GB1533309A - Method of heating flat strip stock and furnace therefor - Google Patents

Method of heating flat strip stock and furnace therefor

Info

Publication number
GB1533309A
GB1533309A GB5078876A GB5078876A GB1533309A GB 1533309 A GB1533309 A GB 1533309A GB 5078876 A GB5078876 A GB 5078876A GB 5078876 A GB5078876 A GB 5078876A GB 1533309 A GB1533309 A GB 1533309A
Authority
GB
United Kingdom
Prior art keywords
plates
combustion
heated
heat treatment
stock
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
GB5078876A
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.)
Thermo Fisher Scientific Inc
Original Assignee
Thermo Electron Corp
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 Thermo Electron Corp filed Critical Thermo Electron Corp
Priority to GB5078876A priority Critical patent/GB1533309A/en
Priority to FR7637908A priority patent/FR2372898A1/en
Priority to CA292,244A priority patent/CA1072823A/en
Publication of GB1533309A publication Critical patent/GB1533309A/en
Priority to US06/011,981 priority patent/US4202661A/en
Expired 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
    • C21D1/34—Methods of heating
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • F27B9/36—Arrangements of heating devices
    • 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
    • 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
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
    • 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
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D99/0035—Heating indirectly through a radiant surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
    • F27M2001/1539—Metallic articles
    • F27M2001/156—Flat articles
    • F27M2001/1565—Sheets

Abstract

1533309 Continuous heat treatment furnaces THERMO ELECTRON CORP 6 Dec 1976 50788/76 Heading F4B Flat metal stock 15, in the form of strips, slabs or sheets, is heated in a continuous heat treatment furnace 10 both by radiation from a series of perforated refractory plates 26 and by direct impingement of jets of combustion products issuing from the openings 28 in said plates 26. The plates 26, which serve to separate the heat treatment chamber 17 of the furnace from a plurality of combustion chambers 22 positioned thereabove, are arranged in a common plane which is parallel to but spaced from the confronting flat surface of the metal stack 15 to be heated. The openings 28 in each plate are uniformly distributed, and each combustion chamber 22 has an associated burner 24 which is supplied with combustion air via an inlet pipe 30 and fuel via a pipe 28. The pipes 28 and 30 are connected to respective common manifolds 32, 34, with air manifold 34 being connected to a blower 36. The operating conditions are such as to ensure that complete combustion takes place within the chambers 22. The combustion products after impingement with the metal stock 15 in chamber 17 are exhausted therefrom through flues 38. Preferably the ratio of l/d is within the range of 10 to 15, where I = diameter of an individual opening in the plates 26 and d is the distance of the plates 26 from the confronting surface of the metal stock 15 being heated. The stock 15 is supported on rollers 20.
GB5078876A 1976-12-06 1976-12-06 Method of heating flat strip stock and furnace therefor Expired GB1533309A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB5078876A GB1533309A (en) 1976-12-06 1976-12-06 Method of heating flat strip stock and furnace therefor
FR7637908A FR2372898A1 (en) 1976-12-06 1976-12-16 RADIATION HEATING PROCESS AND DEVICE AND JET IMPACT
CA292,244A CA1072823A (en) 1976-12-06 1977-12-02 Jet impingement radiation furnace, method and apparatus
US06/011,981 US4202661A (en) 1976-12-06 1979-02-14 Jet implement radiation furnace, method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5078876A GB1533309A (en) 1976-12-06 1976-12-06 Method of heating flat strip stock and furnace therefor

Publications (1)

Publication Number Publication Date
GB1533309A true GB1533309A (en) 1978-11-22

Family

ID=10457353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5078876A Expired GB1533309A (en) 1976-12-06 1976-12-06 Method of heating flat strip stock and furnace therefor

Country Status (3)

Country Link
CA (1) CA1072823A (en)
FR (1) FR2372898A1 (en)
GB (1) GB1533309A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447527A1 (en) * 1979-01-29 1980-08-22 Heurtey Metallurgie Circulation of air or gas in heat treatment furnace - by pumping in cooled gas which is heated by outflowing gas
JPH03255807A (en) * 1990-03-02 1991-11-14 Inax Corp Burner for surface reduction of burned item
IT248291Y1 (en) * 1999-12-10 2002-12-16 Sacmi Forni Spa SINGLE LAYER OVEN FOR CERAMIC PRODUCTS.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279917A (en) * 1940-03-09 1942-04-14 Edge Dexter Continuous furnace
GB867250A (en) * 1958-11-19 1961-05-03 Humphrey Stafford Cranfield Improvements in heat treating ovens
FR1432434A (en) * 1965-05-10 1966-03-18 Armco Steel Corp Method and furnace for heating metal parts
US3439996A (en) * 1965-06-09 1969-04-22 Solaronics Inc Tile assembly for radiant gas burners
DE1900287A1 (en) * 1969-01-03 1970-07-30 Heurtey Sa Thermal treatment of paper and metal strips and - painted metal

Also Published As

Publication number Publication date
FR2372898A1 (en) 1978-06-30
FR2372898B1 (en) 1980-10-31
CA1072823A (en) 1980-03-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee