KR20030053746A - 글래스피막이 없는 저온가열 방향성 전기강판의 제조방법 - Google Patents
글래스피막이 없는 저온가열 방향성 전기강판의 제조방법 Download PDFInfo
- Publication number
- KR20030053746A KR20030053746A KR1020010083736A KR20010083736A KR20030053746A KR 20030053746 A KR20030053746 A KR 20030053746A KR 1020010083736 A KR1020010083736 A KR 1020010083736A KR 20010083736 A KR20010083736 A KR 20010083736A KR 20030053746 A KR20030053746 A KR 20030053746A
- Authority
- KR
- South Korea
- Prior art keywords
- temperature
- steel sheet
- annealing
- glass film
- electrical steel
- Prior art date
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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
- C21D8/1255—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 with diffusion of elements, e.g. decarburising, nitriding
-
- 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
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
-
- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- 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
- C21D8/1261—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
- C21D8/1272—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
- 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
- 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)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
Description
Claims (1)
- 중량%로, Si: 2.9∼3.4%, C: 0.04∼0.07%, P: 0.015∼0.035%, 산가용성 Al: 0.02∼0.035%, N: 0.006∼0.009%, S: 0.004∼0.010%, Mn: 0.008∼0.012%, Cu: 0.012~0.021%, 나머지 Fe 및 불가피한 불순물로 조성되는 강 슬라브를 재가열한 다음 열간압연 및 열연판소둔하고, 산세 및 냉간압연한 후 1차재결정을 겸한 탈탄 및 질화소둔 처리를 동시에 한 공정에서 처리한 다음, MgO, 미립 SiO2분말 및/또는 콜로이달상태의 SiO2와 MgCl2와 Sb2(SO4)3를 혼합한 소둔분리제를 도포하고 최종 마무리 고온소둔한 후 코팅제를 도포하는 것을 포함하여 이루어지는 저온가열 방향성 전기강판의 제조방법에 있어서,상기 1차재결정을 겸한 동시 탈탄 질화소둔온도가 820~890℃의 온도범위에서 하기 관계식 1을 만족하도록 설정되는 것을 특징으로 하는 글래스피막이 없는 저온가열 방향성 전기강판의 제조방법[관계식 1]탈탄질화 온도(℃)= 876 - 7.14 X (MgCl2+ Sb2(SO4)3)(wt%) ± 15
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010083736A KR100544615B1 (ko) | 2001-12-24 | 2001-12-24 | 글래스피막이 없는 저온가열 방향성 전기강판의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010083736A KR100544615B1 (ko) | 2001-12-24 | 2001-12-24 | 글래스피막이 없는 저온가열 방향성 전기강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030053746A true KR20030053746A (ko) | 2003-07-02 |
KR100544615B1 KR100544615B1 (ko) | 2006-01-24 |
Family
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KR1020010083736A KR100544615B1 (ko) | 2001-12-24 | 2001-12-24 | 글래스피막이 없는 저온가열 방향성 전기강판의 제조방법 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101110250B1 (ko) * | 2004-10-13 | 2012-03-13 | 주식회사 포스코 | 단시간 저온 열연판소둔이 가능한 방향성 전기강판의제조방법 |
US10023932B2 (en) | 2012-12-28 | 2018-07-17 | Posco | Grain-oriented electrical steel sheet, and method for manufacturing the same |
US11225700B2 (en) | 2016-10-26 | 2022-01-18 | Posco | Annealing separating agent composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for manufacturing grain oriented electrical steel sheet |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0305966B1 (en) * | 1987-08-31 | 1992-11-04 | Nippon Steel Corporation | Method for producing grain-oriented electrical steel sheet having metallic luster and excellent punching property |
KR100352606B1 (ko) * | 1998-12-26 | 2002-10-19 | 주식회사 포스코 | 방향성 전기강판의 제조방법 |
-
2001
- 2001-12-24 KR KR1020010083736A patent/KR100544615B1/ko active IP Right Grant
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101110250B1 (ko) * | 2004-10-13 | 2012-03-13 | 주식회사 포스코 | 단시간 저온 열연판소둔이 가능한 방향성 전기강판의제조방법 |
US10023932B2 (en) | 2012-12-28 | 2018-07-17 | Posco | Grain-oriented electrical steel sheet, and method for manufacturing the same |
US11225700B2 (en) | 2016-10-26 | 2022-01-18 | Posco | Annealing separating agent composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for manufacturing grain oriented electrical steel sheet |
US11946114B2 (en) | 2016-10-26 | 2024-04-02 | Posco Co., Ltd | Annealing separating agent composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for manufacturing grain oriented electrical steel sheet |
Also Published As
Publication number | Publication date |
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KR100544615B1 (ko) | 2006-01-24 |
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