GB950082A - The manufacture of silicon-iron having cubic texture - Google Patents

The manufacture of silicon-iron having cubic texture

Info

Publication number
GB950082A
GB950082A GB18345/60A GB1834560A GB950082A GB 950082 A GB950082 A GB 950082A GB 18345/60 A GB18345/60 A GB 18345/60A GB 1834560 A GB1834560 A GB 1834560A GB 950082 A GB950082 A GB 950082A
Authority
GB
United Kingdom
Prior art keywords
hydrogen
silicon
atmosphere
iron
annealed
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
GB18345/60A
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.)
Armco Inc
Original Assignee
Armco 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 Armco Inc filed Critical Armco Inc
Publication of GB950082A publication Critical patent/GB950082A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B3/00Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02Rolling special iron alloys, e.g. stainless steel
    • 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
    • C21D8/1216Modifying 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
    • C21D8/1233Cold rolling
    • 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76Adjusting the composition of the atmosphere
    • 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
    • C21D8/1244Modifying 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
    • C21D8/1255Modifying 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
    • 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
    • C21D8/1244Modifying 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
    • C21D8/1261Modifying 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
    • 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
    • C21D8/1244Modifying 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
    • C21D8/1266Modifying 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 between cold rolling steps
    • 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
    • C21D8/1244Modifying 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
    • C21D8/1272Final recrystallisation annealing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Soft Magnetic Materials (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

In a process for the development of cubic texture in iron-silicon alloys containing 2.5-4% of silicon, the material is hot-rolled to an intermediate gauge, annealed, e.g. at 1400-1800 DEG F., cold rolled with a reduction of 55-80%, annealed in hydrogen in the temperature range 2200-2350 DEG F. whereby the carbon content is reduced, and then given a cold reduction of 75-90% to final size. The sheet is then given a primary recrystallization anneal either box or continuously in the range 1300-1700 DEG F. followed by secondary recrystallization at 1900-2300 DEG F.; these two treatments may be combined, primary recrystallization occurring during heating to the secondary recrystallization temperature. The final heat-treatment is preferably carried out in an atmosphere of hydrogen or a non-reactive gas such as argon or helium, the atmosphere containing a small amount of a highly-polar compound such as hydrogen sulphide, oxides of sulphur or oxides of carbon or mixtures of these. As exemplified an annealing separator of magnesia containing a small amount of sulphur is used in a hydrogen atmosphere.
GB18345/60A 1959-06-11 1960-05-24 The manufacture of silicon-iron having cubic texture Expired GB950082A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81958959A 1959-06-11 1959-06-11
US145540A US3130094A (en) 1959-06-11 1961-10-13 Manufacture of silicon-iron having cubic texture

Publications (1)

Publication Number Publication Date
GB950082A true GB950082A (en) 1964-02-19

Family

ID=26843076

Family Applications (2)

Application Number Title Priority Date Filing Date
GB18345/60A Expired GB950082A (en) 1959-06-11 1960-05-24 The manufacture of silicon-iron having cubic texture
GB35311/62A Expired GB974686A (en) 1959-06-11 1962-09-17 The manufacture of silicon-iron having cube-on-face texture

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB35311/62A Expired GB974686A (en) 1959-06-11 1962-09-17 The manufacture of silicon-iron having cube-on-face texture

Country Status (6)

Country Link
US (1) US3130094A (en)
BE (1) BE622386A (en)
CH (2) CH432566A (en)
DE (2) DE1277287B (en)
FR (1) FR1272943A (en)
GB (2) GB950082A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333992A (en) * 1964-06-29 1967-08-01 Armco Steel Corp Production of oriented silicon-iron using grain growth inhibitor during primary recrystallization heat treatment
US3333993A (en) * 1965-04-02 1967-08-01 Armco Steel Corp Production of thin, oriented siliconiron wherein grain growth inhibitor is added to primary recrystallization heat treatment atmosphere as function of mn content and final thickness
FR2007129A1 (en) * 1968-04-27 1970-01-02 Yawata Iron & Steel Co
US3640780A (en) * 1970-06-25 1972-02-08 United States Steel Corp Method of producing electrical sheet steel with cube texture
US3892605A (en) * 1972-02-22 1975-07-01 Westinghouse Electric Corp Method of producing primary recrystallized textured iron alloy member having an open gamma loop
BE795763A (en) * 1972-02-22 1973-08-22 Westinghouse Electric Corp FERROUS ALLOYS AND METHODS FOR MAKING SUCH ALLOYS
US3789647A (en) * 1972-10-20 1974-02-05 United States Steel Corp Method of surface-conditioning heat-treating-furnace hearth rolls having sleeves of rebonded fused silica thereon by processing silicon steel strip
JPS51151215A (en) * 1975-06-21 1976-12-25 Kawasaki Steel Corp Process for manufacturing non-oriented silicon steel plate with low co re loss and high magnetic flux density
CA1202549A (en) * 1982-07-19 1986-04-01 Robert F. Miller Method for producing cube-on-edge oriented silicon steel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2307391A (en) * 1938-10-14 1943-01-05 American Rolling Mill Co Art of producing magnetic material
US2303343A (en) * 1941-01-14 1942-12-01 Carnegie Illinois Steel Corp Silicon steel electrical strip
US2473156A (en) * 1944-11-16 1949-06-14 Armco Steel Corp Process for developing high magnetic permeability and low core loss in very thin silicon steel
US2599340A (en) * 1948-10-21 1952-06-03 Armco Steel Corp Process of increasing the permeability of oriented silicon steels
DE1009214B (en) * 1954-03-27 1957-05-29 Ver Deutsche Metallwerke Ag Process for creating a distinctive cube texture in magnetizable strips and sheets made of iron alloys containing silicon and / or aluminum
US2992952A (en) * 1955-12-01 1961-07-18 Vacuumschmelze Ag Method of manufacturing magnetic sheets

Also Published As

Publication number Publication date
DE1277287B (en) 1968-09-12
CH432566A (en) 1967-03-31
GB974686A (en) 1964-11-11
FR1272943A (en) 1961-10-06
CH485857A (en) 1970-02-15
US3130094A (en) 1964-04-21
BE622386A (en)
DE1293180B (en) 1969-04-24

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