KR960017871A - Manufacturing method of hot rolled coil for manufacturing electric steel sheet with excellent edge quality - Google Patents

Manufacturing method of hot rolled coil for manufacturing electric steel sheet with excellent edge quality Download PDF

Info

Publication number
KR960017871A
KR960017871A KR1019940032270A KR19940032270A KR960017871A KR 960017871 A KR960017871 A KR 960017871A KR 1019940032270 A KR1019940032270 A KR 1019940032270A KR 19940032270 A KR19940032270 A KR 19940032270A KR 960017871 A KR960017871 A KR 960017871A
Authority
KR
South Korea
Prior art keywords
manufacturing
steel sheet
hot rolled
electrical steel
rolled coil
Prior art date
Application number
KR1019940032270A
Other languages
Korean (ko)
Other versions
KR0119556B1 (en
Inventor
김재철
이진술
홍병득
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 KR1019940032270A priority Critical patent/KR0119556B1/en
Publication of KR960017871A publication Critical patent/KR960017871A/en
Application granted granted Critical
Publication of KR0119556B1 publication Critical patent/KR0119556B1/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
    • C22C38/02—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)

Abstract

본 발명은 주로 변압기 및 정지기기 계통의 전기기구 철심제작에 사용되는 일방향성 전기강판의 제조방법에 관한 것으로써 보다 상세하게는 2.80~3.50중량%의 실리콘을 함유하는 일방향성 전기강판용 제조용 열연코일을 제조하는 방법에 관한 것이다.The present invention relates to a method of manufacturing a unidirectional electrical steel sheet mainly used for the production of iron cores of electrical appliances of transformers and stationary systems, and more specifically to a hot rolled coil for manufacturing unidirectional electrical steel sheet containing 2.80 to 3.50% by weight of silicon It relates to a manufacturing method.

본 발명의 에지 품질이 우수한 방향성 전기강판 제조용 열연코일의 제조방법은 중량%로 Si : 2.8~3.5%, C : 0.05~0.07%, 1차 재결정 억제재로서 Al, N, Mn, S, Cu, Sn 및 Sb 중에서 선택된 2종 또는 그 이상의 합이 0.15~0.25%, Fe : 나머지로 조성된 일방향성 전기강판 제조용 슬라브를 1370~1400°C의 온도로 가열하는 단계와, 상기 가열된 슬라브를 45~55%의 압하율로 조압연하는 단계로 이루어진다.The method for producing a hot rolled coil for producing a grain-oriented electrical steel sheet having excellent edge quality according to the present invention is Si: 2.8 to 3.5%, C: 0.05 to 0.07%, and as primary recrystallization inhibitor, Al, N, Mn, S, Cu, Sn. And the sum of two or more selected from Sb is 0.15 ~ 0.25%, Fe: heating the slab for producing a unidirectional electrical steel sheet composed of the remainder to a temperature of 1370 ~ 1400 ° C, and the heated slab 45 ~ 55 Rough rolling is carried out at a reduction ratio of%.

Description

에지(edge)품질이 우수한 전기강판 제조용 열연코일의 제조방법Manufacturing method of hot rolled coil for manufacturing electric steel sheet with excellent edge quality

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

제1도는 본 발명법 및 종래방법에 따라 제조한 일방향성 전기강판 제조용 열연 코일의 사진1 is a photograph of a hot rolled coil for producing a unidirectional electrical steel sheet manufactured according to the present invention method and the conventional method

제2도는 관련 그래프(graph)Figure 2 shows the relevant graph

Claims (1)

