EP2762247A4 - Forging method for high-efficiency closing of porous defects in steel ingots or billets - Google Patents

Forging method for high-efficiency closing of porous defects in steel ingots or billets

Info

Publication number
EP2762247A4
EP2762247A4 EP12833320.0A EP12833320A EP2762247A4 EP 2762247 A4 EP2762247 A4 EP 2762247A4 EP 12833320 A EP12833320 A EP 12833320A EP 2762247 A4 EP2762247 A4 EP 2762247A4
Authority
EP
European Patent Office
Prior art keywords
billets
forging method
steel ingots
porous defects
efficiency closing
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
EP12833320.0A
Other languages
German (de)
French (fr)
Other versions
EP2762247A1 (en
Inventor
Bin Xu
Mingyue Sun
Dianzhong Li
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.)
Institute of Metal Research of CAS
Original Assignee
Institute of Metal Research of CAS
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 CN201110282883.6A external-priority patent/CN102500733B/en
Priority claimed from CN201210225394.1A external-priority patent/CN102756062B/en
Application filed by Institute of Metal Research of CAS filed Critical Institute of Metal Research of CAS
Publication of EP2762247A1 publication Critical patent/EP2762247A1/en
Publication of EP2762247A4 publication Critical patent/EP2762247A4/en
Ceased 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/022—Open die forging

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)
EP12833320.0A 2011-09-22 2012-09-21 Forging method for high-efficiency closing of porous defects in steel ingots or billets Ceased EP2762247A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201110282883.6A CN102500733B (en) 2011-09-22 2011-09-22 Forging method for efficiently healing internal hole-type defects of steel ingot
CN201210225394.1A CN102756062B (en) 2012-07-02 2012-07-02 A kind of forging method of high efficiency healing larger ratio of height to diameter blank inner void type defect
PCT/CN2012/081732 WO2013041043A1 (en) 2011-09-22 2012-09-21 Forging method for high-efficiency closing of porous defects in steel ingots or billets

Publications (2)

Publication Number Publication Date
EP2762247A1 EP2762247A1 (en) 2014-08-06
EP2762247A4 true EP2762247A4 (en) 2015-08-19

Family

ID=47913895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12833320.0A Ceased EP2762247A4 (en) 2011-09-22 2012-09-21 Forging method for high-efficiency closing of porous defects in steel ingots or billets

Country Status (2)

Country Link
EP (1) EP2762247A4 (en)
WO (1) WO2013041043A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2015677A3 (en) * 2015-09-30 2017-02-01 Vysoká Škola Báňská - Technická Univerzita Ostrava A method of producing forged rectangular boards made of hollow ingots
CN108405623B (en) * 2018-03-01 2019-09-03 西安建筑科技大学 A method of Mannesmann effect is studied by rotary compression
CN109604926B (en) * 2018-11-14 2021-10-15 中国原子能科学研究院 Steel blank construction interface healing method
CN111375714A (en) * 2018-12-27 2020-07-07 宝武特种冶金有限公司 Forging method for improving yield of electroslag ingot H13 large flat blank
CN110993040B (en) * 2019-11-28 2023-03-14 太原科技大学 Method for determining critical value of 30Cr2Ni4MoV steel converted from cast state to forged state
CN113843383B (en) * 2021-08-10 2024-07-12 中国中信有限公司 Composite forging near-net forming method for oversized anvil forging
CN113953422B (en) * 2021-10-21 2023-12-22 浙江大隆特材有限公司 22Cr12NiWMoV forged round steel for gas turbine and preparation method thereof
CN113953431B (en) * 2021-11-08 2024-03-29 内蒙古北方重工业集团有限公司 Upsetting method of free forging press for large alloy steel ingot with ultrahigh diameter ratio
CN114147157A (en) * 2021-12-20 2022-03-08 江阴市龙玉锻压有限公司 Turning forging process of large cake forging
CN114309389B (en) * 2022-01-19 2024-01-05 张家港广大特材股份有限公司 Forging method of long shaft bar

