JPS5699045A - Preparation of resin coated molding sand - Google Patents

Preparation of resin coated molding sand

Info

Publication number
JPS5699045A
JPS5699045A JP224080A JP224080A JPS5699045A JP S5699045 A JPS5699045 A JP S5699045A JP 224080 A JP224080 A JP 224080A JP 224080 A JP224080 A JP 224080A JP S5699045 A JPS5699045 A JP S5699045A
Authority
JP
Japan
Prior art keywords
sand
coated
molding sand
resin
film
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
Application number
JP224080A
Other languages
Japanese (ja)
Other versions
JPS588938B2 (en
Inventor
Atsushi Tsutsui
Toshitada Onoda
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Toyo Kogyo 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 Mazda Motor Corp, Toyo Kogyo Co Ltd filed Critical Mazda Motor Corp
Priority to JP55002240A priority Critical patent/JPS588938B2/en
Publication of JPS5699045A publication Critical patent/JPS5699045A/en
Publication of JPS588938B2 publication Critical patent/JPS588938B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To insure the hot strength and disintegrativeness of titled molding sand, by coating the sand with double layers respectively comprising a phenol resin and a vinyl resin.
CONSTITUTION: Aqueous solution of polyvinylalcohol or polyvinylacetate possessing 400 or less mean polymerization degrees, is added to the silica sand by 0.1 or more weight precent as the solid solute; then, these materials are mulled by a sand mixer, and the surface of silica sand is coated by PVA or PVAc. This coating film is gelatinized by adding a monomer of boron compound or aqueous alkali solution of boron, for the purpose of intercepting the compatibility of the first coated film with the next coated film. The silica sand with gelatinized coating film is additionally coated by phenol resin, to finish the resin coated molding sand.
COPYRIGHT: (C)1981,JPO&Japio
JP55002240A 1980-01-12 1980-01-12 Manufacturing method of resin-coated sand for molds Expired JPS588938B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55002240A JPS588938B2 (en) 1980-01-12 1980-01-12 Manufacturing method of resin-coated sand for molds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55002240A JPS588938B2 (en) 1980-01-12 1980-01-12 Manufacturing method of resin-coated sand for molds

Publications (2)

Publication Number Publication Date
JPS5699045A true JPS5699045A (en) 1981-08-10
JPS588938B2 JPS588938B2 (en) 1983-02-18

Family

ID=11523829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55002240A Expired JPS588938B2 (en) 1980-01-12 1980-01-12 Manufacturing method of resin-coated sand for molds

Country Status (1)

Country Link
JP (1) JPS588938B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017086379A1 (en) * 2015-11-18 2017-05-26 花王株式会社 Binder composition for molding mold

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5041718A (en) * 1973-08-17 1975-04-16
JPS5253723A (en) * 1975-10-29 1977-04-30 Hitachi Metals Ltd Resin coated sand
JPS54122629A (en) * 1978-03-16 1979-09-22 Toyo Kogyo Co Casting mold producing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5041718A (en) * 1973-08-17 1975-04-16
JPS5253723A (en) * 1975-10-29 1977-04-30 Hitachi Metals Ltd Resin coated sand
JPS54122629A (en) * 1978-03-16 1979-09-22 Toyo Kogyo Co Casting mold producing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017086379A1 (en) * 2015-11-18 2017-05-26 花王株式会社 Binder composition for molding mold
CN108136485A (en) * 2015-11-18 2018-06-08 花王株式会社 Making molds adhesive composition
JPWO2017086379A1 (en) * 2015-11-18 2018-09-06 花王株式会社 Binder composition for mold making

Also Published As

Publication number Publication date
JPS588938B2 (en) 1983-02-18

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