GB748596A - Improvements in or relating to furnaces for the heat treatment of materials - Google Patents

Improvements in or relating to furnaces for the heat treatment of materials

Info

Publication number
GB748596A
GB748596A GB16509/52A GB1650952A GB748596A GB 748596 A GB748596 A GB 748596A GB 16509/52 A GB16509/52 A GB 16509/52A GB 1650952 A GB1650952 A GB 1650952A GB 748596 A GB748596 A GB 748596A
Authority
GB
United Kingdom
Prior art keywords
furnace
jet
furnaces
roof
relating
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
GB16509/52A
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.)
Heurtey & Cie
Original Assignee
Heurtey & Cie
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 Heurtey & Cie filed Critical Heurtey & Cie
Publication of GB748596A publication Critical patent/GB748596A/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
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof

Abstract

748,596. Tunnel furnaces. HEURTEY & CIE. July 1, 1952 [Feb. 8, 1952], No. 16509/52. Class 51(2). A tunnel furnace is divided into sections or closed at its ends by a thin gaseous curtain comprising gases withdrawn from the furnace by a fan 11 through ports 7, a duct 9 and a cooler 10, and re-introduced into the furnace through roof nozzles 13 to form the gaseous curtain. In a modification, Fig.2 (not shown), the gases pass from the furnace into a side flue under suction of a jet discharging into a venturi leading to a top header from which the gases pass through roof nozzles to form the gaseous curtain in the furnace. A number of sets of roof jets may be closely spaced together, each fed by its own venturi jet, which jet may be replaced by a burner.
GB16509/52A 1952-02-08 1952-07-01 Improvements in or relating to furnaces for the heat treatment of materials Expired GB748596A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR748596X 1952-02-08

Publications (1)

Publication Number Publication Date
GB748596A true GB748596A (en) 1956-05-09

Family

ID=9148530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16509/52A Expired GB748596A (en) 1952-02-08 1952-07-01 Improvements in or relating to furnaces for the heat treatment of materials

Country Status (1)

Country Link
GB (1) GB748596A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197938A (en) * 1986-11-26 1988-06-02 Ipsen Ind Int Gmbh Creation of flame fronts at charging openings of heat-treatment furnaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197938A (en) * 1986-11-26 1988-06-02 Ipsen Ind Int Gmbh Creation of flame fronts at charging openings of heat-treatment furnaces

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