WO2022218829A9 - Method for the heat treatment of metal workpieces - Google Patents

Method for the heat treatment of metal workpieces Download PDF

Info

Publication number
WO2022218829A9
WO2022218829A9 PCT/EP2022/059352 EP2022059352W WO2022218829A9 WO 2022218829 A9 WO2022218829 A9 WO 2022218829A9 EP 2022059352 W EP2022059352 W EP 2022059352W WO 2022218829 A9 WO2022218829 A9 WO 2022218829A9
Authority
WO
WIPO (PCT)
Prior art keywords
workpieces
heating
heat treatment
continuous furnace
metal workpieces
Prior art date
Application number
PCT/EP2022/059352
Other languages
German (de)
French (fr)
Other versions
WO2022218829A1 (en
Inventor
Steffen Frank
Heike Liebe
Original Assignee
Aerospace Transmission Technologies GmbH
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 Aerospace Transmission Technologies GmbH filed Critical Aerospace Transmission Technologies GmbH
Priority to EP22721361.8A priority Critical patent/EP4305368A1/en
Publication of WO2022218829A1 publication Critical patent/WO2022218829A1/en
Publication of WO2022218829A9 publication Critical patent/WO2022218829A9/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/028—Multi-chamber type furnaces
    • 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
    • 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
    • C21D1/673—Quenching devices for die 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent 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
    • C21D11/00—Process control or regulation for heat treatments
    • 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
    • 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
    • C21D9/0062—Heat-treating apparatus with a cooling or quenching zone

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Articles (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

The invention relates to a method for the heat treatment of metal workpieces (WB), in particular transmission components, wherein preferably carburized metal workpieces (WB) are introduced into a means (TK) for heating workpieces and are heated therein, wherein the means (TK) for heating workpieces is in the form of a continuous furnace and wherein workpieces (WB) are introduced into the continuous furnace through a first opening apparatus (1) and into a heating portion (TKH) of the continuous furnace for heating, wherein workpieces (WB), after being heated, are transferred to an outlet portion (TKO) which can be sealed off from the heating portion (TKH) and are kept warm therein at a defined temperature, wherein workpieces (WB), after being kept warm, are discharged from the continuous furnace through a second opening apparatus (2) which is different from the first opening apparatus (1), wherein workpieces (WB), after being discharged, are introduced into a means (PQ) for hardening.
PCT/EP2022/059352 2021-04-16 2022-04-08 Method for the heat treatment of metal workpieces WO2022218829A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22721361.8A EP4305368A1 (en) 2021-04-16 2022-04-08 Method for the heat treatment of metal workpieces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021109671.5 2021-04-16
DE102021109671 2021-04-16

Publications (2)

Publication Number Publication Date
WO2022218829A1 WO2022218829A1 (en) 2022-10-20
WO2022218829A9 true WO2022218829A9 (en) 2022-12-08

Family

ID=81580563

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/059352 WO2022218829A1 (en) 2021-04-16 2022-04-08 Method for the heat treatment of metal workpieces

Country Status (3)

Country Link
EP (1) EP4305368A1 (en)
DE (1) DE102022108510A1 (en)
WO (1) WO2022218829A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023109261A1 (en) 2022-04-14 2023-10-19 Aerospace Transmission Technologies GmbH Device and method for producing heat-treated workpieces, in particular helical gears, and control device therefor
DE102023109259A1 (en) 2022-04-14 2023-10-19 Aerospace Transmission Technologies GmbH Process for the production of heat-treated workpieces, in particular helical gears, and a hardening press for this purpose
CN117821730A (en) * 2024-01-05 2024-04-05 宁波久生模具科技有限公司 Die heat treatment method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4330111B2 (en) * 2002-11-29 2009-09-16 Ｄｏｗａホールディングス株式会社 Heat treatment method and heat treatment furnace
JP4878564B2 (en) * 2007-02-13 2012-02-15 光洋サーモシステム株式会社 Continuous carburizing furnace
KR100796767B1 (en) * 2007-02-28 2008-01-22 최병길 A heat treatment equipment
DE102009050533A1 (en) * 2009-10-23 2011-04-28 Thyssenkrupp Sofedit S.A.S Method and hot forming plant for producing a hardened, hot formed workpiece
DE102011114764B4 (en) * 2011-10-01 2016-04-21 Volkswagen Aktiengesellschaft Process for the production of form-hardened components and continuous furnace for heating a board provided for molding
DE102012019653A1 (en) * 2012-10-08 2014-04-10 Ipsen International Gmbh Gas-tight protective gas-blast industrial furnace, in particular chamber furnace, pusher furnace, rotary hearth furnace or ring hearth furnace
DE102016201025A1 (en) * 2016-01-25 2017-07-27 Schwartz Gmbh Heat treatment process and heat treatment device

Also Published As

Publication number Publication date
DE102022108510A1 (en) 2022-10-20
WO2022218829A1 (en) 2022-10-20
EP4305368A1 (en) 2024-01-17

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