BE748617A - Procede pour preparer une poudre metallique magnetiquement stable essentiellement constituee par du fer, destinee a l'enregistrement magnetique - Google Patents
Procede pour preparer une poudre metallique magnetiquement stable essentiellement constituee par du fer, destinee a l'enregistrement magnetiqueInfo
- Publication number
- BE748617A BE748617A BE748617DA BE748617A BE 748617 A BE748617 A BE 748617A BE 748617D A BE748617D A BE 748617DA BE 748617 A BE748617 A BE 748617A
- Authority
- BE
- Belgium
- Prior art keywords
- iron
- preparing
- intended
- magnetic recording
- metal powder
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/008—Use of special additives or fluxing agents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/065—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder obtained by a reduction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Hard Magnetic Materials (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6905417.A NL163355C (nl) | 1969-04-08 | 1969-04-08 | Werkwijze ter bereiding van een in hoofdzaak uit ijzer bestaand magnetisch stabiel metaalpoeder, voor magnetische registratie. |
Publications (1)
Publication Number | Publication Date |
---|---|
BE748617A true BE748617A (fr) | 1970-10-07 |
Family
ID=19806638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE748617D BE748617A (fr) | 1969-04-08 | 1970-04-07 | Procede pour preparer une poudre metallique magnetiquement stable essentiellement constituee par du fer, destinee a l'enregistrement magnetique |
Country Status (10)
Country | Link |
---|---|
US (1) | US3627509A (de) |
JP (1) | JPS497313B1 (de) |
AT (1) | AT306764B (de) |
BE (1) | BE748617A (de) |
CH (1) | CH544389A (de) |
DE (1) | DE2014500C3 (de) |
FR (1) | FR2043067A5 (de) |
GB (1) | GB1260646A (de) |
NL (1) | NL163355C (de) |
SE (1) | SE349690B (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3902888A (en) * | 1971-08-19 | 1975-09-02 | Fuji Photo Film Co Ltd | Process for preparing ferromagnetic alloy powder |
DE2212933A1 (de) * | 1972-03-17 | 1973-09-20 | Philips Nv | Verfahren zur herstellung eines im wesentlichen aus eisen bestehenden metallpulvers |
NL167729C (nl) * | 1973-05-03 | 1982-01-18 | Philips Nv | Werkwijze voor het bereiden van een hoofdzakelijk uit ijzer bestaand metaalpoeder. |
DE2361539C2 (de) * | 1973-12-11 | 1984-06-20 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur Herstellung eines ferromagnetischen, überwiegend aus Eisen bestehenden Materials |
US4043846A (en) * | 1975-03-17 | 1977-08-23 | Hitachi, Ltd. | Method of producing ferromagnetic metal powder by gaseous reduction of silicon compound-coated raw material |
DE2646348C2 (de) * | 1976-10-14 | 1986-08-28 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von nadelförmigen, ferromagnetischen, im wesentlichen aus Eisen bestehenden Metallteilchen und deren Verwendung zur Herstellung von magnetischen Aufzeichnungsträgern |
US4165232A (en) * | 1978-09-15 | 1979-08-21 | Basf Aktiengesellschaft | Manufacture of ferromagnetic metal particles essentially consisting of iron |
US4305752A (en) * | 1979-07-30 | 1981-12-15 | Pfizer Inc. | Metallic iron particles for magnetic recording |
US4256484A (en) * | 1979-07-30 | 1981-03-17 | Pfizer Inc. | Metallic iron particles for magnetic recording |
DE2935357A1 (de) * | 1979-09-01 | 1981-09-10 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen und deren verwendung |
DE2935358A1 (de) * | 1979-09-01 | 1981-03-26 | Basf Ag, 67063 Ludwigshafen | Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen und deren verwendung |
DE3228669A1 (de) * | 1982-07-31 | 1984-02-02 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung nadelfoermiger, im wesentlichen aus eisen bestehender ferromagnetischer metallteilchen |
JP4779092B2 (ja) * | 2005-07-28 | 2011-09-21 | Dowaエレクトロニクス株式会社 | 低ノイズ媒体に適した磁性粉末 |
-
1969
- 1969-04-08 NL NL6905417.A patent/NL163355C/xx not_active IP Right Cessation
-
1970
- 1970-03-25 DE DE2014500A patent/DE2014500C3/de not_active Expired
- 1970-04-01 US US24822A patent/US3627509A/en not_active Expired - Lifetime
- 1970-04-03 CH CH496370A patent/CH544389A/de not_active IP Right Cessation
- 1970-04-03 GB GB15964/70A patent/GB1260646A/en not_active Expired
- 1970-04-06 SE SE04678/70A patent/SE349690B/xx unknown
- 1970-04-06 AT AT311970A patent/AT306764B/de not_active IP Right Cessation
- 1970-04-06 JP JP45028681A patent/JPS497313B1/ja active Pending
- 1970-04-07 BE BE748617D patent/BE748617A/xx unknown
- 1970-04-08 FR FR7012651A patent/FR2043067A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2014500B2 (de) | 1976-04-15 |
US3627509A (en) | 1971-12-14 |
GB1260646A (en) | 1972-01-19 |
NL163355B (nl) | 1980-03-17 |
FR2043067A5 (de) | 1971-02-12 |
SE349690B (de) | 1972-10-02 |
JPS497313B1 (de) | 1974-02-19 |
DE2014500C3 (de) | 1978-06-08 |
CH544389A (de) | 1973-11-15 |
DE2014500A1 (de) | 1970-12-10 |
NL163355C (nl) | 1980-08-15 |
AT306764B (de) | 1973-04-25 |
NL6905417A (de) | 1970-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE748617A (fr) | Procede pour preparer une poudre metallique magnetiquement stable essentiellement constituee par du fer, destinee a l'enregistrement magnetique | |
BE794292A (fr) | Procede de preparation d'oxydes de fer magnetiques aciculaires finement divises | |
BE792847A (fr) | Procede de preparation d'oxydes de fer magnetiques aciculaires | |
PH10737A (en) | Magnetic recording medium incorporating fine acricular iron based particles | |
BE774828A (fr) | Procede pour ameliorer des pieces coulees | |
NL160106B (nl) | Werkwijze ter bereiding van een in hoofdzaak uit ijzer bestaand magnetisch stabiel poeder, voor magnetische registratie. | |
BE796831A (fr) | Procede de preparation d'une poudre metallique consistant principalement en fer | |
RO62785A (fr) | Procede pour la preparation des complexes a fer des derives d'acide ethylendiaminotetraacetique | |
FR2274705A1 (fr) | Procede pour produire des alliages ferreux austenitiques et alliages et articles obtenus par ce procede | |
FR1421091A (fr) | Procédé d'amélioration des minerais de fer magnétiques | |
BE814478A (fr) | Procede de preparation d'une poudre metallique comportant principalement du fer | |
BE855424A (fr) | Procede et composition pour le depot electrolytique de nickel, cobalt, et alliages de ceux-ci avec le fer | |
BE822148A (fr) | Procede de soudage a l'arc plasma simple de pieces de fonte | |
BE822255A (fr) | Procede pour precipiter des complexes d'ions metalliques lourds de polycarboxylates | |
BE821841A (fr) | Compositions et procede d'electodeposition d'alliages de nickelet de cobalt avec du fer | |
BE792732A (fr) | Procede pour decarburer rapidement des alliages de fer au moyend'oxygene | |
BE759944A (fr) | Procede de fabrication d'une poudre de lait | |
IT976646B (it) | Procedimento per produrre leghe di ferro cobalto | |
FR2311110A1 (fr) | Procede pour le depot electrolytique de nickel, de cobalt et de leur alliage avec du fer | |
SU464654A1 (ru) | Магнитотвердый сплав на основе железа | |
BE831873A (fr) | Procede de reduction d'un minerai de fer | |
BE749200R (fr) | Procede de fabrication d'additions carbonees douees d'une action optimale pour sables de | |
CH541370A (fr) | Machine pour le façonnage d'un objet métallique par magnétoformage | |
GB1445737A (en) | Inserting cores into casting moulds | |
BE830569A (fr) | Poudre de fer alliee a du bore pour metaux de remplissage |