H.F pipe line 114 Pipe Mill

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[Product introduction]

General Description

Material to be processed:Carbon Steel, Cold Hot Rolled pre slit strip coils of weld able grade with max. 0.2% carbon
Type of Production: * Round Tubes*Squar *Square and Rectangular Hollow Sections
Round Tube Outside Diameter: Min 22 Max 114mm
Square Hollow Section: Min25x 25 Max 90 x 90 mm
Rectangular Hollow Section: Min 25 x40 Max 80x 120 mm
Tube Thickness: Min 1.2 Max 4.5 mm
Forming Line Speed: Max 60m/min (Square and Rectangular Hollow Shapes are produced at lower speeds depending on side to wall thickness ratio)
Tube Cut Length: Min 4 Max 12 meter
Length Accuracy: ± 3mm
Main Drive Motor: DC 90kW×2

Line Composion

Double Mandrel Uncoiler.
Shear and TIG Welder.
Horizontal Strip Accumulator.
Forming, Welding, Cooling and Sizing Section.
Computer Flying Saw Cut-Off.
Straightener
End Milling and Chamfering Machine
Baling Press
Driven Roller Run Out Table, Inspection table & Collectors.
Solid State H.F. Induction Welder: 300 kW, Solid State(400kW,Vaccum Tube Type) Type
Rolls: Rolls are manufactured out of AISI D3 D2 E52100
Electrical Panels

Q:What is the surface rolling forming machine process?: Different from cutting, mirror rolling is a kind of plastic processing. Not only is the rolling workpiece surface roughness moment can reach Ry0.1-0.8 m, and the wear resistance of the surface hardening process has been improved at the same time fatigue strength also increased 30% advantages in cutting can not get.

Q:Improvement in rolling forming process: It is difficult to control the rolling process and can cause waste easily.

Q:A roll forming machine, rolling out of the length is always not up to a fixed size, not too small, that is, more than that, what is the cause?: Maybe there is something wrong with that roller. It rolls out of the wrong angle and the size will be out of order.

Q:What kind of material and what heat treatment are used for pressing roller (molding, feeding, cutting force, heavy load, heavy load) of sheet steel rolling machine?: Use 40Cr or 20Cr, Cr12.Cr12MoV, quenching and tempering treatment, think of hardness, high point, carburizing, nitriding, and consider adding lubrication device to extend its service life

Q:Process mould for rolling forming process: Rolling forming is more complicated and requires higher than rolling thread. The die design is based on the different shapes of the workpiece, the design of the rolling plate into a cross section or a few sections, can use synchronous type; also can use grading type.

Q:What is rolling forming processing?: A special rolling tool is used to exert certain pressure on the surface of the workpiece so as to make the surface metal flow.

Q:Material and equipment for roll forming process: Rolling process is a cold forging process, which can be used for rolling and forming a lot of materials. Among them, low carbon steel is a material commonly used in rolling forming, and non-ferrous metal is more suitable for roll forming.

Q:Introduction of roll forming process: Roll forming began around 1960s in europe. Because of roll forming, the working model has the advantages of high production efficiency, saving material and increasing product strength.

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