GB1146936A - Improvements in or relating to sheets of silicon-iron alloys - Google Patents

Improvements in or relating to sheets of silicon-iron alloys

Info

Publication number
GB1146936A
GB1146936A GB41758/67A GB4175867A GB1146936A GB 1146936 A GB1146936 A GB 1146936A GB 41758/67 A GB41758/67 A GB 41758/67A GB 4175867 A GB4175867 A GB 4175867A GB 1146936 A GB1146936 A GB 1146936A
Authority
GB
United Kingdom
Prior art keywords
silicon
relating
sheets
iron alloys
sept
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
GB41758/67A
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.)
Vacuumschmelze GmbH and Co KG
Original Assignee
Vacuumschmelze GmbH and Co KG
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 Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG
Publication of GB1146936A publication Critical patent/GB1146936A/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
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1233—Cold rolling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Abstract

1,146,936. Grain oriented silicon-iron. VACUUMSCHMELZE G.m.b.H. Sept.13, 1967 [Sept.14, 1966], No.41758/67. Heading C7A. A sheet of Si-Fe alloy having 2-4% Si and cubic or (100) [001] texture is cold rolled with 0À5-2% reduction and then annealed at 750-1100‹ C. in a protective atmosphere, e.g. of dry H 2 , to reduce losses produced by eddy currents and hysteresis when used at audio frequencies above 50 c/s for magnetic purposes.
GB41758/67A 1966-09-14 1967-09-13 Improvements in or relating to sheets of silicon-iron alloys Expired GB1146936A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV0031935 1966-09-14

Publications (1)

Publication Number Publication Date
GB1146936A true GB1146936A (en) 1969-03-26

Family

ID=7586843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41758/67A Expired GB1146936A (en) 1966-09-14 1967-09-13 Improvements in or relating to sheets of silicon-iron alloys

Country Status (6)

Country Link
US (1) US3513039A (en)
AT (1) AT271538B (en)
BE (1) BE702126A (en)
DE (1) DE1558012A1 (en)
FR (1) FR1550182A (en)
GB (1) GB1146936A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770517A (en) * 1972-03-06 1973-11-06 Allegheny Ludlum Ind Inc Method of producing substantially non-oriented silicon steel strip by three-stage cold rolling
DE4302813C2 (en) * 1993-02-02 1996-01-18 Dresden Ev Inst Festkoerper Process for the production of a cube surface texture ((100) [Okl]) in electrical sheets
EP0684320B1 (en) * 1994-04-26 2000-06-21 LTV STEEL COMPANY, Inc. Process of making electrical steels
US6217673B1 (en) 1994-04-26 2001-04-17 Ltv Steel Company, Inc. Process of making electrical steels
US6068708A (en) * 1998-03-10 2000-05-30 Ltv Steel Company, Inc. Process of making electrical steels having good cleanliness and magnetic properties

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA464450A (en) * 1950-04-18 Armco Steel Corporation Production of silicon steel of uniformly low core loss
US1867818A (en) * 1929-04-02 1932-07-19 Edward M Freeland Method of treating silicon steel sheets
US2067036A (en) * 1932-11-19 1937-01-05 Wimmer Anton Process of producing metals for electrical purposes
US2535420A (en) * 1947-09-10 1950-12-26 Armco Steel Corp Process of producing silicon steel of high-directional permeability
US2738295A (en) * 1952-08-29 1956-03-13 Allegheny Ludlum Steel Process of producing silicon steel laminations
BE629681A (en) * 1962-03-19
US3240638A (en) * 1964-10-21 1966-03-15 Westinghouse Electric Corp Use of silicon steel alloy having a critical sulfur range to insure cube-onface orientation
US3415696A (en) * 1965-08-16 1968-12-10 Jones & Laughlin Steel Corp Process of producing silicon steel laminations having a very large grain size after final anneal

Also Published As

Publication number Publication date
BE702126A (en) 1968-01-02
DE1558012A1 (en) 1970-02-12
FR1550182A (en) 1968-12-20
US3513039A (en) 1970-05-19
AT271538B (en) 1969-06-10

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