GB1042684A - Heat treating furnace - Google Patents

Heat treating furnace

Info

Publication number
GB1042684A
GB1042684A GB12047/65D GB1204765D GB1042684A GB 1042684 A GB1042684 A GB 1042684A GB 12047/65 D GB12047/65 D GB 12047/65D GB 1204765 D GB1204765 D GB 1204765D GB 1042684 A GB1042684 A GB 1042684A
Authority
GB
United Kingdom
Prior art keywords
retort
casing
sprocket wheel
protective gas
discharge
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
GB12047/65D
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.)
Pacific Scientific Co
Original Assignee
Pacific Scientific Co
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 Pacific Scientific Co filed Critical Pacific Scientific Co
Publication of GB1042684A publication Critical patent/GB1042684A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • 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
    • C21D1/62—Quenching devices
    • C21D1/63—Quenching devices for bath quenching
    • 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
    • C21D9/0031—Rotary furnaces with horizontal or slightly inclined axis
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • Y10T29/49382—Helically finned
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • Y10T29/49384—Internally finned

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

1,042,684. Rotary furnaces. PACIFIC SCIENTIFIC CO. March 10, 1965 [March 13, 1964], No. 10247/65. Heading F4B. A furnace for carburizing, carbonitriding, carbon testing, hardening or drawing small metal parts in a protective gas atmosphere comprises a cylindrical rotary retort 10 with a removable lining 8 having a smooth helical ridge 9 to transport the parts therethrough, mounted in a chamber 4 heated by gas burners 6 or electricity. The chamber 4 is defined by a furnace casing 1 and its insulation 3. The thin temperature resistant wrought alloy lining 8 in which the ridge 9 is formed, slidably fits inside a thicker temperature resistant alloy outer casing 10, and is welded thereto at the discharge end 15. The charging end of the retort, supported by bearing collar 16 and rollers 17 is closed by end-plate 11 through which vibrating charging tray 13 projects through central aperture 12 surrounded by curtain burner 14 to check air infiltration. A frusto-conical discharge apron 18 is attached to the rear end of the retort 8, 10 to which'a sprocket wheel 19 driven by chain 20 off a variable speed reversible D:C. motor is secured to enable the retort to be rotated or oscillated at a desired speed. A conical insulated closure plug 26 formed with an integral discharge shoot 28 seals the discharge end of retort 8, 10. The plug 26 mounted on casing 1 presses against seals 36, 35 mounted between itself and the sprocket wheel 19 and'the sprocket wheel and the casing 1 respectively, with a yieldable pressure under the action of compression springs (Fig. 3, not shown) to seal off the interior of the retort 8, 10 and the combustion chamber 4 respectively from the atmosphere. The treated parts are discharged through shoot 28 past a liquid seal on to a conveyor belt 40 in a circulating oil-filled quench tank 38 to be deposited in basket 43. A thermocouple 45, peepsight 44 and protective gas supply inlet 48 are provided in the closure plug 26, additional protective gas being introduced at duct extension 28<SP>1</SP> which also includes a Venturi oil fume exhaust 45<SP>1</SP>.
GB12047/65D 1964-03-13 1965-03-10 Heat treating furnace Expired GB1042684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US351643A US3272489A (en) 1964-03-13 1964-03-13 Heat treating furnace with removable helical insert

Publications (1)

Publication Number Publication Date
GB1042684A true GB1042684A (en) 1966-09-14

Family

ID=23381725

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12047/65D Expired GB1042684A (en) 1964-03-13 1965-03-10 Heat treating furnace

Country Status (4)

Country Link
US (1) US3272489A (en)
DE (1) DE1483021B2 (en)
FR (1) FR1428350A (en)
GB (1) GB1042684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999067432A1 (en) * 1998-06-23 1999-12-29 Bortec Gmbh Device for hardening bulk materials after their thermochemical treatment in a powder or granulate

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468524A (en) * 1968-06-25 1969-09-23 Halaco Eng Co Metal treatment furnace
US3809377A (en) * 1972-12-22 1974-05-07 E Bryjak Rotary vessel furnace
US3836324A (en) * 1973-08-06 1974-09-17 American Gas Furnace Co Continuous rotary heat treating furnace
US4286946A (en) * 1980-04-24 1981-09-01 Gte Products Corporation Calciner reverse feed discharge spiral
FR2603305B1 (en) * 1986-08-27 1988-12-09 Chareille Pierre OVEN FOR STABILIZATION AND INCOME OF SPRINGS AND HEAT TREATMENT OF SMALL PARTS
DE4119863C2 (en) * 1991-06-17 1995-06-14 Kohnle W Waermebehandlung Device for quenching heated metal parts with a device for extracting vapors
US20190024980A1 (en) * 2017-07-18 2019-01-24 Amerifab, Inc. Duct system with integrated working platforms
RU2771058C1 (en) * 2018-05-14 2022-04-25 Гренцебах Бсх Гмбх Device with rotating tube
CN112239805A (en) * 2020-08-28 2021-01-19 杭州多宝电子有限公司 Heat treatment process for high-temperature-resistant bearing sleeve of automobile generator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US695041A (en) * 1902-03-11 Ernst Fues Drying-cylinder.
US2107439A (en) * 1935-12-31 1938-02-08 Nat Malleable & Steel Castings Furnace burner
US2624561A (en) * 1949-09-20 1953-01-06 Surface Combustion Corp Heat-treating furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999067432A1 (en) * 1998-06-23 1999-12-29 Bortec Gmbh Device for hardening bulk materials after their thermochemical treatment in a powder or granulate

Also Published As

Publication number Publication date
US3272489A (en) 1966-09-13
FR1428350A (en) 1966-02-11
DE1483021B2 (en) 1970-07-02
DE1483021A1 (en) 1969-04-10

Similar Documents

Publication Publication Date Title
KR860001201A (en) Continuous Atmospheric Heat Treatment Furnace
GB1042684A (en) Heat treating furnace
ES350049A1 (en) Rotary concentric partition in a coke oven hearth
US3441259A (en) Heat treating furnace
US2168028A (en) Heat treating system
US3857553A (en) Heat treatment furnace and method
US1841625A (en) Retort furnace
US2898099A (en) Rotating drum heat-treating furnace with internal fan
GB1208134A (en) Improvements in or relating to continuous carburising
US2181928A (en) Forced circulation fuel fired furnace
GB1246992A (en) Rotary kiln for continuous carbonisation of coal without contact with heating gases
GB1208672A (en) Improvements in or relating to rotary retort furnaces
US2872176A (en) Rotary furnaces
ES418741A1 (en) Oven apparatus
JPS5943970B2 (en) Purging method for charging/extracting bestibles in an atmospheric heat treatment furnace
GB862764A (en) A device for the production of smeltable briquettes from iron ore
SU739322A1 (en) Apparatus for chemical and heat treatment
SU450838A1 (en) Method of circulating furnace gases
GB1381667A (en) Heat treating furnace
SU703738A1 (en) Furnace for chemical and thermal treatment
GB764779A (en) Improvements in or relating to rotary furnaces
US1033815A (en) Apparatus for case-hardening and other metal treatment.
SU392120A1 (en) GAS CHAMBER OVEN
JPS5623234A (en) Heating apparatus for strip in continuous annealing furnace
US2013486A (en) Rotary furnace