GB1404388A - Processes for the production of grain-oriented steel sheet - Google Patents

Processes for the production of grain-oriented steel sheet

Info

Publication number
GB1404388A
GB1404388A GB3271373A GB3271373A GB1404388A GB 1404388 A GB1404388 A GB 1404388A GB 3271373 A GB3271373 A GB 3271373A GB 3271373 A GB3271373 A GB 3271373A GB 1404388 A GB1404388 A GB 1404388A
Authority
GB
United Kingdom
Prior art keywords
separator
july
final
subjected
grain
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
GB3271373A
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of GB1404388A publication Critical patent/GB1404388A/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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
    • 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
    • C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
    • C21D8/1283—Application of a separating or insulating coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14775—Fe-Si based alloys in the form of sheets
    • H01F1/14783—Fe-Si based alloys in the form of sheets with insulating coating
    • 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

Landscapes

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

Abstract

1404388 Making sheets NIPPON STEEL CORP 10 July 1973 [10 July 1972] 32713/73 Heading B3A [Also in Division C7] Silicon steel containing acid-soluble Al is hot rolled, continuously annealed at 950- 1200‹ C. and cooled rapidly while aluminium nitride precipitates. It is then subjected to one or two cold rolling stages, the one stage or final stage giving a reduction of 81-95% and subjected to final annealing while coated with a separator incorporating Sb in elemental or compound form. Preferably the antimony content of the separator is 0À1-15% by wt., added as oxide, silicate or hydroxide the separator being based on MgO n or Al 2 O 3 . A preferred steel composition includes C 0À025- 0À085%, Si 2-4, and Al 0À01-0À065% and the final anneal may be at 1200‹ C. for 20 hours, possibly preceded by decarburization.
GB3271373A 1972-07-10 1973-07-10 Processes for the production of grain-oriented steel sheet Expired GB1404388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6889172A JPS5037129B2 (en) 1972-07-10 1972-07-10

Publications (1)

Publication Number Publication Date
GB1404388A true GB1404388A (en) 1975-08-28

Family

ID=13386715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3271373A Expired GB1404388A (en) 1972-07-10 1973-07-10 Processes for the production of grain-oriented steel sheet

Country Status (8)

Country Link
JP (1) JPS5037129B2 (en)
BE (1) BE802120A (en)
BR (1) BR7305144D0 (en)
DE (1) DE2334739C3 (en)
FR (1) FR2192180B1 (en)
GB (1) GB1404388A (en)
IT (1) IT991092B (en)
SE (1) SE384228B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152537A (en) * 1984-01-09 1985-08-07 Nippon Steel Corp Progress for producing grain-oriented electrical steel sheet having both improved magnetic properties and properties of glass film

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725019Y2 (en) * 1974-01-30 1982-05-31
IT1127263B (en) * 1978-11-28 1986-05-21 Nippon Steel Corp SEPARATION SUBSTANCE TO BE USED IN THE ANNEALING PHASE OF ORIENTED GRAINS OF SILICON STEEL
JPS60177132A (en) * 1984-02-24 1985-09-11 Nippon Steel Corp Production of grain oriented electrical steel sheet having excellent magnetic characteristic and high magnetic flux density
US4582547A (en) * 1984-05-07 1986-04-15 Allegheny Ludlum Steel Corporation Method for improving the annealing separator coating on silicon steel and coating therefor
DE69030781T3 (en) † 1989-03-30 2001-05-23 Nippon Steel Corp., Tokio/Tokyo Process for the production of grain-oriented electrical steel sheets by means of rapid quenching and solidification
WO1996015291A1 (en) † 1994-11-16 1996-05-23 Nippon Steel Corporation Process for producing directional electrical sheet excellent in glass coating and magnetic properties

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152537A (en) * 1984-01-09 1985-08-07 Nippon Steel Corp Progress for producing grain-oriented electrical steel sheet having both improved magnetic properties and properties of glass film

Also Published As

Publication number Publication date
DE2334739C3 (en) 1975-07-24
SE384228B (en) 1976-04-26
DE2334739A1 (en) 1974-01-31
BR7305144D0 (en) 1974-08-15
FR2192180B1 (en) 1975-08-22
JPS4927423A (en) 1974-03-11
IT991092B (en) 1975-07-30
DE2334739B2 (en) 1974-12-12
JPS5037129B2 (en) 1975-12-01
BE802120A (en) 1973-11-05
FR2192180A1 (en) 1974-02-08

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930709