| 材质 | 密度：3.90 g/cm3 |
|---|---|
| 规格 | Al2O397% |
| 粒度 | 111111 |
| 适用范围 | 刹车片、磨具磨料 |
| 种类 | 刚玉 |
| 品牌 | 都鑫 |
| 型号 | 0218 |
项目Item | 单位Unit | 检测结果Test Result |
粒度 Size | mesh | 300&400-800 |
氧化铝含量 Al2O3 content | % | ≥90 |
氧化铁 Fe2O3 content | % | ≤2 |
氧化硅 SiO2 content | % | ≤4 |
俗名又称金刚砂,是用矾土、碳素材料、铁屑三种原料在电炉中经过融化还原而制得的棕褐色人造刚玉。由于刚玉硬度高，提高摩擦系数的程度高于氧化铝，极小用量**足以产生良好的增摩效果。用量增加磨损率急剧增大，所以一般用量很少超过1.5%，且目度**低大于320目**细度在400-800目。
Brownalumina
The nameis also called emery, with alumina, carbon materials, iron three kinds of rawmaterials in the furnace by melting reduction and preparation of brown alundum.Because the corundum high hardness, friction coefficient is higher than theincrease of alumina, the minimum amount is enough to produce goodfriction-increasing effect. With increasing the content of the wear rateincreases rapidly, so the normal dosage of little more than 1.5%, and the goalis the lowest in more than 320 orders, the best fineness in 400-800.
