HIGH-TEMPERATURE GAS BLOWER IMPELLER WITH VANES MADE OF DISPERSION-STRENGTHENED ALLOY, GAS BLOWER USING SUCH IMPELLER, AND GAS CIRCULATING FURNACE EQUIPPED WITH SUCH GAS BLOWER

摘要

AN IMPELLER FOR A HIGH-TEMPERATURE GAS BLOWER SUITABLE FOR A FLOATING CONVEYOR FURNACE, HAVING VANES EACH FORMED OF A DISPERSION-STRENGTHENED ALLOY WHICH INCLUDES AS A DISPERSE OR INTERNAL PHASE 0.1-2.0BY WEIGHT OF FINELY DIVIDED PARTICLES OF AN OXIDE OF A HIGH MELTING-POINT METAL, SUCH AS Y203'' CE2O3'' ZRO2, A1203 AND CD2O3'' PREFERABLY DISPERSED IN AN AUSTENITE MATRIX OR EXTERNAL PHASE OF CR, FE, AL, TI AND NI. A GAS BLOWER HAVING SUCH IMPELLER, AND A FURNACE USING SUCH GAS BLOWER ARE ALSO DISCLOSED.(FIG. 6)