GB870870A - Improvements in or relating to silicon iron alloys - Google Patents

Improvements in or relating to silicon iron alloys

Info

Publication number
GB870870A
GB870870A GB34820/58A GB3482058A GB870870A GB 870870 A GB870870 A GB 870870A GB 34820/58 A GB34820/58 A GB 34820/58A GB 3482058 A GB3482058 A GB 3482058A GB 870870 A GB870870 A GB 870870A
Authority
GB
United Kingdom
Prior art keywords
weight
cold rolled
approximately
thickness
ductile
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
GB34820/58A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB870870A publication Critical patent/GB870870A/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
    • C21D8/1227—Warm rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • 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
    • C21D8/1216—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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S72/00—Metal deforming
    • Y10S72/70—Deforming specified alloys or uncommon metal or bimetallic work
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/30—Foil or other thin sheet-metal making or treating
    • Y10T29/301—Method

Landscapes

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

Abstract

870,870. Making sheet and foil. WESTING- HOUSE ELECTRIC CORPORATION. Oct. 30, 1958 [Nov. 6, 1957], No. 34820/58. Classes 83 (2) and 83 (4). Working at specified temperatures; altering physical properties.-A method of producing thin gauge silicon-iron sheet having good magnetic properties and very low magnetostriction and which is ductile and capable of being cold rolled without annealing at room temperature, comprises hot rolling a plate of an alloy consisting essentially of from 4.5% by weight to 7.5% by weight of silicon and aluminium, the aluminium not exceeding approximately 0.5% by weight, and the balance of the alloy being iron except for incidental impurities, to a thickness of approximately 110 mils., then warm rolling the resulting material at a temperature between the range 275‹ C. and 425‹ C. to a thickness of approximately 25 mils. to produce an elongated microstructure therein. The hot rolling is effected within a temperature range of 750‹ to 850‹ C. The strip obtained from the warm rolling step can be cold rolled to the desired thickness, e.g. 1 and 2 mil., without exhibiting edge cracks. The cold rolled strip is also very ductile and the magnetostriction is nearly zero.
GB34820/58A 1957-11-06 1958-10-30 Improvements in or relating to silicon iron alloys Expired GB870870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US694709A US3099176A (en) 1957-11-06 1957-11-06 Rolling silicon-iron

Publications (1)

Publication Number Publication Date
GB870870A true GB870870A (en) 1961-06-21

Family

ID=24789955

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34820/58A Expired GB870870A (en) 1957-11-06 1958-10-30 Improvements in or relating to silicon iron alloys

Country Status (5)

Country Link
US (1) US3099176A (en)
BE (1) BE572663A (en)
DE (1) DE1173116B (en)
FR (1) FR1207243A (en)
GB (1) GB870870A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486707A1 (en) * 1990-06-20 1992-05-27 Nippon Steel Corporation Ultrahigh-silicon directional electrical steel sheet and production thereof
US5262039A (en) * 1991-10-16 1993-11-16 Hoogovens Groep Bv Silicon-containing iron sheet for electrical applications and methods for its manufacture

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843422A (en) * 1972-03-30 1974-10-22 R Henke Rolling method for producing silicon steel strip
JPS63220902A (en) * 1987-03-10 1988-09-14 Nkk Corp Warm rolling method for high silicon steel plate
JPH07115041B2 (en) * 1987-03-11 1995-12-13 日本鋼管株式会社 Method for manufacturing non-oriented high Si steel sheet
JPH0747775B2 (en) * 1990-06-12 1995-05-24 新日本製鐵株式会社 Method for producing non-oriented electrical steel sheet with excellent magnetic properties after stress relief annealing
DE10220282C1 (en) * 2002-05-07 2003-11-27 Thyssenkrupp Electrical Steel Ebg Gmbh Process for producing cold-rolled steel strip with Si contents of at least 3.2% by weight for electromagnetic applications
CN107201479B (en) * 2017-06-19 2018-10-30 东北大学 A kind of warm-rolling technique improving Fe-6.5%Si steel plate plasticity

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE512049A (en) *
US1081370A (en) * 1911-12-13 1913-12-16 Gen Electric Process of manufacturing silicon-steel products.
US1744242A (en) * 1922-09-02 1930-01-21 Westinghouse Electric & Mfg Co Method of treating alloys
CH117815A (en) * 1925-04-03 1926-12-01 Pomp Anton Ing Dr Process for refining high-silicon alloy iron or steel in strip, sheet, wire or bar form.
US1898061A (en) * 1929-09-27 1933-02-21 Allegheny Steel Co Treatment of electrical sheet steels
US1912129A (en) * 1930-12-05 1933-05-30 Allegheny Steel Co Treatment of silicon steel
DE634533C (en) * 1931-04-07 1936-08-29 Aeg Process for rolling sheet metal, in particular dynamo and transformer sheets, from silicon steel blocks
US1932307A (en) * 1932-09-13 1933-10-24 Edward M Freeland Silicon steel and method of making the same
DE665181C (en) * 1934-06-13 1938-09-19 Hoesch Akt Ges Process to improve the loss coefficient and the magnetic induction of silicon-alloyed dynamo and transformer steel sheets
US2084336A (en) * 1934-06-30 1937-06-22 Allegheny Steel Co Magnetic material and method of manufacture
US2113537A (en) * 1935-10-29 1938-04-05 Heraeus Vacuumschmeise A G Method of rolling and treating silicon steel
US2235532A (en) * 1938-09-29 1941-03-18 Gen Electric Method for shearing normally brittle sheet metal
US2307391A (en) * 1938-10-14 1943-01-05 American Rolling Mill Co Art of producing magnetic material
US2270762A (en) * 1939-01-31 1942-01-20 Gen Electric Cold rolled silicon steel strip
US2473156A (en) * 1944-11-16 1949-06-14 Armco Steel Corp Process for developing high magnetic permeability and low core loss in very thin silicon steel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486707A1 (en) * 1990-06-20 1992-05-27 Nippon Steel Corporation Ultrahigh-silicon directional electrical steel sheet and production thereof
EP0486707A4 (en) * 1990-06-20 1992-12-09 Nippon Steel Corporation Ultrahigh-silicon directional electrical steel sheet and production thereof
US5308411A (en) * 1990-06-20 1994-05-03 Nippon Steel Corporation Ultrahigh silicon, grain-oriented electrical steel sheet and process for producing the same
US5262039A (en) * 1991-10-16 1993-11-16 Hoogovens Groep Bv Silicon-containing iron sheet for electrical applications and methods for its manufacture

Also Published As

Publication number Publication date
BE572663A (en)
FR1207243A (en) 1960-02-15
DE1173116B (en) 1964-07-02
US3099176A (en) 1963-07-30

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