DE29903607U1 - NdFeB magnets - Google Patents

NdFeB magnets

Info

Publication number
DE29903607U1
DE29903607U1 DE29903607U DE29903607U DE29903607U1 DE 29903607 U1 DE29903607 U1 DE 29903607U1 DE 29903607 U DE29903607 U DE 29903607U DE 29903607 U DE29903607 U DE 29903607U DE 29903607 U1 DE29903607 U1 DE 29903607U1
Authority
DE
Germany
Prior art keywords
protective layer
magnets
ndfeß
metal foil
ndfeb magnets
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE29903607U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MACO GmbH
Original Assignee
MACO GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MACO GmbH filed Critical MACO GmbH
Priority to DE29903607U priority Critical patent/DE29903607U1/en
Publication of DE29903607U1 publication Critical patent/DE29903607U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus 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
    • H01F41/02—Apparatus 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 for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus 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 for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/026—Apparatus 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 for manufacturing cores, coils, or magnets for manufacturing permanent magnets protecting methods against environmental influences, e.g. oxygen, by surface treatment

Description

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (3)

1. NdFeß-Magnete mit Schutzschicht nach dem Magnequench-Verfahren mit Heißpressen/ Warmfließpressen hergestellt, dadurch gekennzeichnet, dass die Schutzschicht aus einer durch Temperatur von mehr als 700°C im Herstellungsprozess angesinterten Metallfolie besteht.1. NdFeß magnets with a protective layer according to the Magnequench process with hot presses / hot extrusion, characterized in that the protective layer consists of a metal foil sintered by temperature of more than 700 ° C in the manufacturing process. 2. NdFeß-Magnete mit Schutzschicht nach Anspruch 1, dadurch gekennzeichnet, dass diese Schutzschicht in Form von Platinen oder Hülsen bzw. Bechern den Magneten teilweise bis vollständig bedeckt und umschließt.2. NdFeß magnets with protective layer according to claim 1, characterized in that this Protective layer in the form of boards or sleeves or cups partially the magnet until completely covered and enclosed. 3. NdFeß-Magnete mit Schutzschicht aus Metallfolie gemäß Anspruch 1 und Anspruch 2, dadurch gekennzeichnet, dass die Metallfolie vorzugsweise aus 50 . . . 500 µm dickem nicht- bzw. schwachmagnetischen Materialien mit einer Schmelztemperatur < 800°C bestehen.3. NdFeß magnets with protective layer of metal foil according to claim 1 and claim 2, characterized in that the metal foil is preferably made of 50th . . 500 µm thick non- or weakly magnetic materials with a melting temperature <800 ° C consist.
DE29903607U 1999-02-28 1999-02-28 NdFeB magnets Expired - Lifetime DE29903607U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29903607U DE29903607U1 (en) 1999-02-28 1999-02-28 NdFeB magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29903607U DE29903607U1 (en) 1999-02-28 1999-02-28 NdFeB magnets

Publications (1)

Publication Number Publication Date
DE29903607U1 true DE29903607U1 (en) 2000-04-13

Family

ID=8070090

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29903607U Expired - Lifetime DE29903607U1 (en) 1999-02-28 1999-02-28 NdFeB magnets

Country Status (1)

Country Link
DE (1) DE29903607U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016014526A1 (en) * 2016-12-07 2018-06-07 Wilo Se Permanent magnet rotor for an electric machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5154978A (en) * 1989-03-22 1992-10-13 Tdk Corporation Highly corrosion-resistant rare-earth-iron magnets
DE4242799A1 (en) * 1991-12-17 1993-06-24 Hitachi Metals Ltd Permanent magnet with ferrite and rare earth material and protective surface - provided by nickel@ or nickel@ alloy avoiding corrosion caused by external effects.
DE19512888A1 (en) * 1995-04-06 1996-10-10 Vacuumschmelze Gmbh Process for the electrolytic coating of rare earth permanent magnets with minimal surface damage
DE19608731A1 (en) * 1996-03-06 1997-09-11 Vacuumschmelze Gmbh Process for improving the corrosion protection of aluminum-coated surfaces
DE19751710A1 (en) * 1997-11-21 1999-05-27 Leybold Systems Gmbh Magnet with a corrosion protection coating
EP0923087A1 (en) * 1996-08-30 1999-06-16 Sumitomo Special Metals Company Limited Corrosion-resistant permanent magnet and method for manufacturing the same
EP0924715A2 (en) * 1997-12-19 1999-06-23 Shin-Etsu Chemical Co., Ltd. Rare earth-based permanent magnet of high corrosion resistance

