KR100544610B1 - 철손이 낮은 무방향성 전기강판의 제조방법 - Google Patents
철손이 낮은 무방향성 전기강판의 제조방법 Download PDFInfo
- Publication number
- KR100544610B1 KR100544610B1 KR1020010083197A KR20010083197A KR100544610B1 KR 100544610 B1 KR100544610 B1 KR 100544610B1 KR 1020010083197 A KR1020010083197 A KR 1020010083197A KR 20010083197 A KR20010083197 A KR 20010083197A KR 100544610 B1 KR100544610 B1 KR 100544610B1
- Authority
- KR
- South Korea
- Prior art keywords
- annealing
- less
- electrical steel
- iron loss
- oriented electrical
- Prior art date
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
- 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
- C21D8/1261—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
- 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
- C21D8/1266—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 between cold rolling steps
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- 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
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
Abstract
Description
강 종 | C | Si | Mn | P | S | Al | N | Sn | Ni | Cu |
발명강a | 0.003 | 3.13 | 0.20 | 0.003 | 0.0015 | 1.21 | 0.0013 | 0.12 | 0.18 | 0.09 |
발명강b | 0.003 | 3.12 | 0.21 | 0.004 | 0.0015 | 0.75 | 0.0013 | 0.05 | 0.45 | 0.18 |
발명강c | 0.003 | 3.12 | 0.21 | 0.004 | 0.0008 | 1.60 | 0.0012 | 0.10 | 0.20 | 0.10 |
비교강a | 0.003 | 3.12 | 0.21 | 0.015 | 0.0014 | 1.20 | 0.0013 | 0.10 | 0.20 | 0.18 |
비교강b | 0.003 | 3.13 | 0.20 | 0.004 | 0.0015 | 0.20 | 0.0013 | 0.10 | 0.45 | 0.10 |
비교강c | 0.003 | 3.12 | 1.1 | 0.004 | 0.0016 | 1.21 | 0.0012 | 0.10 | 0.20 | 0.20 |
시료번호 | 열연판 권취온도(℃) | 열연판 소둔온 도(℃) | 열연판 소둔시 간(분) | 냉연판파단 | 냉연판 가열속도 (℃/sec) | 냉연판 소둔온도 (℃) | 냉연판 소둔시간(초) | 철손 (W15/50) W/kg | 강 종 |
비교재1 | 800 | 1000 | 2 | 8 | 1050 | 60 | 2.52 | 발명강a | |
비교재2 | 650 | 1100 | 2 | 파단 | 8 | 1050 | 60 | 2.43 | 발명강a |
비교재3 | 650 | 1000 | 2 | 35 | 1050 | 60 | 2.51 | 발명강a | |
비교재4 | 650 | 1000 | 2 | 8 | 850 | 60 | 2.65 | 발명강a | |
발명재1 | 700 | 720 | 360 | 8 | 1050 | 60 | 2.12 | 발명강a | |
발명재2 | 700 | 1000 | 2 | 22 | 1050 | 60 | 2.35 | 발명강a | |
발명재3 | 650 | 1000 | 2 | 8 | 1050 | 120 | 2.28 | 발명강a | |
발명재4 | 550 | 950 | 5 | 9 | 1000 | 180 | 2.25 | 발명강a | |
발명재5 | 650 | 950 | 20 | 9 | 1070 | 60 | 2.17 | 발명강a | |
발명재6 | 650 | 1000 | 2 | 8 | 1050 | 60 | 2.22 | 발명강b | |
발명재7 | 650 | 1000 | 2 | 8 | 1050 | 60 | 2.18 | 발명강c | |
비교재5 | 650 | 1000 | 2 | 8 | 1050 | 60 | 2.61 | 비교강a | |
비교재6 | 650 | 1000 | 2 | 8 | 1050 | 60 | 2.55 | 비교강b | |
비교재7 | 650 | 1000 | 2 | 8 | 1050 | 60 | 2.52 | 비교강c |
Claims (5)
- 무방향성 전기강판을 제조하는 방법에 있어서,중량%로 C:0.006%이하, Si:2.0~3.5%, Mn:0.4%이하, P:0.01%이하, S:0.005%이하, Al:0.75~2.5%, N:0.003%이하,Sn:0.01~0.20, Ni:0.05~1.5%, Cu:0.01~0.5%, Fe 및 기타 불가피하게 첨가되는 불순물로 조성되는 슬라브를 가열하여 열간압연한 후, 750℃이하로 권취하고, 열연판소둔을 700~1050℃의 온도에서 실시한 다음, 산세 및 냉간압연하고, 또는 중간소둔을 포함한 2회냉간압연을 실시한 후, 최종 냉연판의 소둔시 5~25℃/sec의 승온(가열)속도로 가열하고, 900~1100℃의 온도에서 냉연판을 10초 - 5분동안 소둔하는 것을 특징으로 하는 철손이 낮은 무방향성 전기강판의 제조방법
- 제1항에 있어서, P의 함량이 0.001-0.005%인 것을 특징으로 하는 철손이 낮은 무방향성 전기강판의 제조방법
- 제1항 또는 제2항에 있어서, 열연판 소둔이 700~1050℃의 온도에서 10초 - 10시간동안 행해지는 것을 특징으로 하는 철손이 낮은 무방향성 전기강판의 제조방법
- 제1항 또는 제2항에 있어서, 열연판 소둔이 산세후에 행해지는 것을 특징으로 하는 철손이 낮은 무방향성 전기강판의 제조방법
- 제3항에 있어서, 열연판 소둔이 산세후에 행해지는 것을 특징으로 하는 철손이 낮은 무방향성 전기강판의 제조방법
