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GB1123275A - Method of producing soft steel with a silicon content of 0.5 to 4.5% for the manufacture of sheets or strips for electromagnetic applications - Google Patents

Method of producing soft steel with a silicon content of 0.5 to 4.5% for the manufacture of sheets or strips for electromagnetic applications

Info

Publication number
GB1123275A
GB1123275A GB18650/66A GB1865066A GB1123275A GB 1123275 A GB1123275 A GB 1123275A GB 18650/66 A GB18650/66 A GB 18650/66A GB 1865066 A GB1865066 A GB 1865066A GB 1123275 A GB1123275 A GB 1123275A
Authority
GB
United Kingdom
Prior art keywords
carbon
strips
sheets
manufacture
silicon content
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
GB18650/66A
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.)
Eisenwerke Gesellschaf Maximilianshuette mbH
Original Assignee
Eisenwerke Gesellschaf Maximilianshuette mbH
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 Eisenwerke Gesellschaf Maximilianshuette mbH filed Critical Eisenwerke Gesellschaf Maximilianshuette mbH
Publication of GB1123275A publication Critical patent/GB1123275A/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
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • 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
    • C21D8/1205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular fabrication or treatment of ingot or slab
    • 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
    • C21D8/1255—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 with diffusion of elements, e.g. decarburising, nitriding
    • 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

Molten steel containing 0.03 to 0.05% of carbon and a content of oxygen which is higher than stoichiometric with regard to the carbon but within the range 0.06 to 0.1%, is subjected to vacuum treatment to reduce the carbon to about 0.01%, after which the oxygen is reduced to below 0.005% by treatment with aluminium silicon is then added to produce a content within the range 0.5 to 4.5%; the addition may take place during a continuation of the vacuum treatment, preferably after deoxidation with aluminium has been completed. In an example steel produced in this way was hot-rolled, cold-rolled, and continuously annealed at 900 DEG C. whereby the steel was completely recrystallized and its carbon content reduced to 0.004%.
GB18650/66A 1965-05-19 1966-04-28 Method of producing soft steel with a silicon content of 0.5 to 4.5% for the manufacture of sheets or strips for electromagnetic applications Expired GB1123275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0029337 1965-05-19

Publications (1)

Publication Number Publication Date
GB1123275A true GB1123275A (en) 1968-08-14

Family

ID=7073863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18650/66A Expired GB1123275A (en) 1965-05-19 1966-04-28 Method of producing soft steel with a silicon content of 0.5 to 4.5% for the manufacture of sheets or strips for electromagnetic applications

Country Status (3)

Country Link
US (1) US3522114A (en)
DE (1) DE1458852A1 (en)
GB (1) GB1123275A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431967B1 (en) * 1971-04-08 1979-10-11
EP0074036A1 (en) * 1981-08-28 1983-03-16 Nippon Steel Corporation Process for producing steel for an electrical steel sheet
EP0665295A1 (en) * 1994-01-26 1995-08-02 LTV Steel Company, Inc. Method of making ultra-low carbon and sulfur steel

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2024525B1 (en) * 1970-05-11 1971-12-30 Mannesmann Ag Process for the production of intermediate products from iron-silicon alloys with 4.5 to 7.5% by weight silicon, which are sufficiently ductile for cold working
BE783693A (en) * 1971-05-20 1972-09-18 Nippon Steel Corp PROCESS FOR THE MANUFACTURING OF STEEL SLABS CONTAINING SILICON FOR ELECTRIC STEEL BALLS AND STRIPS
US3935038A (en) * 1971-10-28 1976-01-27 Nippon Steel Corporation Method for manufacturing non-oriented electrical steel sheet and strip having no ridging
US3833431A (en) * 1971-12-09 1974-09-03 Westinghouse Electric Corp Process for continuously annealed silicon steel using tension-producing glass
JPS4894618A (en) * 1972-03-15 1973-12-05
US3819426A (en) * 1972-07-31 1974-06-25 Nat Steel Corp Process for producing non-silicon bearing electrical steel
AT339940B (en) * 1973-11-05 1977-11-10 Voest Ag PROCESS FOR MANUFACTURING COLD-ROLLED SILICON ALLOY ELECTRIC SHEETS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1277523A (en) * 1916-03-06 1918-09-03 Trygve D Yensen Magnetic iron product and method of making same.
GB338409A (en) * 1929-01-18 1930-11-20 Ass Elect Ind Improved manufacture of iron and iron-nickel and iron-silicon alloys
US2144200A (en) * 1936-06-27 1939-01-17 Heraeus Vacuumschmelze Ag Method of manufacturing siliconiron alloys
US3021237A (en) * 1958-08-05 1962-02-13 Allegheny Ludlum Steel Processing of metal
US3042556A (en) * 1960-02-02 1962-07-03 Gen Electric Process for treating steel
US3253909A (en) * 1964-11-10 1966-05-31 Allegheny Ludlum Steel Processing silicon steel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431967B1 (en) * 1971-04-08 1979-10-11
EP0074036A1 (en) * 1981-08-28 1983-03-16 Nippon Steel Corporation Process for producing steel for an electrical steel sheet
EP0665295A1 (en) * 1994-01-26 1995-08-02 LTV Steel Company, Inc. Method of making ultra-low carbon and sulfur steel
US5472479A (en) * 1994-01-26 1995-12-05 Ltv Steel Company, Inc. Method of making ultra-low carbon and sulfur steel

Also Published As

Publication number Publication date
US3522114A (en) 1970-07-28
DE1458852A1 (en) 1969-04-30

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