| 摘要 |
Rotor A rotor stem forming part of a rotary valve assembly for use with apparatus for handling of molten material, especially metal comprises a longitudinal body 21, formed from refractory materials by an isostatic pressing method, having one end 30; 40 adapted to receive a driving component, wherein said end contains, for attachment of an inert gas gas feed pipe 31; 41, a coupler 32; 42 which is co-pressed into the body during forming thereof by isostatic pressing and is formed of thin metal or from high strength ceramic material to allow direct fastening of the feed pipe by threaded connection or compression joint to a substantially solid rotor head. (Fig. 2)
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