DE3871327D1 - Verfahren zur herstellung von gegenstaenden aus hochzaehem und hochfestem stahl. - Google Patents

Verfahren zur herstellung von gegenstaenden aus hochzaehem und hochfestem stahl.

Info

Publication number
DE3871327D1
DE3871327D1 DE8888117946T DE3871327T DE3871327D1 DE 3871327 D1 DE3871327 D1 DE 3871327D1 DE 8888117946 T DE8888117946 T DE 8888117946T DE 3871327 T DE3871327 T DE 3871327T DE 3871327 D1 DE3871327 D1 DE 3871327D1
Authority
DE
Germany
Prior art keywords
strength
producing objects
strength steel
steel
objects
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.)
Expired - Fee Related
Application number
DE8888117946T
Other languages
English (en)
Inventor
Kazuaki Matsumoto
Shin-Ichi Suzuki
Hisatoshi Tagawa
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=17503206&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3871327(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Application granted granted Critical
Publication of DE3871327D1 publication Critical patent/DE3871327D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • 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
    • 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
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
DE8888117946T 1987-10-29 1988-10-27 Verfahren zur herstellung von gegenstaenden aus hochzaehem und hochfestem stahl. Expired - Fee Related DE3871327D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62271667A JPH0696742B2 (ja) 1987-10-29 1987-10-29 高強度・高靭性非調質鋼の製造方法

Publications (1)

Publication Number Publication Date
DE3871327D1 true DE3871327D1 (de) 1992-06-25

Family

ID=17503206

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8888117947T Revoked DE3869320D1 (de) 1987-10-29 1988-10-27 Verfahren zur herstellung von gegenstaenden aus hochzaehem und hochfestem stahl.
DE8888117946T Expired - Fee Related DE3871327D1 (de) 1987-10-29 1988-10-27 Verfahren zur herstellung von gegenstaenden aus hochzaehem und hochfestem stahl.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8888117947T Revoked DE3869320D1 (de) 1987-10-29 1988-10-27 Verfahren zur herstellung von gegenstaenden aus hochzaehem und hochfestem stahl.

Country Status (4)

Country Link
US (2) US4936926A (de)
EP (2) EP0314145B1 (de)
JP (1) JPH0696742B2 (de)
DE (2) DE3869320D1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2505999B2 (ja) * 1991-07-09 1996-06-12 新日本製鐵株式会社 超高温熱間鍛造方法
JPH11140585A (ja) * 1997-09-05 1999-05-25 Timken Co:The 最適強靭性を有する熱処理鋼
US7005016B2 (en) * 2000-01-07 2006-02-28 Dofasco Inc. Hot rolled steel having improved formability
JP5620336B2 (ja) * 2011-05-26 2014-11-05 新日鐵住金株式会社 高疲労強度、高靭性機械構造用鋼部品およびその製造方法
KR20130081312A (ko) 2011-05-26 2013-07-16 신닛테츠스미킨 카부시키카이샤 기계 구조용 강 부품 및 그 제조 방법
CN103201400A (zh) 2011-05-26 2013-07-10 新日铁住金株式会社 机械结构用钢部件及其制造方法
FI20125063L (fi) * 2012-01-19 2013-07-20 Rautaruukki Oyj Menetelmä sääkestävän kuumavalssatun ultralujan rakenneterästuotteen valmistamiseksi ja sääkestävä kuumavalssattu ultraluja rakenneterästuote

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1116254A (en) * 1964-06-18 1968-06-06 Yawata Iron & Steel Co Weldable high tensile strength steel capable of giving weld heat-affected zone having high toughness and joint strength
SE382830B (sv) * 1974-12-23 1976-02-16 Stora Kopparbergs Bergslags Ab Forfarande for framstellning av ketting
IT1052444B (it) * 1975-11-28 1981-06-20 Centro Speriment Metallurg Processo per la produzione di acciaio strutturale meccanicamente anisotropo e acciaio cosi ottenuto
DE3007560A1 (de) * 1980-02-28 1981-09-03 Kawasaki Steel Corp., Kobe, Hyogo Verfahren zum herstellen von warmgewalztem blech mit niedriger streckspannung, hoher zugfestigkeit und ausgezeichnetem formaenderungsvermoegen
JPS5934211B2 (ja) * 1980-03-24 1984-08-21 住友金属工業株式会社 高延性を有する複合組識型高張力熱延鋼板の製造法
JPS601929B2 (ja) * 1980-10-30 1985-01-18 新日本製鐵株式会社 強靭鋼の製造法
JPS58171526A (ja) * 1982-03-31 1983-10-08 Nippon Steel Corp 極低温用鋼の製造法
JPS59100256A (ja) * 1982-11-30 1984-06-09 Nippon Kokan Kk <Nkk> 靭性の優れた熱間鍛造用非調質鋼
JPS59107063A (ja) * 1982-12-10 1984-06-21 Daido Steel Co Ltd ボルト用線材の製造方法
JPS60103161A (ja) * 1983-11-10 1985-06-07 Nippon Steel Corp 熱間鍛造用非調質棒鋼
JPS6119761A (ja) * 1984-07-04 1986-01-28 Nippon Steel Corp 高靭性熱鍛非調質棒鋼
GB2163454B (en) * 1984-07-04 1988-08-24 Nippon Steel Corp Process for manufacturing parts from non-heat refined steel having improved toughness
JPS61139646A (ja) * 1984-12-12 1986-06-26 Nippon Steel Corp 熱間鍛造用非調質棒鋼
JPS6133418A (ja) * 1984-07-20 1986-02-17 Tokico Ltd 移載装置
JPS6167717A (ja) * 1984-09-10 1986-04-07 Kobe Steel Ltd 溶接熱影響部の強度及び靭性にすぐれた高張力鋼板の製造方法
DE3571254D1 (en) * 1985-02-16 1989-08-03 Ovako Oy Method and steel alloy for producing high-strength hot forgings

Also Published As

Publication number Publication date
EP0314144A1 (de) 1989-05-03
DE3869320D1 (de) 1992-04-23
JPH01116032A (ja) 1989-05-09
US4952250A (en) 1990-08-28
EP0314145B1 (de) 1992-03-18
EP0314145A1 (de) 1989-05-03
EP0314144B1 (de) 1992-05-20
JPH0696742B2 (ja) 1994-11-30
US4936926A (en) 1990-06-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee