KR960017873A - Manufacturing method of non-oriented electrical steel sheet with high tensile strength - Google Patents

Manufacturing method of non-oriented electrical steel sheet with high tensile strength Download PDF

Info

Publication number
KR960017873A
KR960017873A KR1019940030006A KR19940030006A KR960017873A KR 960017873 A KR960017873 A KR 960017873A KR 1019940030006 A KR1019940030006 A KR 1019940030006A KR 19940030006 A KR19940030006 A KR 19940030006A KR 960017873 A KR960017873 A KR 960017873A
Authority
KR
South Korea
Prior art keywords
oriented electrical
steel sheet
less
electrical steel
high tensile
Prior art date
Application number
KR1019940030006A
Other languages
Korean (ko)
Other versions
KR970007160B1 (en
Inventor
박종태
우종수
김영모
Original Assignee
김만제
포항종합제철 주식회사
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 김만제, 포항종합제철 주식회사 filed Critical 김만제
Priority to KR1019940030006A priority Critical patent/KR970007160B1/en
Publication of KR960017873A publication Critical patent/KR960017873A/en
Application granted granted Critical
Publication of KR970007160B1 publication Critical patent/KR970007160B1/en

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
    • C21D8/1272—Final recrystallisation annealing
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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

Landscapes

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

Abstract

본 발명은 규소강 스라브의 성분, 특히 Sn의 함량을 조정하고 스라브 재가열 온도 및 최종소둔 조건을 적절히 제어하므로서 항장력이 높은 무방향성 전기 강판을 제조하는 방법을 제공함에 그 목적이 있다.It is an object of the present invention to provide a method for producing a non-oriented electrical steel sheet having high tensile strength by adjusting the content of silicon steel slab, in particular Sn, and appropriately controlling the slab reheating temperature and the final annealing condition.

본 발명은 무방향성 전기 강판의 제조방법에 있어서, 중량%로 C : 0.040% 이하, Si : 2.0~4.0%, Al : 0.1~1.5%, Mn : 0.1~1.5%, S : 0.010% 이하, N : 0.010% 이하, O : 0.010% 이하, Sn : 0.01~0.40%, 나머지 Fe 및 불가피하게 함유되는 불순물로 조성되는 규소강 스라브를 1,000~1,200°C 온도 범위에서 재가열한 후, 통상의 방법으로 열간압연 및 열연판소둔을 하고, 최종 두께까지 1회 또는 2회 냉간 압연한 다음, 650~850°C 온도 범위에서 10초~15분 동안 최종 소둔함을 특징으로 하는 항장력이 높은 무방향성 전기 강판의 제조하는 방법을 제공함을 그 요지로 한다.The present invention provides a method for producing a non-oriented electrical steel sheet, by weight% C: 0.040% or less, Si: 2.0-4.0%, Al: 0.1-1.5%, Mn: 0.1-1.5%, S: 0.010% or less, N : 0.010% or less, O: 0.010% or less, Sn: 0.01-0.40%, silicon steel slab composed of remaining Fe and unavoidably contained impurities, after reheating in a temperature range of 1,000-1,200 ° C., and then hot Rolling and hot-rolled sheet annealing, cold rolling once or twice to the final thickness, and then final annealing for 10 seconds to 15 minutes in the temperature range of 650 ~ 850 ° C of high tensile non-oriented electrical steel sheet The gist of the invention is to provide a manufacturing method.

Description

항장력이 높은 무방향성 전기 강판의 제조방법Manufacturing method of non-oriented electrical steel sheet with high tensile strength

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (1)

무방향성 전기 강판의 제조방법에 있어서, 중량%로 C : 0.040% 이하, Si : 2.0~4.0%, Al : 0.1~1.5%, Mn : 0.1~1.5%, S : 0.010% 이하, N : 0.010% 이하, O : 0.010% 이하, Sn : 0.01~0.40%, 나머지 Fe 및 불가피하게 함유되는 불순물로 조성되는 규소강 스라브를 1,000~1,200°C 온도 범위에서 재가열한 후, 통상의 방법으로 열간압연 및 열연판소둔을 하고, 최종 두께까지 1회 또는 2회 냉간 압연한 다음, 650~850°C 온도 범위에서 10초~15분 동안 최종 소둔함을 특징으로 하는 항장력이 높은 무방향성 전기 강판의 제조방법.In the method for producing a non-oriented electrical steel sheet, by weight% C: 0.040% or less, Si: 2.0-4.0%, Al: 0.1-1.5%, Mn: 0.1-1.5%, S: 0.010% or less, N: 0.010% Below, O: 0.010% or less, Sn: 0.01-0.40%, the remaining silicon steel slab composed of Fe and inevitable impurities, after reheating in the temperature range of 1,000 ~ 1,200 ° C, hot rolling and hot rolling in a conventional manner After the sheet annealing, cold rolling once or twice to the final thickness, and then a final annealing for 10 seconds to 15 minutes in the temperature range of 650 ~ 850 ° C high tensile strength non-oriented electrical steel sheet manufacturing method. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940030006A 1994-11-16 1994-11-16 Making method of non oriented electrical steel sheet having high tensile strength KR970007160B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940030006A KR970007160B1 (en) 1994-11-16 1994-11-16 Making method of non oriented electrical steel sheet having high tensile strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940030006A KR970007160B1 (en) 1994-11-16 1994-11-16 Making method of non oriented electrical steel sheet having high tensile strength

