GB837207A - Molding composition and method of producing same - Google Patents

Molding composition and method of producing same

Info

Publication number
GB837207A
GB837207A GB25013/56A GB2501356A GB837207A GB 837207 A GB837207 A GB 837207A GB 25013/56 A GB25013/56 A GB 25013/56A GB 2501356 A GB2501356 A GB 2501356A GB 837207 A GB837207 A GB 837207A
Authority
GB
United Kingdom
Prior art keywords
grams
agents
water
composition
sugar
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
GB25013/56A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB837207A publication Critical patent/GB837207A/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
    • B22C1/20—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 organic agents

Abstract

A plastic composition for preparing expendable moulds for use in the casting of titanium and its alloys, and other refractory metals, comprises a major portion of carbonaceous, refractory particles, e.g. graphite or amorphous carbon; one or more temporary carbohydrate binding agents, e.g. maize, rice, wheat or barley starch, dextrin, or sugar; one or more permanent carbonaceous binding agents, e.g. coal tar, asphalt, or a vegetable oil pitch; a surface active agent, e.g. an amine salt of a sulphated aliphatic alcohol containing from 8 to 20 carbon atoms; and water. The temporary binding agent or agents is or are destroyed when the composition is fired. In one Example the composition comprises 400 grams graphite powder, 56 grams electrode joint cement (a mixture of graphite powder, sugar, and water), 80 grams ground coal tar pitch, 80 grams maize starch, 6 grams N, N diethyl cyclohexylamine salt of sulphated lauryl alcohol, and 146 grams tap water. Several alternative surface active agents are specified.
GB25013/56A 1955-10-19 1956-08-15 Molding composition and method of producing same Expired GB837207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US837207XA 1955-10-19 1955-10-19

Publications (1)

Publication Number Publication Date
GB837207A true GB837207A (en) 1960-06-09

Family

ID=22180245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25013/56A Expired GB837207A (en) 1955-10-19 1956-08-15 Molding composition and method of producing same

Country Status (1)

Country Link
GB (1) GB837207A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2176718A1 (en) * 1972-03-17 1973-11-02 Titech International

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2176718A1 (en) * 1972-03-17 1973-11-02 Titech International

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