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WO1999043456A3 - Heater for gaseous substances and core production with such a heater - Google Patents

Heater for gaseous substances and core production with such a heater Download PDF

Info

Publication number
WO1999043456A3
WO1999043456A3 PCT/GB1999/000401 GB9900401W WO9943456A3 WO 1999043456 A3 WO1999043456 A3 WO 1999043456A3 GB 9900401 W GB9900401 W GB 9900401W WO 9943456 A3 WO9943456 A3 WO 9943456A3
Authority
WO
WIPO (PCT)
Prior art keywords
heater
gaseous
mixture
chamber
shaped mixture
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.)
Ceased
Application number
PCT/GB1999/000401
Other languages
French (fr)
Other versions
WO1999043456A2 (en
Inventor
Dean Anthony Jones
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.)
Individual
Original Assignee
Individual
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
Priority claimed from GBGB9802668.5A external-priority patent/GB9802668D0/en
Priority claimed from GBGB9827244.6A external-priority patent/GB9827244D0/en
Application filed by Individual filed Critical Individual
Priority to AU25304/99A priority Critical patent/AU2530499A/en
Publication of WO1999043456A2 publication Critical patent/WO1999043456A2/en
Publication of WO1999043456A3 publication Critical patent/WO1999043456A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • B22C9/123—Gas-hardening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

Apparatus for use in the production in a core box of a casting core from a shaped mixture of sand, resin and solvent, said apparatus comprising a chamber to house the shaped mixture, said chamber having inlet means for gaseous material, and further comprising supply means to supply said inlet means of the chamber with firstly - and from a first heater - a gaseous curing mixture at a first temperature and, thereafter - from a second heater - with a flow of gas (e.g. air) at a second and elevated temperature to scavenge and/or drive out solvent in gaseous form from the shaped mixture and/or from the chamber. Each of the first and second heaters comprises a plurality of gas conduits in series with one another and arranged as a plurality of loops in the form of coils to provide in use a generally spiral gas path, and a plurality of electric heater elements within at least some of said gas conduits to provide for progressive temperature increase in gaseous material flowing from one conduit with heat element therein to the next. The gaseous curing mixture is pre-warmed prior to its admixture with the TEA and, in addition, said TEA and air, as a gaseous mixture, is heated by said first heater prior to passage to the shaped mixture to be cured.
PCT/GB1999/000401 1998-02-10 1999-02-09 Heater for gaseous substances and core production with such a heater Ceased WO1999043456A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25304/99A AU2530499A (en) 1998-02-10 1999-02-09 Heater for gaseous substances and core production with such a heater

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB9802668.5 1998-02-10
GBGB9802668.5A GB9802668D0 (en) 1998-02-10 1998-02-10 A heating system which generates the rise in temperature of the air which is b ing passed through a series of pipework and heaters
GB9806700.2 1998-03-27
GBGB9806700.2A GB9806700D0 (en) 1998-02-10 1998-03-27 Improvements in or relating to heating gaseous substances
GB9827244.6 1998-12-10
GBGB9827244.6A GB9827244D0 (en) 1998-12-10 1998-12-10 Casting core production

Publications (2)

Publication Number Publication Date
WO1999043456A2 WO1999043456A2 (en) 1999-09-02
WO1999043456A3 true WO1999043456A3 (en) 1999-10-28

Family

ID=27269203

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/000401 Ceased WO1999043456A2 (en) 1998-02-10 1999-02-09 Heater for gaseous substances and core production with such a heater

Country Status (4)

