Fused quartz crucibles are made of selected fused silica as the
main raw material and processed bymodern ceramic technology. It is
mainly used for melting of platinum, gold, medical dental alloys
andother high-temperature alloys. The product has high purity and
corrosion resistance. The content of the main component SIO2 is not
less than 98%, the content of impurities (K2O, Na2O, Fe2O3) is not
greaterthan 70Mpa, the thermal shock resistance is high, and the
repeated operation of 1100 ºC --waterquenching is more than 10
times, and it is still intact,long life.ItemUnitDataSiO2
Contentwt%≥99.5Bulk Densityg/cm31.80-1.90Apparent
Porosity%14-17Moh's Hardness 6Compression Strength Under
Normal TemperatureMPA≥50Coefficient of Thermal
Expansion×10-6/C≤0.91Thermal Conductivityw/m.C0.86 /* January
22, 2024 19:08:37 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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