KR950014329A - Manufacturing method of oriented electrical steel sheet with excellent magnetic properties - Google Patents

Manufacturing method of oriented electrical steel sheet with excellent magnetic properties Download PDF

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Publication number
KR950014329A
KR950014329A KR1019930023735A KR930023735A KR950014329A KR 950014329 A KR950014329 A KR 950014329A KR 1019930023735 A KR1019930023735 A KR 1019930023735A KR 930023735 A KR930023735 A KR 930023735A KR 950014329 A KR950014329 A KR 950014329A
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South Korea
Prior art keywords
steel sheet
oriented electrical
electrical steel
magnetic properties
annealing
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KR1019930023735A
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Korean (ko)
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KR960003900B1 (en
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이청산
우종수
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조말수
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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Priority to KR1019930023735A priority Critical patent/KR960003900B1/en
Publication of KR950014329A publication Critical patent/KR950014329A/en
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    • 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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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

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

Abstract

본 발명은 권취온도 및 P의 함량을 정확하게 제어하여 최적의 1차 재결정 집합조직을 형성시키는 방법으로, 자기특성이 우수한 박물 저철손 고자속밀도 방향성 전기강판의 제조방법을 제공하고자 하는데 그 목적이 있다.An object of the present invention is to provide a method for producing a low magnetic loss high magnetic flux density oriented electrical steel sheet having excellent magnetic properties by precisely controlling the winding temperature and the content of P to form an optimal primary recrystallized texture. .

본 발명은 중량%로, C : 0.030-0.100%, Si : 2.50-4.00%, Mn : 0.030-0.150, S : 0.010-0.050%, 산가용성 Al : 0.010-0.050%, N : 0.030-0.0120%, Cu : 0.300%, -0.300%, P 및 잔부 Fe로 이루어진 규소강 슬라브를 통상의 방법으로 열간압연, 석출소둔, 산세, 냉간압연, 탈탄소둔, 소둔분리제 도포, 및 고온소둔에 의해 강판두께가 0.15-0.27mm인 방향성 전기강판을 제조하는 방법에 있어서, 상기 규소상 슬라브중의 P를 0.030-0.200중량%가 되도록 제어하고, 2.0-2.3mm두께로 열간압연후, 권취온도 150-550℃에서 권취하는 것을 특징으로 하는 자기특성이 우수한 방향성 전기강판의 제조방법을 제공하는 것을 그 요지로 한다.The present invention is in weight%, C: 0.030-0.100%, Si: 2.50-4.00%, Mn: 0.030-0.150, S: 0.010-0.050%, acid-soluble Al: 0.010-0.050%, N: 0.030-0.0120%, Cu: 0.300%, -0.300%, silicon steel slab consisting of P and the balance Fe, hot rolled, precipitated annealing, pickling, cold rolling, decarbonization, application of annealing separator, and hot annealing In the method for producing a grain-oriented electrical steel sheet of 0.15-0.27mm, P in the silicon-like slab is controlled to be 0.030-0.200% by weight, hot-rolled to a thickness of 2.0-2.3mm, and then at a coiling temperature of 150-550 ℃ It is an object of the present invention to provide a method for producing a grain-oriented electrical steel sheet having excellent magnetic properties, characterized by winding up.

본 발명은 P의 첨가량 및 권취온도를 적절히 제어하여 최적의 1차 재결정 집합조직을 형성시켜 박물제품에도 적용될 수 있는 자기적 특성이 우수한 저철손 고자속밀도 방향성 전기강판을 제공하는 효과가 있다.The present invention has an effect of providing a low iron loss high magnetic flux density oriented electrical steel sheet having excellent magnetic properties that can be applied to a product by forming an optimal primary recrystallized texture by appropriately controlling the addition amount and winding temperature of P.

Description

자기특성이 우수한 방향성 전기강판의 제조방법Manufacturing method of oriented electrical steel sheet with excellent magnetic properties

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 P의 첨가량 및 권취온도에 따른 1차 재결정 집합조직의 변화를 나타낸 그래프.1 is a graph showing the change of primary recrystallized texture according to the amount of P added and the coiling temperature.

제 2 도는 P의 첨가량 및 권취온도에 따른 P의 입계 편석량의 변화를 나타낸 그래프.2 is a graph showing the change of grain boundary segregation amount of P according to the addition amount of P and the coiling temperature.

Claims (1)

중량%로, C : 0.030-0.100%, Si : 2.50-4.00%, Mn : 0.030-0.150%, S : 0.010-0.050%, 산가용성 Al : 0.010-0.050%, N : 0.0030-0.0120%, Cu : 0.030-0.300%, P 및 잔부 Fe로 이루어진 규소강 슬라브를 통상의 방법으로 열간압연, 석출소둔, 산세, 냉간압연, 탈탄소둔, 소둔분리제도포, 및 고온소둔에 의해 강판두께가 0.15-0.27mm인 방향성 전기강판을 제조하는 방법에 있어서, 상기 규소강 슬라브 중의 P를 0.030-0.200중량%가 되도록 제어하고, 2.0-2.3mm 두께로 열간압연한 후, 권취온도 150-550℃에서 권취하는 것을 특징으로 하는 자기특성이 우수한 방향성 전기강판의 제조방법.By weight, C: 0.030-0.100%, Si: 2.50-4.00%, Mn: 0.030-0.150%, S: 0.010-0.050%, acid soluble Al: 0.010-0.050%, N: 0.0030-0.0120%, Cu: The steel sheet thickness is 0.15-0.27mm by the hot rolling, precipitation annealing, pickling, cold rolling, decarbon annealing, annealing separation coating, and high temperature annealing of the silicon steel slab composed of 0.030-0.300%, P and the balance Fe. In the method for producing a oriented electrical steel sheet, P in the silicon steel slab is controlled to be 0.030-0.200% by weight, hot-rolled to a thickness of 2.0-2.3mm, and then wound at a coiling temperature of 150-550 ℃ Method for producing a grain-oriented electrical steel sheet having excellent magnetic properties. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930023735A 1993-11-09 1993-11-09 Process for the production of oriented electrical steel sheet having excellent magnetic properties KR960003900B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930023735A KR960003900B1 (en) 1993-11-09 1993-11-09 Process for the production of oriented electrical steel sheet having excellent magnetic properties

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930023735A KR960003900B1 (en) 1993-11-09 1993-11-09 Process for the production of oriented electrical steel sheet having excellent magnetic properties

Publications (2)

Publication Number Publication Date
KR950014329A true KR950014329A (en) 1995-06-15
KR960003900B1 KR960003900B1 (en) 1996-03-23

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KR1019930023735A KR960003900B1 (en) 1993-11-09 1993-11-09 Process for the production of oriented electrical steel sheet having excellent magnetic properties

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