GB1114504A - Process for treating platinum-iron permanent magnet alloys - Google Patents

Process for treating platinum-iron permanent magnet alloys

Info

Publication number
GB1114504A
GB1114504A GB26272/65A GB2627265A GB1114504A GB 1114504 A GB1114504 A GB 1114504A GB 26272/65 A GB26272/65 A GB 26272/65A GB 2627265 A GB2627265 A GB 2627265A GB 1114504 A GB1114504 A GB 1114504A
Authority
GB
United Kingdom
Prior art keywords
alloy
platinum
range
permanent magnet
iron
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
Application number
GB26272/65A
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.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Publication of GB1114504A publication Critical patent/GB1114504A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0466—Alloys based on noble metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/04—Alloys based on a platinum group metal
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/14—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of noble metals or alloys based thereon
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

A magnetic alloy of platinum and iron, which may also contain 1 - 10% by weight of one or more of Co, Ni, H, Au, Ag, Cu, Ir, Os, Pd, Rh, the total content of Au, Ag or Cu lying within the range 1 - 8% and that of Ir, Os, Pd, Rh, lying within the range 1 - 7% is subjected to a treatment such as cold working to transform it into a disordered state, and is then aged within the range 400 DEG 0-500 DEG C. Prior to cold working the alloy may be quenched from a temperature above that of the order-disorder transformation, while in a further modification the cast alloy may be reduced to powder, which is then compacted, e.g. under a pressure of 10 tons/sq. cm., before ageing. Preferably iron and platinum are present in the alloy in equiatomic proportions.
GB26272/65A 1964-07-10 1965-06-22 Process for treating platinum-iron permanent magnet alloys Expired GB1114504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3939764 1964-07-10

Publications (1)

Publication Number Publication Date
GB1114504A true GB1114504A (en) 1968-05-22

Family

ID=12551847

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26272/65A Expired GB1114504A (en) 1964-07-10 1965-06-22 Process for treating platinum-iron permanent magnet alloys

Country Status (2)

Country Link
US (1) US3444012A (en)
GB (1) GB1114504A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860458A (en) * 1965-02-26 1975-01-14 Ishifuku Metal Ind Method of making a magnetic body
US3511639A (en) * 1967-09-05 1970-05-12 Bell Telephone Labor Inc Magnetic alloy material
DE2144560C2 (en) * 1970-09-11 1983-11-03 Akai Electric Co. Ltd., Tokyo Method for manufacturing iron-manganese sintered magnets
JPS5849007B2 (en) * 1979-10-31 1983-11-01 財団法人 電気磁気材料研究所 Permanent magnet that is easy to process and has large coercive force and maximum energy product, and its manufacturing method
JPS57178305A (en) * 1981-04-27 1982-11-02 Res Inst Electric Magnetic Alloys Extra-high coercive force permanent magnet with maximum energy product and manufacture therefor
JP2513679B2 (en) * 1987-04-30 1996-07-03 財団法人 電気磁気材料研究所 Ultra-high coercive force permanent magnet with large maximum energy product and method for manufacturing the same
US5255507A (en) * 1992-05-04 1993-10-26 Ahlstrom Pyropower Corporation Combined cycle power plant incorporating atmospheric circulating fluidized bed boiler and gasifier
US6869567B2 (en) 2002-05-15 2005-03-22 Steven Kretchmer Magnetic platinum alloys
US20040164840A1 (en) * 2003-02-21 2004-08-26 Brown University Research Foundation Extraordinary hall effect sensors and arrays
DE102019213587A1 (en) * 2019-09-06 2021-03-11 Heimerle + Meule Gmbh Platinum jewelry alloy
KR102418318B1 (en) 2020-10-05 2022-07-08 주식회사 로봇앤모어 Electric Mask for Pre-blowing based on Predication of Breathing Cycle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1669649A (en) * 1926-04-10 1928-05-15 Western Electric Co Magnetic material
US2192744A (en) * 1939-05-24 1940-03-05 Gen Electric Sintered permanent magnet
US2289570A (en) * 1940-12-24 1942-07-14 Gen Motors Corp Method of making powdered material and the usage thereof
US2617723A (en) * 1949-05-04 1952-11-11 Gen Electric Sintered high energy permanent magnets
US2622050A (en) * 1951-03-22 1952-12-16 Gen Electric Process for heat-treating cobalt-platinum magnets
US3206337A (en) * 1961-11-08 1965-09-14 Hamilton Watch Co Cobalt-platinum alloy and magnets made therefrom

Also Published As

Publication number Publication date
US3444012A (en) 1969-05-13

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