GB1444280A - Process for the preparation of moulds and cores - Google Patents

Process for the preparation of moulds and cores

Info

Publication number
GB1444280A
GB1444280A GB3978873A GB3978873A GB1444280A GB 1444280 A GB1444280 A GB 1444280A GB 3978873 A GB3978873 A GB 3978873A GB 3978873 A GB3978873 A GB 3978873A GB 1444280 A GB1444280 A GB 1444280A
Authority
GB
United Kingdom
Prior art keywords
furfuryl alcohol
bitumen
sand
formaldehyde resins
powdered
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
GB3978873A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB1444280A publication Critical patent/GB1444280A/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
    • B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

1444280 Foundry moulds SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 22 Aug 1973 [24 Aug 1972] 39788/73 Heading C3N A process for the preparation of a mould or core comprises hardening a shaped mixture containing sand, an organic binder, and powdered precipitation bitumen. The powdered precipitation bitumen may be present in an amount 0À5-10% by weight and preferably has a grain size less than 1 mm. (e.g. 0À25 mm.). The precipitation bitumen is preferably a propane bitumen. The "organic binder" is defined as a compound which can be made to react (i.e. harden) to form high-molecular compounds, e.g. furfuryl alcohol-urea-formaldehyde resins, furfuryl alcohol-phenol-formaldehyde resins, epoxy resins and furfuryl alcohol-urea-formaldehyde resins. Such preferred binders suitably contain 50-95 % by weight furfuryl alcohol. Hardening may be effected by heating or by use of an acid, e.g. p-toluene sulphonic acid or phosphoric acid. The sand may be chromite, zirconia, olivine or preferably quartz. A silane may be added to improve the bonding of the resin to the sand. The mould or core produced may be provided with a coating, e.g. a suspension in isopropyl alcohol of zirconia, coal dust, coke or powdered graphite. The suspension may also contain starch or clay.
GB3978873A 1972-08-24 1973-08-22 Process for the preparation of moulds and cores Expired GB1444280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7211534A NL7211534A (en) 1972-08-24 1972-08-24

Publications (1)

Publication Number Publication Date
GB1444280A true GB1444280A (en) 1976-07-28

Family

ID=19816780

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3978873A Expired GB1444280A (en) 1972-08-24 1973-08-22 Process for the preparation of moulds and cores

Country Status (5)

Country Link
JP (1) JPS587379B2 (en)
DE (1) DE2342371A1 (en)
FR (1) FR2199485B1 (en)
GB (1) GB1444280A (en)
NL (1) NL7211534A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004110670A2 (en) * 2003-06-12 2004-12-23 S & B Industrial Minerals Gmbh Method for the production of a core sand and/or molding sand for casting purposes
CN105107475A (en) * 2015-08-21 2015-12-02 天津博纳艾杰尔科技有限公司 Core-shell type porous zirconium dioxide material and preparation method thereof
CN114918363A (en) * 2022-05-31 2022-08-19 中国第一汽车股份有限公司 Thin-wall sand core for automobile cylinder body and preparation method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2647852A1 (en) * 1975-11-03 1977-05-12 Ashland Oil Canada FOUNDRY CORE BINDERS AND FOUNDRY MOLDING COMPOUNDS CONTAINING ASPHALT OR BITUMEN
SE415451B (en) * 1979-01-12 1980-10-06 Tsniitmash FOR A COLLABLE FORM SAND MIXTURE PROVIDED FOR THE BINDING MATERIAL BASED ON CARBAMIDE-FORMAL HEADHART WITH A MEDICINE FOR REGULATING THE BINDING FORM AND THE PROCEDURE FOR THE MANUFACTURING OF THE BINDING AGENT
CN114669718B (en) * 2020-12-24 2024-08-30 金隆化学工业股份有限公司 Method for manufacturing adhesive material lamination

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622963A (en) * 1950-07-11 1952-12-23 Whitehead Bruthers Company Additive composition for sand molds and method of making same
US2644741A (en) * 1951-06-01 1953-07-07 Hill & Griffith Company Carbonaceous additive for molding sand
US3413251A (en) * 1963-09-20 1968-11-26 Huttenes Kommanditgesellschaft Materials for the manufacture of foundry molds and cores
FR2137174A3 (en) * 1971-05-14 1972-12-29 Doittau Produits Metal Foundry sand prepn - to improve the stripping of castings

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004110670A2 (en) * 2003-06-12 2004-12-23 S & B Industrial Minerals Gmbh Method for the production of a core sand and/or molding sand for casting purposes
WO2004110670A3 (en) * 2003-06-12 2005-02-24 S & B Ind Minerals Gmbh Method for the production of a core sand and/or molding sand for casting purposes
US7281570B2 (en) 2003-06-12 2007-10-16 S & B Industrial Minerals Gmbh Method for the production of a core sand and/or molding sand for casting purposes
CN105107475A (en) * 2015-08-21 2015-12-02 天津博纳艾杰尔科技有限公司 Core-shell type porous zirconium dioxide material and preparation method thereof
CN105107475B (en) * 2015-08-21 2017-11-14 天津博纳艾杰尔科技有限公司 A kind of hud typed porous silica zirconia material and preparation method thereof
CN114918363A (en) * 2022-05-31 2022-08-19 中国第一汽车股份有限公司 Thin-wall sand core for automobile cylinder body and preparation method
CN114918363B (en) * 2022-05-31 2024-03-15 中国第一汽车股份有限公司 Thin-wall sand core for automobile cylinder body and preparation method

Also Published As

Publication number Publication date
FR2199485A1 (en) 1974-04-12
DE2342371A1 (en) 1974-02-28
FR2199485B1 (en) 1976-12-03
JPS587379B2 (en) 1983-02-09
NL7211534A (en) 1974-02-26
JPS4959032A (en) 1974-06-07

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Legal Events

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