GB1430841A - Foundry moulds or cores - Google Patents
Foundry moulds or coresInfo
- Publication number
- GB1430841A GB1430841A GB1277373A GB1277373A GB1430841A GB 1430841 A GB1430841 A GB 1430841A GB 1277373 A GB1277373 A GB 1277373A GB 1277373 A GB1277373 A GB 1277373A GB 1430841 A GB1430841 A GB 1430841A
- Authority
- GB
- United Kingdom
- Prior art keywords
- furfuryl alcohol
- urea
- sand
- formaldehyde
- agent
- 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
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
- B22C1/2233—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 otherwise than 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
1430841 Foundry moulds CENTRE TECHNIQUE DES INDUSTRIES DE LA FONDERIE WENDEL - SIDELOR and INDUSTRIES CHIMIQUES DE VOREPPE 16 March 1973 [27 March 1972] 12773/73 Heading C3N A method of manufacturing foundry moulds and cores of increased mechanical resistance comprises mixing a refractory sand, a binding agent for the refractory sand which is either a urea-formaldehyde resin together with a fluidizing agent therefor, a resin containing urea, formaldehyde and furfuryl alcohol in polymerized form optionally with a fluidizing agent therefor, or a mixture of a urea-formaldehyde resin and a precondensate of furfuryl alcohol, optionally with formaldehyde, optionally with a fluidizing agent therefor, a mineral acid or organic acid as setting agent, water and a surface-active agent which produces a foam which substantially completely subsides before the sand begins to set, thereby to prepare a selfhardening liquid sand, moulding the liquid sand and subjecting it to mechanical stresses between the time the sand begins to settle and the time it begins to set, the amount of furfuryl alcohol in polymerized or non-polymerized form not being such as to prevent a foam from forming and wherein the surface-active agent used in an amount 0À01-2% by weight of the liquid sand is chosen from one of the following:- (a) an alkylbenzenesulphonate of Formula (I): in which R 1 , R 2 , R 3 , R 4 each represent an atom of hydrogen or an alkyl group, the alkyl groups having a total of more than 9 carbon atoms and occupying any position on the benzene ring with respect to the sulphonyl group, and Me represents a hydrogen atom, or alkali metal or an HX group, X being an amine, alone or mixed with an alkylbenzene sulphonate of Formula II : in which R<SP>1</SP> 1 and R<SP>1</SP> 2 represents an atom of hydrogen or an alkyl group (C 1-3 ) with the proviso that at least one of R<SP>1</SP> 1 and R<SP>1</SP> 2 is such an alkyl group, and Me is as previously defined: (b) an alkylamine salt of the formula RNH 2 .YH in which R is alkyl (more than C 9 ) and Y is the anionic portion of an acid; (c) a compound of formula in which R represents alkyl (more than C 9 ) and Me is an alkali metal. The fluidizing agent may be furfuryl alcohol or a solvent such as an alcohol or a ketone. Examples of suitable binding agents are: (i) urea-formaldehyde-furfuryl alcohol polycondensates; (ii) mixtures of ureaformaldehyde resin and a furfuryl alcoholformaldehyde precondensate; (iii) resins obtained by the prepolymerization of furfuryl alcohol and a urea-formaldehyde resin; (iv) superpolymerized resins obtained by the further polymerization of prepolymers (iii) above; (v) mixtures of a precondensate of furfuryl alcohol and a urea-formaldehyde resin; and (vi) mixtures of resins (iii) and (iv) either with a urea-formaldehyde resin or with furfuryl alcohol. The fluidizing agent may be furfuryl alcohol, or a solvent such as an alcohol or a ketone. The sulphonic acid may also serve as the setting agent. Setting agents disclosed are sulphuric and phosphoric acids. Numerous examples disclose many compositions which may be used. Specific surface-active agents disclosed are n-dodecylbenzenesulphonic acid optionally with p-toluene sulphonic acid, monolaurylethanolamide - sulphosuccinate, laurylamine acetate, oleylamine acetate and tetra isopropylbenzene sulphonate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7210727A FR2177502B2 (en) | 1972-03-27 | 1972-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1430841A true GB1430841A (en) | 1976-04-07 |
