Brown aluminum oxide is made of high-quality bauxite, anthracite, iron filings, which is smelted at a high temperature of more than 2000 degrees in the arc and crushed by mechanical processing Shaping, magnetic separation of iron, screening into a variety of particle size, its dense texture, high hardness, the particles form a ball, suitable for manufacturing ceramics, resin high consolidation abrasive tools and grinding, polishing, sandblasting, precision casting, etc., can also be used to manufacture high-grade refractory materials, is a very important industrial raw materials.
Brown aluminum oxide is made of high-quality bauxite, anthracite, iron filings, which is smelted at a high temperature of more than 2000 degrees in the arc and crushed by mechanical processing Shaping, magnetic separation of iron, screening into a variety of particle size, its dense texture, high hardness, the particles form a ball, suitable for manufacturing ceramics, resin high consolidation abrasive tools and grinding, polishing, sandblasting, precision casting, etc., can also be used to manufacture high-grade refractory materials, is a very important industrial raw materials.
The density of brown corundum is divided into two names, one is the packing density of brown corundum and the other is the particle density of brown corundum.
Brown corundum packing density Brown corundum particle density
1.53-1.99g/cm3, the packing density of abrasives is related to the particle size, particle size composition, variety, particle shape and other factors. Generally speaking, the packing density of coarse-grained abrasives is greater than that of fine-grained abrasives, and the packing density of mixed-grained abrasives is greater than that of a single particle size. 3.95-4.0/cm3, the particle density of the abrasive refers to the mass of the abrasive contained in the unit volume (the volume excluding the open porosity).
At present, the industry mainly uses the following models of brown corundum: Including first-class brown aluminum oxide particle size sand, brown corundum polishing sand, special brown corundum polishing sand for metal rust removal, special brown corundum polishing sand for jeans, special brown corundum sand for hot drill, special brown corundum sand for 100#-180# resin grinding wheel, special brown corundum sand for wear-resistant floor, special brown corundum for strong sand belt, W series brown corundum micro-powder, casting with coated brown corundum sand.
The pack density of each type of sand must be different. The specific value depends on the processing method, the pile density of roll sand brown corundum is low, the ball scrub is medium, the pile density of Barmack sand is relatively high, if there are special requirements and plastic sand, the pile density is the highest. And it's different from manufacturer to manufacturer. For customers, specific requirements can be made and generally can be achieved.
For the brown aluminum oxide abrasives used in the manufacture of coated abrasives, the quality of abrasives is mainly reflected in the bulk density and toughness of these two indicators. Because these two indicators are related, the packing density is high, the toughness of the abrasive is high, and the particle size composition is easy to concentrate.
