JPS5739058A - Mold making method - Google Patents

Mold making method

Info

Publication number
JPS5739058A
JPS5739058A JP11624580A JP11624580A JPS5739058A JP S5739058 A JPS5739058 A JP S5739058A JP 11624580 A JP11624580 A JP 11624580A JP 11624580 A JP11624580 A JP 11624580A JP S5739058 A JPS5739058 A JP S5739058A
Authority
JP
Japan
Prior art keywords
molding
molding flask
flask
vent holes
pattern plate
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
JP11624580A
Other languages
Japanese (ja)
Other versions
JPS6321578B2 (en
Inventor
Nagato Unosaki
Kazuharu Matsui
Shigehiro Toyoda
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.)
Sintokogio Ltd
Original Assignee
Sintokogio 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 Sintokogio Ltd filed Critical Sintokogio Ltd
Priority to JP11624580A priority Critical patent/JPS5739058A/en
Publication of JPS5739058A publication Critical patent/JPS5739058A/en
Publication of JPS6321578B2 publication Critical patent/JPS6321578B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To form a main mod accurately by superposing a molding flask on the upper surface of a pattern plate provided with a pressure reducing chamber and vent holes, filling the space with molding sand containing binder, covering the upper surface of the molding flask with a film and squeezing the molding sand by sucking making the inside of the molding flask negetaive pressure.
CONSTITUTION: A molding flask 7 is superposed on the upper surface of a pattern plate 1 provided with a pressure reducing chamber 2 and plural vent holes 4 connected to it and the space formed by the molding flask 7 and pattern plate 1 is filled with molding sand 9 containing binder. Next, the upper surface of the molding flask 7 is covered airtightly with a flexible film sheet 10. Here, a suction device connected to the pressure reducing chamber 2 is actuated to make the inside of the molding flask 7 negative pressure through a duct 11 and vent holes 4, and the molding sand 9 is squeezed by suction through the film sheet 10.
COPYRIGHT: (C)1982,JPO&Japio
JP11624580A 1980-08-22 1980-08-22 Mold making method Granted JPS5739058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11624580A JPS5739058A (en) 1980-08-22 1980-08-22 Mold making method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11624580A JPS5739058A (en) 1980-08-22 1980-08-22 Mold making method

Publications (2)

Publication Number Publication Date
JPS5739058A true JPS5739058A (en) 1982-03-04
JPS6321578B2 JPS6321578B2 (en) 1988-05-07

Family

ID=14682367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11624580A Granted JPS5739058A (en) 1980-08-22 1980-08-22 Mold making method

Country Status (1)

Country Link
JP (1) JPS5739058A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552141A (en) * 1978-06-22 1980-01-09 Komatsu Mfg Co Ltd Method of injecting viscous fluid into rock or stone

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552141A (en) * 1978-06-22 1980-01-09 Komatsu Mfg Co Ltd Method of injecting viscous fluid into rock or stone

Also Published As

Publication number Publication date
JPS6321578B2 (en) 1988-05-07

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