Driect Forming Welded Pipe Production Line
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Forming Directly To Square Welded Tube Mill Line

In the process of manufacturing square pipes, rectangle pipes with direct shaping and molding technology, combined type rollers are used with pieces structure.

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Description

In the process of manufacturing square pipes, rectangle pipes with direct shaping and molding technology, combined type rollers are used with pieces structure.

Roller sleeves are filled between roller pieces. The pieces structure is used for rollers. In the deformation region, rollers contact strip steel partially not fully, reducing the contact area and reducing the friction between strip steel and rollers accordingly.

As a result, roller consumption is little and the energy consumption of units molding is also reduced remarkably accordingly.

According to users’ needs, the machines can be designed into the multifunctional combination equipments for producing section steel, square pipes and round pipes, realizing one machine with multiple functions.

Value highlights

The roller sharing rate is as high as 100%;

Eclectic adjusting the roller spaces;

Save about 4% of steel material;

Main technical parameters

Model Material of strip steel: carbon steel of σb≤580Mpa, σs≤350MPa and low alloy steel of ≤X80 Molding speed(m/min)
Specification of square pipe Specification of round pipe
Pipe diameter(mm) Wall thickness(mm) Pipe diameter(mm) Wall thickness(mm)
LW400 40×40~100×100 2.0~5.0 Ø50~ Ø140 2.0~5.0 10~60
LW640 60×60~160×160 2.0~6.0 Ø60~ Ø165 2.0~6.0 10~50
LW800 80×80~200×200 3.0~8.0 Ø108~ Ø219 3.0~8.0 10~35
LW1000 100×100~250×250 3.0~10.0 Ø114~ Ø273 3.0~10.0 10~35
LW1200 150×150~300×300 4.0~12.7 Ø165~ Ø377 4.0~12.7 6~30
LW1600 200×200~400×400 6.0~16.0 Ø219~ Ø508 6.0~16.0 6~20
LW2000 300×300~500×500 8.0~18.0 Ø325~ Ø610 8.0~18.0 6~20

Notice: this unit is non-standard product. Parameters table is only for reference. The product can be customized according to users’ needs.

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