GB974705A - Process for producing oriented silicon steel - Google Patents

Process for producing oriented silicon steel

Info

Publication number
GB974705A
GB974705A GB19100/62A GB1910062A GB974705A GB 974705 A GB974705 A GB 974705A GB 19100/62 A GB19100/62 A GB 19100/62A GB 1910062 A GB1910062 A GB 1910062A GB 974705 A GB974705 A GB 974705A
Authority
GB
United Kingdom
Prior art keywords
annealing
sheet
carried out
silicon steel
oriented silicon
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
GB19100/62A
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 GB974705A publication Critical patent/GB974705A/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
    • C21D8/1277—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
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • 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
    • C21D8/1272—Final recrystallisation annealing

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)
  • ing And Chemical Polishing (AREA)

Abstract

(100)[001] orientated silicon iron (1-8% of silicon) is made by etching the surface of the cold reduced sheet to remove a significant amount of material but not above 1% by weight thereof and then annealing the etched sheet in a single uninterrupted step at 1100-1425 DEG C. in a non-carburizing atmosphere free from oxygen water vapour and oxidizing substances which is capable of reducing silica on the surface of the sheet at the annealing temperature, e.g. dry hydrogen with or without nickel vapour, or high vacuum. The etching step is carried out as described in Specification 882,810. The annealing may be carried out on a coil or a stack the sheets being separated by a layer of an inert inorganic refractory material, e.g. zirconia, alumina or magnesium oxide. Specification 945,581 also is referred to.
GB19100/62A 1961-06-07 1962-05-17 Process for producing oriented silicon steel Expired GB974705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US115548A US3078198A (en) 1961-06-07 1961-06-07 Process for producing oriented silicon steel

Publications (1)

Publication Number Publication Date
GB974705A true GB974705A (en) 1964-11-11

Family

ID=22362088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19100/62A Expired GB974705A (en) 1961-06-07 1962-05-17 Process for producing oriented silicon steel

Country Status (3)

Country Link
US (1) US3078198A (en)
DE (1) DE1248079B (en)
GB (1) GB974705A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1212124B (en) * 1959-12-24 1966-03-10 Vacuumschmelze Ag Process for the production of sheet metal from iron-silicon alloys
BE629681A (en) * 1962-03-19
US3240638A (en) * 1964-10-21 1966-03-15 Westinghouse Electric Corp Use of silicon steel alloy having a critical sulfur range to insure cube-onface orientation
US3640780A (en) * 1970-06-25 1972-02-08 United States Steel Corp Method of producing electrical sheet steel with cube texture
US6937018B2 (en) * 2003-10-31 2005-08-30 General Electric Company Systems and methods for fabricating pole pieces for magnetic resonance imaging systems
KR102105529B1 (en) * 2018-09-27 2020-04-28 주식회사 포스코 Double oriented electrical steel sheet method for manufacturing the same
DE102020134301A1 (en) 2020-12-18 2022-06-23 Vacuumschmelze Gmbh & Co. Kg Soft magnetic alloy and method of making a soft magnetic alloy
US11827961B2 (en) 2020-12-18 2023-11-28 Vacuumschmelze Gmbh & Co. Kg FeCoV alloy and method for producing a strip from an FeCoV alloy

Also Published As

Publication number Publication date
US3078198A (en) 1963-02-19
DE1248079B (en) 1967-08-24

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