JP5618432B2 - 冷延鋼板およびその製造方法 - Google Patents
冷延鋼板およびその製造方法 Download PDFInfo
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- JP5618432B2 JP5618432B2 JP2013222745A JP2013222745A JP5618432B2 JP 5618432 B2 JP5618432 B2 JP 5618432B2 JP 2013222745 A JP2013222745 A JP 2013222745A JP 2013222745 A JP2013222745 A JP 2013222745A JP 5618432 B2 JP5618432 B2 JP 5618432B2
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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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- 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
-
- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- 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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0273—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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- 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
- C21D2211/004—Dispersions; Precipitations
-
- 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
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Description
Claims (4)
- 質量%で、C:0.03〜0.08%、Si:0〜1.0%、Mn:0.2〜0.8%、P:0.03%以下、S:0.01%以下およびAl:0.05%以下を(1)式を満たすように含有し、かつ、Nb:0.03〜0.4%、V:0.01〜0.3%およびTi:0.01〜0.3%のうちの少なくとも1種を(2)式を満たすように含有し、残部がFeおよび不可避的不純物からなる化学成分であり、
析出物であるNb、VおよびTiのうちのいずれかを含む炭化物の平均粒径が20〜100nmであり、
断面組織において、長径が5μm以上の大きさの第2相組織の面積率が5%以下であり、
断面硬さ200HV以上350HVである
ことを特徴とする冷延鋼板。
5×C%−Si%+Mn%−1.5×Al%<1・・・(1)
0.04<(Nb%÷1.4)+(V%÷1.1)+Ti%<0.3・・・(2) - 質量%で、Cr:0.10〜2.0%、Ni:0.05〜0.5%、Mo:0.05〜0.5%およびB:0.0002〜0.002%の少なくとも1種を(3)式を満たすように含有する化学成分である
ことを特徴とする請求項1記載の冷延鋼板。
5×C%−Si%+Mn%+1.6×Cr%+0.8×Ni%−1.5×Al%<1・・・(3) - 鋼板表面から少なくとも200μmまでの表層部における析出物であるNb、VおよびTiのうちのいずれかを含む炭化物の平均粒径が20〜100nmである
ことを特徴とする請求項1または2記載の冷延鋼板。 - 請求項1または2記載の化学成分の鋼スラブを溶製し、
この鋼スラブを1200℃以上に加熱し熱間圧延して熱延鋼板とし、
この熱延鋼板を550〜700℃で巻き取って熱延コイルとし、
この熱延コイルを、冷間圧延するか、または、焼鈍および冷間圧延することにより、断面硬さを200〜350HVにする
ことを特徴とする冷延鋼板の製造方法。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013222745A JP5618432B2 (ja) | 2013-01-31 | 2013-10-25 | 冷延鋼板およびその製造方法 |
PCT/JP2014/051354 WO2014119460A1 (ja) | 2013-01-31 | 2014-01-23 | 冷延鋼板およびその製造方法 |
CN201480006392.0A CN104955973B (zh) | 2013-01-31 | 2014-01-23 | 冷轧钢板及其制造方法 |
EP14746915.9A EP2952607A4 (en) | 2013-01-31 | 2014-01-23 | COLD-ROLLED STEEL PLATE AND MANUFACTURING METHOD THEREFOR |
US14/764,645 US10144994B2 (en) | 2013-01-31 | 2014-01-23 | Cold-rolled steel plate and method of manufacturing the same |
KR1020157020658A KR101709428B1 (ko) | 2013-01-31 | 2014-01-23 | 냉연 강판 및 그 제조 방법 |
US15/496,192 US10246764B2 (en) | 2013-01-31 | 2017-04-25 | Method of manufacturing a cold-rolled steel plate |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013016754 | 2013-01-31 | ||
JP2013016754A JP2013227656A (ja) | 2012-03-30 | 2013-01-31 | 冷延鋼板およびその製造方法 |
JP2013222745A JP5618432B2 (ja) | 2013-01-31 | 2013-10-25 | 冷延鋼板およびその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014167158A JP2014167158A (ja) | 2014-09-11 |
JP5618432B2 true JP5618432B2 (ja) | 2014-11-05 |
Family
ID=51262174
Family Applications (1)
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---|---|---|---|
JP2013222745A Active JP5618432B2 (ja) | 2013-01-31 | 2013-10-25 | 冷延鋼板およびその製造方法 |
Country Status (6)
Country | Link |
---|---|
US (2) | US10144994B2 (ja) |
EP (1) | EP2952607A4 (ja) |
JP (1) | JP5618432B2 (ja) |
KR (1) | KR101709428B1 (ja) |
CN (1) | CN104955973B (ja) |
WO (1) | WO2014119460A1 (ja) |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0475096B2 (en) * | 1990-08-17 | 2004-01-14 | JFE Steel Corporation | High strength steel sheet adapted for press forming and method of producing the same |
TW275649B (ja) | 1993-11-22 | 1996-05-11 | Nippon Steel Corp | |
CA2231760A1 (en) * | 1998-03-11 | 1999-09-11 | Nisshin Steel Co., Ltd. | Cold-rolled steel strip and hot-dip coated cold-rolled steel strip for use as building material and manufacturing method thereof |
JP3619400B2 (ja) | 1999-08-31 | 2005-02-09 | 新日本製鐵株式会社 | 厚手プレートディスククラッチ用鋼板およびその製造方法 |
EP1143022B1 (en) * | 1999-09-16 | 2010-04-14 | JFE Steel Corporation | Method for producing a thin steel plate having high strength |
JP3990549B2 (ja) | 2001-06-05 | 2007-10-17 | 新日本製鐵株式会社 | 形状凍結性に優れた高伸びフランジ性鋼板およびその製造方法 |
CA2387322C (en) | 2001-06-06 | 2008-09-30 | Kawasaki Steel Corporation | High-ductility steel sheet excellent in press formability and strain age hardenability, and method for manufacturing the same |
KR20040075971A (ko) * | 2002-02-07 | 2004-08-30 | 제이에프이 스틸 가부시키가이샤 | 고강도 강판 및 그 제조방법 |
JP3894429B2 (ja) | 2002-03-20 | 2007-03-22 | 日新製鋼株式会社 | 耐摩耗性及び打抜き加工性に優れたatプレート用冷延鋼板及び製造方法 |
JP4023733B2 (ja) | 2002-11-15 | 2007-12-19 | 日新製鋼株式会社 | 疲労特性等に優れた冷延鋼板及びその製造方法 |
EP1577412B2 (en) * | 2002-12-24 | 2014-11-12 | Nippon Steel & Sumitomo Metal Corporation | High strength steel sheet exhibiting good burring workability and excellent resistance to softening in heat-affected zone and method for production thereof |
JP4322610B2 (ja) * | 2003-09-19 | 2009-09-02 | 日新製鋼株式会社 | 衝撃特性に優れた冷延鋼板及びその製造方法 |
JP2005249050A (ja) | 2004-03-03 | 2005-09-15 | Nsk Ltd | 自動変速機における湿式多板クラッチ |
JP2005249051A (ja) | 2004-03-03 | 2005-09-15 | Nsk Ltd | 自動変速機における湿式多板クラッチ |
JP2005249106A (ja) | 2004-03-05 | 2005-09-15 | Nsk Ltd | 自動変速機における湿式多板クラッチ |
JP4696870B2 (ja) * | 2005-11-21 | 2011-06-08 | Jfeスチール株式会社 | 高強度鋼板及びその製造方法 |
JP4438074B2 (ja) | 2006-02-07 | 2010-03-24 | 日新製鋼株式会社 | オートマチックトランスミッション部材用冷延鋼板及びその製造方法 |
JP4858286B2 (ja) * | 2007-04-20 | 2012-01-18 | 住友金属工業株式会社 | フルハード冷延鋼板 |
JP5245777B2 (ja) | 2008-12-05 | 2013-07-24 | 新日鐵住金株式会社 | フルハード冷延鋼板 |
JP5522982B2 (ja) * | 2009-06-18 | 2014-06-18 | 日新製鋼株式会社 | Atセパレートプレート用鋼板 |
JP5725909B2 (ja) * | 2011-02-28 | 2015-05-27 | 日新製鋼株式会社 | 耐摩耗性に優れたクラッチプレート用鋼板およびその製造方法 |
JP2013227656A (ja) * | 2012-03-30 | 2013-11-07 | Nisshin Steel Co Ltd | 冷延鋼板およびその製造方法 |
-
2013
- 2013-10-25 JP JP2013222745A patent/JP5618432B2/ja active Active
-
2014
- 2014-01-23 KR KR1020157020658A patent/KR101709428B1/ko active IP Right Grant
- 2014-01-23 EP EP14746915.9A patent/EP2952607A4/en not_active Withdrawn
- 2014-01-23 WO PCT/JP2014/051354 patent/WO2014119460A1/ja active Application Filing
- 2014-01-23 CN CN201480006392.0A patent/CN104955973B/zh active Active
- 2014-01-23 US US14/764,645 patent/US10144994B2/en active Active
-
2017
- 2017-04-25 US US15/496,192 patent/US10246764B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20150368764A1 (en) | 2015-12-24 |
CN104955973B (zh) | 2017-06-13 |
US10144994B2 (en) | 2018-12-04 |
US20170226607A1 (en) | 2017-08-10 |
WO2014119460A1 (ja) | 2014-08-07 |
KR20150099868A (ko) | 2015-09-01 |
JP2014167158A (ja) | 2014-09-11 |
EP2952607A4 (en) | 2016-08-31 |
CN104955973A (zh) | 2015-09-30 |
KR101709428B1 (ko) | 2017-02-22 |
US10246764B2 (en) | 2019-04-02 |
EP2952607A1 (en) | 2015-12-09 |
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