棕刚玉W28抛光粉 F#400目棕刚玉微粉

W28棕刚玉F#400目棕刚玉微粉是以铝矾土、焦碳（无烟煤）为主要原料，在电弧炉内经高温冶炼而成。主要化学成份为AL2O3、TiO2还含有少量的Sio2和Fe2O3等，显微硬度HV1800-2200、韧性比SiC高，用它制成的磨具，适于磨削抗张强度较高的金属，如各种通用钢材、可锻铁、硬青铜等。也可制造耐火材料。 

Brown fused alumina is made of bauxite, anthracite coal, and smelted in electric-arc furnace of high temperature more than 2000 degrees. Abrasives tools made by Haixu/Sicheng brown fused alumina are suitable for metal withhigh tensile(like: steel, malleable iron, bronze etc). Suitable for product high consolidation abrasive, and suitable for grinding, polishing, blasting, precision casting etc. Haixu/Sicheng brown fused alumina is also used for refractory material. Brown fused alumina with characteristics like: high purity, good crystalline liquidity, low coefficient of linear expansion, corrosion resistance, high temperature, high strength.