US3855018B1 - - Google Patents

Download PDF

Info

Publication number
US3855018B1
US3855018B1 US90/002300A US35796973A US3855018B1 US 3855018 B1 US3855018 B1 US 3855018B1 US 90/002300 A US90/002300 A US 90/002300A US 35796973 A US35796973 A US 35796973A US 3855018 B1 US3855018 B1 US 3855018B1
Authority
US
United States
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 - Lifetime
Application number
US90/002300A
Inventor
A. Salsgiver James
Gerald L. Houze, Jr.
L. Ames Stuart
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 Corp
Pittsburgh National Bank
Original Assignee
Allegheny Ludlum Corp
Pittsburgh National Bank
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26967808&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US3855018(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Allegheny Ludlum Corp, Pittsburgh National Bank filed Critical Allegheny Ludlum Corp
Priority to US00357969A priority Critical patent/US3855018A/en
Priority to AU60064/73A priority patent/AU472237B2/en
Priority to NL7312694A priority patent/NL7312694A/xx
Priority to FR7333489A priority patent/FR2201342B1/fr
Priority to DE2348249A priority patent/DE2348249C2/en
Priority to AT823373A priority patent/AT338311B/en
Priority to IT52796/73A priority patent/IT996214B/en
Priority to GB4532273A priority patent/GB1415415A/en
Priority to CA182,379A priority patent/CA1003731A/en
Priority to RO7376191A priority patent/RO68034A/en
Priority to ES419147A priority patent/ES419147A1/en
Priority to HUAE393A priority patent/HU167081B/hu
Priority to AR250288A priority patent/AR199921A1/en
Priority to JP48108590A priority patent/JPS5745818B2/ja
Priority to SE7313271A priority patent/SE410198B/en
Priority to PL1973165492A priority patent/PL91102B1/pl
Publication of US3855018A publication Critical patent/US3855018A/en
Application granted granted Critical
Assigned to ALLEGHENY LUDLUM CORPORATION reassignment ALLEGHENY LUDLUM CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). 8-4-86 Assignors: ALLEGHENY LUDLUM STEEL CORPORATION
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALLEGHENY LUDLUM CORPORATION
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK ASSIGNMENT OF ASSIGNORS INTEREST. RECORDED ON REEL 4855 FRAME 0400 Assignors: PITTSBURGH NATIONAL BANK
Anticipated expiration legal-status Critical
Publication of US3855018B1 publication Critical patent/US3855018B1/en
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • C21D8/1261—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 following hot rolling
US00357969A 1972-09-28 1973-05-07 Method for producing grain oriented silicon steel comprising copper Expired - Lifetime US3855018A (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
US00357969A US3855018A (en) 1972-09-28 1973-05-07 Method for producing grain oriented silicon steel comprising copper
AU60064/73A AU472237B2 (en) 1972-09-28 1973-09-06 Grain oriented silicon steel and method for its production
NL7312694A NL7312694A (en) 1972-09-28 1973-09-14
FR7333489A FR2201342B1 (en) 1972-09-28 1973-09-18
DE2348249A DE2348249C2 (en) 1972-09-28 1973-09-25 Method of manufacturing silicon steel sheet with Goss texture
AT823373A AT338311B (en) 1972-09-28 1973-09-25 PROCESS FOR PRODUCING GRAIN ORIENTED SILICONE STEELS
IT52796/73A IT996214B (en) 1972-09-28 1973-09-27 IMPROVEMENT IN THE PROCESS FOR THE PRODUCTION OF ORIENTED SILICON STEEL
GB4532273A GB1415415A (en) 1972-09-28 1973-09-27 Silicon steel and method for its production
ES419147A ES419147A1 (en) 1972-09-28 1973-09-28 Method for producing grain oriented silicon steel comprising copper
PL1973165492A PL91102B1 (en) 1972-09-28 1973-09-28
CA182,379A CA1003731A (en) 1972-09-28 1973-09-28 Grain oriented silicon steel and method for its production
HUAE393A HU167081B (en) 1972-09-28 1973-09-28
AR250288A AR199921A1 (en) 1972-09-28 1973-09-28 IMPROVED SILICON STEEL AND A PROCEDURE FOR PRODUCING ORIENTED SILICON STEEL THROUGH SUCH IMPROVED SILICON STEEL
JP48108590A JPS5745818B2 (en) 1972-09-28 1973-09-28
SE7313271A SE410198B (en) 1972-09-28 1973-09-28 PROCEDURE FOR PRODUCTION OF ORIENTATED SILK STEEL WITH CUB-PA-EDGE TEXTURE ORIENTATION
RO7376191A RO68034A (en) 1972-09-28 1973-09-28 SILICON STEEL FOR ELECTROTECHNIC AND METHOD FOR PRODUCING THE SAME