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404041A (en) * 1981-11-02 1983-09-13 Hitachi, Ltd. Method of producing elongated large-size forged article
US5039355A (en) * 1989-03-22 1991-08-13 Daumas Marie T Process for obtaining parts made of copper of very fine texture from a billet made by continuous casting
JP2004306135A (en) * 2003-03-25 2004-11-04 Jfe Steel Kk Hot forging method for cylindrical metal ingot
JP2007136487A (en) * 2005-11-16 2007-06-07 Sumitomo Metal Ind Ltd Method of hot forging
CN102441631A (en) * 2011-11-16 2012-05-09 东北特殊钢集团有限责任公司 Method for forging alloy steel ingot with smaller diameter and larger height-diameter ratio into wider flat billet
CN102500733A (en) * 2011-09-22 2012-06-20 中国科学院金属研究所 Forging method for efficiently healing internal hole-type defects of steel ingot

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001340938A (en) * 2000-05-30 2001-12-11 Daido Steel Co Ltd Forging method for discoidal forging
CN1217755C (en) * 2002-12-30 2005-09-07 太原理工大学 Flat hammering and drawing formation method for abrasive ball
CN100509205C (en) * 2006-08-29 2009-07-08 中信重工机械股份有限公司 Large-scale roller press squeeze roll forging technique
CN100509207C (en) * 2007-12-20 2009-07-08 上海交通大学 Forging method of cymbal anvil for heavy forging upsetting process
CN101920304B (en) * 2010-06-30 2012-05-23 华南理工大学 Method for forging large steel shaft forging

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404041A (en) * 1981-11-02 1983-09-13 Hitachi, Ltd. Method of producing elongated large-size forged article
US5039355A (en) * 1989-03-22 1991-08-13 Daumas Marie T Process for obtaining parts made of copper of very fine texture from a billet made by continuous casting
JP2004306135A (en) * 2003-03-25 2004-11-04 Jfe Steel Kk Hot forging method for cylindrical metal ingot
JP2007136487A (en) * 2005-11-16 2007-06-07 Sumitomo Metal Ind Ltd Method of hot forging
CN102500733A (en) * 2011-09-22 2012-06-20 中国科学院金属研究所 Forging method for efficiently healing internal hole-type defects of steel ingot
CN102441631A (en) * 2011-11-16 2012-05-09 东北特殊钢集团有限责任公司 Method for forging alloy steel ingot with smaller diameter and larger height-diameter ratio into wider flat billet

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
JIAN LAN ET AL: "A New Axial Upsetting Process for Large Ingots with Large Ratio of Height to Diameter", ADVANCED MATERIALS RESEARCH, vol. 189-193, 1 February 2011 (2011-02-01), pages 2684 - 2690, XP055199780, DOI: 10.4028/www.scientific.net/AMR.189-193.2684 *
KAKIMOTO H ET AL: "Development of forging process design to close internal voids", JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER, NL, vol. 210, no. 3, 1 February 2010 (2010-02-01), pages 415 - 422, XP026810752, ISSN: 0924-0136, [retrieved on 20091003] *
LEE Y S ET AL: "Internal void closure during the forging of large cast ingots using a simulation approach", JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER, NL, vol. 211, no. 6, 22 January 2011 (2011-01-22), pages 1136 - 1145, XP028367906, ISSN: 0924-0136, [retrieved on 20110201], DOI: 10.1016/J.JMATPROTEC.2011.01.017 *
ONO SHIN-ICHI; MINAMI KATSUYUKI; IWASAWA HIDEO; IWADATE TADAO; NAKATA SHIN-ICHI: "Void consolidation during open-die forging for ultralarge rotor shafts (2nd report, effectiveness of indenter flat-die cogging method)", TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS SERIES C, vol. 61, no. 588, 1 August 1995 (1995-08-01), pages 3437 - 3444, XP055199824, ISSN: 0387-5024 *
See also references of WO2013041043A1 *

Also Published As

Publication number Publication date
EP2762247A1 (en) 2014-08-06
WO2013041043A1 (en) 2013-03-28

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