| 简介 |
FIELD : metallurgy.
SUBSTANCE : evaporative material includes a core made from high-melting metal with thermal capacity per unit volume of at least 2 MJ/K·m3 and having through holes. The core is coated with rare-earth metal or its alloy by melting of rare-earth metal or its alloy, submersion of the core into a molten bath of rare-earth metal or its alloy, extraction of the core from it and hardening of molten rare-earth metal or its alloy on the core surface. A method for obtaining the above evaporative material involves formation of a solidified body from rare-earth metal or its alloy by melting of rare-earth metal or its alloy, submersion of the base made from high-melting metal having thermal capacity per unit volume of at least 2 MJ/K·m3 to molten bath of rare-earth metal or its alloy at maintaining the base at the temperature below the fusion temperature of rare-earth metal or its alloy and further extraction of the base with formation on the base surface of solidified body, separation of solidified body from the base and treatment of separated solidified body till plate-like shape.
EFFECT : obtaining evaporative material for manufacture of magnets with increased coercitive force, which can be treated till plate-like shape.
13 cl, 10 dwg, 3 ex |
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