JPS56109134A - Self-hardening molding sand composition - Google Patents
Self-hardening molding sand compositionInfo
- Publication number
- JPS56109134A JPS56109134A JP936980A JP936980A JPS56109134A JP S56109134 A JPS56109134 A JP S56109134A JP 936980 A JP936980 A JP 936980A JP 936980 A JP936980 A JP 936980A JP S56109134 A JPS56109134 A JP S56109134A
- Authority
- JP
- Japan
- Prior art keywords
- molding sand
- contg
- added
- self
- phenol
- 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
Landscapes
- Mold Materials And Core Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To eliminate malodor generation and prevent the collapsing etc. of a mold by allowing to contain a nitrogen-contg. compound, resol type phenol formaldehyde resin and molding sand.
CONSTITUTION: A nitrogen-contg. compound selected from a group consisting of urea, aniline and melamine is added to the methylol phenol obtd. by reacting phenols and formaldehydes in the presence of an alkaline catalyst, and in some cases, further a solvent and preserving agent are added, whereby a methylol-phenol-contg. soln. is once prepd. This soln. is added to molding sand contg. a hardener and these are thoroughly kneaded in a manner as to mix uniformly, whereby the composition is prepd. This self-hardening molding sand composition is molded simply by putting it into a wooden mold and allowing to stand at ordinary temp.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP936980A JPS5942581B2 (en) | 1980-01-31 | 1980-01-31 | Self-hardening foundry sand composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP936980A JPS5942581B2 (en) | 1980-01-31 | 1980-01-31 | Self-hardening foundry sand composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56109134A true JPS56109134A (en) | 1981-08-29 |
JPS5942581B2 JPS5942581B2 (en) | 1984-10-16 |
Family
ID=11718551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP936980A Expired JPS5942581B2 (en) | 1980-01-31 | 1980-01-31 | Self-hardening foundry sand composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5942581B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5947042A (en) * | 1982-09-13 | 1984-03-16 | Daicel Chem Ind Ltd | Binder for casting mold |
JPS59202135A (en) * | 1983-04-28 | 1984-11-15 | Aisin Chem Co Ltd | Binder coated sand grain |
JPWO2009130763A1 (en) * | 2008-04-22 | 2011-08-11 | 三菱電機株式会社 | Electric circuit switching operation device |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6368177U (en) * | 1986-10-23 | 1988-05-09 | ||
JPH0525112Y2 (en) * | 1986-12-09 | 1993-06-24 |
-
1980
- 1980-01-31 JP JP936980A patent/JPS5942581B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5947042A (en) * | 1982-09-13 | 1984-03-16 | Daicel Chem Ind Ltd | Binder for casting mold |
JPS59202135A (en) * | 1983-04-28 | 1984-11-15 | Aisin Chem Co Ltd | Binder coated sand grain |
JPH0255138B2 (en) * | 1983-04-28 | 1990-11-26 | Aishin Kako Kk | |
JPWO2009130763A1 (en) * | 2008-04-22 | 2011-08-11 | 三菱電機株式会社 | Electric circuit switching operation device |
Also Published As
Publication number | Publication date |
---|---|
JPS5942581B2 (en) | 1984-10-16 |
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