VESSEL FOR SINTERING RARE EARTH MAGNET AND METHOD FOR PRODUCING RARE EARTH MAGNET USING THE SAME

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PROBLEM TO BE SOLVED : To provide a lightweight vessel for sintering a rare earth magnet having high strength and suppressing the deformation of a compact and the variation of its magnetic properties. SOLUTION : The vessel is used, in a sintering stage for the compact of magnet raw material powder comprising rare earth elements, for storing the compact, and the main part is composed of a carbon fiber-reinforced carbon composite material. The thermal conductivity of the carbon fiber-reinforced carbon composite material is ≤30 W/(m×°C). The vessel comprises : a vessel main body 3 whose upper face forms an opening part; and a cover body 4 capable of closing the opening part. The vessel main body 3 and the cover body 4 are composed of a carbon fiber-reinforced carbon composite material. Planking composed of a carbon fiber-reinforced carbon composite material is arranged at the bottom face. COPYRIGHT : (C)2007, JPO&INPIT