GB1171963A - Improvements in or relating to Foundry Moulding Sand Composition - Google Patents

Improvements in or relating to Foundry Moulding Sand Composition

Info

Publication number
GB1171963A
GB1171963A GB2828167A GB2828167A GB1171963A GB 1171963 A GB1171963 A GB 1171963A GB 2828167 A GB2828167 A GB 2828167A GB 2828167 A GB2828167 A GB 2828167A GB 1171963 A GB1171963 A GB 1171963A
Authority
GB
United Kingdom
Prior art keywords
give
moulding sand
foundry
sand composition
june
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
GB2828167A
Inventor
Clive Starr
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.)
British Non Ferrous Metals Research Association
Original Assignee
British Non Ferrous Metals Research Association
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
Priority to GB415265A priority Critical patent/GB1087767A/en
Application filed by British Non Ferrous Metals Research Association filed Critical British Non Ferrous Metals Research Association
Priority to GB2828167A priority patent/GB1171963A/en
Publication of GB1171963A publication Critical patent/GB1171963A/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
    • B22C1/18—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 inorganic agents
    • B22C1/186—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 inorganic agents contaming ammonium or metal silicates, silica sols
    • B22C1/188—Alkali metal silicates
    • 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
    • B22C1/167—Mixtures of inorganic and organic binding agents
    • 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
    • B22C1/26—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 carbohydrates; of distillation residues therefrom

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

1,171,963. Foundry-moulding sand composition. BRITISH NON-FERROUS METALS RESEARCH ASSOCIATION. 19 June, 1968 [19 June, 1967], No. 28281/67. Addition to 1,087,767. Heading C3N. A foundry-moulding sand composition comprises: (a) a particulate refractory material; (b) an aqueous solution of sodium silicate; (c) 0À25-5% wt., based on (a) of an organic material; (d) ferrous sulphate; and (e) a metal fluoride. (a) May be e.g. SiO 2 , ZrSiO 4 , chrome or olivine sand, or sillimanite; (b) preferably has SiO 2 /Na 2 O from 2-3.3, with viscosity 7-120‹ Twaddle; (c) may be dextrin, starch, or a sugar, e.g. sucrose; (d) may be FeSO 4 .7H 2 0; (e) may be CaF 2 . Also present may be > 50% wt. based on (c) of fine CaCO 3 . Based on wt. of (d), there may be 3-5% (b). The compositions may be set by CO 2 and/or heat, e.g. 160- 250‹ C. At the temperatures encountered during casting, # 1300‹ C., (d) decomposes to give Fe 2 O 3 , which oxidizes (c), and to give SO 3 and H 2 SO 4 which react with (e) to give HF which attacks the silicate bonds between the refractory particles. Other oxidizing agents may be present. The (c), (d), and (e) may be premixed, and then mixed with (a), followed by addition of (b). The pre-mix may contain, in wt. per cent, (c) 65-80; (d) 10-20; (e) 10-20. These ingredients may all pass 200 mesh B.S.I. sieve, 0.25% wt., based on (a), of this premix may be used.
GB2828167A 1965-01-29 1967-06-19 Improvements in or relating to Foundry Moulding Sand Composition Expired GB1171963A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB415265A GB1087767A (en) 1965-01-29 1965-01-29 Improvements in and relating to foundry moulding sand compositions
GB2828167A GB1171963A (en) 1965-01-29 1967-06-19 Improvements in or relating to Foundry Moulding Sand Composition

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB415265A GB1087767A (en) 1965-01-29 1965-01-29 Improvements in and relating to foundry moulding sand compositions
GB2828167A GB1171963A (en) 1965-01-29 1967-06-19 Improvements in or relating to Foundry Moulding Sand Composition

Publications (1)

Publication Number Publication Date
GB1171963A true GB1171963A (en) 1969-11-26

Family

ID=35530771

Family Applications (2)

Application Number Title Priority Date Filing Date
GB415265A Expired GB1087767A (en) 1965-01-29 1965-01-29 Improvements in and relating to foundry moulding sand compositions
GB2828167A Expired GB1171963A (en) 1965-01-29 1967-06-19 Improvements in or relating to Foundry Moulding Sand Composition

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB415265A Expired GB1087767A (en) 1965-01-29 1965-01-29 Improvements in and relating to foundry moulding sand compositions

Country Status (1)

Country Link
GB (2) GB1087767A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331197A (en) * 1979-07-02 1982-05-25 Ford Motor Company Microwave core process

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450649A1 (en) * 1979-03-08 1980-10-03 Lubrefor Sa COMPOSITION BASED ON SILICATE, HARDENER AND SUGAR AND ITS APPLICATION TO COLD HARDENING OF SANDS
DE3403583A1 (en) * 1984-02-02 1985-08-08 Seaders, John, Corvallis, Oreg. Binder mix for consolidation
CN100462161C (en) * 2007-09-06 2009-02-18 甘肃省永靖昌盛铸钢有限责任公司 Composite sand mould material for producing stainless steel casting and method for casting stainless steel casting
DE102011053650B4 (en) * 2011-09-15 2022-03-24 Gebrüder Dorfner GmbH & Co. Kaolin- und Kristallquarzsand-Werke KG Use of free-flowing composite particles that inhibit plant growth
JP6604944B2 (en) * 2014-06-20 2019-11-13 旭有機材株式会社 Mold manufacturing method and mold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331197A (en) * 1979-07-02 1982-05-25 Ford Motor Company Microwave core process

Also Published As

Publication number Publication date
GB1087767A (en) 1967-10-18

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Legal Events

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