EP1010484A3 - Combination conduction/convection furnace - Google Patents

Combination conduction/convection furnace Download PDF

Info

Publication number
EP1010484A3
EP1010484A3 EP99105668A EP99105668A EP1010484A3 EP 1010484 A3 EP1010484 A3 EP 1010484A3 EP 99105668 A EP99105668 A EP 99105668A EP 99105668 A EP99105668 A EP 99105668A EP 1010484 A3 EP1010484 A3 EP 1010484A3
Authority
EP
European Patent Office
Prior art keywords
environment
heating
casting
combination
convection furnace
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.)
Withdrawn
Application number
EP99105668A
Other languages
German (de)
French (fr)
Other versions
EP1010484A2 (en
Inventor
Scott P. Crafton
James L. Lewis, Jr.
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.)
Consolidated Engineering Co Inc
Original Assignee
Consolidated Engineering Co 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 Consolidated Engineering Co Inc filed Critical Consolidated Engineering Co Inc
Publication of EP1010484A2 publication Critical patent/EP1010484A2/en
Publication of EP1010484A3 publication Critical patent/EP1010484A3/en
Withdrawn legal-status Critical Current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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/001—Removing cores
    • B22D29/003—Removing cores using heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
    • B22D31/002—Cleaning, working on castings
    • 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
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/04—Ram or pusher apparatus
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
    • F27B9/2415—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace) the charge rotating about an axis transversal to the axis of advancement of the charge
    • 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
    • F27D7/04—Circulating atmospheres by mechanical means
    • F27D2007/045—Fans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Tunnel Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

A single furnace system (10) integrates, in combination, two or more distinct heating environments (which in the preferred embodiments include a conduction heating environment (23) and a convection heating environment (24)) integrated such that the multiple environments define a continuous heating chamber (14) through which a moving workpiece (such as a casting) transitions from one heating environment to the other without being exposed to the atmosphere. In accordance with the preferred methods, the transitioning of the casting from one environment to the other is accomplished with no meaningful change in temperature.
EP99105668A 1998-12-15 1999-03-19 Combination conduction/convection furnace Withdrawn EP1010484A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11240098P 1998-12-15 1998-12-15
US112400P 1998-12-15

Publications (2)

Publication Number Publication Date
EP1010484A2 EP1010484A2 (en) 2000-06-21
EP1010484A3 true EP1010484A3 (en) 2000-06-28

Family

ID=22343692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99105668A Withdrawn EP1010484A3 (en) 1998-12-15 1999-03-19 Combination conduction/convection furnace

Country Status (2)

Country Link
EP (1) EP1010484A3 (en)
JP (1) JP2000202571A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6336809B1 (en) 1998-12-15 2002-01-08 Consolidated Engineering Company, Inc. Combination conduction/convection furnace
US6506048B1 (en) * 2001-11-01 2003-01-14 Procedyne Corp. Apparatus and method for transferring heat treated parts

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448573A1 (en) * 1979-02-06 1980-09-05 Physique Appliquee Ind Continuous automatic heat treatment plant - using row of fluidised beds, esp. for isothermal treatment of steel in absence of air
GB2187398A (en) * 1983-12-22 1987-09-09 Tudor Roof Tile Co Limited Method and apparatus for heat treatment
EP0546210A1 (en) * 1991-05-24 1993-06-16 Consolidated Engineering Company, Inc. Method and apparatus for heat treating metal casting
US5294094A (en) * 1989-09-29 1994-03-15 Consolidated Engineering Company Method and apparatus for heat treating metal castings
US5565046A (en) * 1989-09-29 1996-10-15 Consolidated Engineering Company, Inc. Heat treatment of metal castings and integrated sand reclamation
DE19530975A1 (en) * 1995-08-23 1997-02-27 Vaw Alucast Gmbh Furnace for the removal of mould sand from castings
WO1997030805A1 (en) * 1996-02-23 1997-08-28 Consolidated Engineering Company, Inc. System and process for reclaiming sand
WO1998014291A1 (en) * 1996-09-30 1998-04-09 Procedyne Corp. Sand core removal and casting heat treatment

