KR950014333A - Improvement method of iron loss of oriented electrical steel sheet by magnetic micronization and magnetic micronization device - Google Patents

Improvement method of iron loss of oriented electrical steel sheet by magnetic micronization and magnetic micronization device Download PDF

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Publication number
KR950014333A
KR950014333A KR1019930023954A KR930023954A KR950014333A KR 950014333 A KR950014333 A KR 950014333A KR 1019930023954 A KR1019930023954 A KR 1019930023954A KR 930023954 A KR930023954 A KR 930023954A KR 950014333 A KR950014333 A KR 950014333A
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South Korea
Prior art keywords
steel sheet
roll
oriented electrical
grain
electrical steel
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KR1019930023954A
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Korean (ko)
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KR960005227B1 (en
Inventor
윤영진
차상윤
우종수
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조말수
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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Priority to KR1019930023954A priority Critical patent/KR960005227B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by 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
    • C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
    • 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
    • C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment

Abstract

본 발명은 전기기기의 철심재료로 사용하는 방향성 전기강판의 제조방법에 관한 것으로서, 강판의 압연면에 압연방향과 직각인 미세한 슬립띠를 형성시킴으로써 용력제거소둔에 의해 영향을 받지 않는 지구미세화를 도모하여 철손을 저감시킬 수 있는 지구미세화에 의한 방향성 전기강판의 철손저감방법 및 미세화장치를 제공하고자 하는데, 그 목적이 있다.The present invention relates to a method for manufacturing a grain-oriented electrical steel sheet used as an iron core material of an electric machine, by forming a fine slip band perpendicular to the rolling direction on the rolling surface of the steel sheet to achieve a global micronization that is not affected by the heat removal annealing. The purpose of the present invention is to provide an iron loss reduction method and a refiner device for oriented electrical steel sheet by global micronization that can reduce iron loss.

본 발명은 기계적 방식으로 방향성 전기강판에 있어 자구를 미세화시키는 장치에 있어서, 강판을 권취하거나 풀어주기 위하여 서로 마주보고 위치되는 권취릴(10); 강판에 장력을 부여하기 위하여 서로 마주보고 위치되는 장력부여부(20); 상기 권취릴(10)과 장력부여부(30) 사이에 위치되어 강판을 안내하는 안내부(20;상기 장력부여부(30) 사이에 위치되어 강판의 상부면에 홈을 내는 상면 압입부(40) 및 강판의 하부면에 홈을 내는 하면압입부(50)를 포함하여 구성되는 방향성 전기강판의 자구미세화장치 및 이를 이용하여 방향성 전기강판의 자구를 미세화시켜 철손을 개선시키는 방법을 그 요지로 한다.The present invention provides a device for miniaturizing magnetic domains in a grain-oriented electrical steel sheet in a mechanical manner, the winding reel (10) positioned facing each other to wind or unwind the steel sheet; A tension imparting part 20 facing each other to impart tension to the steel sheet; A guide part 20 positioned between the winding reel 10 and the tension applying part 30 to guide the steel sheet; a top press-fitting part 40 positioned between the tension applying part 30 to form a groove in the upper surface of the steel sheet; ) And a method for improving the iron loss by miniaturizing the magnetic domain of the grain-oriented electrical steel sheet using the magnetic grain-fine device of the grain-oriented electrical steel sheet including the lower surface press-fitting portion 50 which makes a groove in the lower surface of the steel sheet. .

Description

자구미세화에 의한 방향성 전기강판의 철손 개선방법 및 자구미세화 장치Improvement method of iron loss of oriented electrical steel sheet by magnetic micronization and magnetic micronization device

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

제1도는 본 발명의 자구미세화 장치의 사용상태도,1 is a state of use of the magnetic domain micronizing device of the present invention,

제2도의 (가)는 본 발명에 부합되는 자구미세화 장치의 기어롤의 정면도, (나)는 (가)도의 기어롤의 측면도,2 (a) is a front view of the gear roll of the magnetic domain micronizing apparatus according to the present invention, (b) is a side view of the gear roll of (a),

제3도는 본 발명에 부합되는 자구미세화 장치의 또다른 기어롤의 정면도,3 is a front view of another gear roll of the micronization apparatus according to the present invention,

제4도는 본 발명에 따라 압입하여 자구를 미세화한 방향성 전기강판의 압입홉주의의 미세조직 사진으로서, (가)는 표면부의 50배 사진, (나)는 압연방향 단면부의 100배 사진.4 is a microstructure photograph of the indentation hob of the grain-oriented electrical steel sheet press-fitted in accordance with the present invention, (A) is 50 times photograph of the surface portion, (B) 100 times photograph of the cross section of the rolling direction.

