GB1415415A - Silicon steel and method for its production - Google Patents

Silicon steel and method for its production

Info

Publication number
GB1415415A
GB1415415A GB4532273A GB4532273A GB1415415A GB 1415415 A GB1415415 A GB 1415415A GB 4532273 A GB4532273 A GB 4532273A GB 4532273 A GB4532273 A GB 4532273A GB 1415415 A GB1415415 A GB 1415415A
Authority
GB
United Kingdom
Prior art keywords
steel
minutes
optionally
rolling
silicon steel
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
GB4532273A
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26967808&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB1415415(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Allegheny Ludlum Industries Inc filed Critical Allegheny Ludlum Industries Inc
Publication of GB1415415A publication Critical patent/GB1415415A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C21D8/1261—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)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

1415415 Grain oriented silicon steel ALLEGHENY LUDLUM INDUSTRIES Inc 27 Sept 1973 [28 Sept 1972 7 May 1973] 45322/73 Heading C7A A silicon steel of composition:- C - 0.02 to 0.07% Mn equivalent (%Mn + 0.1 to 0.25%Cu) - 0.05 to 0.24 such that the ratio of manganese equivalent to sulphur is from 2 to 4.75. The steel may be prepared by casting into rigid form hot rolling subjecting the hot rolled steel to at least 1400 F for 10 seconds to 30 minutes, annealing and thereafter processing to produce a cube on edge texture in the grain oriented steel. Exemplified treatments include hot rolling the steel, optionally soaking for 1 hour at 2500‹F, optionally holding for 2 minutes at 1650 F or for 30 minutes at 1850‹F, surface conditioning the steel, optionally rolling to an intermediate gauge, normalizing for five minutes at 1875 to 1905 F or 1960 to 2010‹F in a H 2 -N 2 protective atmosphere, cold rolling and normalizing for 1 minute at 1475‹C in a decarburizing atmosphere, optionally coating with MgO slurry for desulphurization and finally annealing at 2150‹F.
GB4532273A 1972-09-28 1973-09-27 Silicon steel and method for its production Expired GB1415415A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29319472A 1972-09-28 1972-09-28
US00357969A US3855018A (en) 1972-09-28 1973-05-07 Method for producing grain oriented silicon steel comprising copper

Publications (1)

Publication Number Publication Date
GB1415415A true GB1415415A (en) 1975-11-26

Family

ID=26967808

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4532273A Expired GB1415415A (en) 1972-09-28 1973-09-27 Silicon steel and method for its production

Country Status (16)

Country Link
US (1) US3855018A (en)
JP (1) JPS5745818B2 (en)
AR (1) AR199921A1 (en)
AT (1) AT338311B (en)
AU (1) AU472237B2 (en)
CA (1) CA1003731A (en)
DE (1) DE2348249C2 (en)
ES (1) ES419147A1 (en)
FR (1) FR2201342B1 (en)
GB (1) GB1415415A (en)
HU (1) HU167081B (en)
IT (1) IT996214B (en)
NL (1) NL7312694A (en)
PL (1) PL91102B1 (en)
RO (1) RO68034A (en)
SE (1) SE410198B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107794439A (en) * 2016-08-30 2018-03-13 宝山钢铁股份有限公司 Extra-low iron loss non-oriented electromagnetic steel sheet and its manufacture method

