产品名称NAME：Calcined Alumina（煅烧氧化铝）
产品描述PRODUCTION DESCRIPTION：
Alumina is an inorganic friction raw material filler, and it can greatly increase friction coefficient due to its high mohs scale of hardness. It is widely used as friction raw material filler in friction industry, since it is one of the most efficient friction performance modifier for friction increasing. Usually, its granule is controlled above 325 mesh, and its Al2O3 content or purity shall be up to 80%. This grade of alumina will contribute more on friction increasing.
颗粒度GRANULARITY（筛网分析 SIEVE ANALYSIS，颗粒大小PARTICLE SIZE）
目数Mesh： #400
外观 APPEARANCE
形状Shape： Powder
颜色Color： White
主要技术参数MAIN SPECIFICATION
比重 Specific gravity(g/cc, g/cm3) 5.0-6.0
容积密度 Bulk Density(g/cc, g/cm3) 0.77-0.95
吸油量 Oil absorption（%） 12-22
硬度 Hardness(Mohs) 7.2-7.5
含水量 Moisture Rate(%) ≤1.0%
熔点Melting point (℃) 2050℃
105℃挥发份含量Volatile content(％) ≤0.1%
化学成分 CHEMICAL COMPOSITION
| 组成Composition | Al2O3 | Fe2O3 | SiO2 |
| 比例Rate（%w.t.） | ≥98 | 0.03 | 0.02 |
包装跟存贮PACKAGE AND STORAGE
1. 25KG/bag, double sheet paper bags, white color; 1 carton = 2 bags, 1 pallet = 42 cartons.
2. Opened bags must be carefully resealed and kept upright to prevent leakage. Stored in original packages in a dry, cool and well ventilated areas to prevent from direct sunlight.
3. Use appropriate to avoid environment contamination.