EP0546210B2 - Method and apparatus for heat treating metal castings - Google Patents

Method and apparatus for heat treating metal castings Download PDF

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Publication number
EP0546210B2
EP0546210B2 EP19910121229 EP91121229A EP0546210B2 EP 0546210 B2 EP0546210 B2 EP 0546210B2 EP 19910121229 EP19910121229 EP 19910121229 EP 91121229 A EP91121229 A EP 91121229A EP 0546210 B2 EP0546210 B2 EP 0546210B2
Authority
EP
European Patent Office
Prior art keywords
casting
furnace
sand
sand core
portions
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 - Lifetime
Application number
EP19910121229
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0546210A1 (en
EP0546210B1 (en
Inventor
Scott P. Crafton
Paul M. Crafton
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24834291&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0546210(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Consolidated Engineering Co Inc filed Critical Consolidated Engineering Co Inc
Priority to DE1991627822 priority Critical patent/DE69127822T3/de
Priority to AT91121229T priority patent/ATE158733T1/de
Publication of EP0546210A1 publication Critical patent/EP0546210A1/en
Application granted granted Critical
Publication of EP0546210B1 publication Critical patent/EP0546210B1/en
Publication of EP0546210B2 publication Critical patent/EP0546210B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • An apparatus and a method for heat treating metal castings of the above-referenced type are known from JP-A-58-25860, upon which the preambles of claims 1 and 19 are based, and JP-A-59-219410.
  • methods and apparatus for manufacturing hollow metal castings such as cylinder heads, engine blocks, and the like are well known.
  • Conventional prior art processes for manufacturing aluminum castings typically employ a cast iron "flask-type" mold having the exterior features of the block formed on the interior walls of the mold.
  • a sand core, premolded from a mixture of sand and an organic binder and having interior features of the casting formed on by its exterior surface, is placed within the mold. The mold is then filled with molten aluminum alloy.
  • Fig. 1 shows an apparatus 10 for heat-treating and aging metal castings according to the present invention.
  • the metal castings are cylinder heads which are cast from an aluminum alloy in a conventional manner.
  • the casting process is well known to those skilled in the art and comprises no part of the present invention. Accordingly, the casting process will be described only briefly.
  • the quench tank 12 At the downline end of the heat treating furnace is the quench tank 12.
  • the capacity of the quench tank 12 is a function of the size and number of workpieces being immersed at a single time, the specific heat of the alloy comprising the workpieces, and the temperature to which the workpieces have been heated.
  • the quench tank 12 should hold sufficient water that the immersion of a load of workpieces into the tank will raise the temperature of the water by no more than 10°F. In the disclosed embodiment, this requirement is met by a quench tank 12 having a capacity of 4,000 gallons of water.
  • the vibratory sand dryer 80 is of conventional design and therefore is shown in the drawings only schematically.
  • the sand dryer 80 includes a vibrating, rotating 150 mesh screen which permits water but not particulate matter larger than 150 mesh to pass through the screen. Particulate matter too large to pass through the screen openings is vibrated off onto the sand conveyor 59 . Water which passes through the screen falls into a collector beneath the screen. The collector in turn is in fluid communication with a 30 gallon holding tank, which is periodically emptied into the quench tank 12 .
  • the burners 18 are not adjusted to provide the excessive amount of air required by zones 16B and 16C . Since there is not the excessive amount of air which must be heated, the burners in those zones where less combustion occurs can operate more efficiently than if the higher volume of air were provided to all zones of the furnace.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Furnace Details (AREA)
  • Control Of Heat Treatment Processes (AREA)
EP19910121229 1991-05-24 1991-12-11 Method and apparatus for heat treating metal castings Expired - Lifetime EP0546210B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1991627822 DE69127822T3 (de) 1991-12-11 1991-12-11 Verfahren und Vorrichtung zur Wärmebehandlung von Gussstücken
AT91121229T ATE158733T1 (de) 1991-12-11 1991-12-11 Verfahren und vorrichtung zur wärmebehandlung von gussstücken

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70562691A 1991-05-24 1991-05-24

Publications (3)

Publication Number Publication Date
EP0546210A1 EP0546210A1 (en) 1993-06-16
EP0546210B1 EP0546210B1 (en) 1997-10-01
EP0546210B2 true EP0546210B2 (en) 2003-07-09

Family

ID=24834291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910121229 Expired - Lifetime EP0546210B2 (en) 1991-05-24 1991-12-11 Method and apparatus for heat treating metal castings

Country Status (9)

Country Link
EP (1) EP0546210B2 (ja)
JP (2) JP2620027B2 (ja)
KR (1) KR970005373B1 (ja)
AU (2) AU663088B2 (ja)
BR (1) BR9206048A (ja)
CA (1) CA2103136C (ja)
ES (1) ES2107438T5 (ja)
MX (1) MX9202441A (ja)
WO (1) WO1992020478A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014110826A1 (de) 2014-07-30 2016-02-04 Fritz Winter Eisengiesserei Gmbh & Co. Kg Verfahren zum Gießen von Gussteilen

