砂轮30目36目60目铬刚玉砂
铬刚玉化学指标:
化学成分 Chemical composition
粒度范围 Grit size range | 低铬 | 中铬 | 高铬 | |||||||
Al2O3 | Cr2O3 | Na2O | Al2O3 | Cr2O3 | Na2O | Al2O3 | Cr2O3 | Na2O | ||
F12-F80 | ≥98.50 | 0.2-0.45 | ≤0.50 | ≥98.20 | >0.45-1.0 | ≤0.55 | ≥97.40 | >1.0-2.0 | ≤0.55 | |
F90-F150 | ≥98.50 | ≤0.50 | ≥98.20 | ≤0.60 | ≥97.00 | ≤0.60 | ||||
F180-F220 | ≥98.50 | ≤0.50 | ≥98.80 | ≤0.70 | ≥96.50 | ≤0.7 |
铬刚玉物理性能:Physical property
基本矿物 | 晶体尺寸 | 真比重 | 堆积密度 | 显微硬度 |
α-Al2O3 | 600-2000 | ≥3.90 | 1.40-1.91 | 2200-2300 |
铬刚玉图片: