Alumina is suitable for a variety of wet and dry treatment processes. It can grind the rough surface of any workpiece finely. It is one of the most economical abrasives. This kind of sharp and water chestnut synthetic abrasive has hardness second only to diamond, and is especially suitable for use when there are strict requirements for iron pollution. Used for the roughest cutting, it can also be made into a pebble shape to process precision-sized workpieces to achieve extremely low roughness. Due to its high density, sharpness, and rhombohedral structure, it is one of the fastest cutting abrasives.
Alumina is used to produce brown corundum by fusing high-quality bauxite ore, while high-quality aluminate is used to produce powder corundum and white corundum. Their natural crystal structure makes them hard and fast. At the same time, they are often used as raw materials for fixed and coated abrasives.
Alumina can be recycled many times, and the number of cycles is related to the grade of material and the specific process. Most standard abrasive blasting equipment can be used.
Applicable industries: aerospace industry, automotive industry, consumer goods processing, casting/die casting, OEM distributors, semiconductor industry and other fields.
Applicable process range: surface electroplating, painting, glazing and pretreatment before PTFE coating; deburring and pot scaling of aluminum and alloy products; mold cleaning; pretreatment before metal sandblasting; dry grinding and wet grinding; Precision optical refraction; grinding of minerals, metals, glass and crystals; glass carving and paint additives.
Activated alumina
Technical index
Appearance of activated alumina: activated alumina is a white spherical porous particle with uniform particle size, smooth surface, high mechanical strength, strong hygroscopicity, does not swell or crack after absorbing water, and remains intact, non-toxic, odorless, insoluble in water and ethanol, It has strong adsorption to fluorine and is mainly used to remove fluoride in drinking water in high-fluorine areas.
Activated alumina has selective adsorption capacity for gas, water vapor and some liquid moisture. After the adsorption is saturated, it can be revived by heating at about 175-315°C to remove water. Adsorption and resurrection can be performed multiple times. In addition to being used as a desiccant, it can also adsorb the vapor of lubricating oil from polluted oxygen, hydrogen, carbon dioxide, natural gas, etc. It can also be used as catalyst and catalyst carrier and chromatography carrier.
Activated alumina under certain operating conditions and regeneration conditions, the drying depth of the product is as high as the dew point temperature-70 degrees or less.