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A rod-shaped suspension porcelain composite insulator for railways and its manufacturing method

A ceramic composite insulator, rod-shaped suspension technology, applied in the direction of suspension/strain insulator, insulator, circuit, etc., can solve the problems of affecting driving safety, small creepage distance, short electrical clearance, etc., to increase creepage distance, The effect of increasing creepage distance and saving maintenance costs

Active Publication Date: 2017-11-03
JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the suspended porcelain insulators operating in various high-speed railway lines in my country have a breakdown-type structure, small creepage distance, and short electrical gap. With the aggravation of environmental pollution, flashovers are prone to occur, and even breakdown and disconnection accidents occur. , seriously affecting driving safety

Method used

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  • A rod-shaped suspension porcelain composite insulator for railways and its manufacturing method
  • A rod-shaped suspension porcelain composite insulator for railways and its manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A method for manufacturing a rod-shaped suspension porcelain composite insulator for railways, comprising the following steps:

[0028] (1) Preparation of the porcelain rod insulator body: first prepare the base material of the porcelain rod insulator body, then add water with a total weight of 30% of the base material to the base material to obtain a slurry, ball mill the slurry for 12 hours to obtain a new slurry, and then After the new slurry is sieved and iron removed, the mud is squeezed, and the obtained mud cake is extruded in a vacuum mud refiner, and the extruded mud section is then dried by electric shade, and finally shaped and dried to obtain a green body. Glaze, sand, and fire to obtain a porcelain rod insulator body; the base material of the porcelain rod insulator body includes the following components, and the parts by weight of each component are: 5 parts of clay, 40 parts of industrial alumina, camphor 8 parts of village soil, 13 parts of Jingyang soil...

Embodiment 2

[0034] It is basically the same as Example 1, except that the base material of the porcelain rod insulator body includes the following components, and the parts by weight of each component are: 6 parts of clay, 45 parts of industrial alumina, Zhangcun soil 5 parts, 7 parts of Jingyang soil, 5 parts of Zuoyun soil, 16 parts of Qingcaoling, 20 parts of white clay, 15 parts of feldspar, 1 part of Ninghai soil, 6 parts of Xinhui soil; Portland cement glue includes the following parts by weight Components: 4 parts of superfine silica fume powder with a particle size of 0.2 μm, 52 parts of cement, 22 parts of quartz sand, 3 parts of mica powder, 3 parts of Simon600 early-strength and fast-setting polycarboxylate superplasticizer, 13 parts of water Parts; in step (3), spray silane coupling agent on the surface of the semi-finished product, and then heat it in an oven with a temperature of 40 ° C; in step (4), after the high-temperature vulcanized silicone rubber fills the mold cavity ...

Embodiment 3

[0037] It is basically the same as Example 1, except that the base material of the porcelain rod insulator body includes the following components, and the parts by weight of each component are: 3 parts of clay, 35 parts of industrial alumina, Zhangcun soil 12 parts, 20 parts of Jingyang soil, 15 parts of Zuoyun soil, 7 parts of Qingcaoling, 11 parts of white clay, 5 parts of feldspar, 6 parts of Ninghai soil, 1 part of Xinhui soil; Portland cement glue includes the following weight parts Components: 6 parts of superfine silica fume powder with a particle size of 0.3 μm, 45 parts of cement, 25 parts of quartz sand, 1 part of mica powder, 2 parts of Simon600 early-strength and fast-setting polycarboxylate superplasticizer, 10 parts of water part; in step (3), spray silane coupling agent on the surface of the semi-finished product, and then heat it in an oven with a temperature of 60 ° C; in step (4), after the silicone rubber fills the mold cavity space, it is heated at 180 ° C a...

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Abstract

The invention discloses a rod-shaped suspension type composite insulator for railway. The rod-shaped suspension type composite insulator comprises a ceramic rod insulator body, fitting accessories and an external insulation umbrella skin sheath, wherein the fitting accessories are arranged at the two ends of the insulator body by adhesives, the external insulation umbrella skin sheath sleeves the ceramic rod insulator body and is overlapped with the fitting accessories, and the external insulation umbrella skin sheath comprises large umbrellas and small umbrellas and is formed according to a sequence that the large umbrella is arranged and then the small umbrella is arranged from top to bottom. The rod-shaped suspension type composite insulator has the advantages that the creep distance and the dry arcing distance are increased, the creep distance is increased by around 50%, the dry arcing distance is increased, the pollution flashover frequency is reduced, and the probability of a flashover accident occurring in the railway is reduced; an integral injection molding production process is used for production, an umbrella sleeve is attractive in appearance and is few in interface, a core rod and the sheath are bonded firmly without a gap, the rod-shaped suspension type composite insulator is high in internal insulation performance, and a phenomenon of interface breakdown is prevented.

Description

technical field [0001] The invention belongs to the field of porcelain composite insulators, and in particular relates to a rod-shaped suspended porcelain composite insulator for railways and a manufacturing method thereof. Background technique [0002] At present, the suspended porcelain insulators operating in various high-speed railway lines in my country have a breakdown-type structure, small creepage distance, and short electrical gap. With the aggravation of environmental pollution, flashovers are prone to occur, and even breakdown and disconnection accidents occur. , seriously affecting driving safety. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a rod-shaped suspension porcelain composite insulator with stable mechanical properties, good antifouling ability and better electrical properties and its manufacturing method. [0004] In order to achieve the above object, the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/04H01B17/38H01B17/42H01B19/00
CPCH01B17/04H01B17/38H01B17/42H01B19/00
Inventor 张营杨志峰刘少华谢从珍王根水王士维
Owner JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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