FR2446323A1 - Procede de fabrication de toles d'acier a deux phases ayant une resistance a la traction elevee et un rapport limite elastique/resistance a la traction de faible valeur ainsi que d'excellentes proprietes de vieillissement apres travail, et produit ainsi obtenu - Google Patents

Procede de fabrication de toles d'acier a deux phases ayant une resistance a la traction elevee et un rapport limite elastique/resistance a la traction de faible valeur ainsi que d'excellentes proprietes de vieillissement apres travail, et produit ainsi obtenu

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Publication number
FR2446323A1
FR2446323A1 FR8000561A FR8000561A FR2446323A1 FR 2446323 A1 FR2446323 A1 FR 2446323A1 FR 8000561 A FR8000561 A FR 8000561A FR 8000561 A FR8000561 A FR 8000561A FR 2446323 A1 FR2446323 A1 FR 2446323A1
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FR
France
Prior art keywords
tensile strength
degrees
manufacture
work
product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8000561A
Other languages
English (en)
Other versions
FR2446323B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP122979A external-priority patent/JPS5594438A/ja
Priority claimed from JP10317579A external-priority patent/JPS5825732B2/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of FR2446323A1 publication Critical patent/FR2446323A1/fr
Application granted granted Critical
Publication of FR2446323B1 publication Critical patent/FR2446323B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Le procédé selon l'invention comprend le laminage à chaud d'un acier contenant entre 0,03 et 0,13 % de carbone, entre 0,8 et 1,7 % de manganèse, pas plus de 0,1 % d'aluminium, pas plus de 2,0 % de silicium et pas plus de 0,5 % de chrome, la température de finition étant comprise entre 750 degrés C et 890 degrés C, le refroidissement rapide de la bande jusqu'à une température ne dépassant pas 230 degrés C, et le bobinage de la bande à une température ne dépassant pas 230 degrés C, la variation de température entre le commencement et la fin du bobinage ne dépassant pas 100 degrés C. La teneur en silicium est limitée à 1 % ou moins dans les applications où l'aptitude à la peinture est importante et est limitée à 1 à 2 % dans les applications où la ductilité est importante. Le procédé permet d'améliorer les propriétés de vieillissement artificiel, amélioration qui est uniforme sur toute la longueur de la bande bobinée.
FR8000561A 1979-01-12 1980-01-11 Procede de fabrication de toles d'acier a deux phases ayant une resistance a la traction elevee et un rapport limite elastique/resistance a la traction de faible valeur ainsi que d'excellentes proprietes de vieillissement apres travail, et produit ainsi obtenu Granted FR2446323A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP122979A JPS5594438A (en) 1979-01-12 1979-01-12 Production of low yield ratio high strength composite structure steel plate of superior artificial age hardness after working
JP10317579A JPS5825732B2 (ja) 1979-08-15 1979-08-15 加工後人工時効硬化性のすぐれた低降伏比高強度複合組織鋼板の製造方法

Publications (2)

Publication Number Publication Date
FR2446323A1 true FR2446323A1 (fr) 1980-08-08
FR2446323B1 FR2446323B1 (fr) 1983-10-28

Family

ID=26334409

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8000561A Granted FR2446323A1 (fr) 1979-01-12 1980-01-11 Procede de fabrication de toles d'acier a deux phases ayant une resistance a la traction elevee et un rapport limite elastique/resistance a la traction de faible valeur ainsi que d'excellentes proprietes de vieillissement apres travail, et produit ainsi obtenu

Country Status (5)

Country Link
US (1) US4614551A (fr)
AU (1) AU527097B2 (fr)
DE (1) DE3000910A1 (fr)
FR (1) FR2446323A1 (fr)
GB (1) GB2046786B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495189A1 (fr) * 1980-10-17 1982-06-04 Kobe Steel Ltd Tole d'acier de haute resistance et son procede de fabrication
WO1997039152A1 (fr) * 1996-04-16 1997-10-23 Centre De Recherches Metallurgiques - Centrum Voor Research In De Metallurgie Procede pour la fabrication d'une bande laminee a chaud en acier a haute resistance
WO1998002589A1 (fr) * 1996-07-12 1998-01-22 Thyssen Stahl Ag Feuillard acier lamine a chaud et son procede de fabrication

