Alumina Ceramic Tubes

The ceramic tube has the high abrasion resistant,corrosion resistant,and heat proof property,so it can be used widely in many trades,such as mine,electrical power,metallurgy coal,chemical etc as media for conveying grinding particles and corrosion materials ,such as sand, coal power,clinker and aluminum liquid hence a perfect abrasion resistant and corroiion resistant tube Technical indicatorProjectTest the conditionUnit99 porcelain95 porcelainTalc porcelainBackbone99%AL2O395%AL2O3MgO.SiO2Physical propertyDensity of volumeNormal atmospheric temperatureg/cm33.83.62.8AirtightNormal atmospheric temperaturePassPass—Absorbing water rateNormal atmospheric temperature%000Temperature that frit°C180016501350Mechanical performanceRockwell hardnessNormal atmospheric temperatureHRA888676Resist the intensity of turning backNormal atmospheric temperatureMpa350320150Compression strengthNormal atmospheric temperatureMpa13001200900Hot performanceUse temperature at most°C170016001200Heat resistant shaking20O°C-1100O°C10NumPassPassPassHot coefficient of expansion20O°C-80O°C×10-6mm/°C6.5-8.56.5-8.05.0-6.2Heat-conduction rate25°CW/m.k29252.9300°CW/m.k18132Dielectric constantThe medium lossing1MHz2O°C×10-4≤2.5≤4≤8.0The angle tangent is worth1MHz8O°C×10-4≤3.5≤4.2—Dielectric strengthNormal atmospheric temperatureKV/mm151620Dielectric constant1MHz2O°C9-10.59-10≤7.5Resistivity of volume2O°CΩ.cm>1012>1012>101310O°CΩ.cm1012-10131012-10131010-101130O°CΩ.cm>10123.1×1095×108