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              電熔白剛玉
              添加日期:2011/10/17 10:34:44   瀏覽次數:0   加入收藏

                      電熔白剛玉(White Fused Corundum)

                       白剛玉是以優質的鋁氧粉為原料經高溫電弧爐冶煉而成,它具有顏色潔白、體積密度大,純度高、硬度高、有良好的耐高溫,耐酸堿腐蝕性能特點,它不但是高級的磨料磨具材料,還是高級研磨、拋光材料。它還廣泛用于精密鑄造、鋼鐵耐火、化工耐火、裝飾瓷等各種陶瓷及日常生活用瓷,以及軍工、電子等高科技行業。

              White fused alumina is made from excellent industrial alunima and melted in arc furnaces at high temperature. It has the following characteristics such as nice white colour, firm bulk density, high hardness, good heat-resistance and acid resistance etc. It is not only the excellent raw material for manufacturing abrasive, but also the raw material for grinding and polishing. The product has been widely used in many high-tech industrials such as precision casting, steel refractory, chemical refractory, ceramics, military and electronics.

              物理性能
              Physical Properties
              化學成分
              Chemical composition (%)
              粒度砂
              Particle Size
              細粉
              Fine Powder
              主晶相:α-AL2O3
              Principel crystal phaseα-AL2O3
              AL2O3
              99
              98.5
              晶系:六方體
              Cystal system Hexzagon
              Na2O
              0.4
              0.4
              色澤:白色
              Colour and loustreWhite
              SiO2
              0.2
              0.25
              真密度(g/cm3):3.95
              Ture denstyg/cm3):3.95
              Fe2O3
              0.15
              0.5
              堆積密度 Packing densityg/cm3):1.75-1.95
              模式硬度   Mohs hardness 9
              線膨脹系數 Linear expansion Coefficent1/℃):8.3× 10-4   
              粒度尺Grain sizemm
              3-5 ,1-3 ,0-1
              細度Fine Powder(目mesh
              80 ,120 ,240 ,320
              微粉Micro Powdrμm
              3-5 ,5-10


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