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29319472A 1972-09-28 1972-09-28
US00357969A US3855018A (en) 1972-09-28 1973-05-07 Method for producing grain oriented silicon steel comprising copper

Publications (2)

Publication Number Publication Date
US3855018A US3855018A (en) 1974-12-17
US3855018B1 true US3855018B1 (en) 1994-02-18

Family

ID=26967808

Family Applications (1)

Application Number Title Priority Date Filing Date
US00357969A Expired - Lifetime US3855018A (en) 1972-09-28 1973-05-07 Method for producing grain oriented silicon steel comprising copper

Country Status (16)

Country Link
US (1) US3855018A (en)
JP (1) JPS5745818B2 (en)
AR (1) AR199921A1 (en)
AT (1) AT338311B (en)
AU (1) AU472237B2 (en)
CA (1) CA1003731A (en)
DE (1) DE2348249C2 (en)
ES (1) ES419147A1 (en)
FR (1) FR2201342B1 (en)
GB (1) GB1415415A (en)
HU (1) HU167081B (en)
IT (1) IT996214B (en)
NL (1) NL7312694A (en)
PL (1) PL91102B1 (en)
RO (1) RO68034A (en)
SE (1) SE410198B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925115A (en) * 1974-11-18 1975-12-09 Allegheny Ludlum Ind Inc Process employing cooling in a static atmosphere for high permeability silicon steel comprising copper
US3929522A (en) * 1974-11-18 1975-12-30 Allegheny Ludlum Ind Inc Process involving cooling in a static atmosphere for high permeability silicon steel comprising copper
US3940299A (en) * 1973-10-31 1976-02-24 Kawasaki Steel Corporation Method for producing single-oriented electrical steel sheets having a high magnetic induction
US4010050A (en) * 1975-09-08 1977-03-01 Allegheny Ludlum Industries, Inc. Processing for aluminum nitride inhibited oriented silicon steel
US4078952A (en) * 1976-06-17 1978-03-14 Allegheny Ludlum Industries, Inc. Controlling the manganese to sulfur ratio during the processing for high permeability silicon steel
US4171994A (en) * 1975-02-13 1979-10-23 Allegheny Ludlum Industries, Inc. Use of nitrogen-bearing base coatings in the manufacture of high permeability silicon steel
US4493739A (en) * 1981-08-05 1985-01-15 Nippon Steel Corporation Process for producing a grain-oriented electromagnetic steel sheet or strip having a low watt loss and a grain-oriented electromagnetic steel strip having uniform magnetic properties
US4753692A (en) * 1981-08-05 1988-06-28 Nippon Steel Corporation Grain-oriented electromagnetic steel sheet and process for producing the same
US5401332A (en) * 1991-07-12 1995-03-28 Pohang Iron & Steel Co., Ltd. Grain oriented electrical steel sheet having superior magnetic properties, and manufacturing process thereof
AU673720B2 (en) * 1993-04-05 1996-11-21 Thyssen Stahl Aktiengesellschaft Process for the production of grain oriented magnetic steel sheets having improved remagnetization losses