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU677774B2 (en) * 1992-08-13 1997-05-08 Consolidated Engineering Company, Inc. Heat treatment of metal castings and integrated sand reclamation
US5439045A (en) * 1994-01-19 1995-08-08 Consolidated Engineering Company, Inc. Method of heat treating metal castings, removing cores, and incinerating waste gasses
DE19524176C1 (de) * 1995-07-03 1996-09-26 Daimler Benz Ag Verfahren zum Zwischenabschrecken von aus einem Lösungs-Glühofen kommenden Leichtmetall-Gußstücken
US5924473A (en) * 1996-12-20 1999-07-20 General Kinematics Corporation Vibratory sand reclamation system
US5901775A (en) * 1996-12-20 1999-05-11 General Kinematics Corporation Two-stage heat treating decoring and sand reclamation system
US6453982B1 (en) 1996-12-20 2002-09-24 General Kinematics Corporation Sand cleaning apparatus
US6217317B1 (en) * 1998-12-15 2001-04-17 Consolidated Engineering Company, Inc. Combination conduction/convection furnace
US6336809B1 (en) 1998-12-15 2002-01-08 Consolidated Engineering Company, Inc. Combination conduction/convection furnace
EP1010484A3 (en) * 1998-12-15 2000-06-28 Consolidated Engineering Company, Inc. Combination conduction/convection furnace
US6910522B2 (en) 1999-07-29 2005-06-28 Consolidated Engineering Company, Inc. Methods and apparatus for heat treatment and sand removal for castings
US6672367B2 (en) * 1999-07-29 2004-01-06 Consolidated Engineering Company, Inc. Methods and apparatus for heat treatment and sand removal for castings
ATE397986T1 (de) * 1999-07-29 2008-07-15 Cons Eng Co Inc Wärmebehandlung und sandentfernung von gussteilen
US6622775B2 (en) 2000-05-10 2003-09-23 Consolidated Engineering Company, Inc. Method and apparatus for assisting removal of sand moldings from castings
CN1325207C (zh) * 2000-07-27 2007-07-11 联合工程公司 帮助从铸件上除去砂型的方法
MXPA05001393A (es) * 2002-08-08 2005-04-28 Cons Eng Co Inc Metodos y aparatos para el tratamiento con calor y remocion de arena para fundiciones.
DE10352180B4 (de) * 2003-11-05 2006-03-02 Dihag Deutsche Giesserei- Und Industrie-Holding Ag Gießverfahren zur Herstellung eines Gußteils
US20060103059A1 (en) * 2004-10-29 2006-05-18 Crafton Scott P High pressure heat treatment system
KR20060089060A (ko) * 2005-02-03 2006-08-08 현대자동차주식회사 주조품의 열처리 장치 및 그 방법
RU2635598C2 (ru) 2013-09-04 2017-11-14 Немак, С.А.Б. Де К.В. Способ извлечения из формы для литья литой заготовки, отлитой из лёгкого сплава
EP3289111B1 (en) 2015-04-28 2021-06-02 Consolidated Engineering Company, Inc. System and method for heat treating aluminum alloy castings
CN109175318A (zh) * 2018-09-29 2019-01-11 芜湖福马汽车零部件有限公司 空压机铸件的冷却装置
CN109202048B (zh) * 2018-09-30 2020-07-31 含山县全兴内燃机配件有限公司 一种提高发动机球墨铸铁气缸盖加工冷水罐稳定性装置
CN109434084B (zh) * 2018-09-30 2020-07-31 含山县全兴内燃机配件有限公司 一种船用柴油机气缸盖生产用喷洒降温式冷水罐

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7201998A (ja) * 1972-02-16 1973-08-20
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
JPS604262B2 (ja) * 1981-02-21 1985-02-02 マツダ株式会社 アルミニウム合金製鋳物の製造法
JPS5825860A (ja) * 1981-08-10 1983-02-16 Nippon Furnace Kogyo Kaisha Ltd 鋳造品の加熱方法と装置
US4415444A (en) * 1981-10-08 1983-11-15 General Kinematics Corporation Air cooling system for a vibratory sand reclaiming apparatus
US4955425A (en) * 1988-09-19 1990-09-11 Mckenna James F Casting handling apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014110826A1 (de) 2014-07-30 2016-02-04 Fritz Winter Eisengiesserei Gmbh & Co. Kg Verfahren zum Gießen von Gussteilen
US9890439B2 (en) 2014-07-30 2018-02-13 Fritz Winter Eisengiesserei Gmbh & Co. Kg Method for casting cast parts
EP3597329A1 (de) 2014-07-30 2020-01-22 Fritz Winter Eisengiesserei GmbH & Co. KG Verfahren zum giessen von gussteilen

Also Published As

Publication number Publication date
MX9202441A (es) 1992-11-01
KR970005373B1 (ko) 1997-04-15
JPH06507839A (ja) 1994-09-08
WO1992020478A1 (en) 1992-11-26
EP0546210A1 (en) 1993-06-16
JPH08224656A (ja) 1996-09-03
CA2103136C (en) 1997-12-23
ES2107438T3 (es) 1997-12-01
CA2103136A1 (en) 1992-11-25
AU690776B2 (en) 1998-04-30
AU1906292A (en) 1992-12-30
ES2107438T5 (es) 2004-04-01
BR9206048A (pt) 1994-12-20
EP0546210B1 (en) 1997-10-01
JP2620027B2 (ja) 1997-06-11
JP2851574B2 (ja) 1999-01-27
AU663088B2 (en) 1995-09-28
AU4076395A (en) 1996-03-21

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