KR20040055906A - 철손이 낮은 무방향성 전기강판의 제조방법 - Google Patents
철손이 낮은 무방향성 전기강판의 제조방법 Download PDFInfo
- Publication number
- KR20040055906A KR20040055906A KR1020020082360A KR20020082360A KR20040055906A KR 20040055906 A KR20040055906 A KR 20040055906A KR 1020020082360 A KR1020020082360 A KR 1020020082360A KR 20020082360 A KR20020082360 A KR 20020082360A KR 20040055906 A KR20040055906 A KR 20040055906A
- Authority
- KR
- South Korea
- Prior art keywords
- less
- annealing
- steel sheet
- iron loss
- oriented electrical
- Prior art date
Links
Classifications
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
-
- 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
- C21D8/1216—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
- 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
- C21D8/1233—Cold 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
- 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
- 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
Abstract
Description
Claims (2)
- 중량%로, C: 0.006% 이하, Si: 1.5% 이하, Mn: 0.75% 이하, P: 0.15% 이하, S: 0.02% 이하, Cu: 0.05% 이하, Al: 0.03~0.30%, N: 0.003% 이하, B: 0.0003~0.005%, 나머지 Fe 및 기타 불순물로 조성되는 슬라브를 1100~1250℃로 재가열한 다음 열간압연하고, 600~750℃에서 권취한 다음 75~85%의 압하율로 냉간압연한 후, 700~950℃에서 2분 이하 소둔하는 것을 포함하여 이루어지는 철손이 낮은 무방향성 전기강판의 제조방법.
- 제1항에 있어서, 상기 소둔 후 응력제거 소둔을 추가로 행하는 것을 특징으로 하는 철손이 낮은 무방향성 전기강판의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020082360A KR100957931B1 (ko) | 2002-12-23 | 2002-12-23 | 철손이 낮은 무방향성 전기강판의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020082360A KR100957931B1 (ko) | 2002-12-23 | 2002-12-23 | 철손이 낮은 무방향성 전기강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040055906A true KR20040055906A (ko) | 2004-06-30 |
KR100957931B1 KR100957931B1 (ko) | 2010-05-13 |
Family
ID=37348341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020020082360A KR100957931B1 (ko) | 2002-12-23 | 2002-12-23 | 철손이 낮은 무방향성 전기강판의 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100957931B1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100957939B1 (ko) * | 2002-12-24 | 2010-05-13 | 주식회사 포스코 | 자성이 우수한 무방향성 전기강판 및 그 제조방법 |
KR101033389B1 (ko) * | 2011-01-04 | 2011-05-09 | 현대하이스코 주식회사 | 플럭스 코드 와이어용 강판 및 그 제조 방법 |
KR20220115308A (ko) * | 2021-02-10 | 2022-08-17 | 엘지전자 주식회사 | 무방향성 전기강판의 제조방법 및 이에 의해 제조된 무방향성 전기강판 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06279859A (ja) * | 1993-03-29 | 1994-10-04 | Nkk Corp | 鉄損および磁束密度が極めて優れた無方向性電磁鋼板の製造方法 |
KR100395100B1 (ko) * | 1998-06-16 | 2003-10-17 | 주식회사 포스코 | 수요가 열처리후 자성이 우수한 무방향성 전기강판의 제조방법 |
KR100359752B1 (ko) * | 1998-12-29 | 2003-01-08 | 주식회사 포스코 | 철손이 낮은 무방향성 전기강판 및 그 제조방법 |
KR100479992B1 (ko) * | 1999-09-22 | 2005-03-30 | 주식회사 포스코 | 자성이 우수한 무방향성 전기강판 및 그 제조방법 |
-
2002
- 2002-12-23 KR KR1020020082360A patent/KR100957931B1/ko active IP Right Grant
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100957939B1 (ko) * | 2002-12-24 | 2010-05-13 | 주식회사 포스코 | 자성이 우수한 무방향성 전기강판 및 그 제조방법 |
KR101033389B1 (ko) * | 2011-01-04 | 2011-05-09 | 현대하이스코 주식회사 | 플럭스 코드 와이어용 강판 및 그 제조 방법 |
KR20220115308A (ko) * | 2021-02-10 | 2022-08-17 | 엘지전자 주식회사 | 무방향성 전기강판의 제조방법 및 이에 의해 제조된 무방향성 전기강판 |
WO2022173159A1 (ko) * | 2021-02-10 | 2022-08-18 | 엘지전자 주식회사 | 무방향성 전기강판의 제조방법 및 이에 의해 제조된 무방향성 전기강판 |
Also Published As
Publication number | Publication date |
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KR100957931B1 (ko) | 2010-05-13 |
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