JPS5691955A - Production of self-hardening mold - Google Patents

Production of self-hardening mold

Info

Publication number
JPS5691955A
JPS5691955A JP17009379A JP17009379A JPS5691955A JP S5691955 A JPS5691955 A JP S5691955A JP 17009379 A JP17009379 A JP 17009379A JP 17009379 A JP17009379 A JP 17009379A JP S5691955 A JPS5691955 A JP S5691955A
Authority
JP
Japan
Prior art keywords
sand
molding
mold
self
cement
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
Application number
JP17009379A
Other languages
Japanese (ja)
Inventor
Yoshiaki Tanaka
Masuo Sawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kao Corp filed Critical Kao Corp
Priority to JP17009379A priority Critical patent/JPS5691955A/en
Publication of JPS5691955A publication Critical patent/JPS5691955A/en
Pending legal-status Critical Current

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  • Mold Materials And Core Materials (AREA)

Abstract

PURPOSE: To expedite the strength development of a sand mold and mold a nontoxic mold of high strength by compounding a binder combining cement and glyoxal in molding sand and molding the same.
CONSTITUTION: Glyoxal is prepared to a 40% aqueous soln. and is added to molding sand such as silica sand at 0.5W15wt% based on the weight of the sand, and the mixture is mixed. Thence, cement such as portland cement is added at 0.5W 20% thereto and the mixture is kneaded. This is filled in a molding flask, and is molded. According to this method, the development of strength is expedited, and no toxic gases are evolved during molding or pouring of molten metal, thus the self- hardening mold of good collapsing property of sand after pouring is obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP17009379A 1979-12-26 1979-12-26 Production of self-hardening mold Pending JPS5691955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17009379A JPS5691955A (en) 1979-12-26 1979-12-26 Production of self-hardening mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17009379A JPS5691955A (en) 1979-12-26 1979-12-26 Production of self-hardening mold

Publications (1)

Publication Number Publication Date
JPS5691955A true JPS5691955A (en) 1981-07-25

Family

ID=15898505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17009379A Pending JPS5691955A (en) 1979-12-26 1979-12-26 Production of self-hardening mold

Country Status (1)

Country Link
JP (1) JPS5691955A (en)

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