FFX Forming and Sizing Section

The proposed tube mill is a combination of equipment installed in a line for the production of High Frequency Induction Welded (HFIW) carbon steel tubes. The process involved is cold forming of carbon steel strip in circular shapes, longitudinal welding, sizing, converting into specified shape and cutting to pre determined length.

The complete line is divided in three sections:

▪ Entry Section

▪ Forming, welding, Cooling and sizing Section

▪ Cutting and Delivery Section

Raw material (Steel Strip) in form of a coil is uncoiled and fed into forming section passing through the equipment of entry section. Entry section enables the tube mill to run continuously by using strip joining and accumulation equipment. Tube is formed in round shape passing through a set of driven and idler rollers of forming section before welding. In welding section tube id longitudinally welded by using high frequency induction welding method. Outside bead is removed and formed in shape of scrap. The weld seam is ironed and tube passes though the cooling section. In sizing section, tube is formed to specified size and converted into specified shape. After sizing, tube is cut to specified size and converted into specified shape. After sizing, tube is cut to specified length by using flying cutting equipment and delivered in collecting though passing through run out conveyor.

Uses Japan type FF “Flexible Forming” way to produce round pipe.

“FF” Forming Way Advantage:

1. It can save 40-60% expenses on rollers;

2. One set of roller can be used to produce all round pipe between Φ114 and Φ273 in the break down section. And roller in the breakdown section no need to be changed.

3. It can reduce product period;

4. It is easier to restore and adjust roller;

5. Adjusting and maintaining easier.

6. Square and rectangle pipe change from round pipe.

Our Machine produce:

a. Round pipe

b. Square and rectangle pipe

c. API standard casing and tubing

d. Solar field pipe

e. Cold forming C,Z,L,U