Preparation process of electronic ceramic flow-casting sizing agent

A technology of casting slurry and electronic ceramics, which is applied in the field of electronic ceramics production, can solve the problems of poor powder dispersion, poor mechanical properties, and poor mixing uniformity of ball milling, so as to achieve good mixing uniformity of ball milling, improve smoothness and Elasticity, the effect of improving the plasticizing effect

Inactive Publication Date: 2017-10-10
郑州联冠科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing casting slurry preparation process takes a long time and the effect is not good
The powder, main solvent, plasticizer, dispersant and binder are added to the ball mill at the same time, resulting in the dispersant not being able to fully disperse the powder, the powder dispersibility is not good, and the powder dispersibility in the cas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An electronic ceramic casting slurry configuration process, comprising the following process steps:

[0024] a. Weigh powder, main solvent, dispersant, binder and plasticizer according to the designed ratio;

[0025] The powder material includes alumina, kaolin, talc, calcium carbonate and yttrium oxide, and the weight percentage of alumina in the casting slurry is 60%. The weight percentage in the casting slurry is 25%, and the described binder is polyvinyl butyral, and the weight percentage in the casting slurry is 5%, and the dispersant is nonyl Base phenol polyoxyethylene ether, its weight percentage in the casting slurry is 1%, and the plasticizer is dibutyl phthalate, and its weight percentage in the casting slurry is It is 3%, and the balance is the mixture of kaolin, talc, calcium carbonate and yttrium oxide in the powder.

[0026] b. Add the weighed powder to the ball mill, then add the dispersant to the ball mill, then add half of the main solvent to the bal...

Embodiment 2

[0030] An electronic ceramic casting slurry configuration process, comprising the following process steps:

[0031] a. Weigh powder, main solvent, dispersant, binder and plasticizer according to the designed ratio;

[0032] The powder material includes alumina, kaolin, talc, calcium carbonate and lanthanum oxide, the weight percentage of alumina in the casting slurry is 75%, and the main solvent is absolute ethanol, which is The weight percentage in the casting slurry is 15%, and the described binder is polyvinyl butyral, and the weight percentage in the casting slurry is 2%, and the dispersant is nonyl Base phenol polyoxyethylene ether, its weight percentage in the casting slurry is 1%, and the plasticizer is dibutyl phthalate, and its weight percentage in the casting slurry is It is 4%, and the balance is the mixture of kaolin, talc, calcium carbonate and lanthanum oxide in the powder.

[0033] b. Add the weighed powder to the ball mill, then add the dispersant to the ball...

Embodiment 3

[0037] An electronic ceramic casting slurry configuration process, comprising the following process steps:

[0038] a. Weigh powder, main solvent, dispersant, binder and plasticizer according to the designed ratio;

[0039] The powder material includes alumina, kaolin, talc, chromium oxide, molybdenum oxide, calcium carbonate and yttrium oxide, and the weight percentage of alumina in the casting slurry is 65%. It is absolute ethanol, and its weight percentage in the casting slurry is 20%, and the binder is polyvinyl butyral, and its weight percentage in the casting slurry is 4% , the dispersant is nonylphenol polyoxyethylene ether, and its weight percentage in the casting slurry is 0.5%, and the plasticizer is dibutyl phthalate, which is used in the casting slurry. The weight percentage of the slurry is 2%, and the balance is a mixture of kaolin, talc, chromium trioxide, molybdenum oxide, calcium carbonate and yttrium oxide in the powder.

[0040] b. Add the weighed powder t...

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PUM

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Abstract

The invention relates to a preparation process of an electronic ceramic flow-casting sizing agent. The preparation process comprises the following steps: ball milling and uniformly mixing powder, a dispersing agent and a half of a main solvent so as to obtain a mixed powder agent, wherein the powder is adequately dispersed and is uniformly mixed through ball milling; uniformly mixing and stirring a plasticizer, a binder and the other half of the main solvent so as to obtain a mixed solvent, wherein the plasticizer cannot be adequately inserted into a double bond of the binder, the binder is adequately plasticized, and the plasticizing effect of the binder is increased; and finally, adding the mixed solvent into the mixed powder, and carrying out adequate ball milling and mixing, so as to obtain the flow-casting sizing agent. Electronic ceramic produced through the sintering of the flow-casting sizing agent has a dense and compact structure, grain particles are small, and the mechanical property is greatly improved.

Description

technical field [0001] The invention relates to the technical field of electronic ceramic production, in particular to an electronic ceramic casting slurry configuration process. Background technique [0002] Ceramics that can utilize electrical and magnetic properties in the electronics industry are called electronic ceramics. Electronic ceramics are ceramics with new functions that can be finally obtained by controlling the surface, grain boundaries and size structure. It can be widely used in energy, household appliances, automobiles, etc. [0003] At present, when the electronic ceramic green body is produced, it is usually produced by the method of tape casting. In this way, the configuration of the casting slurry is very critical. The existing electronic ceramic casting slurry preparation process is to sequentially add powder, main solvent, plasticizer, dispersant and binder into the ball mill tank for ball milling according to the formula. Ball milling time is gene...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/622C04B35/632
CPCC04B35/10C04B35/622C04B35/632C04B2235/3208C04B2235/3225C04B2235/3227C04B2235/3241C04B2235/3256C04B2235/3445C04B2235/349C04B2235/6025
Inventor 王维
Owner 郑州联冠科技有限公司
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