GB729057A - Improvements in or relating to a sand mold and core composition and method of makingsame - Google Patents

Improvements in or relating to a sand mold and core composition and method of makingsame

Info

Publication number
GB729057A
GB729057A GB24429/52A GB2442952A GB729057A GB 729057 A GB729057 A GB 729057A GB 24429/52 A GB24429/52 A GB 24429/52A GB 2442952 A GB2442952 A GB 2442952A GB 729057 A GB729057 A GB 729057A
Authority
GB
United Kingdom
Prior art keywords
acid
composition
ammonium
alpha
salt
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
GB24429/52A
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.)
Goodrich Corp
Original Assignee
BF Goodrich Corp
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 BF Goodrich Corp filed Critical BF Goodrich Corp
Publication of GB729057A publication Critical patent/GB729057A/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
    • B22C1/22—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 resins or rosins
    • B22C1/2206—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 resins or rosins obtained by reactions only involving carbon-to-carbon unsaturated bonds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A composition for use in the manufacture of foundry moulds and cores comprises a foundry sand containing a small quantity of a water-soluble polymer of an alpha-beta ethylenically unsaturated monocarboxylic acid, or its ammonium or mono-amine salt. The acid polymer may be partially neutralized with sodium or potassium hydroxide. Polymers mentioned are polyacrylic acid, polymethacrylic acid, polymethacrylic acid, poly-alpha-chloroacrylic acid, poly-alpha-cyanoacrylic acid ammonium polyacrylate, ammonium polymethacrylate, the ethylamine or propylamine salt of polyacrylic acid, the ammonium salt of an interpolymer of acrylic acid and methacrylic acid, the ammonium salt of a partially hydrolysed copolymer of acrylic acid and vinyl acetate, and the ammonium salt of a copolymer of acrylic acid and styrene. The composition may be made into sand moulds by admixture with a little water, moulding the composition into the desired shape and hardening the shaped composition at elevated temperature, e.g. 100 DEG to 450 DEG F. The composition may also include alcoholic polymers such as polyvinyl alcohol, partial polyvinyl acetals, pollyallyl alcohol, polymethallyl alcohol or small amounts of saturated polyhydric alcohols which when heated undergo cross-esterification and insolubilization. The foundry sand may be mixed with other ingredients such as silica flour, wood flour, sawdust, fire clays, bentonites, straw, hay, boric acid, iron oxide and sulphuric acid. The composition may also contain small quantities of a quick-release agent such as kerosene or light fuel oil.
GB24429/52A 1951-10-01 1952-09-30 Improvements in or relating to a sand mold and core composition and method of makingsame Expired GB729057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US729057XA 1951-10-01 1951-10-01

Publications (1)

Publication Number Publication Date
GB729057A true GB729057A (en) 1955-05-04

Family

ID=22110462

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24429/52A Expired GB729057A (en) 1951-10-01 1952-09-30 Improvements in or relating to a sand mold and core composition and method of makingsame

Country Status (1)

Country Link
GB (1) GB729057A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011986A (en) * 1958-09-12 1961-12-05 Howe Sound Co Dip coat composition for metal casting comprising ceramic flour, colloidal silica, gum, alkali metal fluoride and rubber latex
US3042641A (en) * 1959-10-30 1962-07-03 Dow Chemical Co Foundry molding composition containing a polyalkylenimine
EP0256364A1 (en) * 1986-08-07 1988-02-24 Röhm Gmbh Binder for foundry sands
CN102728777A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Multicomponent mixed casting molding sand and preparation method thereof
CN102728782A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Molding sand using clay as binder and producing method thereof
CN102728780A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Water glass molding sand and producing method thereof
CN102728779A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Molding sand utilizing waste sawdust and preparation method thereof
CN102728781A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Molding sand using cement as binder and producing method thereof
CN102728775A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Molding sand containing wood fiber and production method thereof
CN104475645A (en) * 2014-11-03 2015-04-01 繁昌县琦祥铸造厂 High pressure modeling molding sand and preparation method thereof
CN104959525A (en) * 2015-07-13 2015-10-07 中国第一汽车股份有限公司 Novel preparing method for vein-free casting sand

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011986A (en) * 1958-09-12 1961-12-05 Howe Sound Co Dip coat composition for metal casting comprising ceramic flour, colloidal silica, gum, alkali metal fluoride and rubber latex
US3042641A (en) * 1959-10-30 1962-07-03 Dow Chemical Co Foundry molding composition containing a polyalkylenimine
EP0256364A1 (en) * 1986-08-07 1988-02-24 Röhm Gmbh Binder for foundry sands
US4847309A (en) * 1986-08-07 1989-07-11 Rohm Gmbh Method for making foundry sand containing a resin binder
CN102728777A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Multicomponent mixed casting molding sand and preparation method thereof
CN102728782A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Molding sand using clay as binder and producing method thereof
CN102728780A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Water glass molding sand and producing method thereof
CN102728779A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Molding sand utilizing waste sawdust and preparation method thereof
CN102728781A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Molding sand using cement as binder and producing method thereof
CN102728775A (en) * 2012-06-08 2012-10-17 繁昌县琦祥铸造厂 Molding sand containing wood fiber and production method thereof
CN102728782B (en) * 2012-06-08 2014-01-15 繁昌县琦祥铸造厂 Molding sand using clay as binder and producing method thereof
CN102728780B (en) * 2012-06-08 2014-01-15 繁昌县琦祥铸造厂 Water glass molding sand and producing method thereof
CN102728775B (en) * 2012-06-08 2014-02-12 繁昌县琦祥铸造厂 Molding sand containing wood fiber and production method thereof
CN102728777B (en) * 2012-06-08 2014-04-30 繁昌县琦祥铸造厂 Multicomponent mixed casting molding sand and preparation method thereof
CN104475645A (en) * 2014-11-03 2015-04-01 繁昌县琦祥铸造厂 High pressure modeling molding sand and preparation method thereof
CN104959525A (en) * 2015-07-13 2015-10-07 中国第一汽车股份有限公司 Novel preparing method for vein-free casting sand

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