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Rare earth electrode slurry of rare earth thick film circuit based on metal plate and its preparation technology

A technology of rare earth electrode paste and metal substrate, applied in the direction of ohmic resistance electrodes, circuits, conductive materials dispersed in non-conductive inorganic materials, etc., can solve technology cost, quality cost, product quality, application range limitation, resistance paste Poor stability, low efficiency of medium slurry preparation, etc., to achieve excellent wettability and compatibility, intermolecular bonding strength and process improvement, and improve product yield

Active Publication Date: 2009-06-10
GUANGDONGSHENG YUCHEN ELECTRONICS & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its technical cost, quality cost, product quality, and application range are all limited, especially the low preparation efficiency of dielectric slurry, poor electrical performance, wettability, poor stability of resistance slurry, high cost, and easy oxidation of electrode slurry , Silver ions are easy to migrate under high temperature, and the adhesion is not strong, which leads to the slow development of this technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment is a rare earth electrode paste for rare earth thick film circuits used in 1Cr15 (429#) series stainless steel substrates. The electrode slurry is composed of a solid phase component and an organic solvent carrier. The solid phase component includes silver palladium yttrium composite powder and glass-ceramic powder. The specific formula and process are as follows:

[0025] 1. Glass-ceramic formula: the weight ratio of the components of each oxide is: SiO 2 (28%), Al 2 o 3 (16%), CaO (14%), B 2 o 3 (7%), La 2 o 3 (5%), Bi 2 o 3 (22%), TiO 2 (5%), ZrO 2 (2%):

[0026] 2. Glass-ceramic smelting process: Melting temperature: 1350°C for 120 minutes, then quickly out of the furnace and quenched in water to obtain glass slag. The glass slag is ball-milled in a two-stage ball mill to prepare glass-ceramic powder with a particle size less than 3 microns.

[0027] 3. Prepare silver palladium yttrium composite powder:

[0028] The particle size of the ...

Embodiment 2

[0037] This embodiment is a rare earth electrode slurry for rare earth thick film circuits used in 1Cr17 (430#) series stainless steel substrates. The electrode slurry is composed of solid phase components and organic solvent carriers. The solid phase components include silver palladium yttrium composite powder and Crystal glass powder, its specific process and formula are as follows:

[0038] 1. Glass-ceramic formula: the weight ratio of the components of each oxide is: SiO 2 (30%), Al 2 o 3 (16%), CaO (13%), B 2 o 3 (8%), La 2 o 3 (6%), Bi 2 o 3 (26%), TiO 2 (6%), ZrO 2 (3%):

[0039] 2. Glass-ceramic smelting process: Melting temperature: 1350°C for 120 minutes, then quickly out of the furnace and quenched in water to obtain glass slag. The glass slag is ball-milled in a two-stage ball mill to prepare glass-ceramic powder with a particle size less than 3 microns.

[0040] 3. Prepare silver palladium yttrium composite powder:

[0041] The particle size of the pall...

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Abstract

The invention relates to a rare-earth electrode slurry of rare-earth circuit, based on the metal base board and a relative production, wherein it is characterized in that: said slurry is formed by solid material and organic solvent carrier, while their mass ratio is 70-90:30-10; the solid component comprises: silver, palladium, and yttrium composite power and micro-crystal glass powder, while their mass percentage is 99.4-94:0.6-6; said composite power is formed by silver, palladium, and yttrium powders at the ratio as 0.6-10:99-82:0.4-8; said micro-crystal glass is the one in SiO2-Al2O3-CaO-B2O3-Bi2O3-La2O3 group. And the production comprises: (1), preparing rare-earth micro-crystal glass powder; (2), preparing silver, palladium, and yttrium composite powder; (3), preparing organic solvent carrier; (4), mixing material in three-dimension and rolling with three rollers; (5), preparing the rare-earth slurry; (6), bottling. The invention is environment friendly and better humidity compatibility.

Description

technical field [0001] The present invention relates to a rare earth electrode slurry for rare earth thick film circuits based on metal substrates, in particular to ferritic stainless steel series substrates, for example: rare earth electrode pastes for high power rare earth thick film circuits such as national standard 1Cr15, 1Cr17, 00Cr12, etc. Its preparation technology. Background technique [0002] Environmental protection, improving energy utilization and improving energy structure are part of my country's sustainable development strategy. In the field of electric heating, new heating elements require small volume, high power, small thermal inertia, large surface heat load, low power consumption, high thermal efficiency, fast thermal start, stable power, uniform temperature field, and process Good performance, automatic temperature control of the body, safe and reliable operation, long life and wide application range. At present, there is no heating element that can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/10H05B3/03H01B1/22
CPCH05B3/10H05B2203/017H01C17/06533H01B1/16H01B1/22H01C17/06553H01C17/06546H05B2203/013
Inventor 王克政
Owner GUANGDONGSHENG YUCHEN ELECTRONICS & TECH CO LTD
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