JPS56109138A - Molding method of mold - Google Patents
Molding method of moldInfo
- Publication number
- JPS56109138A JPS56109138A JP1118680A JP1118680A JPS56109138A JP S56109138 A JPS56109138 A JP S56109138A JP 1118680 A JP1118680 A JP 1118680A JP 1118680 A JP1118680 A JP 1118680A JP S56109138 A JPS56109138 A JP S56109138A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- heat
- glue
- water soluble
- thermosetting 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.)
- Pending
Links
Landscapes
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE: To prevent mold deformation by moisture absorption and make hot strength sufficient by compounding a water soluble thermosetting resin in a glue, and drying and hardening the same with heat.
CONSTITUTION: Molding sand obtd. by compounding and kneading a water soluble glue and a water soluble phenolic resin is quickly packed in a heated metal mold. The surface of the mold is dried and the glue hardened by the heat of the metal mold, and the thermosetting resin causes thermosetting reaction, thereby creating the surface hardened layer having strength. This core is put into a green sand mold matrix and in the thoroughly moisture absorbed state by allowing it to stand, molten cast iron is poured. In this way, a casting of good dimensional accuracy free from deformation and casting defects is obtained. When it is dried and hardened by the heat of the metal mold, even if the thermosetting resin is unreacted, it causes setting reaction by the heat of the molten metal at the pouring, whereby sufficient high temp. strength is obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1118680A JPS56109138A (en) | 1980-01-31 | 1980-01-31 | Molding method of mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1118680A JPS56109138A (en) | 1980-01-31 | 1980-01-31 | Molding method of mold |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56109138A true JPS56109138A (en) | 1981-08-29 |
Family
ID=11771030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1118680A Pending JPS56109138A (en) | 1980-01-31 | 1980-01-31 | Molding method of mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56109138A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05237594A (en) * | 1990-11-14 | 1993-09-17 | Mitsubishi Heavy Ind Ltd | Manufacture of core |
-
1980
- 1980-01-31 JP JP1118680A patent/JPS56109138A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05237594A (en) * | 1990-11-14 | 1993-09-17 | Mitsubishi Heavy Ind Ltd | Manufacture of core |
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