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937328B2 (ja) * 1980-09-05 1984-09-08 新日本製鐵株式会社 耐サワ−特性のすぐれた鋼管用熱延鋼材の製造方法
GB2155950B (en) * 1984-03-01 1988-01-20 Nippon Steel Corp Erw-oil well pipe and process for producing same
DE3440752A1 (de) * 1984-11-08 1986-05-22 Thyssen Stahl AG, 4100 Duisburg Verfahren zur herstellung von warmband mit zweiphasen-gefuege
DE19710125A1 (de) * 1997-03-13 1998-09-17 Krupp Ag Hoesch Krupp Verfahren zur Herstellung eines Bandstahles mit hoher Festigkeit und guter Umformbarkeit
CN100357474C (zh) * 2006-02-17 2007-12-26 东北大学 一种抗拉强度600MPa级双相钢板及制造方法
CN100357475C (zh) * 2006-02-17 2007-12-26 东北大学 一种抗拉强度540MPa级双相钢板及制造方法
CN104911325A (zh) * 2008-07-11 2015-09-16 Skf公司 用于制造钢材部件、焊缝、焊接钢材部件和轴承部件的方法
CN105369135B (zh) * 2015-12-22 2017-11-17 武汉钢铁有限公司 一种450MPa级轿车用镀锌双相钢及生产方法
KR101940919B1 (ko) 2017-08-08 2019-01-22 주식회사 포스코 우수한 강도와 연신율을 갖는 열연강판 및 제조방법
CN109161797B (zh) * 2018-09-06 2020-11-03 邯郸钢铁集团有限责任公司 一种轻量化耐疲劳热轧双相车轮钢及其生产方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1473640A (fr) * 1966-03-31 1967-03-17 United States Steel Corp Traitement thermomécanique de l'acier
FR2239527A1 (en) * 1973-08-02 1975-02-28 Usinor Mild steel plate with high elastic limit - obtained by quenching the plate as it leaves the hot rolling train
JPS54107418A (en) * 1978-02-09 1979-08-23 Nippon Steel Corp Manufacture of low yield ratio hot rolled high tention steel plate for cold processing

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1084231A (fr) * 1900-01-01
US4113523A (en) * 1973-07-25 1978-09-12 Nippon Kokan Kabushiki Kaisha Process of making high tension cold-reduced al-killed steel excellent in accelerated aging property
JPS5536051B2 (fr) * 1974-12-05 1980-09-18
JPS5178730A (en) * 1974-12-30 1976-07-08 Nippon Steel Corp Fueraitosoto kyureihentaisoyorinaru fukugososhikikohanno seizohoho
JPS5179628A (ja) * 1974-12-31 1976-07-12 Nippon Steel Corp Kakoyokokyodosukohanno seizohoho
JPS5940889B2 (ja) * 1975-07-30 1984-10-03 住友金属工業株式会社 耐水素誘起割れ性のすぐれた鋼材の製造法
JPS52101627A (en) * 1976-02-23 1977-08-25 Sumitomo Metal Ind Ltd Non-tempered shape steel in low temp. toughness
US4033789A (en) * 1976-03-19 1977-07-05 Jones & Laughlin Steel Corporation Method of producing a high strength steel having uniform elongation
US4072543A (en) * 1977-01-24 1978-02-07 Amax Inc. Dual-phase hot-rolled steel strip
JPS5818410B2 (ja) * 1977-12-06 1983-04-13 新日本製鐵株式会社 高延性低降伏比熱延高張力薄鋼板の製造方法
US4222796A (en) * 1979-02-05 1980-09-16 Ford Motor Company High strength dual-phase steel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1473640A (fr) * 1966-03-31 1967-03-17 United States Steel Corp Traitement thermomécanique de l'acier
FR2239527A1 (en) * 1973-08-02 1975-02-28 Usinor Mild steel plate with high elastic limit - obtained by quenching the plate as it leaves the hot rolling train
JPS54107418A (en) * 1978-02-09 1979-08-23 Nippon Steel Corp Manufacture of low yield ratio hot rolled high tention steel plate for cold processing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, volume 3, no. 128, 24 octobre 1979, page 61C62, & JP-A-54-107418 (SHIN NIPPON SEITETSU K.K.) (23-08-1979) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495189A1 (fr) * 1980-10-17 1982-06-04 Kobe Steel Ltd Tole d'acier de haute resistance et son procede de fabrication
WO1997039152A1 (fr) * 1996-04-16 1997-10-23 Centre De Recherches Metallurgiques - Centrum Voor Research In De Metallurgie Procede pour la fabrication d'une bande laminee a chaud en acier a haute resistance
WO1998002589A1 (fr) * 1996-07-12 1998-01-22 Thyssen Stahl Ag Feuillard acier lamine a chaud et son procede de fabrication
US6284063B1 (en) 1996-07-12 2001-09-04 Thyssen Stahl Ag Hot-rolled steel strip and method of making it

Also Published As

Publication number Publication date
US4614551A (en) 1986-09-30
FR2446323B1 (fr) 1983-10-28
AU5440180A (en) 1980-07-17
DE3000910A1 (de) 1980-07-17
GB2046786B (en) 1983-05-25
GB2046786A (en) 1980-11-19
DE3000910C2 (fr) 1988-03-10
AU527097B2 (en) 1983-02-17

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