PROCESS FOR OBTAINING MAGNETICALLY ISOTROPIC METAL PERMANENT MAGNETS WITH HIGH COERCIVE FIELD

Procedeu de obtinere a magnetilor metalici permanenti cu câmp coercitiv mare, izotropi magnetic, conform caruia temperatura de turnare a aliajului este 1500 ... 1550 degree C, magnetii supunându-se apoi unui tratament de înmuiere la 1050 ... 1100 degree C, timp de1,5 h. Dupa preîncalzire la 800 degr...

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Hauptverfasser:	CARJAN GHEORGHE CORNEL, IONESCU ALEXANDRU FRED, MITU IOANA DELIA, IVAN ION, ALEXANDRU SREFANIA, KAPPEL WILHELM, STANCU NICOLAE
Format:	Patent
Sprache:	eng ; rum
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES MAGNETS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS
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creator	CARJAN GHEORGHE CORNEL IONESCU ALEXANDRU FRED MITU IOANA DELIA IVAN ION ALEXANDRU SREFANIA KAPPEL WILHELM STANCU NICOLAE
description	Procedeu de obtinere a magnetilor metalici permanenti cu câmp coercitiv mare, izotropi magnetic, conform caruia temperatura de turnare a aliajului este 1500 ... 1550 degree C, magnetii supunându-se apoi unui tratament de înmuiere la 1050 ... 1100 degree C, timp de1,5 h. Dupa preîncalzire la 800 degree C se face omogenizarea la 1240 degree C timp de 0,3 h, magnetii se lasa sa se raceasca liber pâna la 810... 820 degree C, dupa care se introduc într-un cuptor la 800 degree C mentinându-se 0,25 h, iar apoi se racesc liber în aer. Revenirease face dupa regimul 670 degree C timp de 3 h si 570 degree C timp de 12 h. Caracteristicile magnetice obtinutesunt: -Br indice min = 0,6 T, - Hc indice min = 92 kA/m, - (BH) indice max indice min = 17,6 kJ/m la cub. Acest tip de magneti se foloseste pentru echip area rotoarelor masinilor electrice care necesita un numar de poli mai mare de 2.
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Dupa preîncalzire la 800 degree C se face omogenizarea la 1240 degree C timp de 0,3 h, magnetii se lasa sa se raceasca liber pâna la 810... 820 degree C, dupa care se introduc într-un cuptor la 800 degree C mentinându-se 0,25 h, iar apoi se racesc liber în aer. Revenirease face dupa regimul 670 degree C timp de 3 h si 570 degree C timp de 12 h. Caracteristicile magnetice obtinutesunt: -Br indice min = 0,6 T, - Hc indice min = 92 kA/m, - (BH) indice max indice min = 17,6 kJ/m la cub. 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subjects	BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES MAGNETS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS
title	PROCESS FOR OBTAINING MAGNETICALLY ISOTROPIC METAL PERMANENT MAGNETS WITH HIGH COERCIVE FIELD
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