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448573A1 (en) * 1979-02-06 1980-09-05 Physique Appliquee Ind Continuous automatic heat treatment plant - using row of fluidised beds, esp. for isothermal treatment of steel in absence of air
GB2187398A (en) * 1983-12-22 1987-09-09 Tudor Roof Tile Co Limited Method and apparatus for heat treatment
US5294094A (en) * 1989-09-29 1994-03-15 Consolidated Engineering Company Method and apparatus for heat treating metal castings
US5565046A (en) * 1989-09-29 1996-10-15 Consolidated Engineering Company, Inc. Heat treatment of metal castings and integrated sand reclamation
EP0546210A1 (en) * 1991-05-24 1993-06-16 Consolidated Engineering Company, Inc. Method and apparatus for heat treating metal casting
DE19530975A1 (en) * 1995-08-23 1997-02-27 Vaw Alucast Gmbh Furnace for the removal of mould sand from castings
WO1997030805A1 (en) * 1996-02-23 1997-08-28 Consolidated Engineering Company, Inc. System and process for reclaiming sand
US5829509A (en) * 1996-02-23 1998-11-03 Consolidated Engineering Co, Inc. Integrated system and process for heat treating castings and reclaiming sand
WO1998014291A1 (en) * 1996-09-30 1998-04-09 Procedyne Corp. Sand core removal and casting heat treatment

Also Published As

Publication number Publication date
JP2000202571A (en) 2000-07-25
EP1010484A2 (en) 2000-06-21

Similar Documents

Publication Publication Date Title
CA2355078A1 (en) Combination conduction/convection furnace
GB9917809D0 (en) Magnesium alloy for high temperature applications
DE3873324T2 (en) CEMENT PREPARATION, HAZARDOUS AT LOW TEMPERATURES.
EP0940680A3 (en) Gas sensors
DE69002888D1 (en) Thermal conditioning furnace.
EP0995960A3 (en) Method and apparatus for cooling a cvi/cvd furnace
DE59003756D1 (en) Composite body made of graphite and refractory metal.
DE69934921D1 (en) Ash smelting furnace and process
EP1010484A3 (en) Combination conduction/convection furnace
DE68916236D1 (en) Metal melting and holding furnace.
EP0779298A3 (en) Thermostable geranylgeranyl diphosphate synthase
CA2067531A1 (en) Mullite/yttria stabilized zirconia/boron nitride composites
AU5369399A (en) Basic refractory ceramic hollow body
Glass Observations on the influence of an above average sulfur content on the microstructure and the machinability of cast iron with laminar graphite
CA2250262A1 (en) Mixtures and methods for suppressing precipitation of chloroacetamides
Ajder et al. Tribological behavior of sintered composite materials
Drummond 61 st Conference on Glass Problems
RU98103668A (en) REFRACTORY MASS
WESTON MICROSTRUCTURE OF LASER GLAZED NICKEL-ALUMINIUM BRONZE ALLOY DGS-348
Wang et al. STEEL PIPES WITH SHS-CENTRIFUGAL CASTING CERAMIC(Chinese)
ES2151405A1 (en) Stainless steel refractory properties enhancement technique consists of surface modification by addition of lanthanides, to increase oxidation resistance
Valle et al. Unharmful engobes for refractory ceramics
Wei et al. THERMAL EXPANSION OF Al 2 O 3-MgO-C BRICKS IN APPLICATION
Harbison Benefits of Using Oxygen Measurement in Glass Plants
Ohotskiy Temperature of steel-melting slags fusion

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE ES FR GB IT LI SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20001221

AKX Designation fees paid

Free format text: AT CH DE ES FR GB IT LI SE

17Q First examination report despatched

Effective date: 20011113

APBT Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9E

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20031017

APAA Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOS REFN

APAF Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNE