Hydrogen- pulverizing mill for magnetic rare earth metal-alloy materials, method for producing a ma

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Apparatus for carrying out a hydrogen- pulverizing procedure at a magnetic Rare earth metal-alloy material, comprising : a hermetically closable hydrogen furnace, the a furnace body with an opening and a lid for closing the opening comprises; a loading chamber the temporary Receiving the magnetic rare earth metal-alloy material, when the magnetic rare earth metal-alloy material, with hydrogen has been pulverized, discharged from the furnace body through the aperture is; and means for introducing an inert gas into the loading chamber, characterized, that the device further a cooling system for introducing inert gas at room temperature and of inert gas, the further cooled has been, in the mentioned order in the hydrogen furnace has.