GB819391A - Improvements in or relating to shell moulding - Google Patents

Improvements in or relating to shell moulding

Info

Publication number
GB819391A
GB819391A GB9413/57A GB941357A GB819391A GB 819391 A GB819391 A GB 819391A GB 9413/57 A GB9413/57 A GB 9413/57A GB 941357 A GB941357 A GB 941357A GB 819391 A GB819391 A GB 819391A
Authority
GB
United Kingdom
Prior art keywords
pattern
mix
mould
heated
sodium
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
GB9413/57A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor 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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB819391A publication Critical patent/GB819391A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/18—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents
    • B22C1/186—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents contaming ammonium or metal silicates, silica sols
    • B22C1/188—Alkali metal silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/167—Mixtures of inorganic and organic binding agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C23/00—Tools; Devices not mentioned before for moulding

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mold Materials And Core Materials (AREA)
  • Working-Up Tar And Pitch (AREA)

Abstract

819,391. Mould materials. FORD MOTOR CO. Ltd. March 22, 1957 [May 7, 1956], No. 9413/57. Class 83 (1). A shell-moulding-method comprises the use of sodium-silicate as a binder, the mix being placed against a heated pattern and heated to a temperature of 400-550‹ F. The mix may be blown between the hot pattern and a hot back-up plate, or on to the pattern. The pattern is preferably heated to a temperature of 250- 550‹ F. to obviate the necessity for a parting medium, since at such temperatures the water in the mould mix boils out and forms a vapourcushion between the mould and the pattern. Inhibitors such as basic-metal salts, zinc oxide, potassium and sodium fluosilicates may be added to decrease the effect of humidity on tensile strength during storage. Up to 2 per cent of organics, such as coal tar, pitch, sea coal and asphalt to improve the green strength &c., and an oil lubricant such as 1/3 per cent of kerosene or soya-bean oil, may be added.
GB9413/57A 1956-05-07 1957-03-22 Improvements in or relating to shell moulding Expired GB819391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US819391XA 1956-05-07 1956-05-07

Publications (1)

Publication Number Publication Date
GB819391A true GB819391A (en) 1959-09-02

Family

ID=22167370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9413/57A Expired GB819391A (en) 1956-05-07 1957-03-22 Improvements in or relating to shell moulding

Country Status (1)

Country Link
GB (1) GB819391A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1508734B1 (en) * 1965-06-02 1972-03-09 Tsnii Technologii Mash Liquid self-curing mixture for the production of molds and mold cores
US4050500A (en) * 1976-03-15 1977-09-27 Eaton Corporation Method of making a shell mold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1508734B1 (en) * 1965-06-02 1972-03-09 Tsnii Technologii Mash Liquid self-curing mixture for the production of molds and mold cores
US4050500A (en) * 1976-03-15 1977-09-27 Eaton Corporation Method of making a shell mold

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