Resistance paste with low voltage coefficient
A resistance paste, low voltage technology, applied in resistors, thick film resistors, conductive materials dispersed in non-conductive inorganic materials, etc., can solve problems such as product performance degradation, resistor resistance changes, etc., to improve Voltage coefficient, solving the effect of large voltage coefficient and ensuring the original performance
Active Publication Date: 2021-12-14
西安宏星电子浆料科技股份有限公司
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Problems solved by technology
Existing thick-film resistor pastes are applied to high-voltage resistors, and when used under ultra-high voltage, the resistance value of the resistor changes too much, causing the problem of product performance degradation
Method used
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[0013] In conjunction with the accompanying drawings and the following specific embodiments of the present invention will be described in detail, it does not play a role in defining the scope of the present invention. The scope of the present invention is defined only by the claims, any omitted skilled artisan on the basis of the disclosed embodiment of the present invention made, substitutions or modifications are intended to fall within the scope of the present invention.
[0014] 1, selected conductive powder: specific surface area of ruthenium dioxide 15 ~ 35m 2 / G, a specific surface area of lead ruthenate 2 ~ 7m 2 / g.
[0015] 2, a lead borosilicate glass powder prepared: a mass percentage PbO 45%, SiO 2 23%, BaCO 3 12%, Al 2 O 3 4%, B 2 O 3 After 7%, ZnO 9% starting material was weighed, various raw materials were mixed uniformly, the resulting mixture was placed in a melting furnace for melting 1350 deg.] C, holding time 2h, the resulting solution was subjected to wa...
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Abstract
The invention discloses a resistance paste with low voltage coefficient. The resistance paste comprises the following components in percentage by mass: 10-35% of conductive powder, 35-55% of a glass binding phase, 1-10% of an additive and 30-35% of an organic carrier, wherein the conductive powder is at least one of ruthenium dioxide and lead ruthenate, and the glass binding phase is lead barium titanate composite lead borosilicate glass prepared by calcining raw materials for 20-25 hours at the temperature of 950+ / -10 DEG C in a pure oxygen atmosphere. The lead barium titanate composite lead borosilicate glass is adopted as the glass binding phase, and the voltage coefficient property of a resistor is adjusted, so that the resistance paste has the advantages of small voltage coefficient, and the use requirement of a high-voltage resistor product can be met.
Description
technical field [0001] The invention belongs to the technical field of resistance paste, and in particular relates to resistance paste with small voltage coefficient applied to high-voltage resistors. Background technique [0002] Thick film resistor paste is a technology-intensive product integrating metallurgy, chemistry, materials, electronic technology, analysis and testing technology and other multi-disciplinary fields. In order to adapt to printing, sintering process requirements and practical application requirements, it must have printability, functional characteristics and process compatibility. The commonly used resistance paste is a kind of paste made by mixing functional phase, binder phase, additives and organic vehicle in a certain proportion. [0003] It is generally used in high-voltage resistors in high-voltage and ultra-high-voltage transmission line devices. The resistor paste used is a special thick-film resistor paste. The square resistance of the resis...
Claims
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IPC IPC(8): H01B1/14H01B1/20H01C7/00
CPCH01B1/14H01B1/20H01C7/003
Inventor 鹿宁王妮张建益王顺顺王博陈向红曾逸飞
Owner 西安宏星电子浆料科技股份有限公司