H.F pipe line 508mm pipe mill

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[Product introduction]

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 219 Max 508mm
Square Hollow Section: Min 170 x170 Max 330x330 mm
Rectangular Hollow Section: Min 150x 200mm Max300x 250 mm
Tube Thickness: Min 3.0mm Max 18.0 mm (X70≤14mm)
Forming Line Speed: Max 30m/min (Square and Rectangular Hollow Shapes are produced at lower speeds depending on side to wall thickness ratio)
Tube Cut Length: Min 4 Max 15 meter
Length Accuracy: ± 3mm

Line Composion

Q:What is the surface rolling forming machine process?: The rolling process using metal at room temperature, cold plastic characteristic, through the rolling tool is the rolling tool to put some pressure on the metal surface, so that the workpiece surface by plastic deformation, the height to the lower tissue slip, the surface roughness decreased.

Q:Improvement in rolling forming process: The rolling will produce a hardening layer on the surface of the workpiece. This layer has obvious delamination phenomenon with the internal material, which is easy to cause the surface layer to fall off;

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?: According to my experience, there should be a problem with the boot encoder (also known as the digital wheel). Thank you. I hope I can help you.

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?: Generally speaking, to consider the use of rollers in the requirements, including: 1., good wear resistance, 2. toughness, 3., high hardness, 4. hardened layer (easy to wear after repeated repair)

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: The most common type of roll forming is reciprocating flat wire twisting machine. Therefore, for the manufacturers of cold heading machines and screw rolling mills, the design of rolling dies is only a matter of design.

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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