EP0099618A2 - Procédé de fabrication d'acier au silicium à grains orientés cube-sur-arête - Google Patents

Procédé de fabrication d'acier au silicium à grains orientés cube-sur-arête Download PDF

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Publication number
EP0099618A2
EP0099618A2 EP83302010A EP83302010A EP0099618A2 EP 0099618 A2 EP0099618 A2 EP 0099618A2 EP 83302010 A EP83302010 A EP 83302010A EP 83302010 A EP83302010 A EP 83302010A EP 0099618 A2 EP0099618 A2 EP 0099618A2
Authority
EP
European Patent Office
Prior art keywords
silicon steel
steel
cube
serrating
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.)
Ceased
Application number
EP83302010A
Other languages
German (de)
English (en)
Other versions
EP0099618A3 (fr
Inventor
Robert Frederick Miller
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.)
Allegheny Ludlum Steel Corp
Original Assignee
Allegheny Ludlum Steel 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 Allegheny Ludlum Steel Corp filed Critical Allegheny Ludlum Steel Corp
Publication of EP0099618A2 publication Critical patent/EP0099618A2/fr
Publication of EP0099618A3 publication Critical patent/EP0099618A3/fr
Ceased legal-status Critical Current

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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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1294—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a localised treatment

Definitions

  • This invention relates to a method of producing cube-on-edge oriented silicon steel.
  • Cube-on-edge oriented silicon steel in the form of sheets is known for use in various electrical applications including transformer cores.
  • the alloy With cube-on-edge silicon steel the alloy is characterized by secondary recrystallization in the (110) (001) position which is termed the cube-on-edge position.
  • This material in sheet form has the direction of easy magnetization in the direction of rolling. In applications for this material, and specifically when used in the manufacture of transformer cores, the material is required to have reduced watt loss, because the consumption of electrical energy decreases as iron loss decreases.
  • cube-on-edge silicon steel to which the invention is directed is conventionally processed by hot rolling and cold rolling with intermediate annealing. Thereafter, the steel is subject to texture annealing to produce the desired secondary recrystallization in the (110) (001) position. It has been found, in accordance with the present invention, that either prior to this final texture annealing or after final texture annealing the watt loss of the steel may be reduced by serrating the steel, with the serrating preferably being in a direction essentially perpendicular to the (001) crystal direction.
  • the depths of the serrations are typically 0.025mm (001"), but may be within the range of .05 to .005mm (.002" to .0002"), the widths of the serrations are typically .lmm (.004") but may be within the range of .25 to .0025mm (.010" to .0001”), and the intervals or distance from serration to serration may be within the range of 5 to 12.7mm (.2 to .5").
  • the practice of the invention is applicable to cube-on-edge silicon steel generally it is particularly suited to the following compositions in percent by weight:

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)
  • Soft Magnetic Materials (AREA)
EP83302010A 1982-07-19 1983-04-11 Procédé de fabrication d'acier au silicium à grains orientés cube-sur-arête Ceased EP0099618A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39993782A 1982-07-19 1982-07-19
US399937 1982-07-19

Publications (2)

Publication Number Publication Date
EP0099618A2 true EP0099618A2 (fr) 1984-02-01
EP0099618A3 EP0099618A3 (fr) 1984-06-13

Family

ID=23581547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83302010A Ceased EP0099618A3 (fr) 1982-07-19 1983-04-11 Procédé de fabrication d'acier au silicium à grains orientés cube-sur-arête

Country Status (6)

