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Koninklijke Philips NV
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Philips Gloeilampenfabrieken NV
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Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Publication of ES226117A1publicationCriticalpatent/ES226117A1/en
Method of manufacturing anisotropic permanent magnets hardened in a magnetic field and containing up to 42% co, 10 to 20% ni, 6 to 10% al, 2 to 8% cu, and 4 to 10% ti and fe, and which have a higher coercive force than 900 oersted and a high value (bh) max, characterized by the fact that the alloy containing between 15 to 42% of co is tempered from a temperature higher than 1200ºc up to minus 900ºC and is maintained under the action of a magnetic field in a temperature range of 10 to 70ºC below the curie temperature between 2 to 30 minutes, preferably at least 4 minutes, at a temperature at least substantially constant which varies at less than 20ºC in order to obtain a value of (bh) max in 700000 caus.oersted that the value (bh) max reached in accordance with the usual cooling of at least 30ºC per minute, in said temperature range. (Machine-translation by Google Translate, not legally binding)
ES0226117A1955-01-191956-01-16A method of manufacture of permanent anisotropic magnets (Machine-translation by Google Translate, not legally binding)
ExpiredES226117A1
(en)
A method for the manufacture of permanent magnetically anisotropic images based on iron, containing nor, al and co as main elements (Machine-translation by Google Translate, not legally binding)
A method of manufacture of permanent magnetically anisotropic images based on iron, containing nor, al and co as main elements (Machine-translation by Google Translate, not legally binding)