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Mold pressing production process for SMC (sheet molding compound) insulators

A production process and technology of insulators, applied in the field of molding production process of SMC insulators, can solve problems such as damage to the use and operating life of lines, defects in aging resistance, poor insulator strength, etc., and achieve superior electrical performance, low price, and electrical insulation performance. Good results

Inactive Publication Date: 2012-12-19
SHANDONG JINGUANG COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insulators play two basic roles in overhead transmission lines, namely supporting wires and preventing current from returning to the ground. These two functions must be guaranteed. Insulators should not fail due to various electromechanical stresses caused by changes in the environment and electrical load conditions. Otherwise, the insulator will not play a significant role, and it will damage the service life and operating life of the entire line
[0003] Existing insulators are generally made of glass, ceramics and rubber. Insulators made of glass and ceramics have the disadvantages of poor strength, high brittleness, and relatively monotonous color; while insulators made of rubber also have defects in aging resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] (1) Mixing: 220kg of unsaturated polyester resin and 140kg of saturated polyester resin are added to the mixing kettle, and then 650kg of aluminum hydroxide, 3kg of tert-butyl peroxybenzoate and 12kg of zinc stearate are put into the mixing tank. Stir and mix in the material kettle, and finally add 16kg of pigment, 8kg of phase separation inhibitor BYK-W972, 6.5kg of viscosity reducer BYK-W996 and 5.5kg of magnesium oxide into the mixing kettle, and mix well to obtain SMC resin paste;

[0033] (2) Scraping and doffing: use the film as a carrier to scrape and paste the SMC resin paste, and then use glass fiber for doffing;

[0034] (3) impregnation: use a roller press to impregnate the resin paste processed in step (2) by rolling;

[0035] (4) Thickening: The impregnated SMC resin paste is thickened for about 16 hours at 35°C to 38°C to obtain SMC sheets;

[0036] (5) Molding: The SMC sheet obtained in step (4) and the galvanized metal insulator core are compositely mol...

example 2

[0040] (1) Mixing: 220kg of unsaturated polyester resin and 90kg of polystyrene resin are added to the mixing kettle, and then 450kg of aluminum hydroxide, 3kg of tert-butyl peroxybenzoate and 12kg of zinc stearate are put into the mixing Stir and mix in the kettle, and finally add 10kg of pigment, 5.5kg of phase separation inhibitor BYK-W972, 3.5kg of viscosity reducer BYK-W996 and 3.5kg of magnesium oxide into the mixing kettle, and mix well to obtain SMC resin paste;

[0041] (2) Scraping and doffing: use the film as a carrier to scrape and paste the SMC resin paste, and then use glass fiber for doffing;

[0042] (3) impregnation: use a roller press to impregnate the resin paste processed in step (2) by rolling;

[0043] (4) Thickening: The impregnated SMC resin paste is thickened for about 16 hours at 35°C to 38°C to obtain SMC sheets;

[0044] (5) Molding: The SMC sheet obtained in step (4) and the galvanized metal insulator core are compositely formed in the mold under ...

example 3

[0048] (1) Mixing: Add 220kg of unsaturated polyester resin and 40kg of polyvinyl acetate into the mixing kettle, then put 550kg of aluminum hydroxide, 3kg of tert-butyl peroxybenzoate and 12kg of zinc stearate into the mixing Stir and mix in the kettle, and finally add 13kg of pigment, 7kg of phase separation inhibitor BYK-W972, 5kg of viscosity reducer BYK-W996 and 4kg of magnesium oxide into the mixing kettle, and mix well to obtain SMC resin paste;

[0049] (2) Scraping and doffing: use the film as a carrier to scrape and paste the SMC resin paste, and then use glass fiber for doffing;

[0050] (3) impregnation: use a roller press to impregnate the resin paste processed in step (2) by rolling;

[0051] (4) Thickening: The impregnated SMC resin paste is thickened for about 16 hours at 35°C to 38°C to obtain SMC sheets;

[0052] (5) Molding: The SMC sheet obtained in step (4) and the galvanized metal insulator core are compositely molded in the mold under high temperature a...

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Abstract

The invention discloses a mold pressing production process for SMC (sheet molding compound) insulator, and relates to a production process for insulators. The process includes using different matrix resin, packing and auxiliaries; manufacturing an SMC sheet with high insulating performance and flame retardant property by processes of mixing, paste scraping and doffing, impregnating and thickening; and then carrying out mold pressing and solidifying for the SMC sheet and an insulator core to obtain an SMC insulator product. The insulators produced by the method have the advantages of high product strength, good electric insulating performance, convenience in construction, excellent flame retardant property and ageing resistance and low cost.

Description

technical field [0001] The invention relates to a production process of an insulator, in particular to a molding production process of an SMC insulator. Background technique [0002] Insulators are special insulation controls that can play an important role in overhead transmission lines. Insulators play two basic roles in overhead transmission lines, namely supporting wires and preventing current from returning to the ground. These two functions must be guaranteed. Insulators should not fail due to various electromechanical stresses caused by changes in the environment and electrical load conditions. Otherwise, the insulator will not play a significant role, and it will damage the service life and operating life of the entire line. [0003] Existing insulators are generally made of glass, ceramics and rubber. Insulators made of glass and ceramics have the disadvantages of poor strength, high brittleness, and relatively monotonous color; while insulators made of rubber also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/00C08L67/06C08L25/06C08L67/00C08L31/04C08L23/06C08K3/22C08K7/14
Inventor 尹希亮
Owner SHANDONG JINGUANG COMPOSITE MATERIALS
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