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GB1080578A - Magnetic sheets with cube-on-face grain texture and processes for producing the same - Google Patents

Magnetic sheets with cube-on-face grain texture and processes for producing the same

Info

Publication number
GB1080578A
GB1080578A GB21000/65A GB2100065A GB1080578A GB 1080578 A GB1080578 A GB 1080578A GB 21000/65 A GB21000/65 A GB 21000/65A GB 2100065 A GB2100065 A GB 2100065A GB 1080578 A GB1080578 A GB 1080578A
Authority
GB
United Kingdom
Prior art keywords
max
grain texture
alpha phase
gamma
cube
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
GB21000/65A
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 GB1080578A publication Critical patent/GB1080578A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • 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
    • 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
    • C21D8/1255—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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels

Landscapes

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

Abstract

Plate, strip or sheet body of iron or a ferrous alloy having a gamma-to-alpha phase transformation is heated to a temperature of the gamma phase e.g. between 900 and 1300 DEG C., and then cooled to the alpha phase preferably at a rate less than 175 DEG C. per hour e.g. to 800-880 DEG C., the body containing at least at its surface 0.00003 to 0.0005% by weight dissolved sulphur during the gamma-to-alpha phase transformation to produce a random cube-on-face or (100) [h k l] grain texture. The heating and cooling may be carried out in vacuum, or a reducing or an inert atmosphere such as containing H2, N2, A and/or He. The atmosphere preferably contains 2 to 30 p pm by volume H2S, and may comprise dry H2 having a dew point -35 DEG C. or less, or wet H2 having a dew point 10 DEG C. or higher for assisting decarburizing e.g. at 800 to 900 DEG C. Initially the body may be hot then cold rolled. The resulting (100) [h k l] grain texture body may be cold reduced 60 to 80% in thickness and annealed in the alpha phase e.g. at 800 to 900 DEG C. for 10 to 100 hours to develop the (100) [001] grain texture. The body may be magnetic annealed by cooling to 300 DEG C. in a magnetic field. Stack or coil annealing may be employed. The ferrous alloy may contain besides S, at least one of Al max. 2%, Cr max. 12%, Ge max. 10%, Mn max. 2%, Mo max. 5%, W max. 6%, Ni max. 10%, Si max. 2%, Ti max. 1%, Ta max. 1%, V max. 1%, Co max. 50%, Zr max. 1%, with or without 0.001 to 0.08% C, the remainder at least 50% Fe.
GB21000/65A 1964-06-04 1965-05-18 Magnetic sheets with cube-on-face grain texture and processes for producing the same Expired GB1080578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US372693A US3351501A (en) 1964-06-04 1964-06-04 Process for producing magnetic sheets with cube-on-face grain texture

Publications (1)

Publication Number Publication Date
GB1080578A true GB1080578A (en) 1967-08-23

Family

ID=23469239

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21000/65A Expired GB1080578A (en) 1964-06-04 1965-05-18 Magnetic sheets with cube-on-face grain texture and processes for producing the same

Country Status (6)

Country Link
US (1) US3351501A (en)
BE (1) BE664974A (en)
DE (1) DE1483514A1 (en)
FR (1) FR1443470A (en)
GB (1) GB1080578A (en)
SE (1) SE318900B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118884B1 (en) * 1970-12-29 1976-06-14
BE795761A (en) * 1972-02-22 1973-08-22 Westinghouse Electric Corp DOUBLE ORIENTATION COBALT AND IRON ALLOYS
JPS5410922B2 (en) * 1972-12-19 1979-05-10
GB1512632A (en) * 1974-03-08 1978-06-01 British Steel Corp Grain-oriented steel
JPS5120446B1 (en) * 1975-03-17 1976-06-25
JPS5120445B1 (en) * 1975-03-17 1976-06-25
US4265683A (en) * 1979-02-07 1981-05-05 Westinghouse Electric Corp. Development of grain-oriented iron sheet for electrical apparatus
US4306922A (en) * 1979-09-07 1981-12-22 British Steel Corporation Electro magnetic steels
DE4302813C2 (en) * 1993-02-02 1996-01-18 Dresden Ev Inst Festkoerper Process for the production of a cube surface texture ((100) [Okl]) in electrical sheets
CN106555034B (en) * 2015-09-28 2019-02-05 宝山钢铁股份有限公司 A kind of low-coercivity cold rolling electromagnetic pure iron strip continuous annealing method
WO2021159150A1 (en) * 2020-02-07 2021-08-12 Temper Ip, Llc Method for densification of powdered material using thermal cycling and magnetic cycling
CN113897559B (en) * 2021-10-08 2022-09-20 北京北冶功能材料有限公司 High-saturation-magnetic-induction low-loss soft magnetic alloy and production method thereof

Family Cites Families (3)

* 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
US3287184A (en) * 1963-10-22 1966-11-22 Bethlehem Steel Corp Method of producing low carbon electrical sheet steel
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

Also Published As

Publication number Publication date
US3351501A (en) 1967-11-07
BE664974A (en) 1965-10-01
DE1483514A1 (en) 1969-02-20
SE318900B (en) 1969-12-22
FR1443470A (en) 1966-06-24

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