KR20010101411A - 강도-연성 밸런스와 도금 밀착성이 우수한 용융아연도금강판 및 그 제조방법 - Google Patents
강도-연성 밸런스와 도금 밀착성이 우수한 용융아연도금강판 및 그 제조방법 Download PDFInfo
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- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
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- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0222—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating in a reactive atmosphere, e.g. oxidising or reducing atmosphere
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0224—Two or more thermal pretreatments
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
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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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
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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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
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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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0473—Final recrystallisation annealing
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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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0478—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular surface treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/939—Molten or fused coating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12785—Group IIB metal-base component
- Y10T428/12792—Zn-base component
- Y10T428/12799—Next to Fe-base component [e.g., galvanized]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/256—Heavy metal or aluminum or compound thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/256—Heavy metal or aluminum or compound thereof
- Y10T428/257—Iron oxide or aluminum oxide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/259—Silicic material
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- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Coating With Molten Metal (AREA)
Abstract
Description
형광 X 선에 의한 Zn 카운트수 : κ | 랭크 |
0≤κ<500 | 1 (양호) |
500≤κ<1000 | 2 (양호) |
1000≤κ<2000 | 3 (불량) |
2000≤κ<3000 | 4 (불량) |
3000≤κ | 5 (불량) |
Claims (5)
- 용융아연도금 강판의 지철 평균 조성으로C : 0.05 ∼ 0.25 mass%,Si : 2.0 mass% 이하,Mn : 1.0 ∼ 2.5 mass% 및Al : 0.005 ∼ 0.10 mass%을 함유하는 조성이 되고, 도금층 바로 아래의 지철 표층부의 C 농도가 0.02 mass% 이하이고, 또한 지철 조직이 템퍼링 마르텐사이트상과 미세 마르텐사이트상을 함께 50% 이상의 분율로 마르텐사이트상을 함유하며, 잔부는 페라이트상 및 잔류 오스테나이트상으로 이루어진 것을 특징으로 하는 강도-연성 밸런스와 도금 밀착성이 우수한 용융아연도금 강판.
- 제 1 항에 있어서, 상기 도금층 바로 아래의 지철 표층부에서 C 농도가 0.02 mass% 이하인 영역의 결정립계 및 결정립 내의 적어도 한쪽에 Si 산화물, Mn 산화물, Fe 산화물 또는 이들 복합 산화물, 또는 이들 산화물 중에서 선택된 1 종류 이상을 함유한 산화물이 존재하고, 또한 지철 표층부에서의 산화물 생성량이 산소량으로 환산하여 1 ∼ 200mass-ppm 인 것을 특징으로 하는 강도-연성 밸런스와 도금 밀착성이 우수한 용융아연도금 강판.
- 제 1 항 또는 제 2 항에 있어서, 도금층 중의 Fe 함유량이 8 ∼ 12 mass% 인 것을 특징으로 하는 강도-연성 밸런스와 도금 밀착성이 우수한 용융아연도금 강판.
- 강판 평균 조성으로C : 0.05 ∼ 0.25 mass%,Si : 2.0 mass% 이하,Mn : 1.0 ∼ 2.5 mass% 및Al : 0.005 ∼ 0.10 mass%을 함유하는 조성이 되는 열연강판 또는 냉연강판을 하기식을 만족시키는 분위기 중에서 800 ∼ 1000℃ 온도로 가열한 후, 냉각시키고, 산세 감량이 Fe 환산으로 0.05 ∼ 5g/㎡ 이 되는 조건에서 강판 표면을 산세하고, 이어서 연속식 용융아연도금 라인에서 재차 강판을 700 ∼ 850℃ 온도로 가열한 후, 용융아연도금 처리를 실시하는 것을 특징으로 하는 강도-연성 밸런스와 도금 밀착성이 우수한 용융아연도금 강판의 제조방법.log(H2O/H2)≥2.5[C]-3.5 수학식 (1)(여기서, H2O/H2: 분위기 중의 수분과 수소가스의 분압비, [C] : 강중 C량 (mass%) 을 나타낸다)
- 제 4 항에 있어서, 상기 용융아연도금 처리 후 450 ∼ 550℃ 온도에서 합금화 처리를 실시하는 것을 특징으로 하는 강도-연성 밸런스와 도금 밀착성이 우수한 용융아연도금 강판의 제조방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31643999 | 1999-11-08 | ||
JPJP-P-1999-00316439 | 1999-11-08 | ||
JPJP-P-2000-00214713 | 2000-07-14 | ||
JP2000214713 | 2000-07-14 |
Publications (2)
Publication Number | Publication Date |
