铬刚玉粉红色电熔氧化铝 铬刚玉是以氧化铝为主要原料,适配氧化铬等。经高温熔炼而成。呈粉红色、硬度与白刚玉近似,韧性比白刚玉高。用其制造的磨具,耐用度好,磨加工光洁度高。适用于量具,机床主轴,仪表零件、螺纹工件及样板磨等精密磨削。 lts main material is bayer alumina,which is electrically fused in high temperature,being added with the right quantity of oxidized chromium. lt is pink.lts hardness is close to,but toughness higher than that or WA.The abrasive tools made of it feature excellent durability and high processing cleanness,which are suitable for the precision grinding of the measuring tools,lathe main shafts,instruments and apparatus parts,threading workpieces and samplers,etc. 化学成分:Chemical composition 低铬 Low chromium | 中铬 Medium chromium | 高铬 High chromium | Al2O3 (%) | Cr2O3 (%) | Na2O (%) | Al2O3 (%) | Cr2O3 (%) | Na2O (%) | Al2O3 (%) | Cr2O3 (%) | Na2O (%) | ≥98.50 | 0.20-0.45 | ≤0.50 | ≥98.20 | 0.45-1.00 | ≤0.55 | ≥97.40 | 1.00-2.00 | ≤0.55 | ≥98.50 | 0.20-0.45 | ≤0.50 | ≥98.20 | 0.45-1.00 | ≤0.60 | ≥97.00 | 1.00-2.00 | ≤0.60 | ≥98.50 | 0.20-0.45 | ≤0.50 | ≥98.80 | 0.45-1.00 | ≤0.70 | ≥96.50 | 1.00-2.00 | ≤0.70 |
物理性能:Physical property 基本矿物 Basic minerals | 晶体尺寸 Crystal size μm | 真比重 True density g/cm3 | 堆积密度 Bulk density g/ cm3 | 显微硬度 Knoop hardness kg/mm2 | α-Al2O3 | 600-2000 | ≥3.90 | 1.40-1.91 | 2200-2300 |
用途: 铬刚玉砂轮用于工具钢,不锈钢,淬火钢的内圆磨,工具磨,仿型磨,成型磨,刀具,量具,螺纹工件,仪表零件等的精密磨削。 用其制造的磨具适用于磨削高碳钢,高速钢及其薄壁零件,磨料还可作研磨、抛光材料、精密铸造型砂、喷涂材料等。 常规生产粒度:F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 F240 F280 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W1
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