BR112018009549A2 - método de resfriamento brusco por gás - Google Patents

método de resfriamento brusco por gás

Info

Publication number
BR112018009549A2
BR112018009549A2 BR112018009549A BR112018009549A BR112018009549A2 BR 112018009549 A2 BR112018009549 A2 BR 112018009549A2 BR 112018009549 A BR112018009549 A BR 112018009549A BR 112018009549 A BR112018009549 A BR 112018009549A BR 112018009549 A2 BR112018009549 A2 BR 112018009549A2
Authority
BR
Brazil
Prior art keywords
stage
workpiece
cooling
cooling method
gas
Prior art date
Application number
BR112018009549A
Other languages
English (en)
Inventor
Sugimoto Tsuyoshi
Okayama Yukichi
Original Assignee
Nissan Motor
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 Nissan Motor filed Critical Nissan Motor
Publication of BR112018009549A2 publication Critical patent/BR112018009549A2/pt

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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • 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
    • C21D1/613—Gases; Liquefied or solidified normally gaseous material
    • 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
    • C21D1/62—Quenching devices
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
    • 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
    • C21D1/22—Martempering
    • 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
    • C21D2211/008—Martensite

Landscapes

  • 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 Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

um método de resfriamento brusco por gás da presente invenção inclui um primeiro estágio (t1 a t2), em que uma peça de trabalho é submetida a um rápido resfriamento circulando forçosamente um gás de arrefecimento, um segundo estágio (t2 a t3), em que a circulação do gás refrigerante é interrompida e a pressão é reduzida dentro do forno para conduzir isolamento térmico, e um terceiro estágio (conforme t3), em que a peça de trabalho é resfriada novamente pelo gás refrigerante. no segundo estágio, a peça de trabalho é mantida em uma temperatura intermediária que é maior do que temperatura de início de transformação de martensita e, durante este, a temperatura em toda a peça de trabalho torna-se uniforme. portanto, é possível alcançar uma extinção uniforme e suprimir a distorção causada por diferença da velocidade de resfriamento.
BR112018009549A 2015-11-11 2015-11-11 método de resfriamento brusco por gás BR112018009549A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/081698 WO2017081760A1 (ja) 2015-11-11 2015-11-11 ガス焼入れ方法

Publications (1)

Publication Number Publication Date
BR112018009549A2 true BR112018009549A2 (pt) 2018-11-06

Family

ID=58694773

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018009549A BR112018009549A2 (pt) 2015-11-11 2015-11-11 método de resfriamento brusco por gás

Country Status (9)

Country Link
US (1) US20180327874A1 (pt)
EP (1) EP3375894A4 (pt)
JP (1) JP6497446B2 (pt)
KR (1) KR102124030B1 (pt)
CN (1) CN108350516A (pt)
BR (1) BR112018009549A2 (pt)
MX (1) MX2018005795A (pt)
RU (1) RU2690873C1 (pt)
WO (1) WO2017081760A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018181685A1 (ja) * 2017-03-31 2018-10-04 日新製鋼株式会社 水蒸気処理製品の製造方法および製造装置
CN111719114B (zh) * 2019-03-21 2023-04-28 上海汽车变速器有限公司 控制零件孔径收缩量的气体淬火方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03188213A (ja) * 1989-12-18 1991-08-16 Daido Steel Co Ltd 熱処理炉
JPH0741848A (ja) * 1993-07-27 1995-02-10 Demu Tec Kk 熱処理炉装置
NL1006539C2 (nl) * 1997-07-10 1999-01-12 Skf Ind Trading & Dev Werkwijze voor het uitvoeren van een warmtebehandeling op metalen ringen, en aldus verkregen lagerring.
RU2113509C1 (ru) * 1997-11-24 1998-06-20 Открытое акционерное общество "КАМАЗ" Способ термической обработки поковок шатуна из легированных сталей
JP2000129341A (ja) * 1998-10-20 2000-05-09 Toyota Motor Corp 低歪み焼入れ方法
JP2005060760A (ja) * 2003-08-11 2005-03-10 Nissan Motor Co Ltd ガス冷却による焼入れ方法
JP2005344183A (ja) * 2004-06-04 2005-12-15 Hirohisa Taniguchi 浸炭ガス焼入れ方法
DE102004051546A1 (de) * 2004-10-22 2006-05-04 Ald Vacuum Technologies Ag Verfahren zum verzugsarmen Härten von metallischen Bauteilen
UA10918U (uk) * 2004-12-29 2005-12-15 Дніпропетровський Національний Університет Залізничного Транспорту Імені Академіка В. Лазаряна Спосіб визначення напруження необертального переміщення дислокацій при навантаженні металів
KR100998841B1 (ko) * 2005-09-26 2010-12-06 아이신에이더블류 가부시키가이샤 강 부재, 그 열 처리 방법, 및 그 제조 방법
DE102005051420A1 (de) * 2005-10-27 2007-05-03 Robert Bosch Gmbh Verfahren und Anlage zur trockenen Umwandlung eines Material-Gefüges von Halbzeugen
JP2008121064A (ja) * 2006-11-10 2008-05-29 Daido Steel Co Ltd 低ひずみ焼入れ材の製造方法
CN101255491A (zh) * 2007-03-02 2008-09-03 上海市机械制造工艺研究所 大型压铸模微变形真空热处理工艺
JP5906005B2 (ja) * 2010-03-25 2016-04-20 株式会社Ihi 熱処理方法
JP5998438B2 (ja) * 2011-07-25 2016-09-28 日本精工株式会社 ワークの拘束焼入れ方法および拘束焼入れ装置
CN103103326A (zh) * 2011-11-15 2013-05-15 昆山鑫昌泰模具科技有限公司 热作模具钢真空等温处理工艺
EP2604710A1 (en) * 2011-12-13 2013-06-19 Linde Aktiengesellschaft Method for hardening of a metallic workpiece

Also Published As

Publication number Publication date
EP3375894A4 (en) 2018-09-26
US20180327874A1 (en) 2018-11-15
MX2018005795A (es) 2018-08-01
RU2690873C1 (ru) 2019-06-06
EP3375894A1 (en) 2018-09-19
KR102124030B1 (ko) 2020-06-17
WO2017081760A1 (ja) 2017-05-18
JP6497446B2 (ja) 2019-04-10
CN108350516A (zh) 2018-07-31
KR20180075647A (ko) 2018-07-04
JPWO2017081760A1 (ja) 2018-05-24

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B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

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