중량%로 Si : 2.8~3.5%, C : 0.05~0.07%, 1차 재결정 억제재로서 Al, N, Mn, S, Cu, Sn 및 Sb 중에서 선택된 2종 또는 그 이상의 합이 0.15~0.25%, Fe : 나머지로 조성된 일방향성 전기강판 제조용 슬라브를 1370~1400°C의 온도로 가열하는 단계와, 상기 가열된 슬라브를 45~55%의 압하율로 조압연하는 단계로 이루어지는 것을 특징으로 하는 에지 품질이 우수한 방향성 전기강판 제조용 열연코일의 제조방법.Si: 2.8 to 3.5% by weight, C: 0.05 to 0.07%, the sum of two or more selected from Al, N, Mn, S, Cu, Sn and Sb as the primary recrystallization inhibitor is 0.15 to 0.25%, Fe : Edge quality comprising the step of heating the slab for producing a unidirectional electrical steel sheet made of the remainder to a temperature of 1370 ~ 1400 ° C, and roughly rolling the heated slab at a reduction ratio of 45 ~ 55% Method for producing hot rolled coil for producing excellent grain-oriented electrical steel sheet. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940032270A 1994-11-30 1994-11-30 Making method of hot rolled coil with electrical steel sheet KR0119556B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940032270A KR0119556B1 (en) 1994-11-30 1994-11-30 Making method of hot rolled coil with electrical steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940032270A KR0119556B1 (en) 1994-11-30 1994-11-30 Making method of hot rolled coil with electrical steel sheet

Publications (2)

Publication Number Publication Date
KR960017871A true KR960017871A (en) 1996-06-17
KR0119556B1 KR0119556B1 (en) 1997-10-22

Family

ID=19399904

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940032270A KR0119556B1 (en) 1994-11-30 1994-11-30 Making method of hot rolled coil with electrical steel sheet

Country Status (1)

Country Link
KR (1) KR0119556B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020049920A (en) * 2000-12-20 2002-06-26 이구택 A method for manufacturing hot-rolled steel sheet without the edge defects

Also Published As

Publication number Publication date
KR0119556B1 (en) 1997-10-22

Similar Documents

Publication Publication Date Title
SE8305095D0 (en) METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET HAVING A HIGH MAGNETIC FLUX DENSITY
DE60108985D1 (en) METHOD FOR THE PRODUCTION OF CORNORIENTED ELECTRON BELTS
KR920012500A (en) Manufacturing method of non-oriented electrical steel sheet having excellent magnetic properties and good surface appearance
US5676770A (en) Low leakage flux, non-oriented electromagnetic steel sheet, and core and compact transformer using the same
KR960017871A (en) Manufacturing method of hot rolled coil for manufacturing electric steel sheet with excellent edge quality
EP0374948A3 (en) Very thin electrical steel strip having low core loss and high magnetic flux density and a process for producing the same
AU4834296A (en) Process for producing a steel sheet or strip for making a can, and steel sheet or strip obtained by said process
DE60106445D1 (en) METHOD FOR PRODUCING ALUMINUM FILM FOR RIBS
KR920012479A (en) Manufacturing method of oriented electrical steel sheet with excellent magnetic properties and glass coating properties
KR970043177A (en) Non-oriented electrical steel sheet with low iron loss and manufacturing method
KR930008163A (en) Non-oriented electrical steel sheet with high magnetic flux density and high permeability and its manufacturing method
KR970043182A (en) Method for manufacturing oriented electrical steel sheet by one cold rolling
JPH0699749B2 (en) Manufacturing method of non-oriented electrical steel sheet with good magnetic properties
KR960037846A (en) Method for manufacturing non-oriented electrical steel sheet having excellent high frequency magnetic characteristics
KR940009349A (en) Manufacturing method of non-oriented electrical steel sheet with excellent magnetic properties
KR940009348A (en) Non-oriented electrical steel sheet with excellent magnetic properties and manufacturing method
US6068708A (en) Process of making electrical steels having good cleanliness and magnetic properties
KR950018539A (en) Manufacturing method of non-oriented electrical steel sheet with excellent magnetic properties
KR960001147A (en) Non-oriented electrical steel sheet manufacturing method with excellent magnetic properties by hot rolling condition control
KR950018542A (en) Manufacturing method of non-oriented electrical steel sheet having excellent iron loss and magnetic flux density
KR960007796A (en) Manufacturing method of high magnetic flux density oriented electrical steel sheet
KR980002277A (en) Slab heating method of oriented electrical steel sheet to reduce edge crack of hot rolled sheet
KR930002523A (en) Manufacturing method of non-oriented electrical steel sheet
KR950014328A (en) Method for manufacturing non-oriented electrical steel sheet having excellent high frequency magnetic characteristics
KR920019948A (en) Manufacturing method of non-oriented electrical steel sheet having excellent hot rolled sheet shape and magnetic properties

Legal Events

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

Payment date: 20000731

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee