KR20030052139A - 응력제거소둔 후 철손이 낮고 자속밀도가 높은 무방향성전기강판의 제조방법 - Google Patents
응력제거소둔 후 철손이 낮고 자속밀도가 높은 무방향성전기강판의 제조방법 Download PDFInfo
- Publication number
- KR20030052139A KR20030052139A KR1020010082037A KR20010082037A KR20030052139A KR 20030052139 A KR20030052139 A KR 20030052139A KR 1020010082037 A KR1020010082037 A KR 1020010082037A KR 20010082037 A KR20010082037 A KR 20010082037A KR 20030052139 A KR20030052139 A KR 20030052139A
- Authority
- KR
- South Korea
- Prior art keywords
- annealing
- steel sheet
- steel
- stress relief
- 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
- C21D8/1244—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
- 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
- C21D6/001—Heat treatment of ferrous alloys containing Ni
-
- 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
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
Description
강종 | 성분(중량%) | ||||||||
C | Si | 산가용성Al | Mn | S | N | Ni | Sb | ||
발명강 | A | 0.003 | 0.5 | 0.7 | 0.5 | 0.003 | 0.002 | 2.0 | 미첨가 |
B | 0.005 | 0.6 | 0.6 | 0.6 | 0.003 | 0.003 | 1.5 | 미첨가 | |
C | 0.003 | 0.8 | 0.4 | 0.6 | 0.005 | 0.002 | 2.2 | 미첨가 | |
D | 0.002 | 0.7 | 0.5 | 0.7 | 0.004 | 0.002 | 0.1 | 미첨가 | |
E | 0.003 | 0.6 | 0.6 | 0.8 | 0.003 | 0.003 | 3.0 | 미첨가 | |
F | 0.004 | 0.7 | 0.5 | 0.7 | 0.003 | 0.003 | 0.5 | 미첨가 | |
G | 0.003 | 0.5 | 0.7 | 0.6 | 0.003 | 0.002 | 1.0 | 미첨가 | |
비교강 | A | 0.006* | 0.8 | 0.5 | 0.6 | 0.003 | 0.003 | 2.0 | 미첨가 |
B | 0.003 | 0.05* | 0.7 | 0.6 | 0.003 | 0.002 | 2.0 | 미첨가 | |
C | 0.003 | 1.5* | 0.7 | 0.6 | 0.003 | 0.002 | 2.0 | 미첨가 | |
D | 0.003 | 0.7 | 0.05* | 0.7 | 0.003 | 0.002 | 2.0 | 미첨가 | |
E | 0.003 | 0.5 | 0.6 | 0.05* | 0.003 | 0.003 | 2.0 | 미첨가 | |
F | 0.003 | 0.6 | 0.5 | 0.7 | 0.006* | 0.003 | 2.0 | 미첨가 | |
G | 0.003 | 0.7 | 0.8 | 0.6 | 0.003 | 0.006* | 1.5 | 미첨가 | |
H | 0.003 | 0.7 | 0.8 | 0.6 | 0.003 | 0.003 | 3.5* | 미첨가 | |
I | 0.003 | 0.7 | 0.8 | 0.8 | 0.003 | 0.003 | 0.05* | 미첨가 | |
J | 0.003 | 0.7 | 0.8 | 0.8 | 0.003 | 0.003 | 2.0 | 0.1* | |
*: 본 발명범위를 벗어난 조건임 |
시료번호 | 최종소둔조건 | 철손,W15/50(W/kg) | 자속밀도,B10(T) | 응력제거소둔판결정립도(㎛) | 응력제거소둔판 (200)면강도 | 강종 | ||
소둔온도(℃) | 가열속도(℃) | 소둔시간(분) | ||||||
발명재1 | 725 | 5 | 2 | 2.82 | 1.74 | 160 | 0.58 | 발명강A |
발명재2 | 700 | 10 | 2 | 2.85 | 1.73 | 150 | 0.56 | 발명강B |
발명재3 | 750 | 10 | 2 | 2.80 | 1.74 | 152 | 0.59 | 발명강C |
발명재4 | 700 | 10 | 2 | 2.84 | 1.72 | 156 | 0.51 | 발명강D |
발명재5 | 700 | 10 | 2 | 2.78 | 1.75 | 159 | 0.62 | 발명강E |
발명재6 | 730 | 10 | 2 | 2.83 | 1.73 | 158 | 0.53 | 발명강F |
발명재7 | 700 | 10 | 2 | 2.81 | 1.74 | 153 | 0.55 | 발명강G |
비교재1 | 725 | 3* | 2 | 3.62* | 1.69* | 156 | 0.38* | 발명강F |
