ES444965A1 - Processing for high permeability silicon steel - Google Patents

Processing for high permeability silicon steel

Info

Publication number
ES444965A1
ES444965A1 ES444965A ES444965A ES444965A1 ES 444965 A1 ES444965 A1 ES 444965A1 ES 444965 A ES444965 A ES 444965A ES 444965 A ES444965 A ES 444965A ES 444965 A1 ES444965 A1 ES 444965A1
Authority
ES
Spain
Prior art keywords
steel
selenium
boron
weight
group
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
ES444965A
Other languages
Spanish (es)
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 ES444965A1 publication Critical patent/ES444965A1/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1277Modifying 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
    • C21D8/1283Application of a separating or insulating coating
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00Coating starting from inorganic powder

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Soft Magnetic Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

Improved process to produce electromagnetic silicon steel that has a cubic edge orientation and a permeability of at least 1850 (G/Oe) at 10 cerstediums, a process that will prompt the steps consisting of: preparing a silicon steel broth; strain said steel; hot rolling said steel to obtain a hot rolled strip; cold rolling said steel to a reduction of at least 80%; decarburize said steel; and annealing said steel to the final texture; characterized in that it comprises the steps consisting of coating the surface of said steel with a coating consisting essentially of: 100 parts, by weight, of at least one substance from the group consisting of boron, boron compounds, sulfur, sulfur compounds, selenium, compounds of selenium, and oxides and hydroxides of magnesium, calcium, aluminum, titanium and manganese; and 0.5 to 50 parts, by weight, of at least one nitrogen-bearing compound from the group consisting of (NH4) 2SO4, FE (NO3) 3, Al (NO3) 3, Mg (NO3) 2 and Zn (NO3) 2; and the annealing of said steel to the final texture; said steel broth consisting essentially of, by weight, up to 0.07% carbon, 2.6 to 4.0% silicon, 0.03 to 0.24% manganese, 0.01 to 0 0.09% material from the group consisting of sulfur and selenium, 0.015 to 0.04% aluminum, up to 0.02% nitrogen, up to 0.5% copper, up to 0.0035% boron, the rest being iron. (Machine-translation by Google Translate, not legally binding)
ES444965A 1975-02-13 1976-02-06 Processing for high permeability silicon steel Expired ES444965A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54956575A 1975-02-13 1975-02-13

Publications (1)

Publication Number Publication Date
ES444965A1 true ES444965A1 (en) 1977-04-16

Family

ID=24193515

Family Applications (1)

Application Number Title Priority Date Filing Date
ES444965A Expired ES444965A1 (en) 1975-02-13 1976-02-06 Processing for high permeability silicon steel

Country Status (13)

Country Link
JP (1) JPS51106622A (en)
AR (1) AR208355A1 (en)
AT (1) AT363971B (en)
BE (1) BE838299A (en)
BR (1) BR7600913A (en)
CA (1) CA1055368A (en)
DE (1) DE2604708A1 (en)
ES (1) ES444965A1 (en)
FR (1) FR2300821A1 (en)
GB (1) GB1514031A (en)
IT (1) IT1053850B (en)
NL (1) NL7600971A (en)
SE (1) SE412416B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7703456L (en) * 1976-04-15 1977-10-16 Gen Electric THILE PLATE OF IRON IRON WITH ADDITIONAL ADDITION AND PROCEDURE FOR MANUFACTURE THEREOF
US4160681A (en) * 1977-12-27 1979-07-10 Allegheny Ludlum Industries, Inc. Silicon steel and processing therefore
JPS6196080A (en) * 1986-04-03 1986-05-14 Nippon Steel Corp Separating agent for annealing for grain-oriented electrical steel sheet
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
CN102443736B (en) * 2010-09-30 2013-09-04 宝山钢铁股份有限公司 Method for producing high magnetic flux-density oriented silicon steel product
KR102105529B1 (en) * 2018-09-27 2020-04-28 주식회사 포스코 Double oriented electrical steel sheet method for manufacturing the same

Also Published As

Publication number Publication date
JPS51106622A (en) 1976-09-21
IT1053850B (en) 1981-10-10
GB1514031A (en) 1978-06-14
FR2300821A1 (en) 1976-09-10
NL7600971A (en) 1976-08-17
BE838299A (en) 1976-08-05
ATA89476A (en) 1981-02-15
DE2604708A1 (en) 1976-08-19
SE412416B (en) 1980-03-03
BR7600913A (en) 1976-09-14
AU1066876A (en) 1977-08-04
CA1055368A (en) 1979-05-29
AR208355A1 (en) 1976-12-20
FR2300821B1 (en) 1980-02-22
AT363971B (en) 1981-09-10
SE7601462L (en) 1976-08-14

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