棕剛玉W28拋光粉 F#400目棕剛玉微粉 W28棕剛玉F#400目棕剛玉微粉是以鋁礬土、焦碳（無(wú)煙煤）為主要原料，在電弧爐內(nèi)經(jīng)高溫冶煉而成。主要化學(xué)成份為AL2O3、TiO2還含有少量的Sio2和Fe2O3等，顯微硬度HV1800-2200、韌性比SiC高，用它制成的磨具，適于磨削抗張強(qiáng)度較高的金屬，如各種通用鋼材、可鍛鐵、硬青銅等。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. W28/F#400目棕剛玉微是以鋁礬土、無(wú)煙煤、鐵屑作為主要原料，在電弧爐內(nèi)經(jīng)高溫?zé)捴贫桑首睾稚?，韌性好，顯微硬度1800-2200kg/mm2,體積密度3.85g/cm3,耐高溫，耐火度高達(dá)1850℃，由于它具有耐高溫，強(qiáng)度高，耐侵蝕，耐磨損等優(yōu)良性能，所以在耐火材料和磨料磨具行業(yè)被廣泛使用，可做耐火材料和磨料。 Al2O3 ≥95.0% SiO2 ≤1.5% TiO2 ≤3% Fe2O3 ≤0.5% 等級(jí)   硬度 ≥9 堆積密度 ≥1.75 g/cm3 顆粒密度 ≥3.97g/cm3 磁性物含量 ≤0.038% 用途 陶瓷樹(shù)脂磨具，噴砂，研磨和拋光，并廣泛應(yīng)用于防滑耐磨跑道，耐高溫基本鍍成，冶金化工等工業(yè)窯爐的耐火材料，是噴砂除銹，清理工件，研磨拋光等理想材料 用途       廣泛用于普通鋼材的粗磨，如：碳素鋼，一般合金鋼，可鍛鑄鐵，硬青銅等。用于制造陶瓷、樹(shù)脂高固結(jié)磨具以及研磨、拋光等，棕剛玉還可廣泛應(yīng)用于耐火材料的制造 精煉棕剛玉適用于制造陶瓷、樹(shù)脂高固結(jié)磨具以及研磨、拋光等，棕剛玉還可廣泛應(yīng)用于耐火材料的制造.