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8107844L (en) * 1981-03-19 1982-09-20 Allegheny Ludlum Steel SET TO MAKE CORNORIENTED SILICONE
KR940003339B1 (en) * 1991-12-26 1994-04-20 포항종합제철 주식회사 Magnetic materials
EP0709470B1 (en) * 1993-11-09 2001-10-04 Pohang Iron & Steel Co., Ltd. Production method of directional electromagnetic steel sheet of low temperature slab heating system
FR2731713B1 (en) * 1995-03-14 1997-04-11 Ugine Sa PROCESS FOR THE MANUFACTURE OF A SHEET OF ELECTRIC STEEL WITH ORIENTED GRAINS FOR THE PRODUCTION OF MAGNETIC TRANSFORMER CIRCUITS IN PARTICULAR
DE19745445C1 (en) * 1997-10-15 1999-07-08 Thyssenkrupp Stahl Ag Process for the production of grain-oriented electrical sheet with low magnetic loss and high polarization
CN107794439B (en) * 2016-08-30 2019-04-23 宝山钢铁股份有限公司 Extra-low iron loss non-oriented electromagnetic steel sheet and its manufacturing method
CN109554525B (en) * 2018-12-03 2020-12-15 武汉钢铁有限公司 Manufacturing method of mirror-surface oriented silicon steel

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2173312A (en) * 1937-08-14 1939-09-19 Heraeus Vacuumschmelze Ag Silicon-iron alloy
GB873149A (en) * 1956-11-08 1961-07-19 Yawata Iron & Steel Co Method of producing oriented silicon steel
BE563546A (en) * 1956-12-31
DE1117624B (en) * 1958-08-13 1961-11-23 Allegheny Ludlum Steel Process for the production of strips with a high grain orientation from an iron-silicon alloy
US3144363A (en) * 1961-12-14 1964-08-11 Westinghouse Electric Corp Process for producing oriented silicon steel and the product thereof
US3266955A (en) * 1962-12-28 1966-08-16 Yawata Iron & Steel Co Process for producing silicon steel sheet having (100) plane in the rolling plane
US3287183A (en) * 1964-06-22 1966-11-22 Yawata Iron & Steel Co Process for producing single-oriented silicon steel sheets having a high magnetic induction
US3438820A (en) * 1965-04-02 1969-04-15 Dominion Foundries & Steel Silicon steel process
US3636579A (en) * 1968-04-24 1972-01-25 Nippon Steel Corp Process for heat-treating electromagnetic steel sheets having a high magnetic induction
CA920035A (en) * 1968-04-27 1973-01-30 Taguchi Satoru Method for producing an electro-magnetic steel sheet of a thin sheet thickness having a high magnetic induction
US3575739A (en) * 1968-11-01 1971-04-20 Gen Electric Secondary recrystallization of silicon iron with nitrogen
US3700506A (en) * 1968-12-10 1972-10-24 Nippon Steel Corp Method for reducing an iron loss of an oriented magnetic steel sheet having a high magnetic induction
US3671337A (en) * 1969-02-21 1972-06-20 Nippon Steel Corp Process for producing grain oriented electromagnetic steel sheets having excellent magnetic characteristics
BE790798A (en) * 1971-11-04 1973-02-15 Armco Steel Corp Manufacturing process of cube-on-edge orientation silicon iron from cast slabs
US3770517A (en) * 1972-03-06 1973-11-06 Allegheny Ludlum Ind Inc Method of producing substantially non-oriented silicon steel strip by three-stage cold rolling
AT362973B (en) * 1979-08-06 1981-06-25 List Hans ELEMENT FOR SEALING THE SEPARATOR BETWEEN TWO PARTS ENCLOSING A GASKET

