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Formula of high-voltage insulation white glaze

A high-voltage insulation and white glaze technology, applied in the field of insulators or insulating objects, can solve the problems of poor resistance to rapid changes in cold and heat, low withstand voltage, uneven good and bad, etc., to improve the bending strength of porcelain, improve the resistance to cold and heat, glaze surface Smooth, delicate and bright effect

Inactive Publication Date: 2012-07-11
CHONGQING PIGEON ELECTRIC PORCELAIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the insulating white glazes produced in China are good and bad. The insulating white glazes produced by many manufacturers have rough glaze surfaces, low porcelain bending strength, low withstand voltage, and poor resistance to rapid changes in cold and heat. Some of them cannot even meet the requirements of GB8411 standards.

Method used

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Experimental program
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Effect test

Embodiment Construction

[0008] The formula of a high-voltage insulating white glaze of the present invention is mainly made of the following raw materials in each weight ratio: mainly made of the following raw materials in each weight ratio: 20-30 parts of potassium feldspar, 20-30 parts of quartz powder, Datong soil 8-15 parts, Dongsheng soil 6-12 parts, wollastonite 5-10 parts, forged talc 8-14 parts, spodumene 2-6 parts, billet 3-6%, barium carbonate 1-3 parts.

[0009] Wherein, the blank can be one or more of kaolin, clay, limestone, feldspar, and quartz.

[0010] Relevant index of the present invention is as follows:

[0011] 1. Measurement of bending strength

[0012] The material testing machine is equipped with two brackets for placing samples, and there is a pressure head for applying bending load in the middle of the two brackets. The surface of the indenter and the surface of the bracket should have a circular arc with a radius R of 5mm, and they should be kept smooth so that the frictio...

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Abstract

The invention discloses a formula of high-voltage insulation white glaze. The high-voltage insulation white glaze mainly comprises the following raw materials in part by weight: 20 to 30 parts of potash feldspar, 20 to 30 parts of quartz powder, 8 to 15 parts of Datong soil, 6 to 12 parts of Dongsheng soil, 5 to 10 parts of wollastonite, 8 to 14 parts of forged talc, 2 to 6 parts of spodumene, 3 to 6 parts of blank and 1 to 3 parts of barium carbonate. The glaze prepared according to the formula can greatly improve the cold and heat resistance, corrosion resistance and stain resistance of porcelain, and is flat, fine and smooth in glaze surface; the bending strength of the porcelain is improved by more than 30 percent, and the glazing bending strength is more than or equal to 235 Mpa; withstand voltage is more than or equal to 35kV / mm; the volume resistance coefficient is more than or equal to 10<14> omega.cm; the dielectric coefficient (50Hz, 20 DEG C) is more than or equal to 7.5; and cold and heat rapid change resistance (temperature difference) is more than 230 DEG C. All performance indexes reach or exceed the GB8411 standard requirement.

Description

technical field [0001] The invention belongs to the technical field of insulators or insulating objects with specially treated surfaces in order to maintain insulating performance, and in particular relates to a formula of high-voltage insulating white glaze. Background technique [0002] Insulating white glaze, suitable for all kinds of porcelain body, in order to prevent pollution, avoid the ignition current loss caused by the accumulation of fuel oil and grease, and at the same time use the thermal expansion difference between the body and the glaze to show the glaze compression of the body The pressure effect can improve the strength of the ceramic body. [0003] At present, the insulating white glazes produced in China are good and bad. The insulating white glazes produced by many manufacturers have rough glaze surfaces, low porcelain bending strength, low withstand voltage, and poor resistance to rapid changes in cold and heat. Some of them even fail to meet the requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/86
Inventor 陶轼
Owner CHONGQING PIGEON ELECTRIC PORCELAIN CO LTD
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