H.F pipe line 165 Pipe Mill

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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 50.8 Max 165mm
Square Hollow Section: Min 40x 40 Max 130 x 130 mm
Rectangular Hollow Section: Min 40 x 60 Max 100x 160 mm
Tube Thickness: Min 1.8 Max 6.0 mm
Forming Line Speed: Max 55 m/min (Square and Rectangular Hollow Shapes are produced at lower speeds depending on side to wall thickness ratio)
Tube Cut Length: Min 4 Max 15meter
Length Accuracy: ± 3mm

Line Composion

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?: Yes, the width of the bearing plate can be a deviation from the length.

Q: What is rolling forming processing?: Ironing the surface of the workpiece with a raised micro wave crest to fill the concave micro troughs, thus changing the distribution of the peaks on the surface, and obtaining smaller surface roughness values.

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: Introduction of roll forming process: Not only threaded fasteners industry applications, automobiles, bicycles and other industrial sectors also use rolling forming process, processing complex shapes of parts.

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: 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: Process mould for rolling forming process: A movable wire plate, made of the same fixed wire plate, for relative reciprocating motion. Roll forming is the design of different structures on the plate rolling on the workpiece. Roll out all kinds of thread, convex ring, knurling, end chamfering, groove with different width and thickness as well as other required shapes.

Q: Material and equipment for roll forming process: Rolling molding is usually through upsetting a blank cold heading machine, thread rolling machine rolling after processed. The equipment for thread rolling and rolling forming includes various reciprocating flat rolling machines, planetary wire rolling machines, two cylindrical roller spinning machines and three cylindrical roller spinning machines.

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