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1. RU02401881 - COATING METHOD AND DEVICE, PERMANENT MAGNET AND METHOD OF MAKING SAID MAGNET

Office Russian Federation
Application Number 2007138551/02
Application Date 14.03.2006
Publication Number 02401881
Publication Date 20.10.2010
Grant Number
Grant Date 20.10.2010
Publication Kind C2
IPC
C23C 14/56
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
22characterised by the process of coating
56Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
H01F 1/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
01of inorganic materials
03characterised by their coercivity
032of hard-magnetic materials
04metals or alloys
06in the form of particles, e.g. powder
08pressed, sintered, or bound together
C23C 14/24
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
22characterised by the process of coating
24Vacuum evaporation
B22F 3/12
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
12Both compacting and sintering
CPC
C23C 14/16
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
06characterised by the coating material
14Metallic material, boron or silicon
16on metallic substrates or on substrates of boron or silicon
C23C 14/243
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
22characterised by the process of coating
24Vacuum evaporation
243Crucibles for source material
C23C 14/541
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
22characterised by the process of coating
54Controlling or regulating the coating process
541Heating or cooling of the substrates
H01F 1/0571
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
01of inorganic materials
03characterised by their coercivity
032of hard-magnetic materials
04metals or alloys
047Alloys characterised by their composition
053containing rare earth metals
055and magnetic transition metals, e.g. SmCo5
057and IIIa elements, e.g. Nd2Fe14B
0571in the form of particles, e.g. rapid quenched powders or ribbon flakes
H01F 10/126
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
10Thin magnetic films, e.g. of one-domain structure
08characterised by magnetic layers
10characterised by the composition
12being metals or alloys
126containing rare earth metals
H01F 41/0293
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
02for manufacturing cores, coils, or magnets
0253for manufacturing permanent magnets
0293diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
Inventors НАГАТА Хироси (JP)
СИНГАКИ Йосинори (JP)
NAGATA Khirosi (JP)
SINGAKI Josinori (JP)
Priority Data 2005-080021 18.03.2005 JP
Title
(EN) COATING METHOD AND DEVICE, PERMANENT MAGNET AND METHOD OF MAKING SAID MAGNET
(RU) СПОСОБ И УСТРОЙСТВО НАНЕСЕНИЯ ПОКРЫТИЯ, ПОСТОЯННЫЙ МАГНИТ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ
Abstract
(EN)
FIELD: physics. SUBSTANCE: permanent magnet is made by applying a Dy coating onto the surface of a Fe-B-rare-earth element magnet having a predetermined configuration and diffusion of Dy deposited on the surface of the magnet into boundary phases of crystalline grains of the magnet through thermal treatment at a predefined temperature. The step for applying the coating involves a first stage for heating a working chamber used at the step for applying the coating and creating an atmosphere of metal vapours inside the working chamber by evaporating evaporable metallic material inside the working chamber, and a second step for putting the magnet into the working chamber whereby the said magnet is kept at temperature lower than that of the working chamber, and then selective deposition of the evaporated metallic material onto the surface of the magnet under the effect of temperature difference between the working chamber and the magnet while temperature of the magnet reaches a predefined value. EFFECT: increased efficiency of making a permanent magnet with low cost of the magnet. 21 cl, 12 dwg, 8 ex

(RU)
Изобретение относится к способу и устройству нанесения покрытия, способ изготовления постоянного магнита типа Fe-B-редкоземельные элементы, выполненный из спеченного магнита типа Fe-B-редкоземельные элементы. Технический результат заключается в повышении производительности изготовления постоянного магнита с обеспечением его низкой стоимости. Постоянный магнит изготавливают с помощью этапа нанесения покрытия из Dy на поверхность магнита типа Fe-B-редкоземельные элементы, имеющего заранее заданную конфигурацию, и этапа диффузии Dy, нанесенного на поверхность магнита, в пограничные фазы кристаллических зерен магнита с помощью термической обработки при заранее заданной температуре. Этап нанесения покрытия включает в себя первый этап нагревания рабочей камеры, используемой для проведения этапа нанесения покрытия, и создания атмосферы металлических паров внутри рабочей камеры путем испарения испаряемого металлического материала, предварительно размещенного внутри рабочей камеры, и второй этап введения в рабочую камеру магнита, поддерживавшегося при более низкой температуре, чем температура в рабочей камере, и последующего селективного осаждения испаряемого металлического материала на поверхность магнита под действием разницы температур между температурой в рабочей камере и температурой магнита, пока магнит достигает заранее заданной температуры. 4 н. и 17 з.п. ф-лы, 12 ил.