KR960001147A - Non-oriented electrical steel sheet manufacturing method with excellent magnetic properties by hot rolling condition control - Google Patents

Non-oriented electrical steel sheet manufacturing method with excellent magnetic properties by hot rolling condition control Download PDF

Info

Publication number
KR960001147A
KR960001147A KR1019940012854A KR19940012854A KR960001147A KR 960001147 A KR960001147 A KR 960001147A KR 1019940012854 A KR1019940012854 A KR 1019940012854A KR 19940012854 A KR19940012854 A KR 19940012854A KR 960001147 A KR960001147 A KR 960001147A
Authority
KR
South Korea
Prior art keywords
steel sheet
oriented electrical
electrical steel
hot rolling
magnetic properties
Prior art date
Application number
KR1019940012854A
Other languages
Korean (ko)
Other versions
KR960014510B1 (en
Inventor
박래은
박종태
우종수
Original Assignee
김만제
포항제철 주식회사
신창식
재단법인 산업과학기술연구소
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, 포항제철 주식회사, 신창식, 재단법인 산업과학기술연구소 filed Critical 김만제
Priority to KR1019940012854A priority Critical patent/KR960014510B1/en
Publication of KR960001147A publication Critical patent/KR960001147A/en
Application granted granted Critical
Publication of KR960014510B1 publication Critical patent/KR960014510B1/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
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1222—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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (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 합금원소 첨가만으로서 자기특성을 향상시키는 무방향성 전기강판의 제조방법과는 달리 Sn과 같은 합금원소가 첨가된 무방향성 전기강판의 강조성을 적절히 선정하고 열연조건을 제어하므로서, 자기 특성이 우수한 무방향성 전기강판을 제조하고자 하는데, 그 목적이 있다.The present invention, unlike the manufacturing method of the non-oriented electrical steel sheet to improve the magnetic properties only by the addition of alloying elements, by appropriately selecting the emphasis of the non-oriented electrical steel sheet to which alloy elements such as Sn are added and controlling the hot rolling conditions, To produce this excellent non-oriented electrical steel sheet, the purpose is.

본 발명은 Sn과 같은 합금원소가 첨가된 무방향성 전기강판의 강조성을 갖는 강 슬라브를 1150∼1250℃의 온도 범위에서 재가열후, 열연 단계에서 오스테나이트와 페라이트의 2상 공존 구역에서 반드시 2패스 압연을 실시함을 특징으로 하는 열연조건제어에 의한 자기 특성이 우수한 무방향성 전기강판의 제조방법을 그 요지로 한다.In the present invention, after reheating the steel slab having the stress of the non-oriented electrical steel sheet to which an alloying element such as Sn is added at a temperature range of 1150 to 1250 ° C., two passes must be performed in the two-phase coexistence zone of austenite and ferrite in the hot rolling step. The summary of the method is a method of manufacturing a non-oriented electrical steel sheet having excellent magnetic properties by hot rolling condition control characterized by rolling.

Description

열간압연 조건 제어에 의한 자기 특성이 우수한 무방향성 전기 강판제조방법Non-oriented electrical steel sheet manufacturing method with excellent magnetic properties by hot rolling condition control

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

Claims (1)

중량%로, C : 0.015%이하, Si : 1.50%이하, Mn : 0.50%이하, P : 0.05-0.10%, S : 0.01%이하, N : 0.008%이하, Cu : 0.05∼0.50%, Al : 0.5%이하, Sn : 0.05%∼0.30%, 잔부 Fe 및 기타 불가피한 불순물로 조성된 강 슬라브를 1150∼1250℃의 온도 범위에서 재가열한 후, 열연단계에서 오스테나이트와 페라이트의 2상 공존 구역에서 반드시 2패스 압연을 하고, 통상의 열연판 소둔, 사세, 냉간압연 및 소둔함을 특징으로 하는 열간 압연 조건 제어에 의한 자기특성이 우수한 무방향성 전기강판의 제조방법.By weight%, C: 0.015% or less, Si: 1.50% or less, Mn: 0.50% or less, P: 0.05-0.10%, S: 0.01% or less, N: 0.008% or less, Cu: 0.05 to 0.50%, Al: Less than 0.5%, Sn: 0.05% to 0.30%, remainder Fe and other unavoidable impurities, the steel slab must be reheated at a temperature range of 1150 to 1250 ° C, and then in the hot rolling step in the two phase coexistence zone of austenite and ferrite. A method for producing a non-oriented electrical steel sheet having excellent magnetic properties by controlling the hot rolling conditions by performing two-pass rolling and carrying out ordinary hot rolled sheet annealing, sacheting, cold rolling and annealing. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940012854A 1994-06-08 1994-06-08 Method for manufacturing non-oriented electro magnetic steel plates with excellent magnetic characteristic KR960014510B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940012854A KR960014510B1 (en) 1994-06-08 1994-06-08 Method for manufacturing non-oriented electro magnetic steel plates with excellent magnetic characteristic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940012854A KR960014510B1 (en) 1994-06-08 1994-06-08 Method for manufacturing non-oriented electro magnetic steel plates with excellent magnetic characteristic

