Brown fused alumina, bauxite, the raw material is the use of three kinds of carbon materials, scrap iron in electric furnace by melting reduction obtained Brown people jade, so this name. The main chemical composition of Zong Gangyu is AL2O3, the content of 94.5%-97%, the other containing a small amount of Fe, Si, Ti etc..
Range of use: 1 brown corundum sand blasting -- moderate hardness, high bulk density, no free silica, more than major, good toughness, is the ideal "green" type sandblasting materials, widely used in aluminum, copper profile glass, washed jeans precision mould etc.;
2 free grinding -- level grinding abrasive, applied to the picture tube, optical glass, monocrystalline silicon, glass, clock and watch glass, crystal glass, jade and other field free grinding, high abrasive materials widely used in home;
3 resin abrasive -- abrasive color appropriate, good hardness, toughness, suitable type of cross section and cutting edge retention, used in resin abrasive, ideal effect;
4 coated abrasives -- is sandpaper, gauze and other manufacturers of raw materials;
5 the functional fillers -- mainly used for automobile brake parts, special tires, special construction products. Can be used as construction of highway pavement. Landing pier. Parking. Industrial floor. The sports venues and other wear-resistant materials;
The 6 filter media -- is a new application field of abrasive, the abrasive substrate medium granular filter bed, clean drinking water and waste water, is a new kind of filter material at home and abroad, especially suitable for non-ferrous metal processing: drilling mud weighting agent:
7 hydraulic cutting -- is abrasive for cutting medium, rely on high pressure hydraulic jet basic cutting, used in oil (gas) cut pipe, steel and other parts, a cutting model, environmental protection, safe way. Customers; washing plant denim sandblasting workshop shipyard shipyard steel structure factory powder mill grinding wheel factory sandpaper emery cloth factory crystal glass industry building floor industry steel industry hardware industry electronic industry of car manufacturing coast dock. The hospital parking lot stadium. Blasting industry cooperation to meet all types of users required terrace aggregate and abrasive.
Corundum quality bauxite as raw materials, coal, iron, made in the arc melting temperature by more than 2000 degrees, the plastic from the mill grinding, magnetic separation to iron, sieve into a variety of size, its dense texture, high hardness, the formation of spherical particles, suitable for the manufacture of ceramics, resin bonded abrasives and grinding, high polishing, sandblasting, precision casting, also can be used in the manufacture of high-grade refractory materials. Corundum level corundum principal component is alumina, alumina content grades also used to distinguish, Zong Gangyu alumina content was lower and the lower the hardness. Like SiC high toughness, hardness of 1800-2200kg/mm2, volume density ≥ 3.85g/cm3, high temperature resistance, fire resistance up to 1850 ℃.