JPS5626655A - Production of improved sand mold for casting - Google Patents
Production of improved sand mold for castingInfo
- Publication number
- JPS5626655A JPS5626655A JP10051479A JP10051479A JPS5626655A JP S5626655 A JPS5626655 A JP S5626655A JP 10051479 A JP10051479 A JP 10051479A JP 10051479 A JP10051479 A JP 10051479A JP S5626655 A JPS5626655 A JP S5626655A
- Authority
- JP
- Japan
- Prior art keywords
- carboxylic
- molding
- acids
- carboxylic groups
- magnesium oxide
- 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.)
- Pending
Links
Landscapes
- Mold Materials And Core Materials (AREA)
Abstract
PURPOSE: To smooth the surface and provide sufficient molding strength down to the inside by mixing carboxylic acids, magnesium oxide and molding sand in water or an aqueous polymer soln. having carboxylic groups and molding the mixture.
CONSTITUTION: Carboxylic acids of one or two or more kinds selected from the group consisting of polycarboxylic acids having two or more carboxylic groups in molecules and oxycarboxylic acids having respectively at least one or more hydroxyl groups and carboxylic groups in molecules, magnesium oxide and molding sand are mixed in an aqueous soln. having carboxylic groups and the mixture is molded, after which the molding is hardened. The carboxylic acids are preferably citric acid, maleic anhydride and malic acid, and the magnesium oxide of 220W 320Å (particularly 240W300Å) in the direction of the [200] direction of crystals by an X-ray diffraction method is used. The polymer having the carboxylic groups is polyacrylic polymer, ethylene-maleic anhydride copolymer, etc.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10051479A JPS5626655A (en) | 1979-08-06 | 1979-08-06 | Production of improved sand mold for casting |
GB8041109A GB2063893B (en) | 1978-12-20 | 1979-12-14 | Production of moulds |
GB7943129A GB2039283B (en) | 1978-12-20 | 1979-12-14 | Production of moulds |
US06/105,534 US4330459A (en) | 1978-12-20 | 1979-12-20 | Method of manufacturing foundry sand molds |
BR7908408A BR7908408A (en) | 1978-12-20 | 1979-12-20 | FOUNDRY SAND MOLD MANUFACTURING PROCESS |
FR7931338A FR2444520A1 (en) | 1978-12-20 | 1979-12-20 | PROCESS FOR PREPARING AGGLOMERANTS FOR FOUNDRY SAND |
DE2951502A DE2951502C2 (en) | 1978-12-20 | 1979-12-20 | Foundry sand mix |
US06/286,658 US4385656A (en) | 1978-12-20 | 1981-07-24 | Method of manufacturing foundry sand molds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10051479A JPS5626655A (en) | 1979-08-06 | 1979-08-06 | Production of improved sand mold for casting |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5626655A true JPS5626655A (en) | 1981-03-14 |
Family
ID=14276050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10051479A Pending JPS5626655A (en) | 1978-12-20 | 1979-08-06 | Production of improved sand mold for casting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5626655A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5368619A (en) * | 1976-11-30 | 1978-06-19 | Kuraray Co | Preparation of sanddmold for casting |
JPS53129121A (en) * | 1977-04-13 | 1978-11-10 | White Sea & Baltic Co | Component for casting |
-
1979
- 1979-08-06 JP JP10051479A patent/JPS5626655A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5368619A (en) * | 1976-11-30 | 1978-06-19 | Kuraray Co | Preparation of sanddmold for casting |
JPS53129121A (en) * | 1977-04-13 | 1978-11-10 | White Sea & Baltic Co | Component for casting |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2951502A1 (en) | METHOD FOR PRODUCING FOUNDRY SANDS | |
JPS5626655A (en) | Production of improved sand mold for casting | |
JPS5772750A (en) | Binder composition for mold | |
JPS5597839A (en) | Production of sand mold for casting | |
JPS5592249A (en) | Production of sand mold for casting | |
JPS55165250A (en) | Resin composition for binding molding sand particle | |
JPS5695444A (en) | Cold box method | |
JPS56111544A (en) | Production of self-hardening sand mold for casting of high green sand mold strength | |
JPS579554A (en) | Mold material | |
JPS55103253A (en) | Molding sand composition | |
JPS51128393A (en) | Unsaturated pulyester resin compositions | |
JPS56163057A (en) | Resin-coated sand grain for shell mold | |
JPS564419A (en) | Molding method of resin roll | |
JPS5662644A (en) | Resin composition for binding of molding sand grains | |
SU1407944A1 (en) | Material for simulating ice in hydraulic model investigation | |
JPS54132650A (en) | Resin composition for injection blow molding | |
JPS55103252A (en) | Molding sand composition | |
JPS5226602A (en) | Casting method of impeler for both absorbing | |
JPS5691960A (en) | Production of mold | |
JPS5540077A (en) | Prepration of mold | |
JPS56163055A (en) | Resin-coated sand grain for shell mold | |
JPS56136250A (en) | Production of self-curing mold | |
JPS57146468A (en) | Mold coating material for casting steel ingot | |
JPS5695945A (en) | Production of novel composition | |
JPS5441991A (en) | Unsaturated polyester resin composition for pressure molding |