GB742361A - Improved process for making moulds for "cire-perdue" precision casting - Google Patents

Improved process for making moulds for "cire-perdue" precision casting

Info

Publication number
GB742361A
GB742361A GB17347/52A GB1734752A GB742361A GB 742361 A GB742361 A GB 742361A GB 17347/52 A GB17347/52 A GB 17347/52A GB 1734752 A GB1734752 A GB 1734752A GB 742361 A GB742361 A GB 742361A
Authority
GB
United Kingdom
Prior art keywords
solution
salt
perdue
cire
precoated
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
GB17347/52A
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Publication of GB742361A publication Critical patent/GB742361A/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
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
    • 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

742,361. Moulding processes. REGIE NATIONALE DES USINES RENAULT. July 9, 1952 [Aug. 30, 1951], No. 17347/52. Class 83 (1). A wax pattern precoated with a refractory powder in a solution of alkaline silicate is rendered insoluble, before investing with a mixture of sand, binder and water, by treating with a solution of a volatilizable acid, or a salt of ammonium, or of a weak organic base which is easily hydrolysable, in a solvent which does not dissolve the alkaline silicate. The substance should leave no residue on heating and may comprise a salt of a weak base, e.g. hydrochloric acid in equal parts of ethyl alcohol and water, or ammonium nitrate in methyl alcohol. Acetic, oxalic and nitric acids are also mentioned. The solution is applied to the dried precoated pattern by spraying or dipping.
GB17347/52A 1951-08-30 1952-07-09 Improved process for making moulds for "cire-perdue" precision casting Expired GB742361A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1041944T 1951-08-30

Publications (1)

Publication Number Publication Date
GB742361A true GB742361A (en) 1955-12-21

Family

ID=9589750

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17347/52A Expired GB742361A (en) 1951-08-30 1952-07-09 Improved process for making moulds for "cire-perdue" precision casting

Country Status (3)

Country Link
BE (1) BE511807A (en)
FR (1) FR1041944A (en)
GB (1) GB742361A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945273A (en) * 1957-04-25 1960-07-19 Herzmark Casting mold and method of preparation
US3186041A (en) * 1961-11-14 1965-06-01 Prec Metalsmiths Inc Ceramic shell mold and method of forming same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945273A (en) * 1957-04-25 1960-07-19 Herzmark Casting mold and method of preparation
US3186041A (en) * 1961-11-14 1965-06-01 Prec Metalsmiths Inc Ceramic shell mold and method of forming same

Also Published As

Publication number Publication date
BE511807A (en)
FR1041944A (en) 1953-10-27

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