GB882935A - Improvements in or relating to apparatus for the heat treatment of articles - Google Patents

Improvements in or relating to apparatus for the heat treatment of articles

Info

Publication number
GB882935A
GB882935A GB1827059A GB1827059A GB882935A GB 882935 A GB882935 A GB 882935A GB 1827059 A GB1827059 A GB 1827059A GB 1827059 A GB1827059 A GB 1827059A GB 882935 A GB882935 A GB 882935A
Authority
GB
United Kingdom
Prior art keywords
chamber
heat treatment
treatment chamber
ports
fan
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
GB1827059A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1827059A priority Critical patent/GB882935A/en
Publication of GB882935A publication Critical patent/GB882935A/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
    • C21D1/74—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

882,935. Heat treatment furnaces. GREENE, B. May 27, 1960 [May 28, 1959], No. 18270/69. Class 51 (2). A cylindrical heat treatment furnace of the forced convection type has a fan chamber 29 connected to roof and side ducts 19 opening into the treatment chamber by ports 20, a door 13 formed with a concavity 39 having a passage 41 to a heat exchanger 30 connected by a duet 28 to the fan chamber, and electric heating elements 8 suspended by conductors 9 in said ports 20. The shell comprises steel sections 10 lined with refractories 14 and 17 respectively formed with holes for suspension rods 15 and 18 attached to said shell. The hearth consists of steel plates 40 covered by refractory blocks 35 arranged to form channels 36 acting as air ducts, and also, if necessary, receiving the arms of a fork lift charging truck. Atmosphere gas, e.g. hydrogen, helium, nitrogen or argon, is supplied under pressure from a holder 51 and after use may pass through purifying and drying chambers on the inlet side of a pump 35. A vacuum pump 45 has a connection 46 either to duct 28 or to the treatment chamber. Air passages may extend from the fan outlet duct 26 through end wall 24 into the treatment chamber. Specification 867,249 is referred to.
GB1827059A 1959-05-28 1959-05-28 Improvements in or relating to apparatus for the heat treatment of articles Expired GB882935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1827059A GB882935A (en) 1959-05-28 1959-05-28 Improvements in or relating to apparatus for the heat treatment of articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1827059A GB882935A (en) 1959-05-28 1959-05-28 Improvements in or relating to apparatus for the heat treatment of articles

Publications (1)

Publication Number Publication Date
GB882935A true GB882935A (en) 1961-11-22

Family

ID=10109575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1827059A Expired GB882935A (en) 1959-05-28 1959-05-28 Improvements in or relating to apparatus for the heat treatment of articles

Country Status (1)

Country Link
GB (1) GB882935A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259919B (en) * 1964-06-12 1968-02-01 Harold Norregard Ipsen Furnace for the heat treatment of metal workpieces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259919B (en) * 1964-06-12 1968-02-01 Harold Norregard Ipsen Furnace for the heat treatment of metal workpieces

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