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GB1413027A - Manufacture of foundry moulds and cores - Google Patents

Manufacture of foundry moulds and cores

Info

Publication number
GB1413027A
GB1413027A GB4159373A GB4159373A GB1413027A GB 1413027 A GB1413027 A GB 1413027A GB 4159373 A GB4159373 A GB 4159373A GB 4159373 A GB4159373 A GB 4159373A GB 1413027 A GB1413027 A GB 1413027A
Authority
GB
United Kingdom
Prior art keywords
acid
resin
phenol
sand
acid catalyst
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
GB4159373A
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.)
TSNIITMASH
Original Assignee
TSNIITMASH
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 TSNIITMASH filed Critical TSNIITMASH
Priority to GB4159373A priority Critical patent/GB1413027A/en
Publication of GB1413027A publication Critical patent/GB1413027A/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
    • B22C1/205—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 organic silicon or metal compounds, other organometallic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

1413027 Foundry sand TSENTRALNY NAUCHNO - ISSLEDOVATELSKY INSTITUT TEKHNOLOGII MASHINOSTROENIA 4 Sept 1973 41593/73 Heading C3N A foundry moulding mixture comprises sand, a phenol, aldehyde resin binder, an acid catalyst, and a phenoxyalkylalkoxysilane, e.g. in an amount 0À1-1% by weight of the resin, having the formula wherein X is H, alkyl, alkoxy or -O(CH 2 ) n Si(OR) 3 where n is 2 or 3 and R is C 1-4 alkyl. Suitable phenoxyalkylalkoxysilanes are γ-phenoxypropyltriethoxysilane, γ - orthomethylphenoxypropyltriethoxysilane, γ - ortho - ethoxyphenoxypropyltriethoxysilane and di - γ- triethoxysilylpropyl resorcinol ether. The resin binder may be a phenol formaldehyde, resorcinol formaldehyde, phenol furfural or furyl phenol formaldehyde synthetic resin. The acid catalyst may be p-toluenesulphonic acid, benzenesulphonic acid or p-chlorobenzenesulphonic acid. The silane may be added into the resin at ambient temperature or preheated to 50- 60‹ C. The sand may contain up to 0À5% by weight of clay and admixtures of alkalies, carbonates and bicarbonates which are capable of reacting with the acid catalyst. A comparative example making use of γ-aminopropyltriethoxysilane is also present.
GB4159373A 1973-09-04 1973-09-04 Manufacture of foundry moulds and cores Expired GB1413027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4159373A GB1413027A (en) 1973-09-04 1973-09-04 Manufacture of foundry moulds and cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4159373A GB1413027A (en) 1973-09-04 1973-09-04 Manufacture of foundry moulds and cores

Publications (1)

Publication Number Publication Date
GB1413027A true GB1413027A (en) 1975-11-05

Family

ID=10420414

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4159373A Expired GB1413027A (en) 1973-09-04 1973-09-04 Manufacture of foundry moulds and cores

Country Status (1)

Country Link
GB (1) GB1413027A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908254A1 (en) * 1996-06-25 1999-04-14 Kao Corporation Caking additive composition for forming self-hardening mold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0908254A1 (en) * 1996-06-25 1999-04-14 Kao Corporation Caking additive composition for forming self-hardening mold
EP0908254A4 (en) * 1996-06-25 2009-01-14 Kao Corp Caking additive composition for forming self-hardening mold

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Legal Events

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