GB902878A - Improvements in or relating to foundry core oils - Google Patents

Improvements in or relating to foundry core oils

Info

Publication number
GB902878A
GB902878A GB717859A GB717859A GB902878A GB 902878 A GB902878 A GB 902878A GB 717859 A GB717859 A GB 717859A GB 717859 A GB717859 A GB 717859A GB 902878 A GB902878 A GB 902878A
Authority
GB
United Kingdom
Prior art keywords
oil
blown
composition
added
weight
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
GB717859A
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.)
G E SMITH Inc
Original Assignee
G E SMITH Inc
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 G E SMITH Inc filed Critical G E SMITH Inc
Priority to GB717859A priority Critical patent/GB902878A/en
Publication of GB902878A publication Critical patent/GB902878A/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
    • B22C1/24—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 of oily or fatty substances; of distillation residues therefrom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

An oil composition suitable for use as a foundry core oil comprises (a) a blown nonconjugated bonded drying oil, preferably linseed oil blown with an oxygen-containing gas, and (b) a conjugate bonded drying oil, preferably tung or oiticica oil, the composition having an iodine number not less than 100 and a diene number not less than 7 and most suitably 7-8. Generally the blown linseed oil comprises 75-90% by weight and a preferred composition comprises by weight 90 parts air-blown linseed oil and 10 parts oiticica oil Before mixing with the core-forming material, e.g. sand, the composition is preferably partially polymerized by heating, accelerators such as chlorites, metallic oxides or lead acetate suitably being added. Cobalt and lead drying agents, e.g. the metals or the naphthenates may also be added. Specification 785,726 is referred to.
GB717859A 1959-03-02 1959-03-02 Improvements in or relating to foundry core oils Expired GB902878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB717859A GB902878A (en) 1959-03-02 1959-03-02 Improvements in or relating to foundry core oils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB717859A GB902878A (en) 1959-03-02 1959-03-02 Improvements in or relating to foundry core oils

Publications (1)

Publication Number Publication Date
GB902878A true GB902878A (en) 1962-08-09

Family

ID=9828101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB717859A Expired GB902878A (en) 1959-03-02 1959-03-02 Improvements in or relating to foundry core oils

Country Status (1)

Country Link
GB (1) GB902878A (en)

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