Country Link
EP (1) EP0099618A3 (fr)
JP (1) JPS5928525A (fr)
KR (1) KR860000532B1 (fr)
BR (1) BR8301546A (fr)
CA (1) CA1197759A (fr)
PL (1) PL242746A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575588A1 (fr) * 1984-11-10 1986-07-04 Nippon Steel Corp Tole en acier electrique a grains orientes ayant des proprietes magnetiques stables resistant au recuit de detente, ainsi que procede et appareil pour produire cette tole
EP0185437A3 (en) * 1984-12-19 1988-01-07 Allegheny Ludlum Steel Corporation Method and apparatus for reducing core losses of grain-oriented silicon steel
EP0228157A3 (fr) * 1985-12-16 1988-04-06 Allegheny Ludlum Corporation Procédé et dispositif pour strier des bandes d'acier au silicium à grains orientés
EP0367467A1 (fr) * 1988-10-26 1990-05-09 Kawasaki Steel Corporation Tôles d'acier au silicium à grains orientés et à faible perte dans le fer et Leur procédé de fabrication
EP0287357A3 (fr) * 1987-04-17 1990-07-25 Kawasaki Steel Corporation Procédé pour diminuer les pertes dans le fer de tôles en acier au silicium à grains orientés

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6286175A (ja) * 1985-10-14 1987-04-20 Nippon Steel Corp 方向性電磁鋼板の処理方法
JPS61117218A (ja) * 1984-11-10 1986-06-04 Nippon Steel Corp 低鉄損一方向性電磁鋼板の製造方法
JPS61117284A (ja) * 1984-11-10 1986-06-04 Nippon Steel Corp 低鉄損一方向性電磁鋼板の製造方法
JPH0711035B2 (ja) * 1985-01-26 1995-02-08 新日本製鐵株式会社 方向性電磁鋼板の歪取り焼鈍方法
JPS62179105A (ja) * 1986-02-03 1987-08-06 Nippon Steel Corp 低鉄損一方向性電磁鋼板の製造方法
JPH057397U (ja) * 1991-02-05 1993-02-02 株式会社西原環境衛生研究所 接触曝気汚水処理装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE626673C (de) * 1932-02-13 1936-07-01 Hoesch Koeln Neuessen Akt Ges Verfahren und Vorrichtung zur Herstellung von grobkoernig rekristallisierten Baendern oder Blechen
DE1804208B1 (de) * 1968-10-17 1970-11-12 Mannesmann Ag Verfahren zur Herabsetzung der Wattverluste von kornorientierten Elektroblechen,insbesondere von Wuerfeltexturblechen
US3833431A (en) * 1971-12-09 1974-09-03 Westinghouse Electric Corp Process for continuously annealed silicon steel using tension-producing glass
JPS5423647B2 (fr) * 1974-04-25 1979-08-15
JPS585968B2 (ja) * 1977-05-04 1983-02-02 新日本製鐵株式会社 超低鉄損一方向性電磁鋼板の製造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575588A1 (fr) * 1984-11-10 1986-07-04 Nippon Steel Corp Tole en acier electrique a grains orientes ayant des proprietes magnetiques stables resistant au recuit de detente, ainsi que procede et appareil pour produire cette tole
EP0185437A3 (en) * 1984-12-19 1988-01-07 Allegheny Ludlum Steel Corporation Method and apparatus for reducing core losses of grain-oriented silicon steel
EP0228157A3 (fr) * 1985-12-16 1988-04-06 Allegheny Ludlum Corporation Procédé et dispositif pour strier des bandes d'acier au silicium à grains orientés
EP0287357A3 (fr) * 1987-04-17 1990-07-25 Kawasaki Steel Corporation Procédé pour diminuer les pertes dans le fer de tôles en acier au silicium à grains orientés
EP0367467A1 (fr) * 1988-10-26 1990-05-09 Kawasaki Steel Corporation Tôles d'acier au silicium à grains orientés et à faible perte dans le fer et Leur procédé de fabrication
US5146063A (en) * 1988-10-26 1992-09-08 Kawasaki Steel Corporation Low iron loss grain oriented silicon steel sheets and method of producing the same

Also Published As

Publication number Publication date
PL242746A1 (en) 1984-03-12
CA1197759A (fr) 1985-12-10
KR860000532B1 (ko) 1986-05-08
KR840004177A (ko) 1984-10-10
EP0099618A3 (fr) 1984-06-13
BR8301546A (pt) 1984-04-17
JPS5928525A (ja) 1984-02-15

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Inventor name: MILLER, ROBERT FREDERICK