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Anticorrosion silicon carbide shelf plate and preparation method thereof

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

Inactive Publication Date: 2015-12-16
INNER MONGOLIA AGRICULTURAL UNIVERSITY
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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 insufficient thermal shock resistance and high temperature toughness of the existing silicon carbide shed board, so in the kiln of rapid firing, rapid cooling and rapid heating, the shed board is easy to break at the weak part, especially cracking at the shrinkage joint , or corner and edge fracture defects to provide a corrosion-resistant 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

[0031] A method for preparing an anti-corrosion silicon carbide shelving board, said preparation method comprising the following steps:

[0032] 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, and fine silicon carbide powder of 10-100 nanometers;

[0033] 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 lubricating grease 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;

[0034] The composite antioxidant is obtained by mixing antioxidant 1010 and antioxidant DLTP in honey, and then ultrasonically dispersing in a water bath at 60°C for 2 hours;

[0035] The...

Embodiment 2

[0042] A method for preparing an anti-corrosion silicon carbide shelving board, said preparation method comprising the following steps:

[0043] 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, and fine silicon carbide powder of 10-100 nanometers;

[0044] 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 lubricating grease 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;

[0045] The composite antioxidant is obtained by mixing antioxidant 1010 and antioxidant DLTP in honey, and then ultrasonically dispersing in a water bath at 65°C for 3 hours;

[0046] The...

Embodiment 3

[0053] A method for preparing an anti-corrosion silicon carbide shelving board, said preparation method comprising the following steps:

[0054] 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, and fine silicon carbide powder of 10-100 nanometers;

[0055] 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 lubricating grease 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;

[0056] The composite antioxidant is obtained by mixing antioxidant 1010 and antioxidant DLTP in honey, and then ultrasonically dispersing in a water bath at 70°C for 5 hours;

[0057] The...

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Abstract

The present invention relates to an anticorrosion silicon carbide shelf plate and a preparation method thereof, wherein the anticorrosion silicon carbide shelf plate comprises the following raw materials by mass: silicon carbide particles, silicon carbide coarse powder, silicon carbide fine powder, silicon carbide micro-powder, graphene, a composite antioxidant, a composite binding agent, molybdenum disulfide and a lubricating grease. According to the present invention, the product has characteristics of excellent thermal shock resistance, strong anti-oxidation property, strong slag erosion resistance, strong alkali metal erosion resistance, excellent erosion resistance, excellent thermal insulation and good high temperature volume stability; and the highly uniform dispersion inside the shelf plate can be achieved, the sintering can be promoted, the shelf plate can have the uniform structure, and the strength and the thermal shock resistance of the product can be improved.

Description

technical field [0001] The invention relates to a corrosion-resistant 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, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/577C04B35/622C04B41/85
Inventor 景红卫
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY
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