Publications (2)

Publication Number Publication Date
KR960017873A true KR960017873A (en) 1996-06-17
KR970007160B1 KR970007160B1 (en) 1997-05-03

Family

ID=19398009

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940030006A KR970007160B1 (en) 1994-11-16 1994-11-16 Making method of non oriented electrical steel sheet having high tensile strength

Country Status (1)

Country Link
KR (1) KR970007160B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100544416B1 (en) * 1997-11-04 2006-05-03 주식회사 포스코 Non-oriented electrical steel sheet with high magnetic flux density and low iron loss and its manufacturing method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100561996B1 (en) 2003-04-10 2006-03-20 신닛뽄세이테쯔 카부시키카이샤 Method for manufacturing non-oriented electrical steel sheet having high magnetic flux density
JP6210182B1 (en) * 2015-12-28 2017-10-11 Ｊｆｅスチール株式会社 Non-oriented electrical steel sheet and method for producing non-oriented electrical steel sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100544416B1 (en) * 1997-11-04 2006-05-03 주식회사 포스코 Non-oriented electrical steel sheet with high magnetic flux density and low iron loss and its manufacturing method

Also Published As

Publication number Publication date
KR970007160B1 (en) 1997-05-03

Similar Documents

Publication Publication Date Title
KR910015707A (en) Manufacturing method of non-oriented electronic steel strip
KR960017873A (en) Manufacturing method of non-oriented electrical steel sheet with high tensile strength
KR940009347A (en) Non-oriented electrical steel sheet with excellent permeability and its manufacturing method
KR910012292A (en) Method of manufacturing non-oriented electrical steel sheet with excellent magnetic properties
KR910018561A (en) Manufacturing method of bidirectional electrical steel sheet with high magnetic flux density
KR920702427A (en) Method for manufacturing non-oriented electrical steel sheet with excellent magnetic properties after distortion removal annealing
KR950006005A (en) Manufacturing method of oriented electrical steel sheet with excellent magnetic properties
KR950018539A (en) Manufacturing method of non-oriented electrical steel sheet with excellent magnetic properties
KR970001579A (en) Coil binding steel with excellent ductility and its manufacturing method
KR960017874A (en) Manufacturing method of high quality non-oriented electrical steel sheet with small magnetic anisotropy
KR970001567A (en) Rough steel manufacturing method for binding steel coil products with excellent toughness
KR970043177A (en) Non-oriented electrical steel sheet with low iron loss and manufacturing method
KR950014328A (en) Method for manufacturing non-oriented electrical steel sheet having excellent high frequency magnetic characteristics
KR960001147A (en) Non-oriented electrical steel sheet manufacturing method with excellent magnetic properties by hot rolling condition control
KR960007799A (en) Manufacturing method of oriented electrical steel sheet
KR980002277A (en) Slab heating method of oriented electrical steel sheet to reduce edge crack of hot rolled sheet
KR960037846A (en) Method for manufacturing non-oriented electrical steel sheet having excellent high frequency magnetic characteristics
KR930002523A (en) Manufacturing method of non-oriented electrical steel sheet
KR970043184A (en) Manufacturing method of high magnetic flux density oriented electrical steel sheet
KR920012483A (en) Manufacturing method of non-oriented electrical steel sheet for large rotor with small magnetic anisotropy
KR960037851A (en) Hot-annealed cold rolled steel sheet excellent in formability and hardening hardening and its manufacturing method
KR950018534A (en) Manufacturing method of ultra low carbon cold rolled steel sheet with excellent workability and age resistance
KR930013162A (en) Manufacturing method of hot rolled steel sheet for high processing
KR950018543A (en) Non-oriented electrical steel sheet with low iron loss and high magnetic flux density and its manufacturing method
KR970043175A (en) Manufacturing method of high quality non-oriented electrical steel sheet with small iron loss

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20030902

Year of fee payment: 7

LAPS Lapse due to unpaid annual fee