JPS57177847A - Production of resin coated sand grain for shell mold - Google Patents
Production of resin coated sand grain for shell moldInfo
- Publication number
- JPS57177847A JPS57177847A JP6289081A JP6289081A JPS57177847A JP S57177847 A JPS57177847 A JP S57177847A JP 6289081 A JP6289081 A JP 6289081A JP 6289081 A JP6289081 A JP 6289081A JP S57177847 A JPS57177847 A JP S57177847A
- Authority
- JP
- Japan
- Prior art keywords
- resin coated
- production
- shell mold
- coated sand
- sand grain
- 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
- 229920005989 resin Polymers 0.000 title abstract 2
- 239000011347 resin Substances 0.000 title abstract 2
- 239000004576 sand Substances 0.000 title abstract 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 abstract 4
- 235000010299 hexamethylene tetramine Nutrition 0.000 abstract 2
- 239000004312 hexamethylene tetramine Substances 0.000 abstract 2
- 239000003110 molding sand Substances 0.000 abstract 2
- 239000011134 resol-type phenolic resin Substances 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000006061 abrasive grain Substances 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
- B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
- B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- B22C1/2246—Condensation polymers of aldehydes and ketones
- B22C1/2253—Condensation polymers of aldehydes and ketones with phenols
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE:To improve dimensional acuracy and strength in the stage of kneading heated sand grains and a solid resol type phenolic resin and molding the molding sand by adding a prescribed amt. of hexamethylenetetramine. CONSTITUTION:100pts.wt. solid resol type phenolic resin consisting essentially of SR aid is added to heated (120-140 deg.C) abrasive grains and these are agitated and mixed. Next, ''hexa'' water prepd. by dissolving 2-20pts. hexamethylenetetramine in water is added thereto and these are further kneaded. In this way, the resin coated molding sand with high dimensional accuracy and strength is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6289081A JPS57177847A (en) | 1981-04-24 | 1981-04-24 | Production of resin coated sand grain for shell mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6289081A JPS57177847A (en) | 1981-04-24 | 1981-04-24 | Production of resin coated sand grain for shell mold |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57177847A true JPS57177847A (en) | 1982-11-01 |
JPS6364260B2 JPS6364260B2 (en) | 1988-12-12 |
Family
ID=13213288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6289081A Granted JPS57177847A (en) | 1981-04-24 | 1981-04-24 | Production of resin coated sand grain for shell mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57177847A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5312958A (en) * | 1976-07-22 | 1978-02-06 | Shin Etsu Chem Co Ltd | Mercapto group-containing silicone rubber composition |
-
1981
- 1981-04-24 JP JP6289081A patent/JPS57177847A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5312958A (en) * | 1976-07-22 | 1978-02-06 | Shin Etsu Chem Co Ltd | Mercapto group-containing silicone rubber composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6364260B2 (en) | 1988-12-12 |
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