GB1479504A - Method for making disposable model for precision investment casting - Google Patents

Method for making disposable model for precision investment casting

Info

Publication number
GB1479504A
GB1479504A GB4104074A GB4104074A GB1479504A GB 1479504 A GB1479504 A GB 1479504A GB 4104074 A GB4104074 A GB 4104074A GB 4104074 A GB4104074 A GB 4104074A GB 1479504 A GB1479504 A GB 1479504A
Authority
GB
United Kingdom
Prior art keywords
moulding
naphthalene
model
investment casting
disposable
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
GB4104074A
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Publication of GB1479504A publication Critical patent/GB1479504A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • B22C7/023—Patterns made from expanded plastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

1479504 Moulding disposable investment casting patterns KUBOTA Ltd 20 Sept 1974 [20 Sept 1973] 41040/74 Heading B5A [Also in Division C3] A moulding material for the production of disposable investment cores comprises either (a) a major proportion of naphthalene or pdichlorobenzene or (b) a major proportion of a mixture of naphthalene or p-dichlorobenzene and a wax; the material is cast at a temperature of 150‹ C. or below, preferably at a speed of 5-0À1 kg./s. The moulding material may additionally comprise a resin such as polystyrene, polyethylene or polyvinyl acetate, in a minor amount. In an example, a mould for a gas turbine blade is formed by moulding a disposable model from naphthalene (100 parts) and polystyrene (1 part) and then investing the model with a slurry of colloidal silica and fused silica flour to give a silica shell 7 mm. thick.
GB4104074A 1973-09-20 1974-09-20 Method for making disposable model for precision investment casting Expired GB1479504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10736973A JPS528248B2 (en) 1973-09-20 1973-09-20

Publications (1)

Publication Number Publication Date
GB1479504A true GB1479504A (en) 1977-07-13

Family

ID=14457334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4104074A Expired GB1479504A (en) 1973-09-20 1974-09-20 Method for making disposable model for precision investment casting

Country Status (4)

Country Link
JP (1) JPS528248B2 (en)
CH (1) CH604954A5 (en)
FR (1) FR2244584B1 (en)
GB (1) GB1479504A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329379A1 (en) * 1975-10-27 1977-05-27 Yates Mfg Thermoplastic foundry pattern compsn. - contg. wax or (co)polystyrene and isopropylidene diphenol to improve dimensional stability
US4064083A (en) * 1976-06-28 1977-12-20 Precision Metalsmiths, Inc. Pattern material composition
JPS5344427A (en) * 1976-10-05 1978-04-21 Kubota Ltd Method to manufacture propellers by using extinguishable pattern
JPS62145296U (en) * 1986-03-08 1987-09-12

Also Published As

Publication number Publication date
DE2444874B2 (en) 1975-07-31
DE2444874A1 (en) 1975-04-24
JPS5057025A (en) 1975-05-19
CH604954A5 (en) 1978-09-15
FR2244584B1 (en) 1978-04-28
FR2244584A1 (en) 1975-04-18
JPS528248B2 (en) 1977-03-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee