초록 ▼

A method for making a casting nozzle, includes mixing a main casting nozzle material 70-95% by weight and electrofused aggregates 5-30% by weight, the electrofused aggregates consisting essentially of ZrO2 30-60% by weight, Al2O3 20-50% by weight, SiO2 10-20% by weight and SiC 5-40% by weight togeth

A method for making a casting nozzle, includes mixing a main casting nozzle material 70-95% by weight and electrofused aggregates 5-30% by weight, the electrofused aggregates consisting essentially of ZrO2 30-60% by weight, Al2O3 20-50% by weight, SiO2 10-20% by weight and SiC 5-40% by weight together with a binder, thereby to make a mixture, forming the mixture in the shape of a casting nozzle thereby to make a formed body, and sintering the formed body.

대표청구항 ▼

A method for making a casting nozzle comprising the steps of: providing a first mixture consisting essentially of: about 30-60 wt.% ZrO2 about 20-50 wt.% Al2O3 about 10-20 wt.% SiO2 about 5-40 wt.% SiC electrofusing said first mixture to form electrofused aggregates; mixing (1) about 70-95 wt.% of a

A method for making a casting nozzle comprising the steps of: providing a first mixture consisting essentially of: about 30-60 wt.% ZrO2 about 20-50 wt.% Al2O3 about 10-20 wt.% SiO2 about 5-40 wt.% SiC electrofusing said first mixture to form electrofused aggregates; mixing (1) about 70-95 wt.% of a primary casting nozzle material comprising alumina and carbon with (2) about 5-30 wt.% of said electrofused aggregates together with a binder to form a second mixture; shaping said second mixture into the shape of a casting nozzle to thereby make a formed body; and sintering the formed body to produce the casting nozzle.