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Method for processing electronic ceramic casting slurry

A technology for electronic ceramics and casting slurry, applied in the field of electronic ceramics processing, can solve the problems of affecting the suspension effect, the preparation process is time-consuming, and the effect is not good, so as to save the ball milling time, have a good microstructure, and have uniform and clear lines. Effect

Active Publication Date: 2013-11-27
湖南省新化县鑫星电子陶瓷有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: the existing casting slurry preparation process takes a long time and the effect is not good
The main solvent, plasticizer, surface lubricant, adhesive and powder are added to the ball mill at the same time, and the plasticizer cannot be fully inserted into the double bond of the adhesive, which affects the suspension effect; while the surface lubricant cannot effectively infiltrate Keep the powder sticky, the powder agglomerates seriously, so the microstructure of the fired product is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment provides a processing method for electronic ceramic casting slurry, the processing method comprising the following steps:

[0023] S1, adding the main solvent, the plasticizer, the surface lubricant and the adhesive sequentially into the ball mill tank according to the predetermined ratio and milling for 2-4 hours.

[0024] S2, adding a predetermined proportion of electronic ceramic powder into the ball milling tank, and continuing the ball milling for 26-32 hours to obtain an electronic ceramic casting slurry.

[0025] In step S1, the main solvent is a mixture of one or more of toluene, xylene, butanone, cyclohexanone and trichloroethylene, and the weight percentage of the main solvent in the electronic ceramic casting slurry is 15% ~25%.

[0026] The plasticizer is DOP, DBP or a mixture of DOP and DBP, and the weight percentage of the plasticizer in the electronic ceramic cast slurry is 1% to 5%.

[0027] The surface lubricant is corn oil, castor oil...

Embodiment 2

[0033] This embodiment provides a processing method for electronic ceramic casting slurry, the processing method comprising the following steps:

[0034] S1, add the main solvent, plasticizer, surface lubricant and adhesive sequentially into the ball mill tank according to the predetermined proportion and ball mill for 3 hours. Wherein, the main solvent is toluene, and the percentage by weight that toluene accounts for in the electronic ceramic casting slurry is 20%; the plasticizer is DOP, and the weight percentage that DOP accounts for in the electronic ceramic casting slurry is 3%; The lubricant is corn oil, and the weight percentage of corn oil in the electronic ceramic casting slurry is 0.8%; the binder is PVA, and the weight percentage of PVA in the electronic ceramic casting slurry is 4%.

[0035] S2, adding a predetermined proportion of electronic ceramic powder into the ball milling tank, and continuing the ball milling for 30 hours to obtain an electronic ceramic cas...

Embodiment 3

[0039] This embodiment provides a processing method for electronic ceramic casting slurry, the processing method comprising the following steps:

[0040] S1, add the main solvent, plasticizer, surface lubricant and adhesive sequentially into the ball mill tank according to the predetermined proportion and ball mill for 3.5 hours. Wherein, main solvent is dimethylbenzene, and the percentage by weight that dimethylbenzene accounts for in electronic ceramic cast slurry is 15%; Plasticizer is DBP, and the percentage by weight that DBP accounts for in electronic ceramic cast slurry is 5% The surface lubricant is castor oil, and the weight percentage that castor oil accounts for in the electronic ceramic cast slurry is 1.5%; The binder is PVA, and the weight percentage that PVA accounts for in the electronic ceramic cast slurry is 3.5% .

[0041] S2, adding a predetermined proportion of electronic ceramic powder into the ball milling tank, and continuing the ball milling for 31 hou...

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PUM

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Abstract

The invention discloses a method for processing electronic ceramic casting slurry. The method comprises the following steps of: (1) sequentially adding a main solvent, a plasticizer, a surface lubricant and an adhesive into a ball-milling tank according to scheduled proportions, and performing ball milling for 2-4 hours; and (2) adding electronic ceramic powder in a scheduled proportion into the ball-milling tank, and continuously performing ball milling for 26-32 hours to obtain the electronic ceramic casting slurry, wherein the electronic ceramic powder is Al2O3 powder and accounts for 65-75% of the weight of the electronic ceramic casting slurry. According to the method, the main solvent, the plasticizer, the surface lubricant and the adhesive are added into the ball-milling tank once at first and are subjected to ball milling for 2-4 hours, then the electronic ceramic powder is added, and ball milling is continuously carried out for 26-32 hours, so that on the one hand, the ball milling time is greatly saved, and the preparation efficiency of the electronic ceramic casting slurry is improved.

Description

technical field [0001] The invention relates to the technical field of electronic ceramic processing, in particular to a processing method of electronic ceramic casting slurry. [0002] Background technique [0003] Ceramics that can use electricity and magnetic properties in the electronics industry are called electronic ceramics. Electronic ceramics are ceramics with new functions obtained through the control of surface, grain boundary and size structure. It can be widely used in energy, household appliances, automobiles, etc. [0004] At present, when the electronic ceramic green body is produced, it is usually produced by tape casting. In this way, the configuration of the casting slurry is very critical. The existing electronic ceramic casting slurry preparation process is to add the main solvent, plasticizer, surface lubricant, adhesive and powder into the ball mill tank for ball milling according to the formula. , The ball milling time is generally 56 to 72 hours....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/622C04B35/634
Inventor 毛福堂曹培福刘卫华
Owner 湖南省新化县鑫星电子陶瓷有限责任公司
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