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High strength silicon carbide deck and production method thereof

A silicon carbide shed and high-strength technology, which is applied in the field of high-strength silicon carbide shed board and its preparation, can solve the problems of shed board breakage, fracture, thermal shock resistance and high temperature toughness, etc., to improve strength and thermal shock resistance High performance, uniform structure, and strong alkali metal corrosion performance

Inactive Publication Date: 2015-12-09
浙江长兴银兴窑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the existing silicon carbide shed plate has insufficient thermal shock resistance and high temperature toughness. Therefore, in the kiln of rapid firing, rapid cooling and rapid heating, the shed plate is easy to break at the weak part, especially at the shrinkage joint. , or the defects of corner and edge fractures to provide a high-strength silicon carbide shed plate with high strength, good thermal conductivity, and excellent thermal shock resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of preparation method of high-strength silicon carbide shelving board, described preparation method comprises the following steps:

[0030] a) Material selection: select silicon carbide particles with a particle size of 1-3 cm, coarse silicon carbide powder of 0.5-15 mm, fine silicon carbide powder of 0.2-12 microns, fine silicon carbide powder of 10-100 nm, and powdered rosin through a 400-mesh sieve ;

[0031] b) Weighing according to the weight percentage of the formula, mixing and stirring silicon carbide particles, silicon carbide coarse powder, silicon carbide fine powder, silicon carbide micropowder, graphene, composite antioxidant, composite binder, and rosin powder to obtain a mixed powder; Said compound antioxidant is made up of antioxidant 1010, antioxidant DLTP and honey, and its mass ratio is 2:2:5;

[0032] The composite antioxidant is obtained by mixing antioxidant 1010 and antioxidant DLTP in honey, and then ultrasonically dispersing in a water b...

Embodiment 2

[0040] A kind of preparation method of high-strength silicon carbide shelving board, described preparation method comprises the following steps:

[0041] a) Material selection: select silicon carbide particles with a particle size of 1-3 cm, coarse silicon carbide powder of 0.5-15 mm, fine silicon carbide powder of 0.2-12 microns, fine silicon carbide powder of 10-100 nm, and powdered rosin through a 400-mesh sieve ;

[0042] b) Weighing according to the weight percentage of the formula, mixing and stirring silicon carbide particles, silicon carbide coarse powder, silicon carbide fine powder, silicon carbide micropowder, graphene, composite antioxidant, composite binder, and rosin powder to obtain a mixed powder; Said compound antioxidant is made up of antioxidant 1010, antioxidant DLTP and honey, and its mass ratio is 2:2:5;

[0043] The composite antioxidant is obtained by mixing antioxidant 1010 and antioxidant DLTP in honey, and then ultrasonically dispersing in a water bat...

Embodiment 3

[0051] A kind of preparation method of high-strength silicon carbide shelving board, described preparation method comprises the following steps:

[0052] a) Material selection: select silicon carbide particles with a particle size of 1-3 cm, coarse silicon carbide powder of 0.5-15 mm, fine silicon carbide powder of 0.2-12 microns, fine silicon carbide powder of 10-100 nm, and powdered rosin through a 400-mesh sieve ;

[0053] b) Weighing according to the weight percentage of the formula, mixing and stirring silicon carbide particles, silicon carbide coarse powder, silicon carbide fine powder, silicon carbide micropowder, graphene, composite antioxidant, composite binder, and rosin powder to obtain a mixed powder; Said compound antioxidant is made up of antioxidant 1010, antioxidant DLTP and honey, and its mass ratio is 2:2:5;

[0054] The composite antioxidant is obtained by mixing antioxidant 1010 and antioxidant DLTP in honey, and then ultrasonically dispersing in a water b...

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Abstract

The invention relates to a high strength silicon carbide deck and a production method thereof. The high strength silicon carbide deck comprises silicon carbide particles, silicon carbide coarse powder, silicon carbide fine powder, silicon carbide micro-powder, graphene, a composite antioxidant, a composite binder, rosin powder and carbon nanotubes according to mass percentages. Lightweight silica bricks having the advantages of excellent thermal shock resistance, strong oxidation, slag and alkali metal erosion resistance, excellent washing resistance and heat insulation performance, and good high-temperature volume stability can be highly and uniformly dispersed in the deck, promote sintering, make the deck have a uniform microstructure, and improve the strength and the thermal shock resistance of the deck.

Description

technical field [0001] The invention relates to a high-strength silicon carbide shed plate with high strength, good thermal conductivity and excellent thermal shock resistance and a preparation method thereof. Background technique [0002] Due to the good chemical stability, excellent wear resistance and excellent high temperature performance of the silicon carbide matrix, the shelving board based on silicon carbide has also been widely used, and the thermal expansion and cooling of the silicon carbide shelving board during use Shrinkage, easy to cause breakage or cracks. [0003] The silicon carbide shed plate has the following defects during the firing process: 1) Due to insufficient bulk density and large porosity, it is easy to form the lowest eutectic and cause porcelain sticking and surface stains; 2) The high-temperature flexural strength is not high, Under the condition of high temperature and heavy load, the deformation degree of the shed plate is large, which not ...

Claims

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Application Information

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IPC IPC(8): C04B35/565C04B35/634
Inventor 景红卫
Owner 浙江长兴银兴窑业有限公司
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