Isostatic pressing electrical porcelain blank formula with non-plasticity clay used as raw material

A plastic and electrostatic technology, which is applied in the field of electric porcelain manufacturing, can solve the problems of unstable product quality, easy moisture absorption and cracking of the green body, and high moisture content of the slurry, so as to improve the firing quality and the pass rate of the whole production process. Possibility of absorbing moisture and dropping umbrella, effect of reducing mud moisture

Inactive Publication Date: 2013-09-25
CHINA XD ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the use of plastic natural mineral raw materials in the existing conventional isostatic ceramic blank formula, some unfavorable factors are prone to occur during the production process, such as high moisture in the slurry, easy moisture absorption, cracking, drying, and firing shrinkage. Large, unstable product quality, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The formula of the isostatic electric porcelain blank without plastic clay raw material in this embodiment is: alumina, potassium feldspar, calcined clay, and sodium carboxymethylcellulose (CMC).

[0022] The composition ratio (wt%) of the above raw materials is 48.5:20.5:23.5:7.5.

[0023] Calcined clay is non-plastic clay that has been calcined.

Embodiment 2

[0025] The formula of the isostatic electric porcelain blank without plastic clay raw material in this embodiment is: alumina, albite feldspar, calcined clay, and polyvinyl alcohol.

[0026] The composition ratio (wt%) of the above raw materials is 50.2:21.5:20.0:8.3.

Embodiment 3

[0028] The formula of the isostatic electric porcelain blank without plastic clay raw material in this embodiment is: a mixture of alumina, anorthite, calcined clay, polyvinyl alcohol and sodium carboxymethyl cellulose.

[0029] The composition ratio (wt%) of the above raw materials is 48:25:22:5.

[0030] Calcined clay is plastic clay that has been calcined.

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PUM

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Abstract

The invention provides an isostatic pressing electrical porcelain blank formula with non-plasticity clay used as raw material. The formula comprises the following components, by weight, 48%-55% of alumina, 18%-25% of feldspar flux, 15%-25% of calcined clay and 5%-15% of viscous agents. The formula takes chemically-synthesized viscous agents as viscous materials to replace plastic clay used in existing ingredients. Therefore, the non-plasticity clay can be used to replace scarce plastic clay raw materials. The cost of blank materials is reduced. The dependence of isostatic pressing electrical porcelain blanks on one-off resources is reduced.

Description

technical field [0001] The invention belongs to the field of electric porcelain manufacturing and relates to the formula of an isostatic electric porcelain blank without plastic clay raw materials. Background technique [0002] With the continuous improvement of the voltage level of power transmission and transformation lines, the requirements for the large-scale development of electric porcelain products are increasing day by day, and the difficulty of product production is increasing. There is an urgent need for formula research to meet the constantly updated manufacturing process and product performance. [0003] At the same time, electric porcelain is made of natural minerals as raw materials, and clay raw materials are indispensable raw materials in traditional electric porcelain blanks. With the mining of mine resources in my country, disposable resources are becoming less and less, especially high-quality plastic clay raw materials are facing serious depletion. The pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/04
Inventor 李红宝沈骏刘宏烈
Owner CHINA XD ELECTRIC CO LTD
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