JPS5592247A - Molding material for shell mold - Google Patents
Molding material for shell moldInfo
- Publication number
- JPS5592247A JPS5592247A JP16344878A JP16344878A JPS5592247A JP S5592247 A JPS5592247 A JP S5592247A JP 16344878 A JP16344878 A JP 16344878A JP 16344878 A JP16344878 A JP 16344878A JP S5592247 A JPS5592247 A JP S5592247A
- Authority
- JP
- Japan
- Prior art keywords
- sand
- resin
- resol
- heated
- type resin
- 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.)
- Granted
Links
Abstract
PURPOSE: To shorten the baking time, increase the productivity, and improve the offensive smell pollution, by forming sand grains in different resin coated sands with resol type resin and novolak type resin mixed with hardener, and molding in mixture.
CONSTITUTION: Phenol, for malin and aqueous solution of hexamine as a catalyzer are put in a reactor, and heated and addition-condensed. Then, the jelly-like resin dehydrated under reduced pressure is cooled, and crushed, and is further dehydrated, then resol type resin is obtained. To obtain novolak type resin, phenol, formalin and oxalic acid as a catalyzer are put in a reactor, and heated and addition-condensed. Heating and concentrating under ordinary pressure, phenol is removed under reduced pressure, and o-amino benzoic acid is added 1.5wt% as hardener, then the resin is obtained by cooling after dissolving. Next, heated silica sand is put in a mixer, and while adding and mixing resol, water and calcium stearate are added and mixed, then resol coated sand is obtained. While adding novolak to heated silica sand and mixing similarly, when water, hardener and calcium stearate are added and mixed, then novolak coated sand is obtained. Then, by mixing the both types of sand, a molding material is obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16344878A JPS5592247A (en) | 1978-12-30 | 1978-12-30 | Molding material for shell mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16344878A JPS5592247A (en) | 1978-12-30 | 1978-12-30 | Molding material for shell mold |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5592247A true JPS5592247A (en) | 1980-07-12 |
JPS5750587B2 JPS5750587B2 (en) | 1982-10-28 |
Family
ID=15774066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16344878A Granted JPS5592247A (en) | 1978-12-30 | 1978-12-30 | Molding material for shell mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5592247A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5756137A (en) * | 1980-09-20 | 1982-04-03 | Toyoda Autom Loom Works Ltd | Molding material for shell molding |
US4619950A (en) * | 1985-01-24 | 1986-10-28 | Graphite Sales, Inc. | Method and material for plugging an ingot mold |
US4939188A (en) * | 1988-12-22 | 1990-07-03 | Borden, Inc. | Lithium-containing resole composition for making a shaped refractory article and other hardened articles |
US5043412A (en) * | 1988-06-23 | 1991-08-27 | Borden, Inc. | Ambient temperature curing, high carbon contributing compositions |
CN103658546A (en) * | 2013-12-06 | 2014-03-26 | 贵州安吉有色铸造有限责任公司 | Large-size shell core cast baking method |
CN115041628A (en) * | 2022-07-05 | 2022-09-13 | 柳州柳晶环保科技有限公司 | Method for preparing regenerated precoated sand by using waste precoated sand |
-
1978
- 1978-12-30 JP JP16344878A patent/JPS5592247A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5756137A (en) * | 1980-09-20 | 1982-04-03 | Toyoda Autom Loom Works Ltd | Molding material for shell molding |
JPH0146219B2 (en) * | 1980-09-20 | 1989-10-06 | Toyota Jido Shotsuki Seisakusho Kk | |
US4619950A (en) * | 1985-01-24 | 1986-10-28 | Graphite Sales, Inc. | Method and material for plugging an ingot mold |
US5043412A (en) * | 1988-06-23 | 1991-08-27 | Borden, Inc. | Ambient temperature curing, high carbon contributing compositions |
US4939188A (en) * | 1988-12-22 | 1990-07-03 | Borden, Inc. | Lithium-containing resole composition for making a shaped refractory article and other hardened articles |
CN103658546A (en) * | 2013-12-06 | 2014-03-26 | 贵州安吉有色铸造有限责任公司 | Large-size shell core cast baking method |
CN115041628A (en) * | 2022-07-05 | 2022-09-13 | 柳州柳晶环保科技有限公司 | Method for preparing regenerated precoated sand by using waste precoated sand |
Also Published As
Publication number | Publication date |
---|---|
JPS5750587B2 (en) | 1982-10-28 |
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