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Preparation method of glass powder for thick-film resistors

A technology of thick film resistors and glass powder, which is applied in the field of resistor slurry preparation, can solve the problems of poor stability of thick film resistors, and achieve good stability and uniform mixing effects

Inactive Publication Date: 2016-12-21
安徽斯迈尔电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the stability of thick film resistors is poor. If you want to improve its stability, you can start with the performance optimization of the three components of the resistor paste.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0011] A kind of preparation method of the glass powder that is used for thick-film resistor, take silicon dioxide 20, aluminum oxide 20, calcium oxide 15, molybdenum oxide 10, barium oxide 10 in parts by weight, and its specific preparation steps are:

[0012] (1) Put silica, alumina, calcium oxide, molybdenum oxide, and barium oxide in a V-shaped mixer and mix for 15 minutes, then put the mixture into a rod mill for preliminary crushing;

[0013] (2) Put the preliminarily crushed mixture in step (1) into a crucible, put it into an electric melting furnace for melting, set the initial melting temperature to 300°C for preheating for 30 minutes, and then raise the temperature to 800°C for 30 minutes of melting, Finally, the temperature was raised to 1500°C for 3 hours of continuous smelting;

[0014] (3) Put the mixed material smelted out of the furnace in step (2) into water for water quenching. After water quenching, put the mixed material in a ball mill, and add water of the...

specific Embodiment 2

[0015] A kind of preparation method of the glass powder that is used for thick-film resistance, takes silicon dioxide 30, aluminum oxide 30, calcium oxide 20, molybdenum oxide 15, barium oxide 15 in parts by weight, and its specific preparation steps are:

[0016] (1) Put silica, alumina, calcium oxide, molybdenum oxide, and barium oxide in a V-shaped mixer and mix for 20 minutes, then put the mixture into a rod mill for preliminary crushing;

[0017] (2) Put the preliminarily crushed mixture in step (1) into a crucible, put it into an electric melting furnace for melting, set the initial melting temperature at 400°C for 30 minutes of preheating, and then increase the temperature to 1000°C for 30 minutes of melting, Finally, the temperature was raised to 1600°C for 4 hours of continuous smelting;

[0018] (3) Put the mixture smelted out of the furnace in step (2) into water for water quenching. After water quenching, put the mixture into a ball mill, and add water of the same ...

specific Embodiment 3

[0019] A kind of preparation method of the glass powder that is used for thick-film resistance, take silicon dioxide 25, aluminum oxide 25, calcium oxide 18, molybdenum oxide 12, barium oxide 12 in parts by weight, and its specific preparation steps are:

[0020] (1) Put silica, alumina, calcium oxide, molybdenum oxide, and barium oxide in a V-shaped mixer and mix for 18 minutes, then put the mixture into a rod mill for preliminary crushing;

[0021] (2) Put the preliminarily pulverized mixture in step (1) into a crucible, put it into an electric melting furnace for melting, set the initial melting temperature at 350°C for preheating for 30 minutes, and then raise the temperature to 900°C for 30 minutes of melting, Finally, the temperature was raised to 1550°C for 3.5 hours of continuous melting;

[0022] (3) Put the mixed material smelted out of the furnace in step (2) into water for water quenching. After water quenching, put the mixed material in a ball mill, and add water ...

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PUM

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Abstract

The invention discloses a preparation method of glass powder for thick-film resistors. The preparation method includes steps: (1) adding silicon dioxide, aluminum oxide, calcium oxide, molybdenum oxide and barium oxide into a V-shaped mixing machine, mixing, and adding into a rod mill for preliminary grinding; (2) adding mixed materials into a crucible, and putting into an electric melting furnace for smelting; (3) adding smelted mixed materials into water to realize water quenching, adding the mixed materials subjected to water quenching into a ball mill, adding water for ball milling, and drying the mixed materials after ball milling. The preparation method of the glass powder for the thick-film resistors has advantages that processes of preliminary grinding and staged melting are set up, components of the glass powder can be mixed more uniformly, and consequently the prepared thick-film resistors can be higher in stability in long-term utilization.

Description

technical field [0001] The invention relates to the technical field of resistance slurry preparation, in particular to a method for preparing glass powder for thick film resistance. Background technique [0002] Thick film resistors rely on the contact between particles in a glass matrix to form a resistor. These contacts form a complete resistance, but thermal strain in operation interrupts the contacts. Due to parallel connection in most cases, thick film resistors will not open circuit, but the resistance value will continue to increase with time and temperature. Therefore, the stability of thick film resistors is poor. If you want to improve its stability, you can start with the performance optimization of the three components of the resistor paste. The resistance paste is mainly composed of three parts: organic carrier material, glass phase and conductive phase. The organic carrier material can make the slurry obtain better fluid performance as a whole, so as to facil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C12/00
CPCC03C12/00
Inventor 曹维常
Owner 安徽斯迈尔电子科技有限公司