GB1428902A - Processing for high permeability silicon steel - Google Patents

Processing for high permeability silicon steel

Info

Publication number
GB1428902A
GB1428902A GB1980474A GB1980474A GB1428902A GB 1428902 A GB1428902 A GB 1428902A GB 1980474 A GB1980474 A GB 1980474A GB 1980474 A GB1980474 A GB 1980474A GB 1428902 A GB1428902 A GB 1428902A
Authority
GB
United Kingdom
Prior art keywords
silicon steel
annealed
processing
high permeability
permeability silicon
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
GB1980474A
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.)
Sunbeam Oster Co Inc
Original Assignee
Allegheny Ludlum Industries 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 Allegheny Ludlum Industries Inc filed Critical Allegheny Ludlum Industries Inc
Publication of GB1428902A publication Critical patent/GB1428902A/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
    • C21D8/1261—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 following hot rolling
    • 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
    • C21D8/1266—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 between cold rolling steps

Landscapes

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

Abstract

1428902 Heat-treating silicon steel ALLEGHENY LUDLUM INDUSTRIES Inc 6 May 1974 [7 May 1973] 19804/74 Heading C7A Steel containing in percentage by wt. is hot worked, annealed at 1400-1700‹F for 15 seconds to 2 hours, cooled at a rate equivalent to that in still air, cold-rolled with at least 80% reduction without intermediate annealing, decarburization annealed and finally annealed to produce a cube-on-edge structure providing a permeability of at least 1850 (G/Oe). The initial anneal may be carried out in nitrogen, hydrogen, argon or air.
GB1980474A 1973-05-07 1974-05-06 Processing for high permeability silicon steel Expired GB1428902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00357973A US3855019A (en) 1973-05-07 1973-05-07 Processing for high permeability silicon steel comprising copper

Publications (1)

Publication Number Publication Date
GB1428902A true GB1428902A (en) 1976-03-24

Family

ID=23407791

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1980474A Expired GB1428902A (en) 1973-05-07 1974-05-06 Processing for high permeability silicon steel

Country Status (8)

Country Link
US (1) US3855019A (en)
JP (1) JPS5813605B2 (en)
BE (1) BE814023A (en)
CA (1) CA1010347A (en)
DE (1) DE2422073B2 (en)
ES (1) ES426047A1 (en)
GB (1) GB1428902A (en)
IT (1) IT1011366B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925115A (en) * 1974-11-18 1975-12-09 Allegheny Ludlum Ind Inc Process employing cooling in a static atmosphere for high permeability silicon steel comprising copper
US3929522A (en) * 1974-11-18 1975-12-30 Allegheny Ludlum Ind Inc Process involving cooling in a static atmosphere for high permeability silicon steel comprising copper
US4078952A (en) * 1976-06-17 1978-03-14 Allegheny Ludlum Industries, Inc. Controlling the manganese to sulfur ratio during the processing for high permeability silicon steel
US4054470A (en) * 1976-06-17 1977-10-18 Allegheny Ludlum Industries, Inc. Boron and copper bearing silicon steel and processing therefore
US4168189A (en) * 1977-05-20 1979-09-18 Armco Inc. Process of producing an electrically insulative film
US4319936A (en) * 1980-12-08 1982-03-16 Armco Inc. Process for production of oriented silicon steel
JPS57145963A (en) * 1981-03-04 1982-09-09 Hitachi Metals Ltd Material for magnetic head and its manufacture
US4411714A (en) * 1981-08-24 1983-10-25 Allegheny Ludlum Steel Corporation Method for improving the magnetic properties of grain oriented silicon steel
JPS58100627A (en) * 1981-12-11 1983-06-15 Nippon Steel Corp Manufacture of directional electrical sheet
DE4311151C1 (en) * 1993-04-05 1994-07-28 Thyssen Stahl Ag Grain-orientated electro-steel sheets with good properties
US7204894B1 (en) 2004-03-18 2007-04-17 Nucor Corporation Annealing of hot rolled steel coils with clam shell furnace
CN105956274B (en) * 2016-05-04 2019-06-07 武汉钢铁有限公司 Pass through the method for texture index assessment non-orientation silicon steel magnetic property

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2209686A (en) * 1938-07-25 1940-07-30 Electro Metallurg Co Sheared electrical steel sheet
GB873149A (en) * 1956-11-08 1961-07-19 Yawata Iron & Steel Co Method of producing oriented silicon steel
BE563546A (en) * 1956-12-31
GB933873A (en) * 1959-07-09 1963-08-14 United States Steel Corp Method of producing grain oriented electrical steel
US3345219A (en) * 1960-05-04 1967-10-03 Vacuumschmelze Ag Method for producing magnetic sheets of silicon-iron alloys
US3287184A (en) * 1963-10-22 1966-11-22 Bethlehem Steel Corp Method of producing low carbon electrical sheet steel
FR2007129A1 (en) * 1968-04-27 1970-01-02 Yawata Iron & Steel Co
US3575739A (en) * 1968-11-01 1971-04-20 Gen Electric Secondary recrystallization of silicon iron with nitrogen
US3671337A (en) * 1969-02-21 1972-06-20 Nippon Steel Corp Process for producing grain oriented electromagnetic steel sheets having excellent magnetic characteristics
BE790798A (en) * 1971-11-04 1973-02-15 Armco Steel Corp Manufacturing process of cube-on-edge orientation silicon iron from cast slabs
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

Also Published As

Publication number Publication date
JPS5015726A (en) 1975-02-19
CA1010347A (en) 1977-05-17
DE2422073B2 (en) 1975-12-11
DE2422073A1 (en) 1974-11-28
BE814023A (en) 1974-10-22
US3855019A (en) 1974-12-17
JPS5813605B2 (en) 1983-03-15
IT1011366B (en) 1977-01-20
ES426047A1 (en) 1976-07-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee