Corundum dry ramming material takes boron oxide as a sintering agent, as Al2O3 and B2O3 can form inconsistent molten compound
of 9Al2O3 and 2B2O3, the former melts decompose at 1035 ℃, the latter has melting point of 1965 ℃.
Eutectic temperature up to 1920 ℃ can be with good fire resistance. Using amount is usually less than 8%, the specific amount
shall be determined by experiment;
In addition, Al2O3-SiC-C dry vibration also use B2O3 as a sintering agent, which has no major impact on its performance.
Spinel dry ramming material commonly use Calcium aluminate material as a sintering agent with better effect.
of 9Al2O3 and 2B2O3, the former melts decompose at 1035 ℃, the latter has melting point of 1965 ℃.
Eutectic temperature up to 1920 ℃ can be with good fire resistance. Using amount is usually less than 8%, the specific amount
shall be determined by experiment;
In addition, Al2O3-SiC-C dry vibration also use B2O3 as a sintering agent, which has no major impact on its performance.
Spinel dry ramming material commonly use Calcium aluminate material as a sintering agent with better effect.
Email: js@jinshirefractory.com
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