JPS564343A - Method of manufacturing mold - Google Patents

Method of manufacturing mold

Info

Publication number
JPS564343A
JPS564343A JP7819079A JP7819079A JPS564343A JP S564343 A JPS564343 A JP S564343A JP 7819079 A JP7819079 A JP 7819079A JP 7819079 A JP7819079 A JP 7819079A JP S564343 A JPS564343 A JP S564343A
Authority
JP
Japan
Prior art keywords
mold
sand
collapsing property
poor
manufacturing
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
JP7819079A
Other languages
Japanese (ja)
Inventor
Masami Wada
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7819079A priority Critical patent/JPS564343A/en
Publication of JPS564343A publication Critical patent/JPS564343A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make the mold part of poor collapsing property repeatedly usable and improve working efficiency by manufacturing the portions near those in contact with the casting and other portions by molding sand of good collapsing property and that of poor collapsing property, respectively, in the manufacturing method of mold by sand mold.
CONSTITUTION: The mold in a molding flask 1 consists of molds 5, 6 and the former is the mold of so called "good collapsing property", for example, the sand mold using organic-base binders of furan resin or the like. The latter is the mold of poor collapsing property, for example, the sand mold using inorganic-base binders such as N process sand. A suitable draft is given between the molds 5, 6. At the time of the knocking-out after pouring, only the portion of the mold 5 is taken out and the mold 6 may be repeatedly used together with the molding flask.
COPYRIGHT: (C)1981,JPO&Japio
JP7819079A 1979-06-22 1979-06-22 Method of manufacturing mold Pending JPS564343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7819079A JPS564343A (en) 1979-06-22 1979-06-22 Method of manufacturing mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7819079A JPS564343A (en) 1979-06-22 1979-06-22 Method of manufacturing mold

Publications (1)

Publication Number Publication Date
JPS564343A true JPS564343A (en) 1981-01-17

Family

ID=13655059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7819079A Pending JPS564343A (en) 1979-06-22 1979-06-22 Method of manufacturing mold

Country Status (1)

Country Link
JP (1) JPS564343A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620582A (en) * 1983-07-01 1986-11-04 Mueller Spaeth Gerhard Process for producing a casting mould and cast members
EP1531021A1 (en) * 2003-11-05 2005-05-18 Deutsche Giesserei- und Industrie-Holding AG Casting process for producing a casting piece
CN104338897A (en) * 2013-07-31 2015-02-11 朱保全 Balloon hollow molding method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620582A (en) * 1983-07-01 1986-11-04 Mueller Spaeth Gerhard Process for producing a casting mould and cast members
EP1531021A1 (en) * 2003-11-05 2005-05-18 Deutsche Giesserei- und Industrie-Holding AG Casting process for producing a casting piece
CN104338897A (en) * 2013-07-31 2015-02-11 朱保全 Balloon hollow molding method

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