The performance of corundum brick refers to corundum brick has the performance when used under high temperature. Including fire resistance, fire resistance under load, linear change rate, thermal shock resistance, slag resistance, acid resistance, alkali resistance, oxidation resistance, water resistance and CO corrosion resistance.
1. Improve fire resistance.
Fire resistance refers to the non-melting properties of corundum bricks at high temperatures. Fire resistance is the basis for determining whether a material can be used as a refractory brick. International Organization for Standardization, 1500 ℃ above the inorganic non-metallic materials, fire resistance is refractory. Refractory and melting point of significance. The fire resistance can not be used as the temperature for the use of corundum bricks. The basic factors determining fire resistance are chemical mineral composition and the distribution of corundum brick.
2. Increase the fire resistance under load.
The fire resistance of corundum brick under load refers to the product under constant temperature conditions of load deformation temperature. It shows that corundum bricks have the ability to withstand high temperatures and load, to some extent that the product in a similar condition under the use of structural strength. The main factors affecting the fire resistance of corundum brick under load are chemical mineral composition and microstructure. To improve the purity of raw materials, reduce the low melting point or low melting point content, improve the molding pressure, made of high-density brick, can significantly improve the product under fire load.