Family
ID=9095870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1277373A Expired GB1430841A (en) | 1972-03-27 | 1973-03-16 | Foundry moulds or cores |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS4914316A (en) |
BE (1) | BE796841R (en) |
CA (1) | CA989591A (en) |
DE (1) | DE2315244C2 (en) |
ES (1) | ES413020A1 (en) |
FR (1) | FR2177502B2 (en) |
GB (1) | GB1430841A (en) |
LU (1) | LU67296A1 (en) |
NL (1) | NL7304286A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2752608A1 (en) * | 1976-12-11 | 1978-06-15 | White Sea & Baltic Co | METHOD FOR PRODUCING A CAST MOLD OR CORE |
US4111253A (en) | 1972-08-21 | 1978-09-05 | The White Sea & Baltic Company Limited | Foundry processes and compositions |
US4236569A (en) | 1978-05-19 | 1980-12-02 | The White Sea & Baltic Company Limited | Foundry processes and compositions |
EP1661639A1 (en) * | 2003-09-02 | 2006-05-31 | Sintokogio, Ltd. | Method of forming mold and core for metal casting |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2427862A1 (en) * | 1978-06-08 | 1980-01-04 | Tech Ind Fonderie Centre | Foundry core with complex shape prodn. - involving filling core box with liquid sand mixt. under pressure |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1159597B (en) * | 1962-05-29 | 1963-12-19 | Albertuswerke G M B H | Core and foundry sand binders |
US3360492A (en) * | 1964-08-05 | 1967-12-26 | Ford Motor Co | Molding composition comprising a refractory material and as a binder the reaction product of formaldehyde, furfuryl alcohol and a urea |
US3424600A (en) * | 1965-05-26 | 1969-01-28 | Abram Moiseevich Liass | Liquid mixes for foundry cores and moulds and method of manufacturing foundry cores and moulds from same |
CH449857A (en) * | 1965-10-18 | 1968-01-15 | Reichhold Chemie Ag | Process for making sand cores and molds |
FR1473665A (en) * | 1966-03-31 | 1967-03-17 | Foseco Trading Ag | Foundry molds and cores |
FR1597574A (en) * | 1968-10-22 | 1970-06-29 | ||
US3615755A (en) * | 1970-01-14 | 1971-10-26 | Mitsubishi Heavy Ind Ltd | Method for making a mold using manganese carbonate |
FR2096863B1 (en) * | 1970-07-07 | 1973-02-02 | Ctre Tech Ind Fonderie |
-
1972
- 1972-03-27 FR FR7210727A patent/FR2177502B2/fr not_active Expired
-
1973
- 1973-03-16 BE BE2052605A patent/BE796841R/en not_active IP Right Cessation
- 1973-03-16 GB GB1277373A patent/GB1430841A/en not_active Expired
- 1973-03-22 CA CA167,284A patent/CA989591A/en not_active Expired
- 1973-03-26 ES ES413020A patent/ES413020A1/en not_active Expired
- 1973-03-26 LU LU67296D patent/LU67296A1/xx unknown
- 1973-03-26 JP JP3443473A patent/JPS4914316A/ja active Pending
- 1973-03-27 NL NL7304286A patent/NL7304286A/xx active Search and Examination
- 1973-03-27 DE DE19732315244 patent/DE2315244C2/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4111253A (en) | 1972-08-21 | 1978-09-05 | The White Sea & Baltic Company Limited | Foundry processes and compositions |
DE2752608A1 (en) * | 1976-12-11 | 1978-06-15 | White Sea & Baltic Co | METHOD FOR PRODUCING A CAST MOLD OR CORE |
US4236569A (en) | 1978-05-19 | 1980-12-02 | The White Sea & Baltic Company Limited | Foundry processes and compositions |
EP1661639A1 (en) * | 2003-09-02 | 2006-05-31 | Sintokogio, Ltd. | Method of forming mold and core for metal casting |
EP1661639A4 (en) * | 2003-09-02 | 2006-09-06 | Sintokogio Ltd | Method of forming mold and core for metal casting |
AU2004270031B2 (en) * | 2003-09-02 | 2009-08-27 | Sintokogio, Ltd. | Method of forming mold and core for metal casting |
US8490677B2 (en) | 2003-09-02 | 2013-07-23 | Sintokogio, Ltd. | Method for forming molds and core for casting metal |
US8528626B2 (en) | 2003-09-02 | 2013-09-10 | Sintokogio, Ltd. | Method for forming molds and a core for casting metal |
Also Published As
Publication number | Publication date |
---|---|
ES413020A1 (en) | 1976-06-01 |
DE2315244A1 (en) | 1973-10-11 |
NL7304286A (en) | 1973-10-01 |
FR2177502A2 (en) | 1973-11-09 |
DE2315244C2 (en) | 1983-11-24 |
BE796841R (en) | 1973-07-16 |
LU67296A1 (en) | 1973-06-15 |
FR2177502B2 (en) | 1974-12-06 |
CA989591A (en) | 1976-05-25 |
JPS4914316A (en) | 1974-02-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |