JP5581205B2 - 疲労寿命が優れている高炭素鋼板およびその製造方法 - Google Patents
疲労寿命が優れている高炭素鋼板およびその製造方法 Download PDFInfo
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- JP5581205B2 JP5581205B2 JP2010510190A JP2010510190A JP5581205B2 JP 5581205 B2 JP5581205 B2 JP 5581205B2 JP 2010510190 A JP2010510190 A JP 2010510190A JP 2010510190 A JP2010510190 A JP 2010510190A JP 5581205 B2 JP5581205 B2 JP 5581205B2
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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
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/44—Methods of heating in heat-treatment baths
- C21D1/46—Salt baths
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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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
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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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0268—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment between cold rolling steps
-
- 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
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
-
- 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
- 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
- C21D2211/003—Cementite
-
- 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
-
- 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
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- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Description
本発明の実施例による高炭素鋼板は、質量%で炭素(C):約0.75〜約0.95%、ケイ素(Si):約1.8%以下、マンガン(Mn):約0.1〜約1.5%、クロム(Cr):約0.1〜約1.0%、リン(P):約0.02%以下、硫黄(S):約0.02%以下を含み、残部のFeおよびその他の不可避な不純物からなる。
先ず、前述の組成を有する球状化熱処理された高強度スプリング用高炭素鋼板を厚さ約1.3〜約1.6mmの板状コイルに圧延する。その後、焼入れ熱処理温度を約750〜約1200℃に設定して約2分間加熱した後、それぞれ約300〜約650℃に維持されたはんだ槽にパテンティング(またはオーステンパリング)熱処理を実施する。その後、全て約0.23mmの厚さの板状コイルに圧延する。これによって最終的な厚さは同一でありながら異なる冷間圧下率を有する鋼材を製造することができる。約0.23mmに圧延されたコイルはスプリングの製造に必要な約8mmの幅にスリッティング(Slitting)される。その後、同一なバリ(Burr)除去工程、スプリング成型、ワインディング、および歪み時効(strain aging)工程を経てスプリングを製造する。
Claims (6)
- 質量%で炭素(C):0.75〜0.95%、ケイ素(Si):1.8%以下、マンガン(Mn):0.1〜1.5%、クロム(Cr):0.1〜1.0%、リン(P):0.02%以下、硫黄(S):0.02%以下を含み、残部のFeおよびその他の不可避な不純物からなる鋼材を製造する段階と、
前記鋼材を熱間圧延、冷間圧延、および焼鈍工程により球状化セメンタイトおよび初期フェライトの組織を有する鋼板を製造する段階と、
前記鋼板を加熱した後、加熱された鋼板をパテンティング熱処理するが、この時、はんだ槽の温度を500℃以上530℃以下に維持しながら60秒以上パテンティング熱処理する段階と、
前記パテンティング熱処理後に冷却段階および85%以上に冷間圧延する段階と
を含み、
前記パテンティング熱処理前に前記鋼板を加熱する時の温度範囲は、800℃以上1100℃以下であり、
層状炭化物間の層間間隔が0.5μm以下であり、長軸および短軸の比率が10:1以上であるラメラ構造を有する微細パーライト相を体積分率で90%以上含む、
高炭素鋼板の製造方法。 - 前記鋼材を製造する段階において、質量%で0.05〜0.25%のV、Nb、Mo、Ti、W、およびCuからなる群より選択された一つ以上の元素を更に含むように鋼材を製造する、請求項1に記載の高炭素鋼板の製造方法。
- 前記鋼材を製造する段階において、30〜120ppmの窒素を更に含むように鋼材を製造する、請求項2に記載の高炭素鋼板の製造方法。
- 質量%で炭素(C):0.75〜0.95%、ケイ素(Si):1.8%以下、マンガン(Mn):0.1〜1.5%、クロム(Cr):0.1〜1.0%、リン(P):0.02%以下、硫黄(S):0.02%以下を含み、残部のFeおよびその他の不可避な不純物からなる鋼材を製造する段階と、
前記鋼材を熱間圧延、冷間圧延、および焼鈍工程により球状化セメンタイトおよび初期フェライトの組織を有する鋼板を製造する段階と、
前記鋼板を加熱した後、加熱された鋼板をパテンティング熱処理するが、この時、はんだ槽の温度を530℃以上570℃以下に維持しながら20秒以上パテンティング熱処理する段階と、
前記パテンティング熱処理後に冷却段階および85%以上に冷間圧延する段階と
を含み、
前記パテンティング熱処理前に前記鋼板を加熱する時の温度範囲は、800℃以上1100℃以下であり、
層状炭化物間の層間間隔が0.5μm以下であり、長軸および短軸の比率が10:1以上であるラメラ構造を有する微細パーライト相を体積分率で90%以上含む、高炭素鋼板の製造方法。 - 前記鋼材を製造する段階において、質量%で0.05〜0.25%のV、Nb、Mo、Ti、W、およびCuからなる群より選択された一つ以上の元素を更に含むように鋼材を製造する、請求項4に記載の高炭素鋼板の製造方法。
- 前記鋼材を製造する段階において、30〜120ppmの窒素を更に含むように鋼材を製造する、請求項5に記載の高炭素鋼板の製造方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070055199A KR101445868B1 (ko) | 2007-06-05 | 2007-06-05 | 피로수명이 우수한 고탄소 강판 및 그 제조 방법 |
| KR10-2007-0055199 | 2007-06-05 | ||
| PCT/KR2007/006863 WO2008150056A1 (en) | 2007-06-05 | 2007-12-27 | High carbon steel sheet superior in fatiugue lifeand manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010528189A JP2010528189A (ja) | 2010-08-19 |
| JP5581205B2 true JP5581205B2 (ja) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010510190A Active JP5581205B2 (ja) | 2007-06-05 | 2007-12-27 | 疲労寿命が優れている高炭素鋼板およびその製造方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100218859A1 (ja) |
| JP (1) | JP5581205B2 (ja) |
| KR (1) | KR101445868B1 (ja) |
| CN (1) | CN101680069B (ja) |
| WO (1) | WO2008150056A1 (ja) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5630003B2 (ja) * | 2008-11-17 | 2014-11-26 | Jfeスチール株式会社 | 引張強さが1500MPa以上の高強度鋼板およびその製造方法 |
| JP5630002B2 (ja) * | 2008-11-17 | 2014-11-26 | Jfeスチール株式会社 | 引張強さが1500MPa以上の高強度鋼板およびその製造方法 |
| DE102009010442A1 (de) * | 2009-02-26 | 2010-09-02 | C.D. Wälzholz GmbH | Mikrolegierter Kohlenstoffstahl als texturgewalzter Bandstahl, insbesondere für Federelemente |
| EP2280199B1 (de) * | 2009-07-31 | 2016-07-13 | ElringKlinger AG | Zylinderkopfdichtung, sowie Verfahren zur Herstellung einer Zylinderkopfdichtungsfunktionslage |
| JP5630004B2 (ja) * | 2009-11-04 | 2014-11-26 | Jfeスチール株式会社 | 引張強さが1500MPa以上の高強度鋼板およびその製造方法 |
| JP5630005B2 (ja) * | 2009-11-04 | 2014-11-26 | Jfeスチール株式会社 | 引張強さが1500MPa以上の高強度鋼板およびその製造方法 |
| JP5630006B2 (ja) * | 2009-11-04 | 2014-11-26 | Jfeスチール株式会社 | 引張強さが1500MPa以上の高強度鋼板およびその製造方法ならびに冷間圧延用素材 |
| KR101356773B1 (ko) | 2010-09-16 | 2014-01-28 | 주식회사 포스코 | 고탄소 열연강판, 냉연강판 및 그 제조방법 |
| KR101304670B1 (ko) | 2011-08-01 | 2013-09-06 | 주식회사 포스코 | 구상화 열처리 생략형 강재 및 그 제조방법 |
| KR101353552B1 (ko) | 2011-12-15 | 2014-01-23 | 주식회사 포스코 | 고탄소 열연강판, 냉연강판 및 그 제조방법 |
| KR101443452B1 (ko) * | 2012-09-27 | 2014-09-19 | 현대제철 주식회사 | 강판 제조 방법 |
| KR101492800B1 (ko) | 2014-10-13 | 2015-02-12 | 장인금속(주) | 탄소강의 구상화소둔 열처리 방법 및 블레이드 탄소강제품 |
| JP6189819B2 (ja) * | 2014-11-21 | 2017-08-30 | 株式会社神戸製鋼所 | 高強度高延性鋼板 |
| CN106399647A (zh) * | 2016-09-26 | 2017-02-15 | 南京钢铁股份有限公司 | 一种实现高强度高疲劳弹簧窄带钢索氏体化冷轧工艺 |
| KR101849760B1 (ko) * | 2016-09-28 | 2018-04-17 | 주식회사 포스코 | 고탄소 강판 및 이의 제조방법 |
| KR102043511B1 (ko) | 2017-12-12 | 2019-11-12 | 주식회사 포스코 | 열처리 경화형 고탄소 강판 및 그 제조방법 |
| KR102327929B1 (ko) * | 2019-12-20 | 2021-11-17 | 주식회사 포스코 | 피로수명이 우수한 판 스프링용 강판 및 그 제조방법 |
| CN115341076B (zh) * | 2022-07-15 | 2023-08-18 | 大冶特殊钢有限公司 | 一种弹簧钢及其球化退火方法 |
| KR20240024678A (ko) | 2022-08-17 | 2024-02-26 | 오영남 | Esg 실현을 위한 학교 운동장 혁신시스템 |
| JP7801649B1 (ja) | 2024-05-10 | 2026-01-19 | 日本製鉄株式会社 | 高炭素冷間圧延鋼板、高炭素熱間圧延鋼板および渦巻ばね |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61261430A (ja) * | 1985-05-14 | 1986-11-19 | Shinko Kosen Kogyo Kk | 高強度高靭性鋼線の製造方法 |
| JPH04124216A (ja) * | 1990-09-12 | 1992-04-24 | Sumitomo Metal Ind Ltd | 成形性の良好な高炭素薄鋼板の製造方法 |
| JP3176226B2 (ja) * | 1994-08-11 | 2001-06-11 | 株式会社神戸製鋼所 | 高強度高靭性溶融めっき鋼線の製造方法 |
| JPH08302428A (ja) * | 1995-05-10 | 1996-11-19 | Nisshin Steel Co Ltd | ばね用高強度鋼帯の製造方法 |
| JP3036416B2 (ja) * | 1995-11-15 | 2000-04-24 | 株式会社神戸製鋼所 | 高疲労強度を有する熱間鍛造非調質鋼および鍛造品の製造方法 |
| JP3859331B2 (ja) * | 1997-11-06 | 2006-12-20 | 住友電工スチールワイヤー株式会社 | 高疲労強度鋼線およびばねとそれらの製造方法 |
| JP4425368B2 (ja) * | 1999-03-19 | 2010-03-03 | 日新製鋼株式会社 | 局部延性に優れた高炭素鋼板の製造法 |
| CN1159470C (zh) * | 2001-09-30 | 2004-07-28 | 宝山钢铁股份有限公司 | 一种具有超塑性的超高碳钢基材及其获得方法 |
| DE602004026995D1 (de) * | 2003-01-27 | 2010-06-17 | Nippon Steel Corp | Walzdraht aus hochfestem hochzähem kohlenstoffreichem stahl und herstellungsverfahren dafür |
| JP4375615B2 (ja) * | 2004-06-15 | 2009-12-02 | 日新製鋼株式会社 | ドア部材用鋼板 |
| CN1840729A (zh) * | 2005-03-30 | 2006-10-04 | 株式会社神户制钢所 | 可拉丝性优良的高碳钢丝线材及其制造方法 |
-
2007
- 2007-06-05 KR KR1020070055199A patent/KR101445868B1/ko active Active
- 2007-12-27 JP JP2010510190A patent/JP5581205B2/ja active Active
- 2007-12-27 US US12/600,161 patent/US20100218859A1/en not_active Abandoned
- 2007-12-27 WO PCT/KR2007/006863 patent/WO2008150056A1/en not_active Ceased
- 2007-12-27 CN CN2007800531456A patent/CN101680069B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010528189A (ja) | 2010-08-19 |
| KR20080107196A (ko) | 2008-12-10 |
| CN101680069A (zh) | 2010-03-24 |
| CN101680069B (zh) | 2012-07-04 |
| KR101445868B1 (ko) | 2014-10-01 |
| WO2008150056A1 (en) | 2008-12-11 |
| US20100218859A1 (en) | 2010-09-02 |
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