Fabrication process of cross-linked polyolefin insulation power cable

A cross-linked polyolefin and power cable technology, which is applied in the manufacture of cables/conductors, insulation of conductors/cables, circuits, etc., can solve problems such as high energy consumption, obstacles to market competitiveness, and large power consumption

Inactive Publication Date: 2013-08-14
SHANDONG HUADONG CABLE GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In general, traditionally, the production of power cables is based on the cast aluminum heating system of the extruder, which consumes a lot of electricity, consumes a lot of energy, has a lon

Method used

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  • Fabrication process of cross-linked polyolefin insulation power cable
  • Fabrication process of cross-linked polyolefin insulation power cable
  • Fabrication process of cross-linked polyolefin insulation power cable

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Embodiment Construction

[0027] The manufacturing process of the cross-linked polyolefin insulated power cable of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] The manufacturing process of the cross-linked polyolefin insulated power cable of the present invention is as follows: cable conductor unwinding—upward traction—extruder electromagnetic heating and extruding insulation—when the main box of the crosslinking equipment is irradiated by ultraviolet light, the polyolefin Add an appropriate amount of photocrosslinking sensitizer to the base resin, and utilize the property that the polyolefin material is in a transparent state when heated and extruded to focus and transmit ultraviolet light radiation into the material, and the high-energy ultraviolet light triggers the photocrosslinking sensitizer to form freely Radicals and further induce polyolefin units to generate macromolecular free radicals, and the free radicals form cross-linked ...

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Abstract

The invention provides a fabrication process of a cross-linked polyolefin insulation power cable, and belongs to the technical field of power cable manufacturing. The technological process comprises the steps that cable conductor paying-off is performed; upward traction is performed; heating extrusion insulation is performed by a plastic extruding machine with an electromagnetic method; when a main body box of cross-linked equipment is irradiated by ultraviolet light, defined amount of a photo-crosslinking sensitizer is added into a polyolefin-based resin, the characteristic that the polyolefin material is in a transparent state during heating extrusion is used to focus the ultraviolet light irradiation and transmit into the material, the high-energy ultraviolet light triggers the photo-crosslinking sensitizer to form free radicals and further induces a polyolefin unit to generate macromolecular free radicals, and the cross-linked polyolefin material is formed through a bonding function between the free radicals; the cross-linked polyolefin material enters a water tank for sizing and cooling; checking out is performed by an electric discharge machine; downward traction is performed; and wire gathering and laying is performed. The process replaces the traditional silane cross-linked polyethylene insulation power cable, is energy-saving, shortens the production cycle of the cable, saves the production cost, and increases the market competitiveness.

Description

technical field [0001] The invention relates to the technical field of power cable production and manufacturing, in particular to a manufacturing process of cross-linked polyolefin insulated power cables. Background technique [0002] In general, traditionally, the production of power cables is based on the cast aluminum heating system of the extruder, which consumes a lot of electricity, consumes a lot of energy, has a long cable production cycle, relatively high production costs, and is greatly hindered in terms of market competitiveness. There is no advantage in the stability of production speed and product quality. Contents of the invention [0003] The technical task of the present invention is to solve the deficiencies of the prior art and provide a manufacturing process for cross-linked polyolefin insulated power cables. [0004] The technical solution of the present invention is realized in the following manner. The production process of the cross-linked polyolefi...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B13/14
Inventor 苏京进张寿敏赵如海李树海周荣柱徐茂伟
Owner SHANDONG HUADONG CABLE GROUP
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