JPS5584245A - Production of sand mold for casting - Google Patents
Production of sand mold for castingInfo
- Publication number
- JPS5584245A JPS5584245A JP15827278A JP15827278A JPS5584245A JP S5584245 A JPS5584245 A JP S5584245A JP 15827278 A JP15827278 A JP 15827278A JP 15827278 A JP15827278 A JP 15827278A JP S5584245 A JPS5584245 A JP S5584245A
- Authority
- JP
- Japan
- Prior art keywords
- sand
- casting
- oxide
- dicarboxylic acid
- acid
- 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 produce sand mold free from offensive smell and occurrence of alkali pollution by discarded sand and having sufficient strength, by adding dicarboxylic acid and water into sand for casting, and adding oxide or hydroxide of bivalent or trivalent metal.
CONSTITUTION: Casting sand is mixed with, in the presence of a slight quantity of water, dicarboxylic acid, especially preferably aromatic dicarboxylic acid such as unsaturated dicarboxylic acid like malonic acid and succinic acid, and oxide or hydroxide of bivalent or trivalent metal, especially preferably oxide or hydroxide of magnesium or aluminum. The casting sand used in this invention has the merit that the sand once may be used repeatedly. During repetition of use, it is not necessary to add magnesium oxide. The ratio of dicarboxilic acid A to casting sand D, which is A/D by weight, should be 0.005 or more.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15827278A JPS5584245A (en) | 1978-12-20 | 1978-12-20 | 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 |
---|---|---|---|
JP15827278A JPS5584245A (en) | 1978-12-20 | 1978-12-20 | Production of sand mold for casting |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5584245A true JPS5584245A (en) | 1980-06-25 |
Family
ID=15667974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15827278A Pending JPS5584245A (en) | 1978-12-20 | 1978-12-20 | Production of sand mold for casting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5584245A (en) |
-
1978
- 1978-12-20 JP JP15827278A patent/JPS5584245A/en active Pending
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