ATE104360T1 - METHODS OF HEAT TREATMENT OF WORKPIECES. - Google Patents

METHODS OF HEAT TREATMENT OF WORKPIECES.

Info

Publication number
ATE104360T1
ATE104360T1 AT89114350T AT89114350T ATE104360T1 AT E104360 T1 ATE104360 T1 AT E104360T1 AT 89114350 T AT89114350 T AT 89114350T AT 89114350 T AT89114350 T AT 89114350T AT E104360 T1 ATE104360 T1 AT E104360T1
Authority
AT
Austria
Prior art keywords
furnace
treatment
gas
heat treatment
workpieces
Prior art date
Application number
AT89114350T
Other languages
German (de)
Inventor
Peter Dr Dipl-Ing Vocke
Thomas Dipl-Ing Kamm
Andreas Dipl-Ing Dey
Hilmar Dipl-Ing Storz
Original Assignee
Linde Ag
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 Linde Ag filed Critical Linde Ag
Application granted granted Critical
Publication of ATE104360T1 publication Critical patent/ATE104360T1/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
    • C21D1/74—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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
    • 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
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/02—Supplying steam, vapour, gases, or liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Furnace Details (AREA)
  • Heat Treatment Of Articles (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

The invention relates to a method of heat treating workpieces (metal, ceramic) in a continuous furnace and, at the same time, especially to the influencing of the flow of the treatment-gas atmosphere existing in the furnace. It is possible to influence the flow of the furnace gas by blowing in a proportion of the treatment gas required for the heat treatment at a pressure lying above the normal feed pressure of the treatment gas and directed into one or more furnace zones.
AT89114350T 1988-08-18 1989-08-03 METHODS OF HEAT TREATMENT OF WORKPIECES. ATE104360T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3828134A DE3828134A1 (en) 1988-08-18 1988-08-18 METHOD FOR THE HEAT TREATMENT OF WORKPIECES
EP89114350A EP0355520B1 (en) 1988-08-18 1989-08-03 Method of heat treating workpieces

Publications (1)

Publication Number Publication Date
ATE104360T1 true ATE104360T1 (en) 1994-04-15

Family

ID=6361156

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89114350T ATE104360T1 (en) 1988-08-18 1989-08-03 METHODS OF HEAT TREATMENT OF WORKPIECES.

Country Status (4)

Country Link
EP (1) EP0355520B1 (en)
AT (1) ATE104360T1 (en)
DE (2) DE3828134A1 (en)
ZA (1) ZA896284B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4121277C2 (en) * 1991-06-27 2000-08-03 Ald Vacuum Techn Ag Device and method for the automatic monitoring of operational safety and for controlling the process sequence in a vacuum heat treatment furnace
DE69918548T2 (en) * 1999-08-18 2005-08-25 Patherm SA. Apparatus for continuous heat treatment of metallic workpieces, individually or in groups
DE10347312B3 (en) * 2003-10-08 2005-04-14 Air Liquide Deutschland Gmbh Process for the heat treatment of iron materials
US7955450B2 (en) 2006-04-04 2011-06-07 Linde Aktiengesellschaft Method for heat treatment
DE102006015739A1 (en) * 2006-04-04 2007-10-11 Linde Ag Process for heat treatment
EP1842931B1 (en) * 2006-04-04 2014-02-19 Linde AG Method for heat treatment

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE617319C (en) * 1931-05-02 1935-08-16 Benno Schilde Maschb Akt Ges Procedure and device for bright annealing
US3415503A (en) * 1967-08-18 1968-12-10 Btu Eng Corp Conditioned atmosphere furnace muffle
DE2601658C3 (en) * 1976-01-17 1978-11-30 Fa. J.F. Mahler, 7300 Esslingen Cooling device for a continuous furnace open on the inlet and outlet side for the heat treatment of workpieces
DE2844843C2 (en) * 1978-10-14 1985-09-12 Ipsen Industries International Gmbh, 4190 Kleve Industrial furnace for the heat treatment of metallic workpieces
JPS57192215A (en) * 1981-05-21 1982-11-26 Ishikawajima Harima Heavy Ind Co Ltd Metal-heating oven
DE3277843D1 (en) * 1981-09-19 1988-01-28 British Oxygen Co Ltd Heat treatment of metals
DE3208574A1 (en) * 1982-03-10 1983-09-22 Schmetz Industrieofenbau und Vakuum-Hartlöttechnik KG, 5750 Menden Vacuum shaft furnace
DE3736501C1 (en) * 1987-10-28 1988-06-09 Degussa Process for the heat treatment of metallic workpieces

Also Published As

Publication number Publication date
EP0355520A2 (en) 1990-02-28
ZA896284B (en) 1990-04-25
DE58907441D1 (en) 1994-05-19
EP0355520A3 (en) 1990-04-18
EP0355520B1 (en) 1994-04-13
DE3828134A1 (en) 1990-02-22

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Legal Events

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