KR100544750B1 - 무방향성전기강판의 자장열처리방법 - Google Patents
무방향성전기강판의 자장열처리방법 Download PDFInfo
- Publication number
- KR100544750B1 KR100544750B1 KR1020010085083A KR20010085083A KR100544750B1 KR 100544750 B1 KR100544750 B1 KR 100544750B1 KR 1020010085083 A KR1020010085083 A KR 1020010085083A KR 20010085083 A KR20010085083 A KR 20010085083A KR 100544750 B1 KR100544750 B1 KR 100544750B1
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic field
- steel sheet
- less
- oriented electrical
- heat treatment
- Prior art date
Links
Images
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
- C21D8/1277—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
- C21D8/1283—Application of a separating or insulating coating
-
- 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
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
Claims (5)
- 중량%로, C: 0.01%이하, Si: 3.5%이하, Mn: 0.5%이하, P: 0.15%이하, S: 0.012%이하, Al: 1.2%이하, N: 0.006%이하, Sn: 0.03~0.3%, Cr: 0.05~1.0%, Ca 또는 Ce이 단독 또는 복합으로 0.001~0.010%, 나머지 Fe와 기타 불가피하게 첨가되는 불순물로 조성되는 슬라브를 1100~1250℃ 온도로 재가열하여 열간압연하고, 600~800℃ 온도로 권취한 다음, 산세 및 냉간압연하고, 700~1050℃ 온도에서 냉연판을 최종소둔하는 무방향성 전기강판의 제조방법에 있어서,상기 최종소둔후 냉각과정의 720~200℃의 온도구간에서 폭 10~40ms, 주파수 1~8Hz의 자장을 100~700 Oe의 세기로서 수평자장과 수직자장을 순차적으로 인가하여 자장열처리하는 단계를 포함하여 이루어지는 철손이 낮은 무방향성 전기강판의 자장열처리방법.
- 제 1항에 있어서, 상기 최종소둔후에 절연코팅을 하고 이 코팅층의 경화를 위한 냉각과정에서 상기 자장열처리를 행하는 것을 특징으로 하는 저철손 무방향성 전기강판의 제조방법.
- 제 1항에 있어서, 상기 인가자장은 방형파, 삼각파, 반사인파의 그룹에서 선택된 1종의 교류자장 또는 펄스자장임을 특징으로 하는 자기적특성개선을 위한 저철손 무 방향성 전기강판의 제조방법.
- 제 1항에 있어서, 상기 수평자장과 수직자장의 순차적 인가는,강판의 이송방향으로 수평자장을 인가하는 제1수평자장인가단계,상기 제1수평자장인가를 종료하고, 이어 강판의 이송방향으로 보아 강판의 우측에서 좌측으로 수직자장을 인가하는 제1수직자장인가단계,상기 제1수직자장인가를 종료하고, 이어 강판의 이송방향의 역방향으로 수평자장을 인가하는 제2수평자장인가 단계,상기 제2수평자장인가를 종료하고, 이어 강판의 이송방향으로 보아 강판의 좌측에서 우측으로 수직자장을 인가하는 제2수직자장인가단계를 순차적으로 행하는 것을 포함하여 이루어지는 저철손 무방향성 전기강판의 제조방법.
