EA200800969A1 - METHODS OF HEAT TREATMENT OF THICK-WALL QUARKS - Google Patents

METHODS OF HEAT TREATMENT OF THICK-WALL QUARKS

Info

Publication number
EA200800969A1
EA200800969A1 EA200800969A EA200800969A EA200800969A1 EA 200800969 A1 EA200800969 A1 EA 200800969A1 EA 200800969 A EA200800969 A EA 200800969A EA 200800969 A EA200800969 A EA 200800969A EA 200800969 A1 EA200800969 A1 EA 200800969A1
Authority
EA
Eurasian Patent Office
Prior art keywords
alloy steel
thick
heat treatment
low
approximately
Prior art date
Application number
EA200800969A
Other languages
Russian (ru)
Other versions
EA012791B1 (en
Inventor
Филипп А. Хафф
Original Assignee
ХАЙДРИЛ ЭлЭлСи
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 ХАЙДРИЛ ЭлЭлСи filed Critical ХАЙДРИЛ ЭлЭлСи
Publication of EA200800969A1 publication Critical patent/EA200800969A1/en
Publication of EA012791B1 publication Critical patent/EA012791B1/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
    • 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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten

Abstract

Предложен способ термообработки толстостенных поковок, включающий в себя нагрев низколегированной стали до температуры аустенизации, при этом низколегированная сталь содержит углерод в количестве приблизительно 0,05-0,2 мас.%, марганец в количестве приблизительно 0,3-0,8 мас.% и никель в количестве приблизительно 0,25-1,0 мас.%. Способ дополнительно включает в себя закалку низколегированной стали в закалочной среде и последующий отпуск низколегированной стали в течение менее приблизительно тридцати минут на дюйм толщины критического сечения плюс приблизительно 2 ч.A method is proposed for heat treatment of thick-walled forgings, which includes heating low-alloy steel to an austenitizing temperature, wherein the low-alloy steel contains carbon in an amount of approximately 0.05-0.2 wt.%, manganese in an amount of approximately 0.3-0.8 wt.% and nickel in an amount of approximately 0.25-1.0 wt.%. The method further includes quenching the low alloy steel in a quenching environment and then tempering the low alloy steel for less than about thirty minutes per inch of critical section thickness plus about 2 hours.

EA200800969A 2005-09-29 2006-09-29 Methods for heat treating thick-walled forgings EA012791B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/239,035 US20070068607A1 (en) 2005-09-29 2005-09-29 Method for heat treating thick-walled forgings
PCT/US2006/038545 WO2007038789A1 (en) 2005-09-29 2006-09-29 Methods for heat treating thick-walled forgings

Publications (2)

Publication Number Publication Date
EA200800969A1 true EA200800969A1 (en) 2008-08-29
EA012791B1 EA012791B1 (en) 2009-12-30

Family

ID=37892420

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200800969A EA012791B1 (en) 2005-09-29 2006-09-29 Methods for heat treating thick-walled forgings

Country Status (10)

Country Link
US (1) US20070068607A1 (en)
EP (1) EP1929054A4 (en)
KR (1) KR20080063371A (en)
CN (1) CN101300365A (en)
AU (1) AU2006294442A1 (en)
BR (1) BRPI0616689A2 (en)
CA (1) CA2623995A1 (en)
EA (1) EA012791B1 (en)
NO (1) NO20081850L (en)
WO (1) WO2007038789A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5201625B2 (en) * 2008-05-13 2013-06-05 株式会社日本製鋼所 High strength low alloy steel with excellent high pressure hydrogen environment embrittlement resistance and method for producing the same
US20090321144A1 (en) * 2008-06-30 2009-12-31 Wyble Kevin J Protecting an element from excessive surface wear by localized hardening
WO2013050936A1 (en) * 2011-10-07 2013-04-11 Babasaheb Neelkanth Kalyani A process to improve fatigue strength of micro alloy steels, forged parts made from the process and an apparatus to execute the process
WO2016079565A1 (en) * 2014-11-18 2016-05-26 Arcelormittal Method for manufacturing a high strength steel product and steel product thereby obtained
CN105483561A (en) * 2015-12-16 2016-04-13 常熟市虹桥铸钢有限公司 Annular preventer shell
CN107805756A (en) * 2016-09-09 2018-03-16 中国石化工程建设有限公司 A kind of cryogenic steel, low-temperature pressure container and steel for pipe pipe and preparation method thereof
CN109811262B (en) * 2019-02-26 2021-03-12 中信重工机械股份有限公司 Manufacturing process of 2.25Cr1Mo0.25V steel heavy wall thickness hydrogenated forging
CN115323136B (en) * 2022-08-19 2024-01-19 无锡派克新材料科技股份有限公司 Manufacturing method of 15-bit 3H M phi A shell forging for nuclear power component
CN115354138B (en) * 2022-08-19 2023-11-21 河南中原特钢装备制造有限公司 Heat treatment process for improving hardness uniformity of whole cross section of 20CrNiMo calender roll

Family Cites Families (14)

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GB1161844A (en) * 1967-06-29 1969-08-20 English Steel Corp Ltd Improved Heat-Resistant Alloy Steel for Large Forgings.
SE435527B (en) * 1973-11-06 1984-10-01 Plannja Ab PROCEDURE FOR PREPARING A PART OF Hardened Steel
DE3332026C1 (en) * 1983-09-06 1984-11-22 Berchem & Schaberg Gmbh, 4650 Gelsenkirchen Use of a steel alloy as material for drop-forged flails of soil-working machines
CA1259458A (en) * 1984-02-08 1989-09-19 Edward L. Raymond Wellhead structure and method of producing same
US4750950A (en) * 1986-11-19 1988-06-14 Inco Alloys International, Inc. Heat treated alloy
JP2813800B2 (en) * 1988-09-20 1998-10-22 株式会社神戸製鋼所 Warm forging steel for machine structures
US5180450A (en) * 1990-06-05 1993-01-19 Ferrous Wheel Group Inc. High performance high strength low alloy wrought steel
JPH07316721A (en) * 1994-03-30 1995-12-05 Toshiba Corp High and low pressure integrated type turbine rotor and its production
US5545269A (en) * 1994-12-06 1996-08-13 Exxon Research And Engineering Company Method for producing ultra high strength, secondary hardening steels with superior toughness and weldability
JPH1088274A (en) * 1996-09-10 1998-04-07 Japan Casting & Forging Corp High strength heat resistant steel and its production
JPH10265841A (en) * 1997-03-25 1998-10-06 Aichi Steel Works Ltd Production of high strength cold forging parts
JP3893756B2 (en) * 1998-07-08 2007-03-14 住友金属工業株式会社 Hot forging steel
JP3483493B2 (en) * 1999-03-19 2004-01-06 日本鋳鍛鋼株式会社 Cast steel for pressure vessel and method of manufacturing pressure vessel using the same
JP4435953B2 (en) * 1999-12-24 2010-03-24 新日本製鐵株式会社 Bar wire for cold forging and its manufacturing method

Also Published As

Publication number Publication date
WO2007038789A1 (en) 2007-04-05
CN101300365A (en) 2008-11-05
CA2623995A1 (en) 2007-04-05
KR20080063371A (en) 2008-07-03
AU2006294442A1 (en) 2007-04-05
NO20081850L (en) 2008-06-17
US20070068607A1 (en) 2007-03-29
EA012791B1 (en) 2009-12-30
EP1929054A1 (en) 2008-06-11
BRPI0616689A2 (en) 2011-06-28
EP1929054A4 (en) 2010-03-31

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG MD TJ TM RU