Formula of ceramic for insulator ceramic body and preparation method of the insulator ceramic body

A technology for insulators and porcelain bodies, applied in inorganic insulators, ceramics, etc., can solve the problems of prone to cracks, flashover accidents, and easy degradation of hydrophobicity.

Inactive Publication Date: 2011-11-16
SUZHOU AIJIAN ELECTRICAL PORCELAIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Insulators are widely used in the field of high-voltage power transmission. Insulators are responsible for ensuring sufficient insulation of wires, cross-arms, and towers. During operation, they need to bear the vertical load and horizontal tension of the wires, and also withstand the sun, rain, and climate change. Corrosion of chemical substances, therefore, insulators must not only have good electrical properties, but also have sufficient mechanical strength. According to the structure, insulators can be divided into support insulators, suspension insulators, anti-pollution insulators and bushing insulators. It can be divided into three categories: line insulators, substation support insulators and bushings. According to the material of insulators, there are currently ceramic, glass and organic composite insulators. The quality of insulators is very important to the transmission network. For ceramic insulators It is said that the quality of its porcelain body occupies an important position. The main task of the insulator is to provide insulation and support for high-voltage transmission lines. This task is mainly completed by the insulator porcelain body. There are strict requirements. The above-mentioned performances of existing insulators need to be improved, and cracks are more likely to occur, and the hydrophobic performance is easy to decrease, and breakdown and flashover accidents are prone to occur, and the service life is reduced and affects the safety of the power grid.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, a method for preparing an insulator porcelain body, comprising the following steps:

[0035] The first step, ingredients: according to the formula of ceramics for insulators, the weight percentage of each component is: feldspar powder 6%, kaolin 54%, bauxite 42% raw materials are mixed together;

[0036] The second step, milling: the mixed raw materials are milled with water in a mill to form fine mud;

[0037] The third step is to squeeze the mud: send the mud into the mud squeezer, and remove part of the water in the mud by pressure to make it into a mud cake;

[0038] The fourth step, dry in the shade: dry the mud cake naturally in the shade to further reduce the moisture;

[0039] The fifth step, forming: put the mud cake into the mold, and through the plastic molding method, the mud cake is shaped into a blank of the required shape under the action of external force;

[0040] The sixth step, drying: remove the mechanically bound moisture in the blan...

Embodiment 2

[0044] Embodiment 2, a method for preparing an insulator porcelain body, comprising the following steps:

[0045] The first step, ingredients: according to the formula of ceramics for insulators, mix the components by weight percentage: 6% feldspar powder, 54% clay, and 36% bauxite;

[0046] The second step, milling: the mixed raw materials are milled with water in a mill to form fine mud;

[0047] The third step is to squeeze the mud: send the mud into the mud squeezer, and remove part of the water in the mud by pressure to make it into a mud cake;

[0048] The fourth step, dry in the shade: dry the mud cake naturally in the shade to further reduce the moisture;

[0049] The fifth step, forming: put the mud cake into the mold, and through the plastic molding method, the mud cake is shaped into a blank of the required shape under the action of external force;

[0050] The sixth step, drying: remove the mechanically bound moisture in the blank by heating the air;

[0051] Th...

Embodiment 3

[0054] Embodiment 3, a method for preparing an insulator porcelain body, comprising the following steps:

[0055] The first step, ingredients: according to the formula of ceramics for insulators, mix the components by weight percentage: 8% feldspar powder, 54% clay, and 38% bauxite;

[0056] The second step, milling: the mixed raw materials are milled with water in a mill to form fine mud;

[0057] The third step is to squeeze the mud: send the mud into the mud squeezer, and remove part of the water in the mud by pressure to make it into a mud cake;

[0058] The fourth step, dry in the shade: dry the mud cake naturally in the shade to further reduce the moisture;

[0059] The fifth step, forming: put the mud cake into the mold, and through the plastic molding method, the mud cake is shaped into a blank of the required shape under the action of external force;

[0060] The sixth step, drying: remove the mechanically bound moisture in the blank by heating the air;

[0061] Th...

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PUM

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Abstract

The invention discloses a formula of a ceramic for an insulator ceramic body and a preparation method of the insulator ceramic body. Beneficial effects of a technical scheme of the invention comprise that the formula contains specific proportions of silicon oxide and alumina and the silicon oxide and the alumina are sintered into mullite to improve a mechanical strength and a hot and cold performance of a ceramic material, and silica can reduce a dry degree, a firing shrinkage degree and a bending deflection degree of a ceramic blank, play a supportive role in a ceramic blank and improve a mechanical strength of a ceramic blank; alumina can improve greatly a mechanical strength of ceramic blank; added potassium dioxide can reduce a sintering temperature, fill gaps of a ceramic blank and improve a compactness of a ceramic material, and a mechanical strength and an electrical performance of a ceramic blank; and through a cooperation with a preparation method, an insulator ceramic body obtains improved greatly hydrophobic properties, anti-fouling properties, insulating properties and mechanical properties.

Description

technical field [0001] The invention relates to the field of high-voltage power transmission equipment manufacturing, in particular to a formula of ceramics for an insulator porcelain body and a preparation method for the insulator porcelain body. Background technique [0002] Insulators are widely used in the field of high-voltage power transmission. Insulators are responsible for ensuring sufficient insulation of wires, cross-arms, and towers. During operation, they need to bear the vertical load and horizontal tension of the wires, and also withstand the sun, rain, and climate change. Corrosion of chemical substances, therefore, insulators must not only have good electrical properties, but also have sufficient mechanical strength. According to the structure, insulators can be divided into support insulators, suspension insulators, anti-pollution insulators and bushing insulators. It can be divided into three categories: line insulators, substation support insulators and b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/18H01B3/12C04B35/622
Inventor 张俊明
Owner SUZHOU AIJIAN ELECTRICAL PORCELAIN
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