ATE165030T1 - HEAT TREATMENT OF CASTINGS AND SAND RECOVERY IN THE OVEN - Google Patents

HEAT TREATMENT OF CASTINGS AND SAND RECOVERY IN THE OVEN

Info

Publication number
ATE165030T1
ATE165030T1 AT93904665T AT93904665T ATE165030T1 AT E165030 T1 ATE165030 T1 AT E165030T1 AT 93904665 T AT93904665 T AT 93904665T AT 93904665 T AT93904665 T AT 93904665T AT E165030 T1 ATE165030 T1 AT E165030T1
Authority
AT
Austria
Prior art keywords
sand
heat treating
treating furnace
castings
oven
Prior art date
Application number
AT93904665T
Other languages
German (de)
Inventor
Scott P Crafton
Original Assignee
Cons Eng 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25459039&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE165030(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cons Eng Co filed Critical Cons Eng Co
Application granted granted Critical
Publication of ATE165030T1 publication Critical patent/ATE165030T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
    • B22C5/085—Cooling or drying the sand together with the castings
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/16—Both compacting and sintering in successive or repeated steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
    • 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
    • C21D1/34—Methods of heating
    • C21D1/53—Heating in fluidised beds
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/16—Both compacting and sintering in successive or repeated steps
    • B22F3/164—Partial deformation or calibration
    • B22F2003/166—Surface calibration, blasting, burnishing, sizing, coining

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Processing Of Solid Wastes (AREA)
  • Paper (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Casting Devices For Molds (AREA)

Abstract

The method and apparatus for reclaiming substantially pure sand from a heat treating furnace (19); wherein a casting with sand core and/or sand mold, comprising sand bound by a combustible binder, attached thereto is introduced into the heat treating furnace (19); or, wherein portions of sand core and/or sand mold that are not attached to a casting are introduced into the heat treating furnace (19). Wherein, the reclaiming within the furnace (19) is carried out, in part, by a fluidizer (40) that promotes binder combustion by one or more processes of agitating, heating, and oxygenating. Wherein the characteristics of the reclaimed sand (25) are selectively controlled by controlling the dwell time of the sand (25) within the heat treating furnace (19).
AT93904665T 1992-08-13 1993-01-27 HEAT TREATMENT OF CASTINGS AND SAND RECOVERY IN THE OVEN ATE165030T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US93019392A 1992-08-13 1992-08-13

Publications (1)

Publication Number Publication Date
ATE165030T1 true ATE165030T1 (en) 1998-05-15

Family

ID=25459039

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93904665T ATE165030T1 (en) 1992-08-13 1993-01-27 HEAT TREATMENT OF CASTINGS AND SAND RECOVERY IN THE OVEN

Country Status (13)

Country Link
EP (1) EP0612276B2 (en)
JP (2) JP2849213B2 (en)
KR (1) KR100263975B1 (en)
CN (1) CN1090066C (en)
AT (1) ATE165030T1 (en)
AU (1) AU677774B2 (en)
BR (1) BR9305607A (en)
CA (1) CA2121047C (en)
DE (1) DE69318000T3 (en)
ES (1) ES2114039T5 (en)
MX (1) MX9302659A (en)
TW (1) TW213490B (en)
WO (1) WO1994004297A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439045A (en) * 1994-01-19 1995-08-08 Consolidated Engineering Company, Inc. Method of heat treating metal castings, removing cores, and incinerating waste gasses
DE4427586C1 (en) * 1994-06-15 1995-07-20 Johann Muehlbauer Appts. for treating used foundry sand
DE19530975B4 (en) * 1995-08-23 2004-04-15 Consolidated Engineering Co. Furnace for removing molding sand from castings
US5901775A (en) * 1996-12-20 1999-05-11 General Kinematics Corporation Two-stage heat treating decoring and sand reclamation system
US5924473A (en) * 1996-12-20 1999-07-20 General Kinematics Corporation Vibratory sand reclamation system
US6453982B1 (en) 1996-12-20 2002-09-24 General Kinematics Corporation Sand cleaning apparatus
JP2001287019A (en) * 2000-03-31 2001-10-16 Asahi Tec Corp Method for heating cast material with core
DE10352180B4 (en) * 2003-11-05 2006-03-02 Dihag Deutsche Giesserei- Und Industrie-Holding Ag Casting process for the production of a casting
DE102007008149A1 (en) 2007-02-19 2008-08-21 Ashland-Südchemie-Kernfest GmbH Thermal regeneration of foundry sand
CN102397984A (en) * 2011-11-28 2012-04-04 芜湖火龙铸造有限公司 Automatic feeding forming device
US9895745B2 (en) 2013-09-04 2018-02-20 Nemak, S.A.B. De C.V. Method for demoulding a casting, cast from a light metal melt, from a casting mould
DE102014110826A1 (en) 2014-07-30 2016-02-04 Fritz Winter Eisengiesserei Gmbh & Co. Kg Method for casting castings
CN105215263B (en) * 2015-10-10 2017-12-19 中车长江车辆有限公司 A kind of heating means and device for roughing sand
CN106475512B (en) * 2016-11-30 2018-09-18 扬州广润机械有限公司 A kind of casting finished sand sand storage bin Pneumatic block clearing device and its application method
CN110899159B (en) * 2019-11-29 2021-03-19 含山县兴达球墨铸铁厂 Casting die bottom plate casting gate clearance mechanism
CN111531122A (en) * 2020-05-13 2020-08-14 安徽华颂再生资源回收有限公司 Powerful rubbing and grinding regenerator for waste molding sand
CN113333434B (en) * 2021-05-13 2022-12-13 洛阳易普特智能科技有限公司 Broken gathering machine of production magnetic material sand mould