비교재2 | 700 | 10 | 2 | 3.80* | 1.73 | 85* | 0.55 | 비교강A |
비교재3 | 750 | 10 | 2 | 3.09* | 1.74 | 152 | 0.57 | 비교강B |
비교재4 | 700 | 10 | 2 | 2.78 | 1.68* | 155 | 0.56 | 비교강C |
비교재5 | 700 | 10 | 2 | 3.06* | 1.74 | 154 | 0.55 | 비교강D |
비교재6 | 730 | 10 | 2 | 3.05* | 1.74 | 155 | 0.56 | 비교강E |
비교재7 | 700 | 10 | 2 | 3.85* | 1.73 | 77* | 0.55 | 비교강F |
비교재8 | 700 | 10 | 2 | 3.84* | 1.73 | 78* | 0.55 | 비교강G |
비교재9 | 730 | 10 | 2 | 3.79 | 1.75 | 155 | 0.62 | 비교강H |
비교재10 | 700 | 10 | 2 | 3.68* | 1.69* | 153 | 0.40* | 비교강I |
비교재11 | 700 | 10 | 2 | 3.10* | 1.74 | 117* | 0.55 | 비교강J |
Claims (1)
- 무방향성 전기강판의 제조방법에 있어서,중량%로, C:0.005%이하, S :0.005%이하, N :0.005%이하, Si:0.1∼1.0%, 산가용성 Al:0.1~1.0%, Mn:0.1~1.0%, Ni:0.1∼3.0%, 나머지 Fe 및 기타 불순물로 조성된 강 슬라브를 1050∼1250℃온도에서 재가열하여 1.8~3.0mm두께로 열간압연하고 600∼800℃온도에서 권취한 다음, 산세척 후 0.2~0.65mm두께로 1회 냉간압연하고, 5℃/초 이상의 승온속도로 승온하여 600∼800℃온도에서 30∼300초동안 소둔한 다음, 수요가 가공 후 700∼850℃온도에서 응력제거소둔하는 것을 포함하여 이루어짐을 특징으로 하는 응력제거소둔후 철손이 낮고 자속밀도가 우수한 무방향성 전기강판의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0082037A KR100530069B1 (ko) | 2001-12-20 | 2001-12-20 | 응력제거소둔 후 철손이 낮고 자속밀도가 높은 무방향성전기강판의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0082037A KR100530069B1 (ko) | 2001-12-20 | 2001-12-20 | 응력제거소둔 후 철손이 낮고 자속밀도가 높은 무방향성전기강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030052139A true KR20030052139A (ko) | 2003-06-26 |
KR100530069B1 KR100530069B1 (ko) | 2005-11-22 |
Family
ID=29576991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2001-0082037A KR100530069B1 (ko) | 2001-12-20 | 2001-12-20 | 응력제거소둔 후 철손이 낮고 자속밀도가 높은 무방향성전기강판의 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100530069B1 (ko) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006068399A1 (en) * | 2004-12-21 | 2006-06-29 | Posco Co., Ltd. | Non-oriented electrical steel sheets with excellent magnetic properties and method for manufacturing the same |
KR100701196B1 (ko) * | 2005-12-21 | 2007-03-29 | 주식회사 포스코 | 자성이 우수한 무방향성 전기강판 및 그 제조 방법 |
KR100940719B1 (ko) * | 2002-12-23 | 2010-02-08 | 주식회사 포스코 | 응력제거 소둔 후 자속밀도 특성이 우수한 무방향성전기강판의 제조방법 |
WO2024122829A1 (ko) * | 2022-12-08 | 2024-06-13 | 주식회사 포스코 | 열연 무방향성 전기강판 및 그의 제조방법 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0819465B2 (ja) * | 1990-02-02 | 1996-02-28 | 日本鋼管株式会社 | 無方向性電磁鋼板の製造方法 |
KR100345706B1 (ko) * | 1996-12-09 | 2002-09-18 | 주식회사 포스코 | 자기적특성이우수한무방향성전기강판및그제조방법 |
KR100395100B1 (ko) * | 1998-06-16 | 2003-10-17 | 주식회사 포스코 | 수요가 열처리후 자성이 우수한 무방향성 전기강판의 제조방법 |
-
2001
- 2001-12-20 KR KR10-2001-0082037A patent/KR100530069B1/ko active IP Right Grant
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100940719B1 (ko) * | 2002-12-23 | 2010-02-08 | 주식회사 포스코 | 응력제거 소둔 후 자속밀도 특성이 우수한 무방향성전기강판의 제조방법 |
