Silicon carbide ceramic used for radiators, and preparation method thereof

A silicon carbide ceramic and radiator technology, which is applied in the field of ceramic production, can solve the problems of incapable of corrosive fluid heat dissipation, etc., and achieves the effect of meeting the requirements of mechanical processing, simple production process and good thermal conductivity.

Inactive Publication Date: 2015-08-12
凤阳徽亨商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ordinary metal radiators can dissipate heat for fluids below 800 degrees, and metal radiators cannot dissipate heat for corrosive fluids

Method used

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Experimental program
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Effect test

Embodiment Construction

[0013] specific implementation plan

[0014] The present invention will be described in detail below through specific examples.

[0015] A silicon carbide ceramic used for radiators and a preparation method thereof, made of the following raw materials in parts by weight (kg): silicon carbide 70, iron powder 5, bauxite 4, carboxymethyl cellulose 2, nano-carbon black 3. Sodium polyphosphate 2, absolute ethanol 20, chopped carbon fiber predispersion 14, sintering aid 3, deionized water 80;

[0016] The sintering aid is mixed and ground into 300 mesh powder by 15 parts by weight of alumina, 8 parts by weight of zirconium boride, and 18 parts by weight of carbon powder, adding 0.6 parts by weight of methylenebisacrylamide and 15 parts by weight of The ethanol solution is mixed and stirred evenly, the solvent is evaporated by heating, pressed into a billet under 12MPa, and then dried and pulverized into a 200-mesh powder at 700°C.

[0017] The preparation method of the chopp...

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Abstract

The invention discloses a silicon carbide ceramic used for radiators, and a preparation method thereof. The silicon carbide ceramic is prepared from following raw materials, by weight, 60 to 70 parts of silicon carbide, 4 to 5 parts of iron powder, 3 to 4 parts of bauxite, 1 to 3 parts of carboxymethyl cellulose, 2 to 3 parts of nanometer carbon black, 2 to 3 parts of sodium polyphosphate, 15 to 20 parts of absolute ethyl alcohol, 10 to 14 parts of a short carbon fiber pre-dispersed material, 2 to 4 parts of a sintering aid, and 70 to 90 parts of deionized water. According to the preparation method, short carbon fiber is added so as to improve mechanical properties of silicon carbide, improve breaking tenacity of ceramic, improve strength and compactness of ceramic biscuit, and satisfy mechanical processing requirements; the preparation method is simple; the silicon carbide ceramic is light; friction coefficient is high and stable; thermal conductivity is high; service life is long; and application prospect of the silicon carbide ceramic used for the radiators is promising.

Description

technical field [0001] The invention relates to a silicon carbide ceramic used for radiators and a preparation method thereof, belonging to the technical field of ceramic production. Background technique [0002] Ordinary metal radiators can dissipate heat for fluids below 800 degrees, and metal radiators cannot dissipate heat for corrosive fluids. The ceramic radiator has high temperature resistance and corrosion resistance, so it can be used in various high temperature and highly corrosive fluids for heat dissipation. The heat dissipation effect is good, and the service life is several times that of the metal radiator under the same circumstances. Dozens of times. Ceramic heat exchangers have been widely used in metallurgy, refractory materials, building materials, chemicals, non-ferrous metals and other industries, saving a lot of energy for enterprises and reducing production costs. Silicon carbide itself is almost non-conductive and is a good insulator, which is not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565C04B35/80C04B35/622
Inventor 张波
Owner 凤阳徽亨商贸有限公司
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