Sunrise Refractory Corundum Mullite With Competitive Price
Date:2019-04-19 16:15 From:Zhengzhou Sunrise Refractory Author:admin
Sunrise refractory corundum mullite refractory brick adopts pure electric melting white jade steel (white corundum is made of high quality industrial alumina as raw material, electrolyzed and smelted), synthetic mullite, chromium oxide, etc. as raw materials, corundum brick It is formed by molding and sintering at high temperature. The product has the advantages of compact structure, high compressive strength, high temperature resistance (≥1790°C), good thermal shock resistance, acid and alkali gas erosion, and the use of corundum brick is not affected by reducing gases such as H2 and CO.
Corundum brick is an aluminum-silicon refractory product with corundum as the main phase. Corundum brick has excellent high temperature mechanical properties, good corrosion resistance and wear resistance. The raw material is composed of natural aluminum hydroxide containing gibbsite, gibbsite, etc., and these hydrates are heated and dehydrated to obtain alumina (γ-Al2O3). It is then converted to corundum (α-Al2O3) by heating to 1450 °C. Since natural corundum and natural pure boehmite have little reserves in nature, industrial alumina is mainly used as a raw material for the production of corundum, and the industrial alumina produced is mainly α-Al2O3. When the γ-Al2O3 is converted into α-Al2O3, the volume shrinkage is 13%. In order to make the α-Al2O3 grains develop well, the raw materials need to be treated at a higher temperature. After high temperature burning, the α-Al2O3 grains can grow 25 to 40 times.
Sunrise Refractory Co., ltd. is a professional manufacturer and supplier of refractory products in China's refractory base. Our company is China's largest refractories manufacturers, Our major products are refractory bricks, insulating bricks, refractory castable, refractory mortars, high alumina brick, high alumina castable, ceramic fiber blanket, ceramic fiber board, alumina ceramics and other industrial ceramics. If you have any question for our Sunrise refractory corundum mullites, call me and i will reply you in the first time, you will get a competitive price of our Sunrise refractory corundum mullites.
Corundum brick is an aluminum-silicon refractory product with corundum as the main phase. Corundum brick has excellent high temperature mechanical properties, good corrosion resistance and wear resistance. The raw material is composed of natural aluminum hydroxide containing gibbsite, gibbsite, etc., and these hydrates are heated and dehydrated to obtain alumina (γ-Al2O3). It is then converted to corundum (α-Al2O3) by heating to 1450 °C. Since natural corundum and natural pure boehmite have little reserves in nature, industrial alumina is mainly used as a raw material for the production of corundum, and the industrial alumina produced is mainly α-Al2O3. When the γ-Al2O3 is converted into α-Al2O3, the volume shrinkage is 13%. In order to make the α-Al2O3 grains develop well, the raw materials need to be treated at a higher temperature. After high temperature burning, the α-Al2O3 grains can grow 25 to 40 times.