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HF Directly to Rectangle/ Square

Square & Rectangle pipe mill is the special equipment to produce square and rectangle steel pipe. This equipment adopts the multipoint bending combined-type forming technology. One set of mould can produce all size of square and rectangle pipe. Compared with the traditional technology, the produce will have a good appearance, a good angle; share one set of mould, can cut down the cost of the machine, shorten the time of adjusting the mould; decrease the forming resistance, lighten the mould wear, reduce the load of power utilization.


Process Flow
Raw Material (Strip Coil) --- Decoiler --- Snubber Roller + Pinch Roll + Leveler --- Shear & Butt Welder --- Horizontal Accumulator --- Forming (directly forming to square to rectangle shape) --- HF Welding --- Scraping --- Cooling --- Sizing --- Straightening --- Cutting --- Run-out


 

Model

Raw material:бb≤580Mpa, бs≤350Mpa

low carbon steel and alloy steel≤X80

Forming Speed

(m/min)

Specifications of Square& Rec. Pipe

Specifications of Round Pipe

Diameter range(mm)

Thickness range(mm)

Diameter range(mm)

Thickness range(mm)

RT100×5

40×40~100×100

2.0~5.0

Ф50~Ф140

2.0~5.0

10~60

RT160×6

60×60~160×160

2.0~6.0

Ф60~Ф165

2.0~6.0

10~50

RT200×8

80×80~200×200

3.0~8.0

Ф108~Ф219

3.0~8.0

10~35

RT250×10

100×100~250×250

3.0~10.0

Ф114~Ф273

3.0~10.0

10~35

RT300×12.7

150×150~300×300

4.0~12.7

Ф165~Ф377

4.0~12.7

6~30

RT400×16

200×200~400×400

6.0~16.0

Ф219~Ф508

6.0~16.0

6~20

RT500×18

300×300~500×500

8.0~18.0

Ф325~Ф610

8.0~18.0

6~20

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