Алюминий полый шар

the composition of the sillicate particles,the melting point of 1600 1700, the Sub-heated expansion of the obturator from the ball, there are many within the hole, with the noise absorption , strong absorption of the characteristics of sillicate hollow ball with a low hardness,The proportion of the light, particle size, and the characteristics of high porosity ,Applied Materials by the permeability and reduce the production at the crack and let bubble phenomenon and improve performance Sio2 Applied Materials less than 73%:Al2O3 more than 15%,Fe2O3 less than 1.5%,Cao is less than 1.5% Size :40 100 heads Density:200 450(Kg/cm3) Material:Aluminium Sillo standard: Aluminium hollow ball Alumina Silicate Hollow Ball Physical And Chemical IndicatorsItemsTypical PropertiesAl2O3(%)40—70SiO2(%)30—50Fe2O3(%)1—3(g/cm3)Bulk Density≤0.55(°C ) Refracoriness≥1700°C Strength(Mpa) Load0.51.02.04.0(%) Shrinkage≤1.8≤3.5≤4.5≤5.0ApplicationInsulating Matorial