The cokestones (hard clay clinker) produced by our company have the characteristics of white appearance, high bulk density, stable physical and chemical indicators, good fire resistance, and standard processing particle size. Coke gems have the characteristics of stable volume, high strength and low water absorption after calcination at high temperature. The indicators for measuring the sintering degree of coke gemstones are generally true specific gravity, bulk density, porosity, water absorption, and shrinkage. Good sintered cokestone has a water absorption of less than 5% and a bulk density of more than 2.55g / cm3.
Cokestone is a mixture of aluminosilicates. The main chemical components are two oxides of Al2O3 and SiO2. The impurities are mainly oxides of alkali, alkaline earth, iron, titanium, and some organic substances. Various oxides play a role of fluxing, which will reduce the fire resistance of the raw materials. Therefore, the lower the content of impurities in cokestone, especially the Na2O + K2O content, the higher the fire resistance. The closer the Al2O3 / 3SiO2 ratio is to the theoretical value (A / S = 0.85), the higher the purity of coke gemstone. The larger the A / S, the higher the fire resistance of the cokestone, and the wider the sintering and melting range. The refractory of high-quality cokestone can reach above 1750 ℃.
耐火炉料、坩埚、窑具、匣钵、不定型耐火材料等的主要原料，本公司所在地是焦宝石主要生产地，焦宝石资源丰富，所产焦宝石具有体积密度高、 杂质含量少、理化性能稳定，耐火温度高等特点，广泛用于冶金、铸造、化工、陶瓷、电力、机械、石油等行业。 Pyrostone is the main raw material for manufacturing advanced refractory materials, refractory bricks, various ceramics, precision casting sand, ceramic fibers, aluminum silicate refractory fibers, refractory materials, crucibles, kiln furniture, box bowls, and unshaped refractory materials. Our company The location is the main production place of coke gemstones. The coke gemstones are rich in resources. The coke gemstones produced are characterized by high bulk density, low impurity content, stable physical and chemical properties, and high refractory temperature. They are widely used in metallurgy, casting, chemical industry, ceramics, power, machinery, Oil and other industries.
It is made from high-quality kaolin raw ore and sintered in a high temperature in a kiln.
|index||Al2O3||Fe2O3||K2O + Na2O (%)||(%) CaO + MgO (%)||TIO2||Bulk density (g / cm3)||Fire resistance (℃)||Loss on ignition (%)|
General specifications: 0--1mm, 1--3mm, 3--5mm, 5--8mm, 8-15mm, 0-5mm, 0-50mm, 100 mesh, 180 mesh, 200 mesh, 220 mesh, 250 mesh, 270 mesh, 325 mesh; other specifications can be processed as required.