What is brown alumina? What are the characteristics of brown corundum?
Brown corundum is bauxite, coke (anthracite) as the main raw materials, in the arc furnace by high temperature smelting, with it made of abrasive tools, suitable for grinding high tensile metal, such as a variety of general steel, malleable cast iron, hard bronze, etc., can also manufacture high-grade refractory materials. Brown corundum has the characteristics of high purity, good crystallization, strong fluidity, low coefficient of linear expansion and corrosion resistance. Through the practice of dozens of refractory production enterprises, the product has the characteristics of no initiation, no pulverization and no cracking in the application process. In particular, its cost performance is much higher than that of traditional brown corundum, which makes it a good aggregate and filler for brown corundum refractory materials.
Uses of brown corundum:
1, sandblasting - abrasive hardness moderate, high density, no free silica, than significant, toughness is good, is an ideal environmental protection sandblasting material, widely used with aluminum, copper profile glass, washed jeans precision mold and other fields.
2, free grinding - grinding grade abrasives, used in picture tube, optical glass, monocrystalline silicon, lens, watch glass, crystal glass, jade and other fields of free grinding, is widely used in the domestic advanced grinding materials.
3, resin abrasives - abrasives with appropriate color, good hardness, toughness, suitable particle section type and cutting edge retention, applied to resin abrasives, the effect is ideal.
4, paint abrasives - abrasives are sandpaper, gauze and other manufacturers of raw materials.
5, functional fillers - mainly used for automotive braking parts, special tires, special construction products and other collar can be used as a construction of highway pavement, airstrip, dock, parking lot, industrial floor, sports field and other wear-resistant materials.
6, filter media - is a new application field of abrasives, using granular abrasives as the bottom medium of the filter bed, purifying drinking water or wastewater, is a new type of water filtration materials at home and abroad, especially suitable for non-ferrous metal beneficiation, oil drilling mud weighting agent.
7, hydraulic cutting - abrasive as the cutting medium, relying on high pressure hydraulic jet for basic cutting, applied to oil (natural gas) pipelines, steel and other parts of the cutting, is a new, environmentally friendly, safe cutting method. Mainly used in: washing plant, denim, sandblasting, workshop, shipyard, repair yard, steel structure factory, micro powder factory, sand wheel factory, sandpaper, gauze factory, crystal, glass industry, building floor industry, steel industry, hardware industry, electronics industry, automobile manufacturing, coastal wharf, parking lot, hospital, stadium, sandblasting industry and other cooperation to meet the needs of all kinds of users of the floor aggregate and abrasive.
