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Formula and manufacturing process of slurry

A production process and slurry technology, which is applied in the direction of electrical components, insulators, circuits, etc., can solve the problems of cracking of resistance sheet performance, large difference in expansion coefficient, and falling off of valve sheets, and achieve high uniformity

Inactive Publication Date: 2017-03-08
NANTONG YUEDA KNITTING GARMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Epoxy glaze is composed of epoxy resin with good insulation performance and a certain amount of inorganic fillers, diluents, colorants, etc. It has good insulation performance; It is easy to produce defects such as microcracks, resulting in a decrease in insulation performance
Glass glaze has good insulation and stain resistance, and is an ideal side protection material. However, the expansion coefficient of glass glaze is inconsistent, and it is easy to crack or even fall off when the resistance sheet is subjected to a large current impact. In addition, according to environmental protection requirements, generally Lead-free glass glaze is used, and the sintering temperature of most lead-free glass glazes is higher than the heat treatment temperature of the resistor, which leads to cracking of the performance of the resistor and limits the scope of application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A slurry formulation comprising silicon oxide, zinc oxide, bismuth oxide, chromium oxide and antimony oxide, the mass percentages of silicon oxide, zinc oxide, bismuth oxide, chromium oxide and antimony oxide are respectively: silicon oxide 15.5%, zinc oxide 38%, bismuth oxide 20%, chromium oxide 8%, antimony oxide 14%.

[0017] A preparation process of slurry, comprising the following steps:

[0018] (1) Weigh a total of 1000g of each raw material according to the weight percentage of the formula, and pour the prepared mixed ingredients into the porcelain spherical cylinder;

[0019] (2) Take the polyvinyl alcohol glue according to the weight ratio of the ingredients: polyvinyl alcohol glue = 1:0.6, and pour the polyvinyl alcohol glue into the porcelain spherical tube;

[0020] (3) According to the ingredients: defoamer = 1000g: 1ml mass volume ratio of defoamer, and defoamer organosiloxane drops into the porcelain spherical cylinder;

[0021] (4) Seal the porcelain ...

Embodiment 2

[0023] A slurry formulation comprising silicon oxide, zinc oxide, bismuth oxide, chromium oxide and antimony oxide, the mass percentages of silicon oxide, zinc oxide, bismuth oxide, chromium oxide and antimony oxide are respectively: silicon oxide 18.5%, zinc oxide 32.5%, bismuth oxide 25%, chromium oxide 14%, antimony oxide 17.5%.

[0024] A preparation process of slurry, comprising the following steps:

[0025] (1) Weigh a total of 1000g of each raw material according to the weight percentage of the formula, and pour the prepared mixed ingredients into the porcelain spherical cylinder;

[0026] (2) According to the ingredients: polyvinyl alcohol glue = 1: 0.9 weight ratio, weigh the polyvinyl alcohol glue, and pour the polyvinyl alcohol glue into the porcelain spherical tube;

[0027] (3) According to the ingredients: defoamer = 1000g: 2ml mass volume ratio of defoamer, and defoamer organosiloxane drops into the porcelain spherical cylinder;

[0028] (4) Seal the porcelain...

Embodiment 3

[0030] A slurry formulation comprising silicon oxide, zinc oxide, bismuth oxide, chromium oxide and antimony oxide, the mass percentages of silicon oxide, zinc oxide, bismuth oxide, chromium oxide and antimony oxide are respectively: silicon oxide 16.5%, zinc oxide 35.2%, bismuth oxide 22.5%, chromium oxide 11%, antimony oxide 16.8%.

[0031] A preparation process of slurry, comprising the following steps:

[0032] (1) Weigh a total of 1000g of each raw material according to the weight percentage of the formula, and pour the prepared mixed ingredients into the porcelain spherical cylinder;

[0033] (2) According to the ingredients: polyvinyl alcohol glue = 1:0.8 weight ratio, weigh the polyvinyl alcohol glue, and pour the polyvinyl alcohol glue into the porcelain spherical tube;

[0034] (3) According to the ingredients: defoamer = 1000g: 1.5ml mass volume ratio of the defoamer, and drop the defoamer organosiloxane into the porcelain spherical cylinder;

[0035] (4) Seal the...

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PUM

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Abstract

The invention discloses a formula of slurry. The formula of the slurry is characterized by comprising the components based on mass percentage: 15.5-18.5% of silicon oxide, 32.5-38% of zinc oxide, 20-25% of bismuth oxide, 8-14% of chromium oxide and 14-17.5% of antimony oxide. The formula of the slurry has the advantages as follows: through reasonable matching of percentage contents of each raw material, the prepared slurry is high in uniformity and fluidity, and the current tolerance level of a resistive sheet can be greatly improved.

Description

technical field [0001] The invention relates to an inorganic non-metallic material and its products, in particular to a slurry [0002] Recipe and its production process. Background technique [0003] Zinc oxide resistors have very superior nonlinear characteristics, and are widely used in power systems as the core component of lightning arresters to protect electrical equipment from overvoltage damage such as lightning. In recent years, with the development of the economy, the requirements for transport capacitance and voltage have been continuously improved, and the requirements for the safety and reliability of power transmission and transformation equipment have also become higher and higher. Therefore, the operation safety and reliability of metal oxide arresters, Light weight and volume miniaturization put forward higher requirements. [0004] Due to the insufficient insulation strength of the side of the existing zinc oxide resistor, side discharge phenomena such as...

Claims

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Application Information

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IPC IPC(8): H01B3/02H01B19/04
Inventor 卢兵
Owner NANTONG YUEDA KNITTING GARMENT