KR100832342B1 - 자성이 우수한 무방향성 전기강판 및 그 제조방법 - Google Patents
자성이 우수한 무방향성 전기강판 및 그 제조방법 Download PDFInfo
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- KR100832342B1 KR100832342B1 KR1020060127865A KR20060127865A KR100832342B1 KR 100832342 B1 KR100832342 B1 KR 100832342B1 KR 1020060127865 A KR1020060127865 A KR 1020060127865A KR 20060127865 A KR20060127865 A KR 20060127865A KR 100832342 B1 KR100832342 B1 KR 100832342B1
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- steel sheet
- electrical steel
- oriented electrical
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- 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
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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
- C21D8/1216—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
-
- 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
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- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
- H01F1/14791—Fe-Si-Al based alloys, e.g. Sendust
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/16—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
Abstract
Description
Claims (6)
- 삭제
- 중량%로 C:0.004% 이하, Si:1.0~3.5%, P:0.02% 이하, S:0.001% 이하, Al:0.2~2.5%, N:0.003% 이하, Ti:0.004% 이하, Sb:0.005~0.07%, Ni:0.005~0.50%, Cu:0.005~0.20%이고 잔부 Fe 및 기타 불가피하게 첨가되는 불순물로 이루어지되 Mn의 함량이 아래 식(1)을 만족하며,전기강판의 (200)면으로 주어지는 집합조직강도(P200)가 (211)면으로 주어지는 집합조직강도(P211)보다 큰 것을 특징으로 하는 자성이 우수한 무방향성 전기강판.0.10+100×S(중량%)≤Mn(중량%)≤0.21+200×S(중량%) ---------식(1)
- 삭제
- 중량%로 C:0.004% 이하, Si:1.0~3.5%, P:0.02% 이하, S:0.001% 이하, Al:0.2~2.5%, N:0.003% 이하, Ti:0.004% 이하, Sb:0.005~0.07%, Ni:0.005~0.50%, Cu:0.005~0.20%이고 잔부 Fe 및 기타 불가피하게 첨가되는 불순물로 이루어지는 슬라브를 열간압연하고, 상기 열간압연된 강판을 S의 함량에 따라 주어지는 아래 식(3)의 온도 범위로 열연판소둔을 행하고, 상기 열연판소둔을 행한 강판을 냉간압연 후 냉연판소둔을 행하며,상기 공정으로 제조된 제품강판 두께의 중앙에서의 집합조직이 아래 식(2)로 주어지는 것을 특징으로 하는 자성이 우수한 무방향성 전기강판 제조방법.771+165000×S(중량 %)≤열연판소둔 온도(℃)≤851+195000×S(중량 %) --식(3)P200 > P211 ------------------------------------------------식(2)
- 제 4 항에 있어서,상기 열간압연 단계는 슬라브를 1200℃ 이하에서 재가열하고, 권취온도를 680℃ 이하로 하는 것을 특징으로 하는 자성이 우수한 무방향성 전기강판 제조방법.
- 제 5 항에 있어서;상기 냉간압연시 냉간압연 압하율은 70~88%로 하고, 상기 냉연판소둔은 800~1070℃ 의 범위에서 행하는 것을 특징으로 하는 자성이 우수한 무방향성 전기강판 제조방법.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060127865A KR100832342B1 (ko) | 2006-12-14 | 2006-12-14 | 자성이 우수한 무방향성 전기강판 및 그 제조방법 |
CN2006800493271A CN101346484B (zh) | 2005-12-27 | 2006-12-18 | 具有改进的磁性能的无取向电工钢板及其制备方法 |
PCT/KR2006/005521 WO2007074987A1 (en) | 2005-12-27 | 2006-12-18 | Non-oriented electrical steel sheets with improved magnetic property and method for manufacturing the same |
US12/095,209 US7763122B2 (en) | 2005-12-27 | 2006-12-18 | Non-oriented electrical steel sheets with improved magnetic property and method for manufacturing the same |
JP2008545502A JP2009518546A (ja) | 2005-12-27 | 2006-12-18 | 磁性に優れた無方向性電気鋼板およびその製造方法 |
EP06835238A EP1966403A4 (en) | 2005-12-27 | 2006-12-18 | NON-ORIENTED ELECTRIC STEEL PLATE WITH IMPROVED MAGNETIC PROPERTY AND METHOD OF MANUFACTURING THEREOF |
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KR1020060127865A KR100832342B1 (ko) | 2006-12-14 | 2006-12-14 | 자성이 우수한 무방향성 전기강판 및 그 제조방법 |
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KR100832342B1 true KR100832342B1 (ko) | 2008-05-26 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11060170B2 (en) | 2016-12-19 | 2021-07-13 | Posco | Non-oriented electrical steel sheet and manufacturing method therefor |
US11319619B2 (en) | 2016-12-19 | 2022-05-03 | Posco | Non-oriented electrical steel sheet and manufacturing method therefor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005002401A (ja) * | 2003-06-11 | 2005-01-06 | Sumitomo Metal Ind Ltd | 無方向性電磁鋼板の製造方法 |
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- 2006-12-14 KR KR1020060127865A patent/KR100832342B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005002401A (ja) * | 2003-06-11 | 2005-01-06 | Sumitomo Metal Ind Ltd | 無方向性電磁鋼板の製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11060170B2 (en) | 2016-12-19 | 2021-07-13 | Posco | Non-oriented electrical steel sheet and manufacturing method therefor |
US11319619B2 (en) | 2016-12-19 | 2022-05-03 | Posco | Non-oriented electrical steel sheet and manufacturing method therefor |
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