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5154978A (en) * 1989-03-22 1992-10-13 Tdk Corporation Highly corrosion-resistant rare-earth-iron magnets
DE4242799A1 (en) * 1991-12-17 1993-06-24 Hitachi Metals Ltd Permanent magnet with ferrite and rare earth material and protective surface - provided by nickel@ or nickel@ alloy avoiding corrosion caused by external effects.
DE19512888A1 (en) * 1995-04-06 1996-10-10 Vacuumschmelze Gmbh Process for the electrolytic coating of rare earth permanent magnets with minimal surface damage
DE19608731A1 (en) * 1996-03-06 1997-09-11 Vacuumschmelze Gmbh Process for improving the corrosion protection of aluminum-coated surfaces
EP0923087A1 (en) * 1996-08-30 1999-06-16 Sumitomo Special Metals Company Limited Corrosion-resistant permanent magnet and method for manufacturing the same
DE19751710A1 (en) * 1997-11-21 1999-05-27 Leybold Systems Gmbh Magnet with a corrosion protection coating
EP0924715A2 (en) * 1997-12-19 1999-06-23 Shin-Etsu Chemical Co., Ltd. Rare earth-based permanent magnet of high corrosion resistance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016014526A1 (en) * 2016-12-07 2018-06-07 Wilo Se Permanent magnet rotor for an electric machine
EP3334012A1 (en) * 2016-12-07 2018-06-13 Wilo Se Permanent magnet rotor for an electric machine

Similar Documents

Publication Publication Date Title
DE69522358T2 (en) Electromagnetic steel plate with highly corrosion-resistant insulating layer and core for use in motors and transformers made from the electromagnetic steel plate
DE69113966T2 (en) COMPOSITE POWDER MADE OF ALUMINUM OXIDE / METAL, CERMETS THEREOF AND METHOD FOR THE PRODUCTION THEREOF.
ATE491568T1 (en) IMPROVED ELECTRICAL CONDUCTIVITY AND HIGH STRENGTH ALUMINUM ALLOY COMPOSITE MATERIAL, METHOD OF PRODUCTION AND USE
DE69313253D1 (en) Iron alloy powder for sintering, sintered iron alloy with abrasion resistance and process for producing the same
DE69123183T2 (en) Composite material made of silver or silver-copper alloy with metal oxides and process for its production
DE3780588T2 (en) METHOD FOR PRODUCING A Sintered Anisotropic Rare-Earth Iron Boron Magnet With The Help Of Band-Like Chips From A Rare Earth Iron Boron Alloy.
DE3367621D1 (en) Composite material manufacturing method exothermically reducing metallic oxide in binder by element in matrix metal
DE69015035T2 (en) Process for producing sintered Fe-P alloy moldings with soft magnetic properties.
DE3585705D1 (en) TIN-CONTAINING IRON COMPOSITE POWDER, METHOD FOR THE PRODUCTION THEREOF AND TIN-CONTAINING SINTERED MAGNETIC MATERIAL.
DE29903607U1 (en) NdFeB magnets
DE3581715D1 (en) MAGNETIC HEAD WITH CORE PARTS MADE OF FERROMAGNETIC AMORPHEM METAL.
DE69121486T2 (en) Epoxy resin composition, hardened epoxy resin material and copper coated laminate
DE58906745D1 (en) Process for shaping and improving the mechanical properties of powder-metallurgically produced blanks from an alloy with increased heat resistance by extrusion.
DE3574981D1 (en) RESIN COMPOSITION AND LAMINATE formed therefrom.
HK1032247A1 (en) Permanent magnetic alloy with excellent heat resistance and process for producing the same
DE2503227C2 (en) Stator for an electric motor
EP0563379A4 (en) Magnetic resistance element and its manufacturing method, and magnetic sensor using the magnetic resistance element
DE2327136C3 (en) Magnetically conductive slot wedge for an electrical machine
DE20208815U1 (en) Tool identification
EP1067567A4 (en) Diskette type memory card adapter, magnetic sensor therefor magnetic core, method for manufacturing the magnetic core
DE1774800C3 (en) Process for making a low inductance memory matrix
DE3581538D1 (en) POLYAMINE-ION EXCHANGE RESINS WITH HIGH CAPACITY AND RESISTANCE TO OXYDING AGENTS AND METHOD FOR THE PRODUCTION THEREOF.
DE20103727U1 (en) Formwork system for shuttering precast concrete parts
DE69009917D1 (en) Fe-Si-Al alloy thin magnetic film and manufacturing method.
DE20013710U1 (en) PVC foam sheet

Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R163 Identified publications notified
R207 Utility model specification

Effective date: 20000518

R156 Lapse of ip right after 3 years

Effective date: 20020829