ES2008312A6 - Creation of flame fronts at charging openings of heat-treatment furnaces - Google Patents

Creation of flame fronts at charging openings of heat-treatment furnaces

Info

Publication number
ES2008312A6
ES2008312A6 ES8703165A ES8703165A ES2008312A6 ES 2008312 A6 ES2008312 A6 ES 2008312A6 ES 8703165 A ES8703165 A ES 8703165A ES 8703165 A ES8703165 A ES 8703165A ES 2008312 A6 ES2008312 A6 ES 2008312A6
Authority
ES
Spain
Prior art keywords
flame front
heat
flame
creation
furnace
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
Application number
ES8703165A
Other languages
Spanish (es)
Inventor
Cornelius H Luiten
Werner Gohring
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.)
Ipsen International GmbH
Original Assignee
Ipsen International 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 Ipsen International GmbH filed Critical Ipsen International GmbH
Publication of ES2008312A6 publication Critical patent/ES2008312A6/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0073—Seals
    • F27D99/0075—Gas curtain seals
    • 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

Abstract

A flame front (8) is created at an opening (4) of a charging duct (3) of a heat-treatment furnace (2), through which opening workpieces are inserted into and/or removed from a furnace chamber, which has a combustible protective atmosphere. The flame curtain, which has been used until now, is replaced by a steep flame front which is substantially perpendicular to the axis of the duct and which separates the protective atmosphere in the furnace chamber from the ambient air and by means of which ambient air or burnt gases can be prevented from entering the charging duct and/or furnace chamber. The flame front is created using a substantially reduced gas volume outflow from the furnace by feeding a comparatively cold non-combustible gas or gas mixture to the flame front via a pipe (6).
ES8703165A 1986-11-26 1987-11-05 Creation of flame fronts at charging openings of heat-treatment furnaces Expired ES2008312A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863640324 DE3640324A1 (en) 1986-11-26 1986-11-26 METHOD AND DEVICE FOR DESIGNING A FLAME FRONT ON A FEEDING OPENING OF A HEAT TREATMENT OVEN

Publications (1)

Publication Number Publication Date
ES2008312A6 true ES2008312A6 (en) 1989-07-16

Family

ID=6314769

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8703165A Expired ES2008312A6 (en) 1986-11-26 1987-11-05 Creation of flame fronts at charging openings of heat-treatment furnaces

Country Status (4)

Country Link
DE (1) DE3640324A1 (en)
ES (1) ES2008312A6 (en)
FR (1) FR2607233B1 (en)
GB (1) GB2197938A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011053698C5 (en) * 2011-09-16 2017-11-16 Benteler Automobiltechnik Gmbh Process for the manufacture of structural and chassis components by thermoforming and heating station

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1357790A (en) * 1919-10-04 1920-11-02 Marx Richard Furnace
FR739672A (en) * 1932-05-19 1933-01-16 Improved process of heat treatment of metals and furnace for its realization
GB478879A (en) * 1936-06-10 1938-01-21 Siemens Ag Improvements in and relating to kilns
GB748596A (en) * 1952-02-08 1956-05-09 Heurtey & Cie Improvements in or relating to furnaces for the heat treatment of materials
GB862764A (en) * 1958-10-11 1961-03-15 Demag Humboldt Niederschachtof A device for the production of smeltable briquettes from iron ore
US3575398A (en) * 1968-11-13 1971-04-20 Midland Ross Corp Apparatus for minimizing atmosphere upset in a furnace for heat treating articles
US3618919A (en) * 1969-11-03 1971-11-09 Btu Eng Corp Adjustable heat and gas barrier
US4032290A (en) * 1976-05-24 1977-06-28 Btu Engineering Corporation High temperature furnace muffle
AT362809B (en) * 1978-12-11 1981-06-25 Messer Griesheim Austria Gesse USE OF A COMBUSTION GAS-NITROGEN MIXTURE FOR SUPPLYING ONE OF THE ENTRANCE DOORS OF A BURNER FOR HEAT TREATMENT ASSIGNED TO WORKPIECES
GB2139741B (en) * 1983-05-04 1988-06-08 Air Prod & Chem Method of operating heat treatment furnace

Also Published As

Publication number Publication date
GB8725906D0 (en) 1987-12-09
DE3640324A1 (en) 1988-06-09
FR2607233A1 (en) 1988-05-27
GB2197938A (en) 1988-06-02
FR2607233B1 (en) 1991-02-08

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2007-11-05