PURPOSE: To produce a vane which stirs a molten metal of a high temp. by compounding a specific amt. of ceramics powder with coke powder, sintering the powder mixture and forming a composite carbon-ceramics material having specific bending strength.
CONSTITUTION: A composite carbon-ceramics material having ≥200kg/cm2 bending strength is prepd. by compounding 10W50vol% ceramics powder with coke powder and sintering the powder mixture in an about 1,000W2,300°C range under pressure or atm. pressure. Only the boron carbide is used or the boron carbide and further ≥1 kind selected from carbide such as silicon carbide, boride such as titanium boride and oxide such as aluminum oxide are used as the ceramics powder. The vane obtd. by using such composite material withstands substantially stirring of a molten metal having a high temp. of about 300W1,200°C.
OGAWA ICHITAROU
YOSHIDA HISAYOSHI
KOBAYASHI KAZUO
HAGIO TAKESHI
UENO HIDETOSHI
AKIYAMA SHIGERU
| JP46017764U | ||||
| JPS5838386A | 1983-03-05 | |||
| JPS5443910A | 1979-04-06 |
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