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Direct Forming Tube Mill Line

Direct forming tube mill line can produce both round and square, rectangular pipes. It adopts direct forming technology. The core technology lies in adjusting the spacing and position of the rollers to meet the forming requirements of different pipes, rather than relying entirely on replacing the rollers.

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Description

Direct Forming Tube Mill Line

It's main feature and core advantages are as follows:

Main feature

Quick change model (Cassette):

When changing the size of the tubes, do not need change rollers at open profile area, only the roller position is changed.

When changing the size of the tubes, need to change rollers at closed profile area, squeezing rollers and sizing part. The roller systems are designed as modular. When change sizes, just need to change the whole modular.

Adopt continuous edge bending forming, W bending and short vertical scope to limit the rolling phenomenon.

The horizontal stand press device, upper roller and side roller of squeeze roller stand all adopt electric screwdown, which will reduce labor and improve efficiency.

Core advantages

100% Roller Sharing at open profile Forming section, one set of rollers for all pipe sizes. Reduce roller cost up to 90%.

The closed profile area are designed as cassette type, when changing the size of the tubes, just need to change the whole modular, reduce adjustment time 70%.

Working Flow

Coil loading → uncoiling→ pinching&leveling → shearing and butt-welding→ accumulating → Pinch and Feeding → Trimming → Scrap crushing → strip ultrasonic flaw detection → Guiding → forming → HF welding → ultrasonic flaw detection → deburring → Weld seam grinding → water cooling → sizing and straightening → cut to length → run out table → end facing → Hydrotesting → manual inspection → repairing → automatic stacking and packing → storage.

Components list

No.	Component name	Qty	Remark
1	Coil skid	2-3 sets	Optional
2	Uncoiler with coil car	1 set
3	Butt-welder	1 set
4	Horizontal Accumulator	1 set
5	Forming, welding and sizing device( Roughly straightening and cooling included)	1 set
6	Cutting saw	1 set
7	Run out table	1 set
8	Solid state high-frequency welder	1 set
9	Automatic Electrical Control System	1 set	Servo control
10	Automatic stacking and packing machine	1 set
11	Hydro testing machine	1 set	Optional
12	End facing machine	1 set	Optional
13	Tube straightening machine	1 set	Optional

The application of Direct forming tube mill line

This kind of tube mill line manufactures steel pipes with a diameter of 219 or more. The steel pipes produced have strong structural strength, pressure resistance and adaptability. This production line can also be equipped with auxiliary equipment such as a hydraulic testing machine, a steel pipe flat head machine, and a steel pipe straightening machine. The steel pipes produced are mainly applied in:

1. In the field of building steel structures:

It is often used as the load-bearing framework, supporting columns or beams of large factories, warehouses, stadiums, exhibition centers and other buildings. The right-angle structure of square tubes facilitates the construction of frames, while the streamlined shape of round tubes ensures more uniform force distribution, which can meet the structural load-bearing requirements of large-span buildings.

2. In the field of municipal engineering:

It can be used for guardrails on urban roads, street lamp poles, traffic signal poles, as well as auxiliary support structures for Bridges and brackets for underground pipe galleries, etc. This type of scenario requires the pipes to have certain wind resistance and pressure resistance capabilities, and be able to adapt to outdoor environments.

3. In the field of mechanical manufacturing:

In heavy mechanical equipment (such as cranes, loaders, rolling mills, etc.), it can be used as structural components, outer sleeves of transmission shafts or pipelines of hydraulic systems, etc., to withstand the forces and pressures during mechanical operation.

4. In the energy and chemical industry:

It is suitable for small and medium-sized oil and gas pipelines, as well as some process pipelines in chemical enterprises (for transporting non-strongly corrosive media). It can also be used as a supporting structure for oil storage tanks and reaction vessels. Its thickness and pipe diameter can meet certain pressure resistance and load-bearing requirements.

5. In the field of vehicle manufacturing:

It is applied in the frame and chassis load-bearing structures of large trucks and special vehicles (such as engineering vehicles and recreational vehicles), providing stable support for the vehicles.

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