DE58907441D1 - Process for heat treatment of workpieces. - Google Patents

Process for heat treatment of workpieces.

Info

Publication number
DE58907441D1
DE58907441D1 DE58907441T DE58907441T DE58907441D1 DE 58907441 D1 DE58907441 D1 DE 58907441D1 DE 58907441 T DE58907441 T DE 58907441T DE 58907441 T DE58907441 T DE 58907441T DE 58907441 D1 DE58907441 D1 DE 58907441D1
Authority
DE
Germany
Prior art keywords
furnace
treatment
gas
heat treatment
workpieces
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE58907441T
Other languages
German (de)
Inventor
Peter Dr Dipl Ing Vocke
Thomas Dipl Ing Kamm
Andreas Dipl Ing Dey
Hilmar Dipl Ing Storz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Application granted granted Critical
Publication of DE58907441D1 publication Critical patent/DE58907441D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
  • Furnace Details (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (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.
DE58907441T 1988-08-18 1989-08-03 Process for heat treatment of workpieces. Expired - Fee Related DE58907441D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3828134A DE3828134A1 (en) 1988-08-18 1988-08-18 METHOD FOR THE HEAT TREATMENT OF WORKPIECES

Publications (1)

Publication Number Publication Date
DE58907441D1 true DE58907441D1 (en) 1994-05-19

Family

ID=6361156

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3828134A Ceased DE3828134A1 (en) 1988-08-18 1988-08-18 METHOD FOR THE HEAT TREATMENT OF WORKPIECES
DE58907441T Expired - Fee Related DE58907441D1 (en) 1988-08-18 1989-08-03 Process for heat treatment of workpieces.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3828134A Ceased DE3828134A1 (en) 1988-08-18 1988-08-18 METHOD FOR THE 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
PL1842931T3 (en) * 2006-04-04 2014-07-31 Linde Ag Method for heat treatment
DE102006015739A1 (en) * 2006-04-04 2007-10-11 Linde Ag Process for heat treatment
BRPI0702253B1 (en) 2006-04-04 2020-02-04 Linde Ag heat treatment process of parts in a heat treatment oven

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
GB2108156B (en) * 1981-09-19 1986-01-15 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
EP0355520A3 (en) 1990-04-18
ZA896284B (en) 1990-04-25
ATE104360T1 (en) 1994-04-15
EP0355520B1 (en) 1994-04-13
EP0355520A2 (en) 1990-02-28
DE3828134A1 (en) 1990-02-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: LINDE GAS AG, 82049 HOELLRIEGELSKREUTH, DE

8327 Change in the person/name/address of the patent owner

Owner name: LINDE AG, 65189 WIESBADEN, DE

8339 Ceased/non-payment of the annual fee