Claims (6)

기계적 방식으로 방향성 전기강판에 있어 자구를 미세화시키는 장치에 있어서, 강판을 권취하거나 풀어주기 위하여 서로 마주보고 위치되는 권취릴(10); 강판에 장력을 부여하기 위하여 서로 마주보고 위치되는 장력부여부(30); 상기 권취릴(10)과 장력부여부(30) 사이에 위치되어 강판을 안내하는 안내부(20;상기 장력부여부(30) 사이에 위치되어 강판의 상부면에 홈을 내는 상면 압입부(40) 및 강판의 하부면에 홈을 내는 하면압입부(50)를 포함하여 구성되는 방향성 전기강판의 자구미세화장치An apparatus for miniaturizing magnetic domains in a grain-oriented electrical steel sheet in a mechanical manner, comprising: a winding reel 10 positioned to face each other to wind or unwind steel sheets; A tension imparting portion 30 facing each other to impart tension to the steel sheet; A guide part 20 positioned between the winding reel 10 and the tension applying part 30 to guide the steel sheet; a top press-fitting part 40 positioned between the tension applying part 30 to form a groove in the upper surface of the steel sheet; ) And the micro-fine device of the grain-oriented electrical steel sheet including a lower surface press-fitting portion 50 which makes a groove in the lower surface of the steel sheet 제1항에 있어서, 상기 안내부(20)는 통상의 안내롤로 이루어지고; 상기 장력부여부(30)는 통상의 핀치롤로 이루어지고; 그리고 상기 상, 하면 압입부(40) 및 (50)는 각각 기어롤(41)(51), 워크롤(42)(52) 제1백업롤(43)(53), 및 제2백업롤(44), (44)를 포함하여 구성되는 것을 특징으로 하는 방향성 전기강판의 지구미세화 장치.The method of claim 1, wherein the guide portion 20 is made of a conventional guide roll; The tension portion 30 is made of a conventional pinch roll; The upper and lower press-fit portions 40 and 50 are gear rolls 41 and 51, work rolls 42 and 52, first backup rolls 43 and 53, and second backup rolls, respectively. 44), Globalizing apparatus of a grain-oriented electrical steel sheet comprising a (44). 제2항에 있어서, 상기 기어롤(41)의 표면에는 1-10mm의 간격, 롤의 회전방향에 대하여 45-90°의 날배열각 및 30-150℃의 끝각을 갖는 날(Knife)이 형성되어 있는 것을 특징으로 하는 방향성 전기강판의 지구미세화 장치.The surface of the gear roll 41 is formed with a blade having a gap of 1-10 mm, a blade array angle of 45-90 ° with respect to the rotational direction of the roll, and an end angle of 30-150 ° C. The global micronizing device of the grain-oriented electrical steel sheet, characterized in that. 제3항에 있어서, 상기 날(Knife)이 롤의 길이방향의 중심에 대하여 서로 대칭으로 경사져 있는 것을 특징으로 하는 방향성 전기강판의 자구미세화장치.The device of claim 3, wherein the blades are inclined symmetrically with respect to the center in the longitudinal direction of the roll. 중량%로, 2-4%의 Si,0.02-0.07%의 C,0.02-0.04%의 산가용성 Al,0.06-0.08%의 Mn,0.02-0.03%의 S, 60-90ppm의 N 및 기타 불순물을 함유한 규소강을 통상의 방법으로 열간압연, 열연판소둔, 산세, 냉간압연 및 탈탄소둔한 다음, 고온소둔한 고온소둔 강판 또는 고온소둔한 후 장력코팅한 장력코팅 강판에 기계적 변형을 부여하여 자구를 미세화시킴으로써 방향성 전기강판의 절손을 개선시키는 방법에 있어서, 위로부터 기어롤(41), 워크롤(42), 제1백업롤(43) 및 제2백업롤(44)의 순으로 배치되어 구성되는 상면 압입부(40) 및 위로부터 제2백업롤(54), 제1백업롤(53), 워크롤(52), 및 기어롤(51)의 순으로 배치되어 구성되는 하면 압입부(50)를 포함하여 구성되는 자구미세화 장치를 사용하여 상기 고온소둔 강판 또는 장력 코팅강판을 80-140kg/㎟의 압입하중하에서 상기 기어롤(41)과 워크롤(42) 사이와 워크롤(52)과 기어롤(51) 사이로 통판시켜 상기 강판의 상, 하면을 압입하여 상, 하면에 흠집을 내어 자구를 미세화시키는 것을 특징으로 하는 자구미세화에 의한 방향성전기강판의 철손개선방법.By weight% 2-4% Si, 0.02-0.07% C, 0.02-0.04% acid soluble Al, 0.06-0.08% Mn, 0.02-0.03% S, 60-90 ppm N and other impurities Hot-rolled, hot-rolled sheet annealing, pickling, cold rolling and de-carbon annealing of the containing silicon steel in a conventional manner, and then mechanically