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

A rare earth thick film, dielectric paste technology, used in circuits, conductive materials dispersed in non-conductive inorganic materials, resistance manufacturing, etc.

Active Publication Date: 2007-02-07
GUANGDONGSHENG YUCHEN ELECTRONICS & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to the investigation, so far, there are no rare earth thick film circuits based on 1Cr15, 1Cr17, 00Cr12 (foreign brands 430#, 429#, 410L#) s...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This example is a rare-earth thick-film circuit rare-earth dielectric slurry for 1Cr15 (429#) series stainless steel metal substrates. It is composed of a solid-phase component composed of glass-ceramic powder and an organic solvent carrier. Its components and formulation process are as follows :

[0031] 1. The solid phase component is SiO 2 -Al 2 o 3 -CaO-B 2 o 3 -La 2 o 3 It is glass-ceramic, the formula is: SiO 2 (36%), Al 2 o 3 (16%), CaO (25%), B 2 o 3 (7%), La 2 o 3 (6%), Co. 2 o 3 (2%), TiO 2 (5%), ZrO 2 (3):

[0032]2. Melting process: The melting temperature is: 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.

[0033] 3. Preparation of organic solvent carrier:

[0034] Dissolve the main solvent, thickener, thixotropic agent, and surfactant in the following propor...

Embodiment 2

[0042] Rare earth dielectric slurry for rare earth thick film circuits used in 1Cr17 (430#) series stainless steel metal substrates. The dielectric slurry is prepared from a solid phase component composed of glass-ceramic powder and an organic solvent carrier. The process steps and formula are as follows:

[0043] 1.SiO2 2 -Al 2 o 3 -CaO-B 2 o 3 -La 2 o 3 The formula of glass-ceramics is: SiO 2 (34%), Al 2 o 3 (19%), CaO (22%), B 2 o 3 (10%), La 2 o 3 (4%), Co. 2 o 3 (1%), TiO 2 (6%), ZrO 2 (4%):

[0044] 2. Melting process: The melting temperature is: 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.

[0045] 3. Preparation of organic solvent carrier:

[0046] Dissolve the main solvent, thickener, thixotropic agent, and surfactant in the following proportions in water at 85°C for s...

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Abstract

The invention relates to a rare-earth meidum 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 is the glass in SiO2-Al2O3-CaO-B2O3-Bi2O3-La2O3 group, and the components of each oxidant have the mass percentages as: SiO2(30-65%), Al2O3(5-26%), CaO(18-38%), B2O3(2-16%), La2O3(0.3-15%), Co2O3(0.05-6%), TiO2(1-10%), ZrO2(1-10%). And the production comprises: (1), preparing rare-earth micro-crystal glass powder; (2), preparing organic solvent carrier; (3), mixing material in three-dimension and rolling with three rollers; (4), preparing medium slurry; (5), preparing the rare-earth slurry; (6), bottling. The invention is environment friend, better sinter property, better print property, and better humidity compatibility.

Description

Technical field: [0001] The present invention relates to rare earth dielectric paste for rare earth thick film circuits based on metal substrates, in particular to substrates based on ferritic stainless steel series, for example: national standard grades 1Cr15, 1Cr17, 00Cr12 and other foreign grades 429#, 430#, 410L# and other high-power rare earth Rare earth dielectric paste for thick film circuits and its preparation technology. Background technique: [0002] In the sustainable development strategy established by our country, the two aspects involved are environmental protection, improving energy utilization rate and improving energy structure. 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, self-temperature control of the body, safe and reliable o...

Claims

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Application Information

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IPC IPC(8): H05B3/10H01B3/00
CPCH01B1/16H01B1/22H01C17/06533H01C17/0656
Inventor 王克政
Owner GUANGDONGSHENG YUCHEN ELECTRONICS & TECH CO LTD
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