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Extruded composite smooth aluminum sleeve cable production equipment and a production method

A technology for producing equipment and aluminum sleeves, which is applied in the direction of insulated cables, cable/conductor manufacturing, cables, etc. It can solve the problems of bowing, wrinkling, and uneven coating of hot melt adhesives, etc., and achieves small outer diameter and elastic modulus. Big, compact effect

Pending Publication Date: 2020-08-11
ZHEJIANG CHENGUANG CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a production equipment for extruded composite smooth aluminum sheathed cables, which solves the problem of insufficient uniform coating of hot melt adhesives in the high-voltage cables produced by wrinkled or flat aluminum sheathed high-voltage cable equipment and processes in the prior art , prone to problems of bowing or wrinkling

Method used

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  • Extruded composite smooth aluminum sleeve cable production equipment and a production method
  • Extruded composite smooth aluminum sleeve cable production equipment and a production method
  • Extruded composite smooth aluminum sleeve cable production equipment and a production method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0039] refer to figure 1 As shown, an extruded composite smooth aluminum sheathed cable production equipment includes a cable pay-off stand 1, an aluminum rod pay-off stand 2, a front traction device 3, an extruded aluminum sheath device 4, a wheel-type reducing device 5, a middle traction Device 31, preheating device 6, multi-layer co-extrusion device 7, cooling water tank 8, rear traction device 32, cable take-up device 9.

[0040]Wherein, a cable core disc is installed on the cable pay-off frame 1 for releasing the cable core. An aluminum rod disc is installed on the aluminum rod pay-off frame 2 for releasing the aluminum rod. The aluminum sheath extruding device 4 continuously extrudes the aluminum sheath so that the aluminum sheath covers the core of the high-voltage cable. The wheel-type reducing device 5 shrinks the aluminum sheath to the outer diameter of the process design, so that the extruded aluminum sheath is wrapped on the surface of the cable core as a whole. ...

Embodiment 2

[0050] A production method of an extruded composite smooth aluminum sheath cable is produced by using the production equipment for an extruded composite smooth aluminum sheath cable described in Embodiment 1, and its production process is as follows:

[0051] S1: Release the cable core from the cable core reel on the cable pay-off frame, and release the aluminum rod from the aluminum rod reel on the aluminum rod pay-off rack, then continuously extrude the aluminum sleeve through the aluminum sleeve extrusion device, so that the aluminum sleeve is covered on the high-voltage cable. Outside the core;

[0052] S2: The wheel-type reducing device shrinks the aluminum sheath to the outer diameter of the process design, so that the extruded aluminum sheath is wrapped on the surface of the cable core as a whole;

[0053] S3: heating the extruded aluminum sleeve through the preheating device;

[0054] S4: Laminate the aluminum sheath with hot melt adhesive, PE sheath, PVC sheath and c...

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Abstract

The invention discloses extruded composite smooth aluminum sleeve cable production equipment and a production method. The production equipment comprises an extruded aluminum sleeve device, a wheel type reducing device, a preheating device, a multi-layer co-extrusion device and a cooling water tank, and the extruded aluminum sleeve device continuously extrudes an aluminum sleeve; the cable coated with the aluminum sleeve passes through a shaft hole, and the aluminum sleeve is tightened to the outer diameter designed by the process by the wheel type reducing device, so that the whole aluminum sleeve is coated on the surface of the cable core; the preheating device is used for heating the aluminum sleeve; the multi-layer co-extrusion device is used for compounding the aluminum sleeve with thehot melt adhesive, a PE sheath, a PVC sheath and a conductive layer together and carrying out cooling molding through the cooling water tank. According to the hot melt adhesive extrusion technology designed by the invention, the hot melt adhesive not only achieves an anti-corrosion effect, but also achieves a bonding effect, so that the PE sheath, the PVC sheath, the conductive layer and the smooth aluminum sheath of the cable are firmly bonded together, and the phenomena of arching or wrinkling cannot be generated during bending, take-up and construction of the cable.

Description

technical field [0001] The invention relates to high-voltage cable production technology. Background technique [0002] In the existing corrugated aluminum-sheathed high-voltage cables, during the rolling process of the corrugated aluminum sheath, there is a certain gap between the aluminum sheath and the buffer layer, and the size of the gap is controlled according to the process. [0003] According to the existing corrugated aluminum sheath high-voltage cable process control regulations, the gap between the aluminum sheath and the buffer zone is 0.5-1.0mm. In the production process, the buffer layer is in indirect contact with the cable outer shield and the corrugated aluminum sleeve, which belongs to point contact. The shallower the corrugation of the aluminum sleeve, the poorer the contact. The structure of the semi-conductive buffer layer is composed of a layer of semi-conductive non-woven fabric and a layer of semi-conductive fluffy cotton with a thickness of about 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/24H01B7/20
CPCH01B7/205H01B13/24H01B13/245
Inventor 金金元朱水良钱朝辉姚叶军岳振国盛雪良朱惠莲
Owner ZHEJIANG CHENGUANG CABLE CO LTD
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