WO2007001374A3 - Method of making high strength ferrous article, and article made thereby - Google Patents

Method of making high strength ferrous article, and article made thereby Download PDF

Info

Publication number
WO2007001374A3
WO2007001374A3 PCT/US2005/033336 US2005033336W WO2007001374A3 WO 2007001374 A3 WO2007001374 A3 WO 2007001374A3 US 2005033336 W US2005033336 W US 2005033336W WO 2007001374 A3 WO2007001374 A3 WO 2007001374A3
Authority
WO
WIPO (PCT)
Prior art keywords
alloy
workpiece
article
temperature
quenching medium
Prior art date
Application number
PCT/US2005/033336
Other languages
French (fr)
Other versions
WO2007001374A2 (en
Inventor
Tad Machrowicz
Brandon Landino
Original Assignee
Pullman Ind Inc
Tad Machrowicz
Brandon Landino
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 Pullman Ind Inc, Tad Machrowicz, Brandon Landino filed Critical Pullman Ind Inc
Priority to EP05858151A priority Critical patent/EP1797205A2/en
Priority to US11/575,343 priority patent/US20080053579A1/en
Priority to BRPI0515674-2A priority patent/BRPI0515674A/en
Priority to JP2007532551A priority patent/JP2008519154A/en
Publication of WO2007001374A2 publication Critical patent/WO2007001374A2/en
Publication of WO2007001374A3 publication Critical patent/WO2007001374A3/en

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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • C21D11/005—Process control or regulation for heat treatments for cooling
    • 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
    • C21D2211/002—Bainite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Control Of Heat Treatment Processes (AREA)

Abstract

A preselected metallurgical phase is formed in a body of a ferrous alloy by heating the workpiece to a temperature above an austenizing temperature of the alloy and thereafter contacting the workpiece with a quenching medium. Heat is input to the workpiece during at least a portion of the time it is in contact with the quenching medium. The quenching medium and/or the source of heat are regulated so that they work in combination to maintain the workpiece at a holding temperature which is above the temperature at which the martensite phase forms in the alloy. After maintaining the alloy at the holding temperature for a predetermined period of time, it is cooled to ambient. In particular implementations, the system operates to form a bainite phase in the alloy. Also disclosed are systems for implementing the method.
PCT/US2005/033336 2004-09-17 2005-09-19 Method of making high strength ferrous article, and article made thereby WO2007001374A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05858151A EP1797205A2 (en) 2004-09-17 2005-09-19 Method of making high strength ferrous article, and article made thereby
US11/575,343 US20080053579A1 (en) 2004-09-17 2005-09-19 Method of Making High Strength Ferrous Article, and Article Made Thereby
BRPI0515674-2A BRPI0515674A (en) 2004-09-17 2005-09-19 method for preparing a ferrous alloy body, article and apparatus for preparing a ferrous alloy body
JP2007532551A JP2008519154A (en) 2004-09-17 2005-09-19 Method for producing high-strength iron article and article produced thereby

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US61072004P 2004-09-17 2004-09-17
US60/610,720 2004-09-17
US11/227,354 2005-09-15
US11/227,354 US20060060268A1 (en) 2004-09-17 2005-09-15 Method of making high strength bainite article, and article made thereby

Publications (2)

Publication Number Publication Date
WO2007001374A2 WO2007001374A2 (en) 2007-01-04
WO2007001374A3 true WO2007001374A3 (en) 2008-08-21

Family

ID=36072659

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/033336 WO2007001374A2 (en) 2004-09-17 2005-09-19 Method of making high strength ferrous article, and article made thereby

Country Status (6)

Country Link
US (2) US20060060268A1 (en)
EP (1) EP1797205A2 (en)
JP (1) JP2008519154A (en)
KR (1) KR20070099539A (en)
BR (1) BRPI0515674A (en)
WO (1) WO2007001374A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7302821B1 (en) * 2004-12-27 2007-12-04 Emc Corporation Techniques for manufacturing a product using electric current during plastic deformation of material
US7506444B2 (en) * 2005-04-14 2009-03-24 Benteler Automotive Corporation Vehicle suspension control arm and method
JP5155646B2 (en) * 2007-12-13 2013-03-06 アイシン高丘株式会社 Hot press molding apparatus and hot press molding method
JP5493893B2 (en) * 2010-01-14 2014-05-14 新日鐵住金株式会社 Hot press forming method for thick steel plate
US9869000B2 (en) 2013-12-10 2018-01-16 Battelle Energy Alliance, Llc Methods of making bainitic steel materials

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6908963B2 (en) * 2001-10-09 2005-06-21 Nektar Therapeutics Al, Corporation Thioester polymer derivatives and method of modifying the N-terminus of a polypeptide therewith

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4343661A (en) * 1978-11-15 1982-08-10 Caterpillar Tractor Co. Method of making a low temperature bainite steel alloy gear
US4637844A (en) * 1985-07-08 1987-01-20 Tocco, Inc. Method for heat treating ferrous parts
US4715907A (en) * 1985-07-08 1987-12-29 Tocco, Inc. Method for heat treating ferrous parts
JPS6447812A (en) * 1987-08-18 1989-02-22 Daido Steel Co Ltd Vacuum heat treating furnace
JPH03253512A (en) * 1990-03-02 1991-11-12 Komatsu Ltd Austemper treatment by cooling high-temperature and high-pressure gas
JP2685965B2 (en) * 1990-06-18 1997-12-08 本田技研工業株式会社 Heat treatment method for spheroidal graphite cast iron material
JP3580938B2 (en) * 1996-03-05 2004-10-27 アイシン・エィ・ダブリュ株式会社 Heated bainite treatment method
DE29818245U1 (en) * 1998-10-13 1998-12-24 Benteler Ag, 33104 Paderborn Steel alloy for the production of bumpers for motor vehicles
US6632301B2 (en) * 2000-12-01 2003-10-14 Benton Graphics, Inc. Method and apparatus for bainite blades
JP2002241835A (en) * 2001-02-20 2002-08-28 Aisin Takaoka Ltd Method for partially strengthening work
EP1288322A1 (en) * 2001-08-29 2003-03-05 Sidmar N.V. An ultra high strength steel composition, the process of production of an ultra high strength steel product and the product obtained
US6586117B2 (en) * 2001-10-19 2003-07-01 Sumitomo Metal Industries, Ltd. Steel sheet having excellent workability and shape accuracy and a method for its manufacture

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6908963B2 (en) * 2001-10-09 2005-06-21 Nektar Therapeutics Al, Corporation Thioester polymer derivatives and method of modifying the N-terminus of a polypeptide therewith

Also Published As

Publication number Publication date
US20080053579A1 (en) 2008-03-06
BRPI0515674A (en) 2008-07-29
KR20070099539A (en) 2007-10-09
WO2007001374A2 (en) 2007-01-04
EP1797205A2 (en) 2007-06-20
JP2008519154A (en) 2008-06-05
US20060060268A1 (en) 2006-03-23

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