JPS5656754A - Production of sand mold for casting - Google Patents

Production of sand mold for casting

Info

Publication number
JPS5656754A
JPS5656754A JP13254479A JP13254479A JPS5656754A JP S5656754 A JPS5656754 A JP S5656754A JP 13254479 A JP13254479 A JP 13254479A JP 13254479 A JP13254479 A JP 13254479A JP S5656754 A JPS5656754 A JP S5656754A
Authority
JP
Japan
Prior art keywords
casting
sand mold
sand
parts
silica
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
JP13254479A
Other languages
Japanese (ja)
Inventor
Takeshi Tobinaga
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Petrochemical Co Ltd
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 Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP13254479A priority Critical patent/JPS5656754A/en
Publication of JPS5656754A publication Critical patent/JPS5656754A/en
Pending legal-status Critical Current

Links

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  • Mold Materials And Core Materials (AREA)

Abstract

PURPOSE: To produce a sand mold for casting of superior strength of sand mold, heat resistance during pouring, collapsing property after pouring, etc. by beforehand treating silica and with compound of alkalimetals and alkaline earth metals and accelerating vitrification.
CONSTITUTION: Compound of alkali metals and alkaline earth metals such as sodium hydroxide, water glass and the like is mixed uniformly to silica sand for casting at about 2.0W5 parts based on 100pts.wt. of silica sand and is reacted at high temperatures to accelerate vitrification. An organic polymer is added at 0.3W5 parts to 100 parts of this sand and these are agitated and uniformly mixed to retain binding power. The use of this mixture yields the sand mold for casting of superior beauty of the sand mold and casting surface, etc.
COPYRIGHT: (C)1981,JPO&Japio
JP13254479A 1979-10-15 1979-10-15 Production of sand mold for casting Pending JPS5656754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13254479A JPS5656754A (en) 1979-10-15 1979-10-15 Production of sand mold for casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13254479A JPS5656754A (en) 1979-10-15 1979-10-15 Production of sand mold for casting

Publications (1)

Publication Number Publication Date
JPS5656754A true JPS5656754A (en) 1981-05-18

Family

ID=15083754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13254479A Pending JPS5656754A (en) 1979-10-15 1979-10-15 Production of sand mold for casting

Country Status (1)

Country Link
JP (1) JPS5656754A (en)

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