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5432412B2 (en) * 1973-10-31 1979-10-15
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
US4171994A (en) * 1975-02-13 1979-10-23 Allegheny Ludlum Industries, Inc. Use of nitrogen-bearing base coatings in the manufacture of high permeability silicon steel
US4010050A (en) * 1975-09-08 1977-03-01 Allegheny Ludlum Industries, Inc. Processing for aluminum nitride inhibited oriented silicon steel
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
SE8107844L (en) * 1981-03-19 1982-09-20 Allegheny Ludlum Steel SET TO MAKE CORNORIENTED SILICONE
JPS6048886B2 (en) * 1981-08-05 1985-10-30 新日本製鐵株式会社 High magnetic flux density unidirectional electrical steel sheet with excellent iron loss and method for manufacturing the same
JPS5948935B2 (en) * 1981-08-05 1984-11-29 新日本製鐵株式会社 Manufacturing method of low iron loss unidirectional electrical steel sheet
KR930004849B1 (en) * 1991-07-12 1993-06-09 포항종합제철 주식회사 Electrcal steel sheet having a good magnetic property and its making process
KR940003339B1 (en) * 1991-12-26 1994-04-20 포항종합제철 주식회사 Magnetic materials
DE4311151C1 (en) * 1993-04-05 1994-07-28 Thyssen Stahl Ag Grain-orientated electro-steel sheets with good properties
EP0709470B1 (en) * 1993-11-09 2001-10-04 Pohang Iron & Steel Co., Ltd. Production method of directional electromagnetic steel sheet of low temperature slab heating system
FR2731713B1 (en) * 1995-03-14 1997-04-11 Ugine Sa PROCESS FOR THE MANUFACTURE OF A SHEET OF ELECTRIC STEEL WITH ORIENTED GRAINS FOR THE PRODUCTION OF MAGNETIC TRANSFORMER CIRCUITS IN PARTICULAR
DE19745445C1 (en) * 1997-10-15 1999-07-08 Thyssenkrupp Stahl Ag Process for the production of grain-oriented electrical sheet with low magnetic loss and high polarization
CN109554525B (en) * 2018-12-03 2020-12-15 武汉钢铁有限公司 Manufacturing method of mirror-surface oriented silicon steel

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2173312A (en) * 1937-08-14 1939-09-19 Heraeus Vacuumschmelze Ag Silicon-iron alloy
GB873149A (en) * 1956-11-08 1961-07-19 Yawata Iron & Steel Co Method of producing oriented silicon steel
BE563546A (en) * 1956-12-31
DE1117624B (en) * 1958-08-13 1961-11-23 Allegheny Ludlum Steel Process for the production of strips with a high grain orientation from an iron-silicon alloy
US3144363A (en) * 1961-12-14 1964-08-11 Westinghouse Electric Corp Process for producing oriented silicon steel and the product thereof
US3266955A (en) * 1962-12-28 1966-08-16 Yawata Iron & Steel Co Process for producing silicon steel sheet having (100) plane in the rolling plane
US3287183A (en) * 1964-06-22 1966-11-22 Yawata Iron & Steel Co Process for producing single-oriented silicon steel sheets having a high magnetic induction
US3438820A (en) * 1965-04-02 1969-04-15 Dominion Foundries & Steel Silicon steel process
US3636579A (en) * 1968-04-24 1972-01-25 Nippon Steel Corp Process for heat-treating electromagnetic steel sheets having a high magnetic induction
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
US3700506A (en) * 1968-12-10 1972-10-24 Nippon Steel Corp Method for reducing an iron loss of an oriented magnetic steel sheet 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
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
AT362973B (en) * 1979-08-06 1981-06-25 List Hans ELEMENT FOR SEALING THE SEPARATOR BETWEEN TWO PARTS ENCLOSING A GASKET

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107794439A (en) * 2016-08-30 2018-03-13 宝山钢铁股份有限公司 Extra-low iron loss non-oriented electromagnetic steel sheet and its manufacture method

Also Published As

Publication number Publication date
JPS5745818B2 (en) 1982-09-30
SE410198B (en) 1979-10-01
ATA823373A (en) 1976-12-15
NL7312694A (en) 1974-04-01
PL91102B1 (en) 1977-02-28
DE2348249C2 (en) 1983-03-03
RO68034A (en) 1982-02-26
AT338311B (en) 1977-08-25
CA1003731A (en) 1977-01-18
AU472237B2 (en) 1976-05-20
FR2201342B1 (en) 1977-08-12
US3855018A (en) 1974-12-17
HU167081B (en) 1975-08-28
AU6006473A (en) 1975-03-06
AR199921A1 (en) 1974-10-08
IT996214B (en) 1975-12-10
US3855018B1 (en) 1994-02-18
DE2348249A1 (en) 1974-04-04
FR2201342A1 (en) 1974-04-26
ES419147A1 (en) 1976-12-16
JPS4972118A (en) 1974-07-12

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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