Publications (2)

Publication Number Publication Date
KR960001147A true KR960001147A (en) 1996-01-25
KR960014510B1 KR960014510B1 (en) 1996-10-16

Family

ID=19384880

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940012854A KR960014510B1 (en) 1994-06-08 1994-06-08 Method for manufacturing non-oriented electro magnetic steel plates with excellent magnetic characteristic

Country Status (1)

Country Link
KR (1) KR960014510B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010064943A (en) * 1999-12-20 2001-07-11 이구택 A method for manufacturing non grain oriented electrical steel sheet having high magnetic induction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010064943A (en) * 1999-12-20 2001-07-11 이구택 A method for manufacturing non grain oriented electrical steel sheet having high magnetic induction

Also Published As

Publication number Publication date
KR960014510B1 (en) 1996-10-16

Similar Documents

Publication Publication Date Title
KR960034447A (en) A thin steel sheet having excellent moldability and a manufacturing method thereof
KR950016903A (en) Manufacturing method of high strength can steel sheet with low anisotropy
KR910015707A (en) Manufacturing method of non-oriented electronic steel strip
KR940009347A (en) Non-oriented electrical steel sheet with excellent permeability and its manufacturing method
KR960001147A (en) Non-oriented electrical steel sheet manufacturing method with excellent magnetic properties by hot rolling condition control
FI916064A (en) Process for the production of stainless steel having a martensite / ferrite two-phase structure and steel produced by this process
KR920702427A (en) Method for manufacturing non-oriented electrical steel sheet with excellent magnetic properties after distortion removal annealing
KR970001579A (en) Coil binding steel with excellent ductility and its manufacturing method
KR960021226A (en) Manufacturing method of super high tensile over-vacuum carbon steel wire with excellent ductility
KR950006005A (en) Manufacturing method of oriented electrical steel sheet with excellent magnetic properties
KR970059284A (en) Manufacturing method of double phase ferrite stainless steel strip
KR970043177A (en) Non-oriented electrical steel sheet with low iron loss and manufacturing method
KR960017873A (en) Manufacturing method of non-oriented electrical steel sheet with high tensile strength
KR950018578A (en) Manufacturing method of high strength cold rolled steel sheet for high processing with excellent resistance to low temperature brittleness
KR920012479A (en) Manufacturing method of oriented electrical steel sheet with excellent magnetic properties and glass coating properties
KR950018542A (en) Manufacturing method of non-oriented electrical steel sheet having excellent iron loss and magnetic flux density
KR970001567A (en) Rough steel manufacturing method for binding steel coil products with excellent toughness
KR970065740A (en) Manufacturing method of ferritic stainless steel excellent in corrosion resistance and moldability
KR950018539A (en) Manufacturing method of non-oriented electrical steel sheet with excellent magnetic properties
KR950018579A (en) Ultra-high strength cold rolled steel manufacturing method with excellent ductility
KR950018534A (en) Manufacturing method of ultra low carbon cold rolled steel sheet with excellent workability and age resistance
KR970015774A (en) High toughness coil binding steel and manufacturing method
KR960021189A (en) Manufacturing method of core pulled cold rolled steel sheet using thin slab
KR950018543A (en) Non-oriented electrical steel sheet with low iron loss and high magnetic flux density and its manufacturing method
KR970043180A (en) Manufacturing method of oriented electrical steel sheet excellent in magnetic and decarburization

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: 20031002

Year of fee payment: 8

LAPS Lapse due to unpaid annual fee