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KR20010101411A true KR20010101411A (ko) | 2001-11-14 |
KR100561893B1 KR100561893B1 (ko) | 2006-03-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020017008598A KR100561893B1 (ko) | 1999-11-08 | 2000-11-08 | 강도-연성 밸런스와 도금 밀착성이 우수한 용융아연도금강판 및 그 제조방법 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6558815B1 (ko) |
EP (1) | EP1149928B1 (ko) |
KR (1) | KR100561893B1 (ko) |
CN (1) | CN1188534C (ko) |
AU (1) | AU771011B2 (ko) |
CA (1) | CA2360070C (ko) |
DE (1) | DE60006068T2 (ko) |
TW (1) | TW504519B (ko) |
WO (1) | WO2001034862A1 (ko) |
Cited By (1)
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KR100937809B1 (ko) * | 2005-03-31 | 2010-01-20 | 제이에프이 스틸 가부시키가이샤 | 열연강판, 그 제조방법 및 열연강판성형체 |
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DE602004027803D1 (de) | 2003-03-31 | 2010-08-05 | Nippon Steel Corp | Nach dem heisstauchverfahren mit legiertem zink beschichtetes stahlblech und herstellungsverfahren dafür |
EP1612288B9 (en) * | 2003-04-10 | 2010-10-27 | Nippon Steel Corporation | A method for producing a hot-dip zinc coated steel sheet having high strength |
US8021497B2 (en) * | 2003-07-29 | 2011-09-20 | Voestalpine Stahl Gmbh | Method for producing a hardened steel part |
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DE112006003169B4 (de) * | 2005-12-01 | 2013-03-21 | Posco | Stahlbleche zum Warmpressformen mit ausgezeichneten Wärmebehandlungs- und Schlageigenschaften, daraus hergestellte Warmpressteile und Verfahren zu deren Herstellung |
CN101336308B (zh) * | 2006-01-30 | 2012-08-29 | 新日本制铁株式会社 | 成形性及镀覆性优良的高强度热浸镀锌钢板和高强度合金化热浸镀锌钢板及其制造方法和制造装置 |
DE102008040426B4 (de) * | 2008-07-15 | 2015-12-24 | Carl Zeiss Microscopy Gmbh | Verfahren zur Untersuchung einer Oberfläche eines Objekts |
BR112012004303B1 (pt) * | 2009-08-31 | 2020-05-05 | Nippon Steel & Sumitomo Metal Corp | chapa de aço galvanizada de alta resistência |
EP3034644B1 (en) | 2010-09-16 | 2018-12-12 | Nippon Steel & Sumitomo Metal Corporation | High-strength steel sheet and high-strength zinc-coated steel sheet which have excellent ductility and stretch-flangeability and manufacturing method thereof |
CN102011119B (zh) * | 2010-09-17 | 2013-09-18 | 马鞍山钢铁股份有限公司 | 双相钢彩色金相染色剂及其彩色显示方法 |
KR101253885B1 (ko) * | 2010-12-27 | 2013-04-16 | 주식회사 포스코 | 연성이 우수한 성형 부재용 강판, 성형 부재 및 그 제조방법 |
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- 2000-11-06 TW TW089123403A patent/TW504519B/zh not_active IP Right Cessation
- 2000-11-08 WO PCT/JP2000/007836 patent/WO2001034862A1/ja active IP Right Grant
- 2000-11-08 CA CA002360070A patent/CA2360070C/en not_active Expired - Fee Related
- 2000-11-08 DE DE60006068T patent/DE60006068T2/de not_active Expired - Lifetime
- 2000-11-08 KR KR1020017008598A patent/KR100561893B1/ko not_active IP Right Cessation
- 2000-11-08 CN CNB008047073A patent/CN1188534C/zh not_active Expired - Lifetime
- 2000-11-08 US US09/869,903 patent/US6558815B1/en not_active Expired - Lifetime
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100937809B1 (ko) * | 2005-03-31 | 2010-01-20 | 제이에프이 스틸 가부시키가이샤 | 열연강판, 그 제조방법 및 열연강판성형체 |
Also Published As
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EP1149928A4 (en) | 2002-06-05 |
EP1149928A1 (en) | 2001-10-31 |
AU1301901A (en) | 2001-06-06 |
US6558815B1 (en) | 2003-05-06 |
CA2360070A1 (en) | 2001-05-17 |
CN1188534C (zh) | 2005-02-09 |
EP1149928B1 (en) | 2003-10-22 |
CN1343262A (zh) | 2002-04-03 |
TW504519B (en) | 2002-10-01 |
DE60006068T2 (de) | 2004-07-22 |
WO2001034862A1 (fr) | 2001-05-17 |
DE60006068D1 (de) | 2003-11-27 |
KR100561893B1 (ko) | 2006-03-16 |
AU771011B2 (en) | 2004-03-11 |
CA2360070C (en) | 2008-04-01 |
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