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GB922168A - Improvements in or relating to crucible furnaces - Google Patents

Improvements in or relating to crucible furnaces

Info

Publication number
GB922168A
GB922168A GB172262A GB172262A GB922168A GB 922168 A GB922168 A GB 922168A GB 172262 A GB172262 A GB 172262A GB 172262 A GB172262 A GB 172262A GB 922168 A GB922168 A GB 922168A
Authority
GB
United Kingdom
Prior art keywords
door
pedal
jan
enclosure
opened
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
GB172262A
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.)
Centre Technique des Industries de la Fonderie
Original Assignee
Centre Technique des Industries de la Fonderie
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 Centre Technique des Industries de la Fonderie filed Critical Centre Technique des Industries de la Fonderie
Publication of GB922168A publication Critical patent/GB922168A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F27B14/00—Crucible or pot furnaces
    • F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • 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
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
    • 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
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details specially adapted for crucible or pot furnaces
    • F27B14/10—Crucibles
    • F27B14/12—Covers therefor
    • 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
    • F27D19/00—Arrangements of controlling 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
    • F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
    • F27D21/02—Observation or illuminating 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
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

922,168. Crucible furnace. CENTRE TECHNIQUE DES INDUSTRIES DE LA FONDERIE. Jan 17, 1962 [Jan. 18, 1961], No. 1722/62. Class 51 (2). A crucible furnace 1 is surmounted by an enclosure 2 comprising an access door 6, a means for supplying a neutral gas e.g. nitrogen therewith and has a system which increases the gas flow when the door is opened. The door 6 seals against an asbestos joint 8 and can be controlled by a pedal 21 which operates the compressed-air jack 9, said jack actuating the door by a cable 11 passing over a sector member 13. The enclosure 2 is supplied by nozzle 16 with gas via pressure-reducing valves 18 and 19 and conduit 17 at a slow, constant rate, but when the access door is opened a valve 20, which is also actuated by pedal 21, opens and allows an increased to compensate for loss through the open door. An opening 22 is provided for a pyrometer.
GB172262A 1961-01-18 1962-01-17 Improvements in or relating to crucible furnaces Expired GB922168A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR849981A FR1296561A (en) 1961-01-18 1961-01-18 Improvements to crucible furnaces

Publications (1)

Publication Number Publication Date
GB922168A true GB922168A (en) 1963-03-27

Family

ID=8746933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB172262A Expired GB922168A (en) 1961-01-18 1962-01-17 Improvements in or relating to crucible furnaces

Country Status (3)

Country Link
DE (1) DE1221399B (en)
FR (1) FR1296561A (en)
GB (1) GB922168A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE622904C (en) * 1933-01-12 1935-12-09 Fond Montupet Sa Press casting machine, in particular for processing magnesium alloys
DE1687234U (en) * 1954-08-05 1954-11-11 Metallgesellschaft Ag ARC MELTING FURNACE.

Also Published As

Publication number Publication date
FR1296561A (en) 1962-06-22
DE1221399B (en) 1966-07-21

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