GB1422766A - Processing for high permeability silicon steel - Google Patents

Processing for high permeability silicon steel

Info

Publication number
GB1422766A
GB1422766A GB1980574A GB1980574A GB1422766A GB 1422766 A GB1422766 A GB 1422766A GB 1980574 A GB1980574 A GB 1980574A GB 1980574 A GB1980574 A GB 1980574A GB 1422766 A GB1422766 A GB 1422766A
Authority
GB
United Kingdom
Prior art keywords
silicon steel
annealed
processing
high permeability
rolled
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
GB1980574A
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 GB1422766A publication Critical patent/GB1422766A/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
    • C21D8/1266—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
    • 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

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)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

1422766 Heat-treating silicon steel ALLEGHENY LUDLAM INDUSTRIES Inc 6 May 1974 [7 May 1973] 19805/74 Heading C7A The steel contains in percentage by wt. and is hot-rolled, optionally annealed at # 1700‹F, cold-rolled in one or more stages with any intermediate anneals being at # 1700‹F, annealed at 1400-1700‹F for 15 seconds to 2 hours preferably with cooling rate equivalent to that in still air before the final cold rolling which involves a reduction of at least 80%, decarburized and finally annealed to produce a cube -on-edge texture yielding a permeability of at least 1850 G/oe at 10 oe.
GB1980574A 1973-05-07 1974-05-06 Processing for high permeability silicon steel Expired GB1422766A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00358238A US3855021A (en) 1973-05-07 1973-05-07 Processing for high permeability silicon steel comprising copper

Publications (1)

Publication Number Publication Date
GB1422766A true GB1422766A (en) 1976-01-28

Family

ID=23408851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1980574A Expired GB1422766A (en) 1973-05-07 1974-05-06 Processing for high permeability silicon steel

Country Status (7)

Country Link
US (1) US3855021A (en)
JP (1) JPS6025495B2 (en)
CA (1) CA1010761A (en)
DE (1) DE2422074B2 (en)
ES (1) ES426018A1 (en)
GB (1) GB1422766A (en)
IT (1) IT1011368B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE430794B (en) * 1974-09-16 1983-12-12 Allegheny Ludlum Steel COLD ROLLED SILICONE IRON MATERIALS AND WELL PREPARED
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
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
US4054471A (en) * 1976-06-17 1977-10-18 Allegheny Ludlum Industries, Inc. Processing for cube-on-edge oriented silicon steel
US4113529A (en) * 1977-09-29 1978-09-12 General Electric Company Method of producing silicon-iron sheet material with copper as a partial substitute for sulfur, and product
US4319936A (en) * 1980-12-08 1982-03-16 Armco Inc. Process for production of oriented silicon steel
US4390378A (en) * 1981-07-02 1983-06-28 Inland Steel Company Method for producing medium silicon steel electrical lamination strip
US4545827A (en) * 1981-07-02 1985-10-08 Inland Steel Company Low silicon steel electrical lamination strip
US4529453A (en) * 1981-07-02 1985-07-16 Inland Steel Company Medium silicon steel electrical lamination strip
US4394192A (en) * 1981-07-02 1983-07-19 Inland Steel Company Method for producing low silicon steel electrical lamination strip
JPS58157917A (en) * 1982-03-15 1983-09-20 Kawasaki Steel Corp Manufacture of unidirectional silicon steel plate with superior magnetic characteristic
JPH0440558Y2 (en) * 1985-12-18 1992-09-22

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB873149A (en) * 1956-11-08 1961-07-19 Yawata Iron & Steel Co Method of producing oriented silicon 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
US3632456A (en) * 1968-04-27 1972-01-04 Nippon Steel Corp Method for producing an electromagnetic steel sheet of a thin sheet thickness having a high-magnetic induction
US3671337A (en) * 1969-02-21 1972-06-20 Nippon Steel Corp Process for producing grain oriented electromagnetic steel sheets having excellent magnetic characteristics

Also Published As

Publication number Publication date
US3855021A (en) 1974-12-17
IT1011368B (en) 1977-01-20
DE2422074B2 (en) 1976-10-14
CA1010761A (en) 1977-05-24
JPS5015728A (en) 1975-02-19
ES426018A1 (en) 1976-07-01
JPS6025495B2 (en) 1985-06-18
DE2422074A1 (en) 1974-11-28

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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