ES386024A1 - Methods of making shell-moulded articles and apparatus therefor - Google Patents

Methods of making shell-moulded articles and apparatus therefor

Info

Publication number
ES386024A1
ES386024A1 ES386024A ES386024A ES386024A1 ES 386024 A1 ES386024 A1 ES 386024A1 ES 386024 A ES386024 A ES 386024A ES 386024 A ES386024 A ES 386024A ES 386024 A1 ES386024 A1 ES 386024A1
Authority
ES
Spain
Prior art keywords
mold
bed
fluidizing gas
permeability
methods
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
ES386024A
Other languages
Spanish (es)
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.)
Polygram Casting Co Ltd
Original Assignee
Polygram Casting Co Ltd
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 Polygram Casting Co Ltd filed Critical Polygram Casting Co Ltd
Publication of ES386024A1 publication Critical patent/ES386024A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C23/00—Tools; Devices not mentioned before for moulding

Abstract

Method for the production of articles in sheath molds, characterized in that it comprises the operations of passing a fluidizing gas through a bed of refractory granular material to fluidize it; reduce, with respect to the permeability of the fluidized bed, the permeability of the sheath mold to the fluidizing gas, to a value sufficiently lower than the permeability of the fluidized bed, to ensure that the gas does not pass, in any substantial volume, through of the mold preferably as it passes through the bed; immerse the mold in the bed to such a depth that, when the fluidized bed sinks, the mold is supported by the refractory material, with the descending sprue of the mold, or each one, separated from the surface of the material; sinking the bed by stopping the passage of fluidizing gas through it; empty the mold; reestablish the passage of fluidizing gas through the refractory material to fluidize it and remove the emptied mold from the bed. (Machine-translation by Google Translate, not legally binding)
ES386024A 1969-12-01 1970-11-30 Methods of making shell-moulded articles and apparatus therefor Expired ES386024A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5865769 1969-12-01

Publications (1)

Publication Number Publication Date
ES386024A1 true ES386024A1 (en) 1973-02-16

Family

ID=10482120

Family Applications (1)

Application Number Title Priority Date Filing Date
ES386024A Expired ES386024A1 (en) 1969-12-01 1970-11-30 Methods of making shell-moulded articles and apparatus therefor

Country Status (9)

Country Link
JP (1) JPS4940333B1 (en)
AU (1) AU2282370A (en)
BE (1) BE759700A (en)
CA (1) CA942474A (en)
DE (1) DE2058842A1 (en)
DK (1) DK126761B (en)
ES (1) ES386024A1 (en)
FR (1) FR2100607B1 (en)
GB (1) GB1336714A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5641044A (en) * 1979-09-10 1981-04-17 Dependable Fordath Inc Method of casting sheel mold
GB2148760B (en) * 1983-10-27 1988-01-27 Bsa Foundries Limited Casting metal in a sand backed shell mould

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985929A (en) * 1959-12-18 1961-05-30 Richard T Carter Method and apparatus for support and cooling of shell molds
US3222738A (en) * 1963-04-18 1965-12-14 Richard T Carter Methods of removing expendable plastic patterns

Also Published As

Publication number Publication date
BE759700A (en) 1971-05-17
DE2058842A1 (en) 1971-06-09
FR2100607B1 (en) 1974-03-22
GB1336714A (en) 1973-11-07
CA942474A (en) 1974-02-26
FR2100607A1 (en) 1972-03-24
JPS4940333B1 (en) 1974-11-01
AU2282370A (en) 1972-06-01
DK126761B (en) 1973-08-20

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