JPS55156638A - Binder and coating sand for mold and molding method of mold using these - Google Patents
Binder and coating sand for mold and molding method of mold using theseInfo
- Publication number
- JPS55156638A JPS55156638A JP6535379A JP6535379A JPS55156638A JP S55156638 A JPS55156638 A JP S55156638A JP 6535379 A JP6535379 A JP 6535379A JP 6535379 A JP6535379 A JP 6535379A JP S55156638 A JPS55156638 A JP S55156638A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- binder
- solvent
- molding
- sand
- 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 the mold suited for the production of light alloy castings by charging the molding sand comprising by adding the binder for mold prepared by dissolving polyacrylic amide in water or quick-drying type solvent to dry sand and kneading into a molding flask then letting the foregoing solvent evaporate away thereby hardening the same.
CONSTITUTION: The binder for casting is prepared by dissolving polyacrylic amide which is generally used for flocculants of water treatment in water or quick-drying solvent (example; methanol). Next, the molding sand prepared by adding this binder to dry sand and kneading the mixture is charged into a core box or molding flask and pressure air is blown into the mold or the inside of the mold is pressure- reduced by using a vacuum pump or the like to dissipate away the solvent contained in the mold, whereby the mold is dry-hardened and molded. Here, the binder is compounded with the dry sand at such a ratio at which the polyacrylic amide becomes 1W3% and the solvent 5W20%. This mold has ordinary-temperature and heat resistance, permits easy core removal and is suited for molding the metal die of the metals of low pouring temperature.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6535379A JPS55156638A (en) | 1979-05-25 | 1979-05-25 | Binder and coating sand for mold and molding method of mold using these |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6535379A JPS55156638A (en) | 1979-05-25 | 1979-05-25 | Binder and coating sand for mold and molding method of mold using these |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55156638A true JPS55156638A (en) | 1980-12-05 |
Family
ID=13284497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6535379A Pending JPS55156638A (en) | 1979-05-25 | 1979-05-25 | Binder and coating sand for mold and molding method of mold using these |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55156638A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103817289A (en) * | 2014-03-19 | 2014-05-28 | 山西晋城无烟煤矿业集团有限责任公司 | Method for casting middle ledge of heavy scraper |
-
1979
- 1979-05-25 JP JP6535379A patent/JPS55156638A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103817289A (en) * | 2014-03-19 | 2014-05-28 | 山西晋城无烟煤矿业集团有限责任公司 | Method for casting middle ledge of heavy scraper |
CN103817289B (en) * | 2014-03-19 | 2016-03-23 | 山西晋城无烟煤矿业集团有限责任公司 | Ledge casting method in the middle part of heavy type scratch board machine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6431549A (en) | Molding material for precision casting | |
JPS55149747A (en) | Preventing method for defect of spheroidal graphite cast iron casting | |
JPS55156638A (en) | Binder and coating sand for mold and molding method of mold using these | |
JPS57193266A (en) | Metallic mold for casting | |
JPS56114552A (en) | Metal mold for casting | |
JPS5588950A (en) | Casting method of pump casing | |
JPS5653843A (en) | Mold coating material countermeasure against casting defect | |
JPS5510320A (en) | Composition for casting mold | |
JPS56144123A (en) | Casting mold for thermosetting resin | |
SU1316742A1 (en) | Method of hardening cores from water glass mixes | |
JPS63299907A (en) | Molding of powder | |
JPS5691957A (en) | Production of self-hardening mold | |
JPS56168955A (en) | Pressure decrease shaped mold casting method | |
JPS5684141A (en) | Casting sand for cold box process and manufacture of casting mold | |
SU1284674A1 (en) | Coating composition for metal moulds | |
JPS57149043A (en) | Shell mold material for light alloy casting and mold molded by heating from this | |
JPS5659572A (en) | Molding method of core for centrifugal casting | |
SU1659163A1 (en) | Mixture for making heated foundry cores and moulds | |
JPS5564942A (en) | Green sand mold making method | |
JPS5689350A (en) | Urea resin base wet sand composition | |
JPS55147452A (en) | Pattern | |
JPS578509A (en) | Lens barrel | |
JPS5530380A (en) | Molding binder and coating sand and molding method for mold usning same | |
JPS57159232A (en) | Sand composition for casting | |
JPS5662645A (en) | Production of mold |