BR9507081A - Process and device to influence variations in dimension and shape when tempering workpieces - Google Patents

Process and device to influence variations in dimension and shape when tempering workpieces

Info

Publication number
BR9507081A
BR9507081A BR9507081A BR9507081A BR9507081A BR 9507081 A BR9507081 A BR 9507081A BR 9507081 A BR9507081 A BR 9507081A BR 9507081 A BR9507081 A BR 9507081A BR 9507081 A BR9507081 A BR 9507081A
Authority
BR
Brazil
Prior art keywords
workpieces
mandrel
shape
hardening
dimension
Prior art date
Application number
BR9507081A
Other languages
Portuguese (pt)
Inventor
Frank Zolzarek
Original Assignee
Zahnradfabrik Friedrichshafen
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 Zahnradfabrik Friedrichshafen filed Critical Zahnradfabrik Friedrichshafen
Publication of BR9507081A publication Critical patent/BR9507081A/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
    • C21D1/673—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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0025—Supports; Baskets; Containers; Covers
    • 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
    • C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like

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 Treatment Of Articles (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Forging (AREA)

Abstract

A process and device are disclosed for influencing the changes in size and shape of workpieces during hardening. Mechanical accessories, in particular mandrel fixtures, are used for hardening workpieces. In known processes, the carburised workpieces are set on said mandrel fixtures and quenched. In order to simplify and reduce the cost of a hardening process by means of mandrel fixtures, the individual operations such as carburising, stacking of workpieces on the mandrel fixture and quenching are combined in a single process. A mechanical accessory used to carry out this process is made of a material that does not carburise together with the workpieces, i.e. the surface of the mandrel fixture is not changed into a hardened microstructure during carburising.
BR9507081A 1994-03-16 1995-03-11 Process and device to influence variations in dimension and shape when tempering workpieces BR9507081A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4408924A DE4408924A1 (en) 1994-03-16 1994-03-16 Method and device for influencing dimensional and shape changes when hardening workpieces
PCT/EP1995/000913 WO1995025182A1 (en) 1994-03-16 1995-03-11 Process and device for influencing the changes in size and shape of workpieces during hardening

Publications (1)

Publication Number Publication Date
BR9507081A true BR9507081A (en) 1997-09-16

Family

ID=6512943

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9507081A BR9507081A (en) 1994-03-16 1995-03-11 Process and device to influence variations in dimension and shape when tempering workpieces

Country Status (8)

Country Link
EP (1) EP0750683B1 (en)
JP (1) JPH09510261A (en)
KR (1) KR970701794A (en)
AT (1) ATE173300T1 (en)
BR (1) BR9507081A (en)
DE (2) DE4408924A1 (en)
ES (1) ES2124537T3 (en)
WO (1) WO1995025182A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032069B (en) * 2012-10-22 2015-01-14 安徽省皖江机电设备制造有限公司 Production method of cutting picks of coal mining machine
CN103447758A (en) * 2013-07-18 2013-12-18 陕西奥邦锻造有限公司 Integrated technique of hard alloy brazing and heat treatment for cutting pick
CN112522499B (en) * 2020-11-11 2022-08-02 中国航发中传机械有限公司 Heat treatment method of oblique-amplitude plate cylindrical gear for aviation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177563A (en) * 1960-06-28 1965-04-13 Laval Turbine Method of treating gears and the like
US4212690A (en) * 1979-03-23 1980-07-15 Nasa Heat treat fixture and method of heat treating
CH647811A5 (en) * 1981-06-19 1985-02-15 Maag Zahnraeder & Maschinen Ag METHOD FOR REDUCING THE DISTANCE OF HARDNESS IN THE USE OF LARGE STEEL SPROCKETS AND SUITABLE SUPPORT BODIES THEREFOR.
FR2593192B1 (en) * 1986-01-20 1992-01-24 Stein Heurtey HEATING AND TEMPERING UNDER PRESS OF METAL PARTS
DE3906217C1 (en) * 1989-02-28 1989-11-23 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Rod- or ring-shaped workpiece-adapted receiving device for rotationally symmetrical workpieces
DE4133799A1 (en) * 1990-10-15 1992-04-16 Zahnradfabrik Friedrichshafen METHOD AND DEVICE FOR INFLUENCING DIMENSIONS AND DIMENSIONS IN HARDENING WORKPIECES

Also Published As

Publication number Publication date
ES2124537T3 (en) 1999-02-01
DE59504224D1 (en) 1998-12-17
KR970701794A (en) 1997-04-12
ATE173300T1 (en) 1998-11-15
EP0750683B1 (en) 1998-11-11
DE4408924A1 (en) 1995-09-21
EP0750683A1 (en) 1997-01-02
JPH09510261A (en) 1997-10-14
WO1995025182A1 (en) 1995-09-21

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Legal Events

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B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 10A,11A,12A,13A,14A,15 E 16A ANUIDADE(S).

B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B24F Patent annual fee: publication cancelled

Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2255 DE 25/03/2014 POR TER SIDO INDEVIDA.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

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B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2605 DE 08-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.