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Cable insulation layer and making method thereof

A manufacturing method and insulating layer technology, applied to rubber insulators, organic insulators, plastic/resin/wax insulators, etc., can solve the problems of high price and high cost of insulating layers

Inactive Publication Date: 2014-01-01
HYDRAULIC MACHINERY PLANT SHANXI PROV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in related technologies, due to the high price of ethylene-propylene rubber, the cost of the insulating layer made of ethylene-propylene rubber as the main material is correspondingly high; An insulating layer with lower material cost is a technical problem to be solved urgently in this field

Method used

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  • Cable insulation layer and making method thereof

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Embodiment 2

[0022] Please refer to figure 2 , in this embodiment, the manufacturing method of the insulating layer of the cable includes the following steps.

[0023] Step 201: Calcining coal gangue particles at a temperature of 800-900°C to obtain calcined powder with a moisture content of less than 2%;

[0024] The coal gangue particles are calcined to maximize the evaporation of the moisture contained in them, and during the calcining process, it can be achieved by using a suspension calciner when the calcining process is at 800-900°C (preferably 850°C). The purpose of calcination is to remove the crystallization water in the lattice of coal gangue particles through high temperature, volatilize organic matter, make the pores in the structure open, and improve the adsorption force and activity. Specifically, the water content of coal gangue particles after calcination is lower than 2%; preferably, the calcination time is 100-150 minutes.

[0025] Step 202: adding the calcined powder ...

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Abstract

The invention relates to the cable field, and especially relates to a cable insulation layer and a making method thereof. The making method of the cable insulation layer comprises the following steps: adding a modifier to gangue particles to modify the gangue particles in order to change the hydrophilicity of the gangue particles to lipophilicity; mixing the modified gangue particles with a rubber-plastic elastomer, and stirring to obtain a first mixed material; adding the modifier, a lubricant, a heat stabilizer, a vulcanizing agent and stearic acid to the first mixed material to obtain a second mixed material; and sequentially carrying out internal mixing and open milling of the second mixture to obtain the cable insulation layer. The main components comprising the gangue particles and the rubber-plastic elastomer of the cable insulation layer have low prices, so the cost of the made cable insulation layer is low, thereby the cable insulation layer has the advantages of guaranteed insulation performance and low material cost.

Description

technical field [0001] The invention relates to the field of cables, in particular to an insulating layer of cables and a manufacturing method thereof. Background technique [0002] At present, the insulation layer of common cables is mostly made of ethylene-propylene rubber with EPDM rubber, binary ethylene-propylene rubber, modified ethylene-propylene rubber and thermoplastic ethylene-propylene rubber as the main components. [0003] However, in related technologies, due to the high price of ethylene-propylene rubber, the cost of the insulating layer made of ethylene-propylene rubber as the main material is correspondingly high; An insulating layer with low material cost is a technical problem to be solved urgently in this field. Contents of the invention [0004] The object of the present invention is to provide an insulating layer of a cable and a manufacturing method thereof, so as to solve the above-mentioned problems. [0005] An embodiment of the present inventio...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08L21/00C08K13/06C08K9/06C08K7/24C08K5/09H01B3/28H01B3/30
Inventor 侯新明旷天申畅吉庆孙爱生
Owner HYDRAULIC MACHINERY PLANT SHANXI PROV
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