FR2228854A1 - Silicon steel with high magnetic permeability - prepd. by casting, hot-rolling, annealing and cooling - Google Patents

Silicon steel with high magnetic permeability - prepd. by casting, hot-rolling, annealing and cooling

Info

Publication number
FR2228854A1
FR2228854A1 FR7413792A FR7413792A FR2228854A1 FR 2228854 A1 FR2228854 A1 FR 2228854A1 FR 7413792 A FR7413792 A FR 7413792A FR 7413792 A FR7413792 A FR 7413792A FR 2228854 A1 FR2228854 A1 FR 2228854A1
Authority
FR
France
Prior art keywords
hot
degrees
magnetic permeability
rolling
prepd
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.)
Granted
Application number
FR7413792A
Other languages
French (fr)
Other versions
FR2228854B1 (en
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.)
Sunbeam Oster Co Inc
Original Assignee
Allegheny Ludlum Industries 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
Priority claimed from US00358238A external-priority patent/US3855021A/en
Priority claimed from US00357973A external-priority patent/US3855019A/en
Application filed by Allegheny Ludlum Industries Inc filed Critical Allegheny Ludlum Industries Inc
Publication of FR2228854A1 publication Critical patent/FR2228854A1/en
Application granted granted Critical
Publication of FR2228854B1 publication Critical patent/FR2228854B1/fr
Granted legal-status Critical Current

Links

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 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
    • 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
    • C21D8/1266—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 between cold rolling steps
    • 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

Abstract

A steel is made possessing a Goss texture and magnetic permeability >=1850 gauss/oersted at a field of 10 oersted. The chemical compsn. is C 0.07% max, Si 2.6-4.0%, Mn 0.03-0.24%, S 0.01-0.07%, Al 0.015-0.04%, N 0.02% max. Cu 0.1-0.5%. The steel is cast, hot-rolled annealed at 760-930 degrees C for 15 sec - 2 hrs. cooled at a speed comparable to still air cooling, and then cold rolled with >=80% reduction. After this, the steel is decarburised by heating for 2 min at 800 degrees C in nitrogen and wet hydrogen and given a texturising anneal for 8 hr. at 1167 degrees C max. in hydrogen. There can also be no anneal at 760-930 degrees C between the hot and cold rolling.
FR7413792A 1973-05-07 1974-04-19 Silicon steel with high magnetic permeability - prepd. by casting, hot-rolling, annealing and cooling Granted FR2228854A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00358238A US3855021A (en) 1973-05-07 1973-05-07 Processing for high permeability silicon steel comprising copper
US00357973A US3855019A (en) 1973-05-07 1973-05-07 Processing for high permeability silicon steel comprising copper

Publications (2)

Publication Number Publication Date
FR2228854A1 true FR2228854A1 (en) 1974-12-06
FR2228854B1 FR2228854B1 (en) 1979-02-16

Family

ID=26999871

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7413792A Granted FR2228854A1 (en) 1973-05-07 1974-04-19 Silicon steel with high magnetic permeability - prepd. by casting, hot-rolling, annealing and cooling

Country Status (5)

Country Link
BR (1) BR7403627D0 (en)
FR (1) FR2228854A1 (en)
PL (1) PL89829B1 (en)
RO (1) RO69739A (en)
SE (1) SE415196B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355081A1 (en) * 1976-06-17 1978-01-13 Allegheny Ludlum Ind Inc HIGH PERMEABILITY SILICON STEEL AND PROCESS FOR ITS TREATMENT
FR2518120A1 (en) * 1981-12-11 1983-06-17 Nippon Steel Corp PROCESS FOR THE PRODUCTION OF A GRAIN-ORIENTED ELECTROMAGNETIC SHEET OR BAND

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355081A1 (en) * 1976-06-17 1978-01-13 Allegheny Ludlum Ind Inc HIGH PERMEABILITY SILICON STEEL AND PROCESS FOR ITS TREATMENT
FR2518120A1 (en) * 1981-12-11 1983-06-17 Nippon Steel Corp PROCESS FOR THE PRODUCTION OF A GRAIN-ORIENTED ELECTROMAGNETIC SHEET OR BAND

Also Published As

Publication number Publication date
BR7403627D0 (en) 1974-11-19
AU6743274A (en) 1975-10-02
PL89829B1 (en) 1976-12-31
RO69739A (en) 1982-02-01
SE415196B (en) 1980-09-15
FR2228854B1 (en) 1979-02-16

Similar Documents

Publication Publication Date Title
HU9300031D0 (en) Method and device for making cold rolled high quality wound up steel strip
GB1480514A (en) Production of grain-orientated steel sheets
ES423800A1 (en) High permeability cube-on-edge oriented silicon steel and method of making it
GB1428901A (en) Processing for high permeability silicon steel
JPS5638422A (en) Manufacture of cold-rolled lower electromagnetic steel plate
US7198682B2 (en) Process for the production of grain oriented electrical steel
EP0390142A3 (en) Process for producing grain-oriented electrical steel sheet having high magnetic flux density
ES426047A1 (en) Processing for high permeability silicon steel comprising copper
ES426018A1 (en) Processing for high permeability silicon steel comprising copper
JPS5594446A (en) Manufacture of cold rolled steel sheet for ultra deep drawing by continuous annealing
HU177279B (en) Process for producing boron-doped silicon steel having goss-texture
FR2228854A1 (en) Silicon steel with high magnetic permeability - prepd. by casting, hot-rolling, annealing and cooling
GB1197800A (en) Production of Cube-On-Edge Oriented Silicon-Iron.
KR930004481A (en) Manufacturing method of non-oriented electrical steel sheet
GB1457283A (en) Cooling of hot rolled steel stock
GB1430434A (en) Steel sheet
US3756867A (en) Method of producing silicon steels with oriented grains by coiling with aluminum strip
JPS5638420A (en) Manufacture of nonoriented electromagnetic steel strip of excellent magnetism
JPS55145123A (en) Manufacture of cold rolled steel sheet excellent in deep-drawing property
KR950006005A (en) Manufacturing method of oriented electrical steel sheet with excellent magnetic properties
JPS5483620A (en) Manufacture of oriented electrical steel sheet
GB911660A (en) Double oriented iron-silicon magnetic sheets
JPS5585630A (en) Annealing method for nondirectional silicon steel hoop
JPH06240358A (en) Production of nonoriented silicon steel sheet high in magnetic flux density and low in iron loss
JPS56102520A (en) Manufacture of nonoriented silicon steel sheet very low in iron loss

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse