FR720838A - Improved heat treatment process for developing the magnetic properties of magnetic substances - Google Patents

Improved heat treatment process for developing the magnetic properties of magnetic substances

Info

Publication number
FR720838A
FR720838A FR720838DA FR720838A FR 720838 A FR720838 A FR 720838A FR 720838D A FR720838D A FR 720838DA FR 720838 A FR720838 A FR 720838A
Authority
FR
France
Prior art keywords
magnetic
developing
heat treatment
treatment process
improved heat
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
Other languages
French (fr)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR720838A publication Critical patent/FR720838A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1272—Final recrystallisation annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
FR720838D 1930-07-31 1931-07-30 Improved heat treatment process for developing the magnetic properties of magnetic substances Expired FR720838A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US471988A US1866925A (en) 1930-07-31 1930-07-31 Magnetic material

Publications (1)

Publication Number Publication Date
FR720838A true FR720838A (en) 1932-02-24

Family

ID=23873778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR720838D Expired FR720838A (en) 1930-07-31 1931-07-30 Improved heat treatment process for developing the magnetic properties of magnetic substances

Country Status (2)

Country Link
US (1) US1866925A (en)
FR (1) FR720838A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921878A (en) * 1958-02-12 1960-01-19 Westinghouse Electric Corp Heat treating nickel-iron alloys
US3130091A (en) * 1958-04-28 1964-04-21 Armco Steel Corp Non-oriented silicon-iron sheet stock and process of making it
BE790266A (en) * 1971-10-21 1973-02-15 Cspeli Femmu PROCESS FOR MANUFACTURING COLD ROLLED ELECTROMAGNETIC STEEL STRIPS AND SHEETS
US3982972A (en) * 1975-03-21 1976-09-28 Hitachi Metals, Ltd. Semihard magnetic alloy and a process for the production thereof
US3989556A (en) * 1975-03-21 1976-11-02 Hitachi Metals, Ltd. Semihard magnetic alloy and a process for the production thereof

Also Published As

Publication number Publication date
US1866925A (en) 1932-07-12

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