- 제 1항에 있어서, 상기 자장인가는 350~600℃에서 행하고 30~120℃/sec의 속도로 냉각하는 것을 특징으로 하는 무방향성 전기강판의 자장열처리방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010085083A KR100544750B1 (ko) | 2001-12-26 | 2001-12-26 | 무방향성전기강판의 자장열처리방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010085083A KR100544750B1 (ko) | 2001-12-26 | 2001-12-26 | 무방향성전기강판의 자장열처리방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030054692A KR20030054692A (ko) | 2003-07-02 |
KR100544750B1 true KR100544750B1 (ko) | 2006-01-24 |
Family
ID=32213430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020010085083A KR100544750B1 (ko) | 2001-12-26 | 2001-12-26 | 무방향성전기강판의 자장열처리방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100544750B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4510911B2 (ja) * | 2008-07-24 | 2010-07-28 | 新日本製鐵株式会社 | 高周波用無方向性電磁鋼鋳片の製造方法 |
JP6870687B2 (ja) * | 2017-01-16 | 2021-05-12 | 日本製鉄株式会社 | 無方向性電磁鋼板 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990049605A (ko) * | 1997-12-13 | 1999-07-05 | 이구택 | 저자왜 방향성 전기강판의 제조방법 및 이에 사용되는 자속열처리장치 |
JPH11341749A (ja) * | 1998-05-22 | 1999-12-10 | Nippon Steel Corp | 鉄心の磁界中焼鈍方法 |
JPH11340030A (ja) * | 1998-05-22 | 1999-12-10 | Nippon Steel Corp | 高性能鉄心 |
KR20010028403A (ko) * | 1999-09-21 | 2001-04-06 | 이구택 | 철손이 낮은 무방향성 전기강판 및 그 제조방법 |
KR20010061455A (ko) * | 1999-12-28 | 2001-07-07 | 이구택 | 저자왜 방향성 전기강판의 제조방법과 이에 사용되는제조장치 |
-
2001
- 2001-12-26 KR KR1020010085083A patent/KR100544750B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990049605A (ko) * | 1997-12-13 | 1999-07-05 | 이구택 | 저자왜 방향성 전기강판의 제조방법 및 이에 사용되는 자속열처리장치 |
JPH11341749A (ja) * | 1998-05-22 | 1999-12-10 | Nippon Steel Corp | 鉄心の磁界中焼鈍方法 |
JPH11340030A (ja) * | 1998-05-22 | 1999-12-10 | Nippon Steel Corp | 高性能鉄心 |
KR20010028403A (ko) * | 1999-09-21 | 2001-04-06 | 이구택 | 철손이 낮은 무방향성 전기강판 및 그 제조방법 |
KR20010061455A (ko) * | 1999-12-28 | 2001-07-07 | 이구택 | 저자왜 방향성 전기강판의 제조방법과 이에 사용되는제조장치 |
Also Published As
Publication number | Publication date |
---|---|
KR20030054692A (ko) | 2003-07-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108660295A (zh) | 一种低铁损取向硅钢及其制造方法 | |
JPH0211728A (ja) | 無配向性電気鉄板の超高速焼なまし | |
Honma et al. | Development of non-oriented and grain-oriented silicon steel | |
US4545828A (en) | Local annealing treatment for cube-on-edge grain oriented silicon steel | |
KR100544750B1 (ko) | 무방향성전기강판의 자장열처리방법 | |
SU1744128A1 (ru) | Способ изготовлени анизотропной электротехнической стали | |
JP2000017334A (ja) | 低鉄損でかつ高磁束密度を有する方向性及び無方向性電磁鋼板の製造方法並びに連続焼鈍設備 | |
JP4484711B2 (ja) | 高珪素方向性電磁鋼板の製造方法 | |
KR100544751B1 (ko) | 무방향성전기강판의 자장열처리방법 | |
KR100345722B1 (ko) | 저자왜 방향성 전기강판의 제조방법 및 이에 사용되는제조장치 | |
KR100544742B1 (ko) | 무방향성전기강판의 제조방법 | |
Patri et al. | Magnetic domain refinement of silicon-steel laminations by laser scribing | |
KR100544741B1 (ko) | 무방향성전기강판의 제조방법 | |
KR100544640B1 (ko) | 자기적특성 개선을 위한 무방향성전기강판의자장열처리방법과 이에 이용되는 장치 | |
JP2639227B2 (ja) | 無方向性電磁鋼板の製造方法 | |
JP5131747B2 (ja) | 二方向性電磁鋼板の製造方法 | |
JPS6227126B2 (ko) | ||
Capdevila | Electrical Steels | |
KR100345701B1 (ko) | 무방향성전기강판의제조방법 | |
KR100544641B1 (ko) | 자기특성이 우수한 자기변형이 적은 방향성 전기강판의제조방법 | |
KR100544643B1 (ko) | 동시탈탄질화소둔을 행하는 저온재가열 방향성 전기강판의자장 열처리방법 | |
KR100544740B1 (ko) | 자기변형이 적은 저온재가열 방향성 전기강판의 제조방법 | |
KR100940721B1 (ko) | 전기강판의 자장열처리방법 | |
KR100544739B1 (ko) | 자기변형이 적은 고온재가열 방향성 전기강판의 제조방법 | |
KR100530062B1 (ko) | 자장열처리조건의 제어에 의한 자기변형이 적은 방향성전기강판의 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: 20150108 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: 20180110 Year of fee payment: 13 |
|
FPAY | Annual fee payment |
Payment date: 20200110 Year of fee payment: 15 |