CZ308471B6 - Method of manufacturing steel parts from AHS steel by controlled local cooling with a medium, using the formation of a multiphase structure with intermittent cooling at the required temperature - Google Patents

Method of manufacturing steel parts from AHS steel by controlled local cooling with a medium, using the formation of a multiphase structure with intermittent cooling at the required temperature

Info

Publication number
CZ308471B6
CZ308471B6 CZ2019-542A CZ2019542A CZ308471B6 CZ 308471 B6 CZ308471 B6 CZ 308471B6 CZ 2019542 A CZ2019542 A CZ 2019542A CZ 308471 B6 CZ308471 B6 CZ 308471B6
Authority
CZ
Czechia
Prior art keywords
cooling
steel
medium
formation
ahs
Prior art date
Application number
CZ2019-542A
Other languages
Czech (cs)
Other versions
CZ2019542A3 (en
Inventor
Bohuslav Mašek
Ctibor Štádler
Vjačeslav Georgiev
Jiří Hammerbauer
Radek Holota
Martin Jára
Original Assignee
Západočeská Univerzita V Plzni
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 Západočeská Univerzita V Plzni filed Critical Západočeská Univerzita V Plzni
Priority to CZ2019-542A priority Critical patent/CZ308471B6/en
Priority to US16/802,048 priority patent/US20210054470A1/en
Publication of CZ2019542A3 publication Critical patent/CZ2019542A3/en
Publication of CZ308471B6 publication Critical patent/CZ308471B6/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
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray 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
    • C21D1/18—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
    • C21D1/18—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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow 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
    • C21D2221/00—Treating localised areas of an article
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/01—End parts (e.g. leading, trailing end)
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/10—Differential treatment of inner with respect to outer regions, e.g. core and periphery, respectively

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 Strip Materials And Filament Materials (AREA)

Abstract

A method of manufacturing steel parts from AHS steel by controlled local cooling with a medium, using the formation of a multiphase structure, consists in cooling the steel part with a flowing medium so that, depending on the amount of heat to be removed by the surface from the semi-finished product, from places where a larger amount of heat must be removed, cooling is performed at an increased intensity, wherein the areas of the steel part with a smaller amount of material are controllably cooled in such a way that the undercooling temperature in these areas is higher than the minimum cooling temperature required.
CZ2019-542A 2019-08-19 2019-08-19 Method of manufacturing steel parts from AHS steel by controlled local cooling with a medium, using the formation of a multiphase structure with intermittent cooling at the required temperature CZ308471B6 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CZ2019-542A CZ308471B6 (en) 2019-08-19 2019-08-19 Method of manufacturing steel parts from AHS steel by controlled local cooling with a medium, using the formation of a multiphase structure with intermittent cooling at the required temperature
US16/802,048 US20210054470A1 (en) 2019-08-19 2020-02-26 Method of production of parts of ahs steel by controlled local cooling by a cooling medium and by interrupted cooling at required temperature to create a multiphase microstructure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2019-542A CZ308471B6 (en) 2019-08-19 2019-08-19 Method of manufacturing steel parts from AHS steel by controlled local cooling with a medium, using the formation of a multiphase structure with intermittent cooling at the required temperature

Publications (2)

Publication Number Publication Date
CZ2019542A3 CZ2019542A3 (en) 2020-09-02
CZ308471B6 true CZ308471B6 (en) 2020-09-02

Family

ID=72289322

Family Applications (1)

Application Number Title Priority Date Filing Date
CZ2019-542A CZ308471B6 (en) 2019-08-19 2019-08-19 Method of manufacturing steel parts from AHS steel by controlled local cooling with a medium, using the formation of a multiphase structure with intermittent cooling at the required temperature

Country Status (2)

Country Link
US (1) US20210054470A1 (en)
CZ (1) CZ308471B6 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2357055A (en) * 1999-12-07 2001-06-13 Honda Motor Co Ltd Method for heat treating mould cast product
CZ299001B6 (en) * 2000-05-29 2008-04-02 Voestalpine Schienen Gmbh Process and device for hardening rails or rail heads
EP2551358A1 (en) * 2010-03-25 2013-01-30 IHI Corporation Heat treatment method
DE102013221397A1 (en) * 2013-10-22 2015-04-23 Robert Bosch Gmbh Thermal method and apparatus for locally increasing the surface strength of a thick-walled component
EP3050992A1 (en) * 2013-09-26 2016-08-03 Peking University Founder Group Co., Ltd Production process for non-quenched and tempered steel
DE102016201936A1 (en) * 2016-02-09 2017-08-10 Schwartz Gmbh Heat treatment process and heat treatment device
WO2018055098A1 (en) * 2016-09-22 2018-03-29 Tata Steel Ijmuiden B.V. A method of producing a hot-rolled high-strength steel with excellent stretch-flange formability and edge fatigue performance
CN109868352A (en) * 2019-04-02 2019-06-11 浙江明贺钢管有限公司 A kind of steel pipe water cooling Self-tempering and device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5598711A (en) * 1995-12-20 1997-02-04 Lockheed Martin Corporation Fluid deflection method using a skirt
EP2674504A1 (en) * 2012-06-11 2013-12-18 Siemens S.p.A. Method and system for thermal treatments of rails
AU2017263399B2 (en) * 2016-05-10 2022-03-24 United States Steel Corporation High strength steel products and annealing processes for making the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2357055A (en) * 1999-12-07 2001-06-13 Honda Motor Co Ltd Method for heat treating mould cast product
CZ299001B6 (en) * 2000-05-29 2008-04-02 Voestalpine Schienen Gmbh Process and device for hardening rails or rail heads
EP2551358A1 (en) * 2010-03-25 2013-01-30 IHI Corporation Heat treatment method
EP3050992A1 (en) * 2013-09-26 2016-08-03 Peking University Founder Group Co., Ltd Production process for non-quenched and tempered steel
DE102013221397A1 (en) * 2013-10-22 2015-04-23 Robert Bosch Gmbh Thermal method and apparatus for locally increasing the surface strength of a thick-walled component
DE102016201936A1 (en) * 2016-02-09 2017-08-10 Schwartz Gmbh Heat treatment process and heat treatment device
WO2018055098A1 (en) * 2016-09-22 2018-03-29 Tata Steel Ijmuiden B.V. A method of producing a hot-rolled high-strength steel with excellent stretch-flange formability and edge fatigue performance
CN109868352A (en) * 2019-04-02 2019-06-11 浙江明贺钢管有限公司 A kind of steel pipe water cooling Self-tempering and device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
(Research on Q&P hot stamping process integrated with fractional cooling strategy; Xianhong Han, Yuanyuan Li, SiSi Chen, Shulin Tan, Yanan Ding; Procedia Engineering Vol. 207, pp. 705-710, ISSN: 1877-7058) 01.06.2018 *

Also Published As

Publication number Publication date
CZ2019542A3 (en) 2020-09-02
US20210054470A1 (en) 2021-02-25

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Legal Events

Date Code Title Description
MM4A Patent lapsed due to non-payment of fee

Effective date: 20220819