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940299A (en) * 1973-10-31 1976-02-24 Kawasaki Steel Corporation Method for producing single-oriented electrical steel sheets having a high magnetic induction
US3925115A (en) * 1974-11-18 1975-12-09 Allegheny Ludlum Ind Inc Process employing cooling in a static atmosphere for high permeability silicon steel comprising copper
US3929522A (en) * 1974-11-18 1975-12-30 Allegheny Ludlum Ind Inc Process involving cooling in a static atmosphere for high permeability silicon steel comprising copper
US4171994A (en) * 1975-02-13 1979-10-23 Allegheny Ludlum Industries, Inc. Use of nitrogen-bearing base coatings in the manufacture of high permeability silicon steel
US4010050A (en) * 1975-09-08 1977-03-01 Allegheny Ludlum Industries, Inc. Processing for aluminum nitride inhibited oriented silicon steel
US4078952A (en) * 1976-06-17 1978-03-14 Allegheny Ludlum Industries, Inc. Controlling the manganese to sulfur ratio during the processing for high permeability silicon steel
US4493739A (en) * 1981-08-05 1985-01-15 Nippon Steel Corporation Process for producing a grain-oriented electromagnetic steel sheet or strip having a low watt loss and a grain-oriented electromagnetic steel strip having uniform magnetic properties
US4753692A (en) * 1981-08-05 1988-06-28 Nippon Steel Corporation Grain-oriented electromagnetic steel sheet and process for producing the same
US4863532A (en) * 1981-08-05 1989-09-05 Nippon Steel Corporation Grain-oriented electromagnetic steel sheet
US5401332A (en) * 1991-07-12 1995-03-28 Pohang Iron & Steel Co., Ltd. Grain oriented electrical steel sheet having superior magnetic properties, and manufacturing process thereof
AU673720B2 (en) * 1993-04-05 1996-11-21 Thyssen Stahl Aktiengesellschaft Process for the production of grain oriented magnetic steel sheets having improved remagnetization losses

Also Published As

Publication number Publication date
JPS5745818B2 (en) 1982-09-30
AR199921A1 (en) 1974-10-08
FR2201342A1 (en) 1974-04-26
GB1415415A (en) 1975-11-26
HU167081B (en) 1975-08-28
ES419147A1 (en) 1976-12-16
NL7312694A (en) 1974-04-01
AU472237B2 (en) 1976-05-20
FR2201342B1 (en) 1977-08-12
PL91102B1 (en) 1977-02-28
ATA823373A (en) 1976-12-15
AU6006473A (en) 1975-03-06
SE410198B (en) 1979-10-01
JPS4972118A (en) 1974-07-12
DE2348249A1 (en) 1974-04-04
US3855018A (en) 1974-12-17
RO68034A (en) 1982-02-26
IT996214B (en) 1975-12-10
AT338311B (en) 1977-08-25
CA1003731A (en) 1977-01-18
DE2348249C2 (en) 1983-03-03

Similar Documents

Publication Publication Date Title
JPS4882686A (en)
US3855018B1 (en)
FR2212296B3 (en)
JPS4949872A (en)
JPS519950Y2 (en)
JPS4933717U (en)
JPS4929892A (en)
JPS4897994A (en)
JPS48106398U (en)
JPS48104346U (en)
CH578491A5 (en)
BG18306A1 (en)
CH583234A5 (en)
CH583178A5 (en)
CH580105A5 (en)
CH579689A5 (en)
CH579666B5 (en)
CH579561A5 (en)
AU480611A (en)
CH579525A5 (en)
BE781579R (en)
CH578538A5 (en)
BG18156A1 (en)
CH578416A5 (en)
CH291473A4 (en)

Legal Events

Date Code Title Description
AS Assignment

Owner name: ALLEGHENY LUDLUM CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:ALLEGHENY LUDLUM STEEL CORPORATION;REEL/FRAME:004779/0642

Effective date: 19860805

AS Assignment

Owner name: PITTSBURGH NATIONAL BANK

Free format text: SECURITY INTEREST;ASSIGNOR:ALLEGHENY LUDLUM CORPORATION;REEL/FRAME:004855/0400

Effective date: 19861226

AS Assignment

Owner name: PITTSBURGH NATIONAL BANK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. RECORDED ON REEL 4855 FRAME 0400;ASSIGNOR:PITTSBURGH NATIONAL BANK;REEL/FRAME:005018/0050

Effective date: 19881129

RR Request for reexamination filed

Effective date: 19900427

B1 Reexamination certificate first reexamination