impart mechanical deformation to the hot-annealed hot-rolled steel sheet or the tension-coated tension-coated steel sheet after hot-annealed In the method for improving the breakage of the grain-oriented electrical steel sheet by miniaturizing the structure, the gear roll 41, the work roll 42, the first backup roll 43 and the second backup roll 44 are arranged in order from above. The upper surface press-fitting portion 40 and the lower back press-fitting portion 50 configured to be arranged in the order of the second backup roll 54, the first backup roll 53, the work roll 52, and the gear roll 51 from above. The gear roll 41 and the work roll 42 of the hot-annealed steel sheet or tension coated steel sheet under a press-fitting load of 80-140 kg / mm 2 using a magnetic micronizing device comprising a). Iron loss of the grain-oriented electrical steel sheet by micronized microstructure, characterized in that the plate is pressed between the work roll 52 and the gear roll 51 to press the upper and lower surfaces of the steel sheet to scratch the upper and lower surfaces, thereby minimizing the magnetic domain. How to improve. 제5항에 있어서, 상기 기어롤(41) 및 (51)로서, 그 표면에 1-10mm간격, 롤의 회전 방향에 대하여 45-90°의 날 배열각 및 30-150℃의 끝각을 갖는 날(Knife)이 형성되어 있는 기어롤을 사용하는 것을 특징으로 하는 자구미세화에 의한 방향성 전기강판의 철손개선방법.6. The blade according to claim 5, wherein the gear rolls (41) and (51) have a 1-10 mm gap on their surface, a blade arrangement angle of 45-90 ° with respect to the rotational direction of the roll, and an end angle of 30-150 ° C. The iron loss improvement method of the grain-oriented electrical steel sheet by the magnetization refinement | miniaturization characterized by using the gear roll in which (Knife) is formed. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930023954A 1993-11-11 1993-11-11 Method of magnetic domain microscopic KR960005227B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019125067A1 (en) * 2017-12-21 2019-06-27 주식회사 포스코 Transformer iron core processing apparatus and transformer iron core processing method
WO2021155280A1 (en) * 2020-01-31 2021-08-05 Arcanum Alloys, Inc. Modified steel compositions and methods related thereto
US11261516B2 (en) 2016-05-20 2022-03-01 Public Joint Stock Company “Severstal” Methods and systems for coating a steel substrate

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104203486B (en) * 2012-04-27 2016-08-24 新日铁住金株式会社 Grain-oriented magnetic steel sheet and manufacture method thereof
KR102428376B1 (en) * 2021-01-21 2022-08-01 포항공과대학교 산학협력단 Apparatus and Method for Manufacturing Electrical Steel Sheet having Grain-oriented Texture by Extreme Asymmetric Rolling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11261516B2 (en) 2016-05-20 2022-03-01 Public Joint Stock Company “Severstal” Methods and systems for coating a steel substrate
WO2019125067A1 (en) * 2017-12-21 2019-06-27 주식회사 포스코 Transformer iron core processing apparatus and transformer iron core processing method
WO2021155280A1 (en) * 2020-01-31 2021-08-05 Arcanum Alloys, Inc. Modified steel compositions and methods related thereto

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