirements, parameters sheet for reference only.