WO2006068399A1 (en) * | 2004-12-21 | 2006-06-29 | Posco Co., Ltd. | Non-oriented electrical steel sheets with excellent magnetic properties and method for manufacturing the same |
US7846271B2 (en) | 2004-12-21 | 2010-12-07 | Posco Co., Ltd. | Non-oriented electrical steel sheets with excellent magnetic properties and method for manufacturing the same |
KR100701196B1 (ko) * | 2005-12-21 | 2007-03-29 | 주식회사 포스코 | 자성이 우수한 무방향성 전기강판 및 그 제조 방법 |
WO2024122829A1 (ko) * | 2022-12-08 | 2024-06-13 | 주식회사 포스코 | 열연 무방향성 전기강판 및 그의 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
KR100530069B1 (ko) | 2005-11-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2983128B2 (ja) | 極めて低い鉄損をもつ一方向性電磁鋼板の製造方法 | |
JP3392669B2 (ja) | 極めて低い鉄損をもつ一方向性電磁鋼板の製造方法 | |
KR100779579B1 (ko) | 철손이 낮고 자속밀도가 높은 무방향성 전기강판의제조방법 | |
KR19980063732A (ko) | 자기적 특성이 우수한 무방향성 전기강판 및 그 제조방법 | |
JP2000256810A (ja) | 低磁場高周波での磁気特性及び打ち抜き加工性に優れる方向性けい素鋼板及びその製造方法 | |
KR100395100B1 (ko) | 수요가 열처리후 자성이 우수한 무방향성 전기강판의 제조방법 | |
JP3921806B2 (ja) | 方向性珪素鋼板の製造方法 | |
KR100530069B1 (ko) | 응력제거소둔 후 철손이 낮고 자속밀도가 높은 무방향성전기강판의 제조방법 | |
KR100516458B1 (ko) | 자성이 우수한 무방향성 전기강판 및 그 제조방법 | |
KR100544584B1 (ko) | 저 철손 무방향성 전기강판의 제조방법 | |
KR100345701B1 (ko) | 무방향성전기강판의제조방법 | |
KR100340548B1 (ko) | 자성이우수한무방향성전기강판의제조방법 | |
KR101089302B1 (ko) | 철손이 낮고 자속밀도가 높은 무방향성 전기강판의 제조방법 | |
KR100940719B1 (ko) | 응력제거 소둔 후 자속밀도 특성이 우수한 무방향성전기강판의 제조방법 | |
KR100435480B1 (ko) | 자성이 우수한 세미프로세스 무방향성 전기강판의 제조방법 | |
KR100890812B1 (ko) | 철손이 낮고 자속밀도가 높은 무방향성 전기강판의제조방법 | |
KR100544612B1 (ko) | 자성이 우수한 무방향성 전기강판의 제조방법 | |
KR100466176B1 (ko) | 응력제거소둔 후 철손이 낮은 무방향성 전기강판의 제조방법 | |
KR100940714B1 (ko) | 응력제거소둔 후 철손특성이 우수한 무방향성 전기강판의제조방법 | |
KR100530047B1 (ko) | 응력제거소둔후 철손이 개선된 무방향성 전기강판 및 그제조방법 | |
JP7214974B2 (ja) | 方向性電磁鋼板の製造方法 | |
KR100544738B1 (ko) | 수요가 가공시 타발성이 우수하며 응력제거소둔후 철손이낮은 무방향성 전기강판의 제조방법 | |
JP3498978B2 (ja) | 極めて低い鉄損をもつ一方向性電磁鋼板の製造方法 | |
KR100825560B1 (ko) | 무방향성 전기강판의 제조방법 | |
JP3392695B2 (ja) | 極めて優れた鉄損特性を有する一方向性電磁鋼板の製造方法 |
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: 20121102 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20131101 Year of fee payment: 9 |
|
FPAY | Annual fee payment |
Payment date: 20141107 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20151112 Year of fee payment: 11 |
|
FPAY | Annual fee payment |
Payment date: 20161114 Year of fee payment: 12 |
|
FPAY | Annual fee payment |
Payment date: 20171110 Year of fee payment: 13 |
|
FPAY | Annual fee payment |
Payment date: 20181114 Year of fee payment: 14 |
|
FPAY | Annual fee payment |
Payment date: 20191114 Year of fee payment: 15 |