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7201998A (en) † 1972-02-16 1973-08-20
US4620586A (en) * 1977-03-23 1986-11-04 General Kinematics Method and apparatus for reclaiming foundry sand
JPS5653867A (en) † 1979-10-03 1981-05-13 Sanken Sangyo Kk Method and device for shaking out sand from aluminum casting prepared in sand core
IT1188886B (en) † 1980-12-24 1988-01-28 Fata Europ Group CALCINATION OVEN WITH A FLUIDIZED BED PARTICULARLY FOR THE RECOVERY OF SANDS USED IN FOUNDRY SHAPES AND SOULS
JPS5825860A (en) † 1981-08-10 1983-02-16 Nippon Furnace Kogyo Kaisha Ltd Method and device for heating of casting
IT1155658B (en) * 1982-03-23 1987-01-28 Fata Ind Spa SYSTEM AND METHOD FOR THE RECOVERY OF SANDS CONTAINED IN FOUNDRY SHAPES AND SOULS BY CALCINATION IN A FLUIDIZED BED OVEN
EP0122029B1 (en) † 1983-03-09 1988-07-27 Cosworth Research And Development Limited Casting metal and reclaiming foundry sand
JPS59219410A (en) † 1983-05-27 1984-12-10 Trinity Ind Corp Heat treating device of sand mold casting
DE3400648A1 (en) * 1984-01-11 1985-07-18 Delta Engineering Beratung und Vermittlung Gesellschaft mbH, Irdning DEVICE AND METHOD FOR REGENERATING FOUNDRY SCRAP
US4952246A (en) * 1989-08-23 1990-08-28 Dependable Foundry Equipment Company, Inc. Plant and method for reconditioning green foundry sand
DE4109993A1 (en) * 1991-03-27 1992-10-01 Klein Alb Gmbh Co Kg METHOD FOR REGENERATING PUMP FROM COATED GRAIN, IN PARTICULAR FROM FOUNDRY SAND
EP0546210B2 (en) * 1991-05-24 2003-07-09 Consolidated Engineering Company, Inc. Method and apparatus for heat treating metal castings

Also Published As

Publication number Publication date
CN1097662A (en) 1995-01-25
DE69318000T3 (en) 2005-07-21
ES2114039T5 (en) 2005-06-01
AU677774B2 (en) 1997-05-08
TW213490B (en) 1993-09-21
CN1090066C (en) 2002-09-04
MX9302659A (en) 1994-02-28
JPH07506299A (en) 1995-07-13
EP0612276B1 (en) 1998-04-15
EP0612276B2 (en) 2004-11-17
CA2121047A1 (en) 1994-03-03
BR9305607A (en) 1995-06-13
ES2114039T3 (en) 1998-05-16
EP0612276A4 (en) 1995-08-23
DE69318000D1 (en) 1998-05-20
JPH11129055A (en) 1999-05-18
AU3594693A (en) 1994-03-15
WO1994004297A1 (en) 1994-03-03
JP2849213B2 (en) 1999-01-20
EP0612276A1 (en) 1994-08-31
CA2121047C (en) 1998-01-06
KR100263975B1 (en) 2000-09-01
DE69318000T2 (en) 1998-12-24

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