Alumina hollow ball is a new kind of high temperature heat insulation material, it is placed in the industrial alumina content of more than 98% in the arc furnace high temperature melting, using compressed air to blow liquid alumina into air ball alumina hollow ball.Alumina hollow ball can be made into various shapes of products, the highest temperature of 1800 degrees Celsius, the mechanical strength of the products is high, several times of the general light products, and the volume density is only half of corundum products.
The characteristics:
It is characterized by high melting point, good thermal stability, high hardness, good wear resistance, high mechanical strength, good electrical insulation and corrosion resistance
Application:
Widely used for finalizing, non-finalizing refractory materials, refractory casting binder, wear-resisting abrasive tools, high purity refractory fiber, special ceramics, electronic ceramics, structural ceramics, stainless steel, granite and other decorative materials mirror polishing.It can meet the requirements of users with different USES and different process conditions.
Bauxite the main component is alumina, aluminum hydrate contains impurities alumina, is a kind of earthy mineral, white or gray white, because of iron and brown yellow or light red. Extremely difficult to melt, insoluble in water, soluble in sulfuric acid, sodium hydroxide solution. Mainly used in aluminum smelting, refractory system.
Advantages:
1. Strong chemical stability and good physical performance
2. Light weight, good thermal stability and high temperature resistance
3. Resistance to mechanical vibration
Application:
1. Aluminum industry
2. Precision casting
3. Refractory materials
4. Abrasive materials
Chromite ore, also known as chromite ore, is a special sand for casting, is a natural spinel based on chromite, after crushing, grinding, screening into a specified size, suitable for molding (core) sand.
Our factory uses the chrome ore imported from South Africa.Foundry chromite sand is a natural process products of chromite through the broken screen classification, its main chemical composition of Cr2O3, this sand heated volume stability, high thermal conductivity, not only when in contact with molten metal has the very good resistance to basic slag, not with ferric oxide and other chemical reactions, and itself has the characteristics of the solid phase sintering, can be a very good prevent the infiltration of molten metal, avoid to produce adhering sand defects.
