GB725456A - Improvements relating to the production of shell moulds for casting - Google Patents

Improvements relating to the production of shell moulds for casting

Info

Publication number
GB725456A
GB725456A GB8898/53A GB889853A GB725456A GB 725456 A GB725456 A GB 725456A GB 8898/53 A GB8898/53 A GB 8898/53A GB 889853 A GB889853 A GB 889853A GB 725456 A GB725456 A GB 725456A
Authority
GB
United Kingdom
Prior art keywords
mould
oxidizing atmosphere
resin
casting
production
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
GB8898/53A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation 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
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB725456A publication Critical patent/GB725456A/en
Expired 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

Abstract

In a method of preparing a sand-resin mould or core, the volatiles are driven off from the mould or core prior to pouring operations by heating it in a non-oxidizing atmosphere. Preferably the mould is heated for 1/4 to 1 1/2 hours at a temperature of from 300 DEG F. to 1400 DEG F., in an atmosphere of natural gas, methane, carbon monoxide, or helium. Alternatively the volatiles driven from the resin binder function as a non-oxidizing atmosphere. The heating in the non-oxidizing atmosphere is preferably carried out after the mould is stripped from the pattern plate after curing by baking in contact with the pattern plate, but alternatively the normal air curing step is replaced by baking the mould in the non-oxidizing atmosphere while in contact with the pattern. Phenol formaldehyde and melamine formaldehyde are quoted as examples of resin binders.
GB8898/53A 1952-05-09 1953-03-31 Improvements relating to the production of shell moulds for casting Expired GB725456A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US725456XA 1952-05-09 1952-05-09

Publications (1)

Publication Number Publication Date
GB725456A true GB725456A (en) 1955-03-02

Family

ID=22108287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8898/53A Expired GB725456A (en) 1952-05-09 1953-03-31 Improvements relating to the production of shell moulds for casting

Country Status (1)

Country Link
GB (1) GB725456A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2886869A (en) * 1956-08-01 1959-05-19 John M Webb Graphite refractory molds and method of making same
US2903761A (en) * 1956-07-23 1959-09-15 Sirmay Emil Starn Permanent pre-cast mold
US2935772A (en) * 1957-04-03 1960-05-10 Shaw Process Dev Corp Prevention of scale formation on castings
US5617912A (en) * 1904-04-14 1997-04-08 Ballewski; Heinrich Process for preparing and using a ceramic shell as a casting mold with reducing properties
WO2001062413A2 (en) * 2000-02-23 2001-08-30 Sandor Cser Method for production of an oxidation inhibiting titanium casting mould

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5617912A (en) * 1904-04-14 1997-04-08 Ballewski; Heinrich Process for preparing and using a ceramic shell as a casting mold with reducing properties
US2903761A (en) * 1956-07-23 1959-09-15 Sirmay Emil Starn Permanent pre-cast mold
US2886869A (en) * 1956-08-01 1959-05-19 John M Webb Graphite refractory molds and method of making same
US2935772A (en) * 1957-04-03 1960-05-10 Shaw Process Dev Corp Prevention of scale formation on castings
WO2001062413A2 (en) * 2000-02-23 2001-08-30 Sandor Cser Method for production of an oxidation inhibiting titanium casting mould
WO2001062413A3 (en) * 2000-02-23 2002-03-21 Sandor Cser Method for production of an oxidation inhibiting titanium casting mould
US6802358B2 (en) 2000-02-23 2004-10-12 Sandor Cser Method for production of an oxidation inhibiting titanium casting mould

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