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Zinc oxide lightning protection chip and preparation method thereof

A technology of zinc oxide and chips, which is applied in the field of zinc oxide lightning protection chips and its preparation, can solve the problems of leakage current and high residual voltage, and achieve the effects of low residual voltage, good lightning protection, and strong resistance to degradation

Inactive Publication Date: 2017-01-04
TIANJIN RUNGENG ELECTRICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the varistors currently used in voltage-limiting surge protectors all have problems of high leakage current and residual voltage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In the embodiment of the present invention, a zinc oxide lightning protection chip is composed of 23 parts of zinc oxide, 3 parts of magnesium oxide, 6 parts of manganese dioxide, 5 parts of titanium oxide, 27 parts of bismuth trioxide, Composed of 2 parts of barium oxide, 4 parts of strontium oxide and 30 parts of antimony pentoxide.

[0025] The preparation method of the zinc oxide lightning protection chip comprises the following steps:

[0026] (1) Ingredients: take analytically pure raw materials, dry them, weigh zinc oxide, magnesium oxide, manganese dioxide, titanium oxide, bismuth trioxide, barium oxide, strontium oxide and Antimony pentoxide, mixed evenly to obtain mixed powder;

[0027] (2) Primary ball milling: add deionized water as a dispersant to the mixed powder prepared in step (1), and perform ball milling for 8 hours;

[0028] (3) Drying: put the mixed powder after ball milling in step (2) into an oven at a temperature of 95°C for 4 hours;

[0029] ...

Embodiment 2

[0036] In the embodiment of the present invention, a zinc oxide lightning protection chip is composed of 25 parts of zinc oxide, 2 parts of magnesium oxide, 5 parts of manganese dioxide, 4 parts of titanium oxide, 24 parts of bismuth trioxide, It consists of 3 parts of barium oxide, 5 parts of strontium oxide and 32 parts of antimony pentoxide.

[0037] The preparation method of the zinc oxide lightning protection chip comprises the following steps:

[0038] (1) Ingredients: take analytically pure raw materials, dry them, weigh zinc oxide, magnesium oxide, manganese dioxide, titanium oxide, bismuth trioxide, barium oxide, strontium oxide and Antimony pentoxide, mixed evenly to obtain mixed powder;

[0039] (2) Primary ball milling: add deionized water as a dispersant to the mixed powder prepared in step (1), and perform ball milling for 10 hours;

[0040] (3) Drying: Put the mixed powder after ball milling in step (2) into an oven at a temperature of 90°C for 6 hours;

[00...

Embodiment 3

[0048] In the embodiment of the present invention, a zinc oxide lightning protection chip is composed of 28 parts of zinc oxide, 1 part of magnesium oxide, 3 parts of manganese dioxide, 3 parts of titanium oxide, 20 parts of bismuth trioxide, Composed of 4 parts of barium oxide, 6 parts of strontium oxide and 35 parts of antimony pentoxide.

[0049] The preparation method of the zinc oxide lightning protection chip comprises the following steps:

[0050] (1) Ingredients: take analytically pure raw materials, dry them, weigh zinc oxide, magnesium oxide, manganese dioxide, titanium oxide, bismuth trioxide, barium oxide, strontium oxide and Antimony pentoxide, mixed evenly to obtain mixed powder;

[0051] (2) Primary ball milling: Add deionized water as a dispersant to the mixed powder prepared in step (1), and perform ball milling for 12 hours;

[0052] (3) Drying: put the mixed powder after ball milling in step (2) into an oven at 85°C for 8 hours;

[0053] (4) Pre-calcination...

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Abstract

The invention discloses a zinc oxide lightning protection chip and a preparation method thereof. The zinc oxide lightning protection chip is composed of the following raw materials in parts by weight: 23-28 parts of zinc oxide, 1-3 parts of magnesium oxide, 3-6 parts of manganese dioxide, 3-5 parts of titanium oxide, 20-27 parts of bismuth trioxide, 2-4 parts of barium oxide, 4-6 parts of strontium oxide and 30-35 parts of antimony pentoxide; and the zinc oxide lightning protection chip is prepared from the steps of burdening, primary ball milling, drying, pre-sintering, secondary ball milling, drying, prilling, sintering and silver plating. The zinc oxide lightning protection chip prepared from the preparation method disclosed by the invention has the advantages of low leakage current, low residual voltage, strong degradation resistance, impact resistance and the like; and the zinc oxide lightning protection chip can be widely used in surge protection devices for lightning protection, and has a relatively good lightning protection effect.

Description

technical field [0001] The invention relates to the technical field of lightning protection, in particular to a zinc oxide lightning protection chip and a preparation method thereof. Background technique [0002] The zinc oxide lightning protection chip is composed of a varistor ceramic chip, an upper electrode piece and a lower electrode piece respectively fixed on the surface and back of the varistor ceramic chip. Varistor ceramic chips have the advantages of high nonlinear coefficient, large current flow and high energy bearing capacity, so they are widely used as lightning surge protection components in electronic circuits and power systems. However, the current varistors used in voltage-limiting surge protectors all have problems of high leakage current and residual voltage. Contents of the invention [0003] The purpose of the present invention is to provide a zinc oxide lightning protection chip with small leakage current, low residual voltage value, strong resista...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/453C04B35/622
Inventor 杨锦月
Owner TIANJIN RUNGENG ELECTRICAL EQUIP
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