GB1490839A - Method and apparatus for moving a heat treating gas - Google Patents

Method and apparatus for moving a heat treating gas

Info

Publication number
GB1490839A
GB1490839A GB27090/76A GB2709076A GB1490839A GB 1490839 A GB1490839 A GB 1490839A GB 27090/76 A GB27090/76 A GB 27090/76A GB 2709076 A GB2709076 A GB 2709076A GB 1490839 A GB1490839 A GB 1490839A
Authority
GB
United Kingdom
Prior art keywords
processing gas
workload
heat treatment
furnace
pulsating
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
GB27090/76A
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.)
Ikon Office Solutions Inc
Original Assignee
Ikon Office Solutions Inc
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 Ikon Office Solutions Inc filed Critical Ikon Office Solutions Inc
Priority to GB27090/76A priority Critical patent/GB1490839A/en
Publication of GB1490839A publication Critical patent/GB1490839A/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
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • 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
    • 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
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • F27B17/0016—Chamber type furnaces
    • F27B17/0083—Chamber type furnaces with means for circulating the atmosphere
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Tunnel Furnaces (AREA)

Abstract

1490839 Heat treatment apparatus ALCO STANDARD CORP 29 June 1976 27090/76 Heading F4B [Also in Division C7] In a heat treatment furnace 10 with a refractory walled enclosure 16 defining a chamber 17 having elements 20 for heating a workload 11, processing gas is admitted through an injector 29 and is withdrawn through a line 31. A pneumatically actuated reciprocating plunger 35 in a compartment 36 imparts a pulsating motion to the processing gas as it passes past the work load towards the point of exit. An additional plunger may be fitted to impart pulsating multi-directional flow to the processing gas (Figs. 3-5). The furnace may be of the vacuum type with a pump 21 to evacuate the interior and with a peripheral water jacket 15. The processing gas may be methane for case hardening the workload by the vacuum carburizing process.
GB27090/76A 1976-06-29 1976-06-29 Method and apparatus for moving a heat treating gas Expired GB1490839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB27090/76A GB1490839A (en) 1976-06-29 1976-06-29 Method and apparatus for moving a heat treating gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27090/76A GB1490839A (en) 1976-06-29 1976-06-29 Method and apparatus for moving a heat treating gas

Publications (1)

Publication Number Publication Date
GB1490839A true GB1490839A (en) 1977-11-02

Family

ID=10254032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27090/76A Expired GB1490839A (en) 1976-06-29 1976-06-29 Method and apparatus for moving a heat treating gas

Country Status (1)

Country Link
GB (1) GB1490839A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010065339A1 (en) * 2008-11-25 2010-06-10 Corning Incorporated Bi-directional flow for processing shaped bodies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010065339A1 (en) * 2008-11-25 2010-06-10 Corning Incorporated Bi-directional flow for processing shaped bodies

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee