EP0043866A1 - Procédé pour produire un acier ayant une grande ténacité - Google Patents

Procédé pour produire un acier ayant une grande ténacité Download PDF

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Publication number
EP0043866A1
EP0043866A1 EP80104117A EP80104117A EP0043866A1 EP 0043866 A1 EP0043866 A1 EP 0043866A1 EP 80104117 A EP80104117 A EP 80104117A EP 80104117 A EP80104117 A EP 80104117A EP 0043866 A1 EP0043866 A1 EP 0043866A1
Authority
EP
European Patent Office
Prior art keywords
steel
temperature
amount
hardness distribution
thickness direction
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.)
Ceased
Application number
EP80104117A
Other languages
German (de)
English (en)
Inventor
Yasumitsu Onoe
Shinogu Tamukai
Masaki Umeno
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
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to EP80104117A priority Critical patent/EP0043866A1/fr
Publication of EP0043866A1 publication Critical patent/EP0043866A1/fr
Ceased legal-status Critical Current

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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
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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

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  • 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 Steel (AREA)
EP80104117A 1980-07-15 1980-07-15 Procédé pour produire un acier ayant une grande ténacité Ceased EP0043866A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP80104117A EP0043866A1 (fr) 1980-07-15 1980-07-15 Procédé pour produire un acier ayant une grande ténacité

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80104117A EP0043866A1 (fr) 1980-07-15 1980-07-15 Procédé pour produire un acier ayant une grande ténacité

Publications (1)

Publication Number Publication Date
EP0043866A1 true EP0043866A1 (fr) 1982-01-20

Family

ID=8186719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104117A Ceased EP0043866A1 (fr) 1980-07-15 1980-07-15 Procédé pour produire un acier ayant une grande ténacité

Country Status (1)

Country Link
EP (1) EP0043866A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536765A1 (fr) * 1982-11-29 1984-06-01 Nippon Kokan Kk Procede de fabrication de plaques d'acier ayant une resistance elevee a la traction
EP0165774A2 (fr) * 1984-06-19 1985-12-27 Nippon Steel Corporation Procédé pour la fabrication d'acier à haute résistance mécanique et à soudabilité
EP0168038A2 (fr) * 1984-07-10 1986-01-15 Nippon Steel Corporation Acier à haute ténacité et résistance à la rupture élevée
AU568403B2 (en) * 1983-09-13 1987-12-24 Sumitomo Metal Industries Ltd. Wear - resistant steel plate
CN114410895A (zh) * 2021-12-29 2022-04-29 舞阳钢铁有限责任公司 一种减少合金钢淬火变形的方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741879A (en) * 1980-08-25 1982-03-09 Shinagawa Refract Co Ltd Method for protecting refractories against slag coexisting with molten metal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741879A (en) * 1980-08-25 1982-03-09 Shinagawa Refract Co Ltd Method for protecting refractories against slag coexisting with molten metal

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 2, no. 152, 20 December 1978, page 3607C78 & JP-A-53 118 221 (NIPPON KOKAN KK) (16-10-1978) *
PATENTS ABSTRACTS OF JAPAN, vol. 2, no. 24, 16 February 1978, page 4152C77 & JP-A-52 123 921 (NIPPON KOKAN KK) (18-10-1977) *
PATENTS ABSTRACTS OF JAPAN, vol. 3, no. 157, 22 December 1979, page 154C68 & JP-A-54 135 614 (NIPPON KOKAN KK) (22-10-1979) *
PATENTS ABSTRACTS OF JAPAN, vol. 3, no. 46, 18 April 1979, page 79C43 & JP-A-54 021 917 (NIPPON KOKAN KK) (19-02-1979) *
PATENTS ABSTRACTS OF JAPAN, vol. 3, no. 79, 6 July 1979, page 164C51 & JP-A-54 057 418 (NIPPON KOKAN KK) (09-05-1979) *
PATENTS ABSTRACTS OF JAPAN, vol. 4, no. 38, 27 March 1980, page 33C4 & JP-A-55 011 104 (NIPPON STEEL CORP) (25-01-1980) *
STAHL UND EISEN, vol. 69, no. 9, April 1949, Dusseldorf, F. BOLLENRATH et al: "Auswirkung der Hartung aus der Walzhitze bei Vergutungsstahlen" pages 287 to 301 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536765A1 (fr) * 1982-11-29 1984-06-01 Nippon Kokan Kk Procede de fabrication de plaques d'acier ayant une resistance elevee a la traction
AU568403B2 (en) * 1983-09-13 1987-12-24 Sumitomo Metal Industries Ltd. Wear - resistant steel plate
EP0165774A2 (fr) * 1984-06-19 1985-12-27 Nippon Steel Corporation Procédé pour la fabrication d'acier à haute résistance mécanique et à soudabilité
EP0165774A3 (en) * 1984-06-19 1987-02-04 Nippon Steel Corporation Method for producing high-strength steel having improved weldability
EP0168038A2 (fr) * 1984-07-10 1986-01-15 Nippon Steel Corporation Acier à haute ténacité et résistance à la rupture élevée
EP0168038A3 (en) * 1984-07-10 1987-02-04 Nippon Steel Corporation High tensile-high toughness steel
US4790885A (en) * 1984-07-10 1988-12-13 Nippon Steel Corporation Method of producing high tensile-high toughness steel
CN114410895A (zh) * 2021-12-29 2022-04-29 舞阳钢铁有限责任公司 一种减少合金钢淬火变形的方法
CN114410895B (zh) * 2021-12-29 2024-01-23 舞阳钢铁有限责任公司 一种减少合金钢淬火变形的方法

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19820715

STAA Information on the status of an ep patent application or granted ep patent

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18R Application refused

Effective date: 19870807

RIN1 Information on inventor provided before grant (corrected)

Inventor name: TAMUKAI, SHINOGU

Inventor name: UMENO, MASAKI

Inventor name: ONOE, YASUMITSU