A kind of manufacturing method of ceramic capacitor

A manufacturing method and technology of capacitors, which are applied to the parts of fixed capacitors, fixed capacitor dielectrics, etc., can solve the problems of direct cost and use cost increase, abnormal increase, product thickness increase, etc., and achieve excellent electric strength and moderate electric field Strength, the effect of improving the electric strength

Active Publication Date: 2017-12-12
无锡隆傲电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, it is not difficult to see: firstly, the substantial increase in product thickness not only greatly increases the product volume, but also greatly increases the direct cost and use cost; secondly, due to the substantial increase in product volume, the resulting Various defects increase by orders of magnitude, leading to an increase in the probability of abnormalities in the product life test

Method used

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  • A kind of manufacturing method of ceramic capacitor
  • A kind of manufacturing method of ceramic capacitor
  • A kind of manufacturing method of ceramic capacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh SnO 2 Powder 792g and Sb 2 o 3 208g of powder, add water and put it into the grinding equipment to grind for 12 hours, put the water-containing powder obtained by grinding into an oven to dry, then put the powder in a synthesis container, and put it in a high-temperature furnace with a temperature of 1120-1180°C for 2 hours. Synthesize, and pass through a 120-mesh sieve to obtain ceramic powder. Weigh again PbO powder 1386g, B 2 o 3 Powder 189g and SiO 2 Put 525g of powder into the mixing equipment for dry mixing for 7.5-8.5 hours, put the mixed material into a melting container, put it into a high-temperature furnace with a temperature of 1210-1250°C for melting, and keep it warm for 0.5 hours to obtain molten glass The molten glass liquid is quickly taken out of the furnace and poured out for cooling or poured into the liquid and quenched to form glass particles, then the glass particles are added to water and placed in the grinding equipment for grinding f...

Embodiment 2

[0034] Weigh SnO 2 Powder 915g and Sb 2 o 3 Add 85g of powder, add water and put it into the grinding equipment to grind for 12 hours, put the water-containing powder obtained by grinding into an oven to dry, then put the powder in a synthesis container, and put it in a high-temperature furnace with a temperature of 1120-1180°C for 2 hours. Synthesize, and pass through a 120-mesh sieve to obtain ceramic powder. Weigh again PbO powder 2404g, B 2 o 3 Powder 84g and SiO 2 Put 308g of powder into the mixing equipment for dry mixing for 7.5-8.5 hours, put the mixed material into a melting container, put it into a high-temperature furnace with a temperature of 1210-1250°C for melting, and keep it warm for 0.5 hours to obtain molten glass The molten glass liquid is quickly taken out of the furnace and poured out for cooling or poured into the liquid and quenched to form glass particles, then the glass particles are added to water and placed in the grinding equipment for grinding...

Embodiment 3

[0036] Weigh SnO 2 Powder 850g and Sb 2 o 3 Add 150g of powder, add water and put it into the grinding equipment for grinding for 12 hours, put the water-containing powder obtained by grinding into an oven to dry, then put the powder in a synthesis container, and put it in a high-temperature furnace with a temperature of 1120-1180°C for 2 hours. Synthesize, and pass through a 120-mesh sieve to obtain ceramic powder. Weigh again PbO powder 1875g, B 2 o 3 Powder 125g and SiO 2Put 500g of powder into the mixing equipment for dry mixing for 7.5-8.5 hours, put the mixed material into a melting container, put it into a high-temperature furnace with a temperature of 1210-1250°C for melting, and keep it warm for 0.5 hours to obtain molten glass The molten glass liquid is quickly taken out of the furnace and poured out for cooling or poured into the liquid and quenched to form glass particles, then the glass particles are added to water and placed in the grinding equipment for gri...

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Abstract

The invention discloses a semiconducting glass glaze capable of significantly improving the annihilation breakdown performance of an ultra-high voltage ceramic capacitor and a method for preparing and using the semiconducting glass glaze slurry including ceramic powder, glass glaze powder, terpineol and ethyl alcohol. Base cellulose, wherein the weight of glass glaze powder is 2.1-2,8 times the weight of ceramic powder; the weight of terpineol is 28%-31% of the weight of glass glaze powder; the weight of ethyl cellulose is glass glaze powder 5%-6% by weight; ceramic powder is made of 79.2%-91.5% SnO2 powder and 8.5%-20.8% Sb2O3 through sintering, grinding and sieving; glass glaze powder is made of 66%- 86% PbO powder, 3%-9% B2O3 powder and 11%-25% SiO2 powder are prepared by sintering, grinding and sieving. When preparing a high-voltage ceramic capacitor, it includes coating and firing the above-mentioned semiconductor glass glaze slurry. After coating and firing the semiconductor glass glaze slurry, the electrical breakdown field strength of the high-voltage ceramic capacitor can be significantly improved.

Description

technical field [0001] The invention relates to a semiconductor glass glaze slurry, a high-voltage ceramic capacitor using the semiconductor glass glaze slurry, and a method for manufacturing a high-voltage ceramic capacitor. Background technique [0002] At present, the anti-electrical breakdown field strength of existing domestic high-voltage and ultra-high-voltage ceramic capacitors (electrical breakdown field strength = breakdown voltage / product thickness) is 3-6KVDC / mm, and it is: the thinner the product, the better the anti-electrical breakdown field strength. The lower the field strength. The reason is mainly that under the premise that the product formula and preparation process are normal, the only effective way to increase the breakdown field strength of the product is to greatly increase the thickness of the product. [0003] However, from the failure products of the above-mentioned products after the electric breakdown field strength test, it is easy to find tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/00H01G4/12
Inventor 吴纪梁吴頔居涌
Owner 无锡隆傲电子有限公司
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