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010083197A KR100544610B1 (ko) | 2001-12-22 | 2001-12-22 | 철손이 낮은 무방향성 전기강판의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010083197A KR100544610B1 (ko) | 2001-12-22 | 2001-12-22 | 철손이 낮은 무방향성 전기강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030053146A KR20030053146A (ko) | 2003-06-28 |
KR100544610B1 true KR100544610B1 (ko) | 2006-01-24 |
Family
ID=29577758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020010083197A KR100544610B1 (ko) | 2001-12-22 | 2001-12-22 | 철손이 낮은 무방향성 전기강판의 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100544610B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101110247B1 (ko) * | 2004-08-05 | 2012-02-15 | 주식회사 포스코 | 방향성 전기강판의 산화마그네슘 코팅전 미세 볼록흠제거방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0261031A (ja) * | 1988-08-26 | 1990-03-01 | Nkk Corp | 磁気特性の優れた無方向性電磁鋼板およびその製造方法 |
KR950003293A (ko) * | 1993-07-29 | 1995-02-16 | 베르너 발데크 | 신규 고투명성 미립 디케토피롤로피롤 안료 |
JPH0873939A (ja) * | 1994-06-27 | 1996-03-19 | Nkk Corp | 磁気特性に優れた無方向性電磁鋼板の製造方法 |
KR19980051154A (ko) * | 1996-12-23 | 1998-09-15 | 김종진 | 열연판의 산세성과 자성이 우수한 무방향성 전기강판의 제조방법 |
-
2001
- 2001-12-22 KR KR1020010083197A patent/KR100544610B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0261031A (ja) * | 1988-08-26 | 1990-03-01 | Nkk Corp | 磁気特性の優れた無方向性電磁鋼板およびその製造方法 |
KR950003293A (ko) * | 1993-07-29 | 1995-02-16 | 베르너 발데크 | 신규 고투명성 미립 디케토피롤로피롤 안료 |
JPH0873939A (ja) * | 1994-06-27 | 1996-03-19 | Nkk Corp | 磁気特性に優れた無方向性電磁鋼板の製造方法 |
KR19980051154A (ko) * | 1996-12-23 | 1998-09-15 | 김종진 | 열연판의 산세성과 자성이 우수한 무방향성 전기강판의 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20030053146A (ko) | 2003-06-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100345706B1 (ko) | 자기적특성이우수한무방향성전기강판및그제조방법 | |
JP2000129410A (ja) | 磁束密度の高い無方向性電磁鋼板 | |
KR100479992B1 (ko) | 자성이 우수한 무방향성 전기강판 및 그 제조방법 | |
KR100779579B1 (ko) | 철손이 낮고 자속밀도가 높은 무방향성 전기강판의제조방법 | |
KR100395100B1 (ko) | 수요가 열처리후 자성이 우수한 무방향성 전기강판의 제조방법 | |
KR100544584B1 (ko) | 저 철손 무방향성 전기강판의 제조방법 | |
KR20150073802A (ko) | 방향성 전기강판 및 그 제조방법 | |
JPH055126A (ja) | 無方向性電磁鋼板の製造方法 | |
KR100544610B1 (ko) | 철손이 낮은 무방향성 전기강판의 제조방법 | |
KR100359752B1 (ko) | 철손이 낮은 무방향성 전기강판 및 그 제조방법 | |
KR950004933B1 (ko) | 자기특성이 우수한 무방향성 전기강판의 제조방법 | |
KR950002895B1 (ko) | 초고규소 방향성 전자강판 및 그 제조방법 | |
KR100516458B1 (ko) | 자성이 우수한 무방향성 전기강판 및 그 제조방법 | |
KR950003293B1 (ko) | 자기특성이 우수한 무방향성 전기강판 및 그 제조방법 | |
KR930011407B1 (ko) | 자속밀도와 투자율이 높은 무방향성 전기강판 및 그 제조방법 | |
KR100340548B1 (ko) | 자성이우수한무방향성전기강판의제조방법 | |
KR100544612B1 (ko) | 자성이 우수한 무방향성 전기강판의 제조방법 | |
KR100435480B1 (ko) | 자성이 우수한 세미프로세스 무방향성 전기강판의 제조방법 | |
KR100530069B1 (ko) | 응력제거소둔 후 철손이 낮고 자속밀도가 높은 무방향성전기강판의 제조방법 | |
JP2760208B2 (ja) | 高い磁束密度を有する珪素鋼板の製造方法 | |
KR19990033508A (ko) | 무방향성 전기강판의 제조방법 | |
KR100530047B1 (ko) | 응력제거소둔후 철손이 개선된 무방향성 전기강판 및 그제조방법 | |
JP2501219B2 (ja) | 無方向性電磁鋼板の製造方法 | |
KR960003174B1 (ko) | 철손과 자속밀도가 우수한 무방향성 전기강판의 제조방법 | |
KR960003175B1 (ko) | 철손이 낮고 자속밀도가 높은 무방향성 전기강판 및 그 제조방법 |
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: 20130103 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20140103 Year of fee payment: 9 |
|
FPAY | Annual fee payment |
Payment date: 20150115 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20160111 Year of fee payment: 11 |
|
FPAY | Annual fee payment |
Payment date: 20170109 Year of fee payment: 12 |
|
FPAY | Annual fee payment |
Payment date: 20180108 Year of fee payment: 13 |
|
FPAY | Annual fee payment |
Payment date: 20200110 Year of fee payment: 15 |