JPS5592249A - Production of sand mold for casting - Google Patents
Production of sand mold for castingInfo
- Publication number
- JPS5592249A JPS5592249A JP16191378A JP16191378A JPS5592249A JP S5592249 A JPS5592249 A JP S5592249A JP 16191378 A JP16191378 A JP 16191378A JP 16191378 A JP16191378 A JP 16191378A JP S5592249 A JPS5592249 A JP S5592249A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- added
- molding sand
- metal oxide
- molding
- 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
Abstract
PURPOSE: To obtain sufficient green sand mold strength and enable to reuse molding sand, by mixing metal oxide, molding sand and water to polycarboxylic acid containing carboxyic group, and molding with mixture.
CONSTITUTION: Magnesium oxide of metal oxide and water are added to trimellitic acid, trimellitic acid anhydride, or the like of polycarboxylic acid containing three or more carboxylic groups in a molecule, and this mixture is added to the molding sand to fill up a molding mold. Aqueous solution of polyacrylic acid polymer containing carboxylic group is added to said polycarboxylic acid, and magnesium oxide of metal oxide and molding sand are added and mixed. Yet, similar effects may be obtained by adding maleic anhydride or the like of dicarboxylic acid to the trimellitic acid or the like of polycarboxylic acid, and adding magnesium oxide, iron oxide, and magnesium hydroxide of metal oxide or hydroxide, then adding and mixing into the molding sand together with water or aqueous solution of polyacrylic acid of polymer containing carboxylic group.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16191378A JPS5592249A (en) | 1978-12-29 | 1978-12-29 | Production of sand mold for casting |
GB7943129A GB2039283B (en) | 1978-12-20 | 1979-12-14 | Production of moulds |
GB8041109A GB2063893B (en) | 1978-12-20 | 1979-12-14 | Production of moulds |
BR7908408A BR7908408A (en) | 1978-12-20 | 1979-12-20 | FOUNDRY SAND MOLD MANUFACTURING PROCESS |
US06/105,534 US4330459A (en) | 1978-12-20 | 1979-12-20 | Method of manufacturing foundry sand molds |
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 |
---|---|---|---|
JP16191378A JPS5592249A (en) | 1978-12-29 | 1978-12-29 | Production of sand mold for casting |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5592249A true JPS5592249A (en) | 1980-07-12 |
Family
ID=15744394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16191378A Pending JPS5592249A (en) | 1978-12-20 | 1978-12-29 | Production of sand mold for casting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5592249A (en) |
-
1978
- 1978-12-29 JP JP16191378A patent/JPS5592249A/en active Pending
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