| Application Number: | 200410015588.4 | Application date: | 2004.03.08 |
| name: | Glass material and preparation method and application thereof | ||
| Public (announcement) number: | CN1559945 | Public (announcement) day: | 2005.01.05 |
| Main classification number: | C03C3/062 | The original application number of the division: | |
| Classification number: | C03C3/062; C03C3/076; C03C3/068; C03C3/083; C03C3/091; C03C3/095 | ||
| Award day: | priority: | ||
| Application (patent) person: | South China University of Technology; Guangzhou Xinri Electronics Co., Ltd. | ||
| address: | No. 381, Wushan Road, Tianhe District, Guangzhou, Guangdong, China | ||
| Invention (design) person: | Lu Ming; Su Xueyu; Zhong Mingfeng; solemn | International application: | |
| International announcement: | Enter country date: | ||
| Patent agency: | Guangzhou Yuegao Patent Agency Co., Ltd. | agent: | Lin Liming |
The invention discloses a lead-free low-temperature glass material used as a protective layer for a zinc oxide multilayer chip varistor and a preparation method thereof. The specific composition of the glass material of the invention is as follows: SiO2 content 30-50%, B2O3 content 20-35%, Al2O3 content 5-17 wt%, RO content 0-15 wt%, R2O content 5-15%, rare earth oxidation The content of the substance is from 0.5 to 1.5%. The glass material of the invention has high transparency, good chemical stability, and the operating temperature is not higher than 700 ° C, which fully meets the requirements of the protective layer of the multilayer ZnO varistor, and solves the problem that the traditional lead glass is harmful to the human body. Defects such as serious environmental pollution.
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