【星光耐材】厂家****生产黑刚玉 ****黑刚玉细粉 ********
黑刚玉是以****的铝矾土为主原料,经电弧炉精练而成。而后经过完整的科学加工程序进行加工,铝含量大于80%。产品硬度适中,韧性较大*棱角锋利,自锐性强,抛光加工工件洁度高,其抛光性能大大高于国内外其他同类产品,广泛应用于餐具行业,电镀行业,金属表面处理行业,玻璃制品行业,目前,****为广泛地应用于不锈钢餐厨具,灯具灯饰摩托车零件,汽车配件等中等硬度材料的精细抛光,其抛光的各种性能、效果可于日本黑刚玉砂相媲美。目前,是公认的国内****替代是用国外黑刚玉砂进口材料的黑刚玉抛光
Black corundum
Black corundum is also known as low aluminum corundum. It is also a new type product of polishing material, and it is a dark gray crystal body made α-Al2O3 and ferropicotite a*ain ore in the electric arc furnace by *elting the bauxite. It has characteristics of moderate hardness, high toughness, high temperature resistance, and stable thermal stability. It i*ainly suitable for free grinding, such as coarse grinding before electroplating product*ainly for polishing and sandblasting of stainless steel, fabricated metal products.
Black corundum physical and chemical indicators:
Black corundum is also known as low aluminum corundum. It is also a new type product of polishing material, and it is a dark gray crystal body made α-Al2O3 and ferropicotite a*ain ore in the electric arc furnace by *elting the bauxite. It has characteristics of moderate hardness, high toughness, high temperature resistance, and stable thermal stability. It i*ainly suitable for free grinding, such as coarse grinding before electroplating product*ainly for polishing and sandblasting of stainless steel, fabricated metal products.
Black corundum physical and chemical indicators:
Specifications | Main Chemical Com*ition % | ||
Al2O3 | Fe2O3 | SiO2 | |
BA—Ⅰ | 81—85 | 9—11 | ≤8 |
BA—Ⅱ | 75—80 | 10—12 | ≤10 |
Black corundum physical performance indicators:
Item | Indicators |
Color | Black |
Crystal | Trigonal system |
Hardnes*ohs) | ≥ 9.0 |
Melting point (℃) | 2050 |
The maximum temperature (℃) | 1850 |
True Density (g/cm3) | ≥ 3. 50 |
Linear expansion coefficient (0-1600 ℃) | 7-9 |