Country Link
AU (1) AU2530499A (en)
GB (3) GB2333986B (en)
TW (1) TW394714B (en)
WO (1) WO1999043456A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH695547A5 (en) * 2002-06-17 2006-06-30 Lueber Gmbh Method and apparatus for hardening foundry cores.
CN102189223B (en) * 2011-03-23 2012-12-19 苏州明志科技有限公司 Hybrid gas generator for core-making processes employing organic binder and inorganic binder
CN103357824A (en) * 2013-07-23 2013-10-23 西峡县众德汽车部件有限公司 Iron die sand-coating production technology
CN105108068A (en) * 2015-09-15 2015-12-02 浙江杭机铸造有限公司 Sand mold heating device for metal pattern
CN107511457B (en) * 2017-09-15 2020-01-14 昆明云内动力股份有限公司 Sand core mold, sand core and production method of sand core mold

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH613139A5 (en) * 1976-08-10 1979-09-14 Werner Lueber Generator for the preparation of a catalyst gas for the curing of foundry cores
GB2047510A (en) * 1979-03-08 1980-11-26 Irca Spa Fluid heating
US4359082A (en) * 1979-07-28 1982-11-16 Michel Horst Werner Method and apparatus for hardening mold parts made of sand for making metal castings
US5438642A (en) * 1993-07-13 1995-08-01 Instantaneous Thermal Systems, Inc. Instantaneous water heater

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB745914A (en) * 1953-01-28 1956-03-07 William Helmore Improvements in or relating to heat exchangers
GB1269202A (en) * 1968-02-14 1972-04-06 Fordath Ltd Improvements in the production of cores for use in the production of metal castings
GB1269203A (en) * 1969-05-08 1972-04-06 Fordath Ltd Formerly The Forda Improvements in the production of cores for use in the production of metal castings
GB1411419A (en) * 1971-10-05 1975-10-22 Pont A Mousson Process and apparatus for hardening foudry moulds and cores of sand and resin by gaseous diffusion through the sand
US4257438A (en) * 1978-11-16 1981-03-24 Miller Donald V Bulk catalyst proportioner
US4362204A (en) * 1980-03-17 1982-12-07 The Mead Corporation Method and apparatus for curing a foundry core
DE3422742A1 (en) * 1984-06-19 1985-12-19 Michel, Horst Werner, Dipl.-Ing., 7707 Engen CONTROL FOR A DEVICE FOR CURING SAND CORES AND / OR MOLDS
GB8711167D0 (en) * 1987-05-12 1987-06-17 Bt Sales Serv Ltd Supplying flow of heated air
CH674480A5 (en) * 1987-10-02 1990-06-15 Franz Gaehler
US4878533A (en) * 1988-03-07 1989-11-07 Wear Boyd A Vaporization apparatus and method for producing curing gas
US4952371A (en) * 1989-07-17 1990-08-28 Deere & Company Volatile liquid catalyst handling system including distibution cabinet
DE4318153C1 (en) * 1993-06-01 1994-05-19 Hermann Blachowski Producing sand cores - with gas for hardening the binder fed to moulding box as liq. and vaporised inside box
DE19706472C1 (en) * 1997-02-19 1998-06-04 Metallgesellschaft Ag Foundry core production using tri:methyl-amine catalyst with cost-effective odour control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH613139A5 (en) * 1976-08-10 1979-09-14 Werner Lueber Generator for the preparation of a catalyst gas for the curing of foundry cores
GB2047510A (en) * 1979-03-08 1980-11-26 Irca Spa Fluid heating
US4359082A (en) * 1979-07-28 1982-11-16 Michel Horst Werner Method and apparatus for hardening mold parts made of sand for making metal castings
US5438642A (en) * 1993-07-13 1995-08-01 Instantaneous Thermal Systems, Inc. Instantaneous water heater

Also Published As

Publication number Publication date
AU2530499A (en) 1999-09-15
GB9902924D0 (en) 1999-03-31
TW394714B (en) 2000-06-21
GB2333984A (en) 1999-08-11
GB2333985A (en) 1999-08-11
GB9902922D0 (en) 1999-03-31
GB2333986B (en) 2001-04-04
GB2333986A (en) 1999-08-11
WO1999043456A2 (en) 1999-09-02
GB9902923D0 (en) 1999-03-31

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