The use performance of Corundum Brick
Date:2016-08-19 17:46 From:Zhengzhou Sunrise Refractory Author:admin
The use performance of corundum brick refers to the corundum brick has the performance when used in high temperature. Including refractoriness, refractoriness under load,
linear change rate, thermal shock resistance, slag resistance, acid resistance, alkali resistance, oxidation resistance, resistance to hydration and CO erosion resistance, etc.
1. Increase the refractoriness.
Refractoriness refers to corundum brick with non-melting performance under resistance to high temperature. Refractoriness is the basis for determining material whether can be
used as a refractory brick. The international standardization organization stipulates above 1500 ℃ refractoriness of inorganic non-metallic materials is the refractory material. The
significance of refractoriness and melting point is different. Can not take refractoriness as the use of corundum brick temperature. The basic factor of refractoriness to decide
is chemical mineral composition and its distribution of corundum brick.
2. Increase the refractoriness under load.
Corundum brick refractoriness under load refers to the products bear constant load deformation temperature under the condition of rise temperature. It shows corundum brick the
ability of resistance to high temperature and load effect, to a certain extent, indicates that products in the similar conditions of use case structure strength. The major factors that
affect corundum brick refractoriness under load is the chemical mineral composition and microstructure. To improve the purity of raw materials, reduce the content of low melting
or flux, increase the molding pressure, made of high density of bricks, can significantly improve products refractoriness under load.
3. Improve the thermal shock resistance
Thermal shock resistance refers to the corundum brick with damage resistance performance to the temperature change rapidly. Generally speaking, the thermal expansion rate of
corundum brick is greater, thermal shock resistance is worse. The thermal conductivity of products is higher, thermal shock resistance is better, the better. In addition, the
organization structure and grain composition shape and other products of corundum brick have effect on the thermal shock resistance.
linear change rate, thermal shock resistance, slag resistance, acid resistance, alkali resistance, oxidation resistance, resistance to hydration and CO erosion resistance, etc.
1. Increase the refractoriness.
Refractoriness refers to corundum brick with non-melting performance under resistance to high temperature. Refractoriness is the basis for determining material whether can be
used as a refractory brick. The international standardization organization stipulates above 1500 ℃ refractoriness of inorganic non-metallic materials is the refractory material. The
significance of refractoriness and melting point is different. Can not take refractoriness as the use of corundum brick temperature. The basic factor of refractoriness to decide
is chemical mineral composition and its distribution of corundum brick.
2. Increase the refractoriness under load.
Corundum brick refractoriness under load refers to the products bear constant load deformation temperature under the condition of rise temperature. It shows corundum brick the
ability of resistance to high temperature and load effect, to a certain extent, indicates that products in the similar conditions of use case structure strength. The major factors that
affect corundum brick refractoriness under load is the chemical mineral composition and microstructure. To improve the purity of raw materials, reduce the content of low melting
or flux, increase the molding pressure, made of high density of bricks, can significantly improve products refractoriness under load.
3. Improve the thermal shock resistance
Thermal shock resistance refers to the corundum brick with damage resistance performance to the temperature change rapidly. Generally speaking, the thermal expansion rate of
corundum brick is greater, thermal shock resistance is worse. The thermal conductivity of products is higher, thermal shock resistance is better, the better. In addition, the
organization structure and grain composition shape and other products of corundum brick have effect on the thermal shock resistance.