JPS5785643A - Method for making mold - Google Patents

Method for making mold

Info

Publication number
JPS5785643A
JPS5785643A JP16072780A JP16072780A JPS5785643A JP S5785643 A JPS5785643 A JP S5785643A JP 16072780 A JP16072780 A JP 16072780A JP 16072780 A JP16072780 A JP 16072780A JP S5785643 A JPS5785643 A JP S5785643A
Authority
JP
Japan
Prior art keywords
molding
sand
mold
pattern
thence
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
JP16072780A
Other languages
Japanese (ja)
Inventor
Ryozo Hashida
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 JP16072780A priority Critical patent/JPS5785643A/en
Publication of JPS5785643A publication Critical patent/JPS5785643A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To minimize the amt. of moldig sand required for packing by using a molding flask having a min. required space between the same and a pattern shape and producig the mold by using oscillations and decompressing force.
CONSTITUTION: A mold pattern 1 with a molding board is placed on a molding flask 4 packed with packing such as concrete 6 or the like by having a space as much as the thickness of facing sand with respect to a pattern shape. Thence, molding sand 12 is charged through a molding sand feed port 3 into the cavity part 11 created by both thereof and is firmly and uniformly packed into the cavity part 11 by operating a vibration table 8 and the suction force through a vent pipe 10, a vent chamber 9 and a vent hole 7. Thence, the pattern is removed after hardening of the molding sand, whereby a mold 13 is obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP16072780A 1980-11-17 1980-11-17 Method for making mold Pending JPS5785643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16072780A JPS5785643A (en) 1980-11-17 1980-11-17 Method for making mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16072780A JPS5785643A (en) 1980-11-17 1980-11-17 Method for making mold

Publications (1)

Publication Number Publication Date
JPS5785643A true JPS5785643A (en) 1982-05-28

Family

ID=15721150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16072780A Pending JPS5785643A (en) 1980-11-17 1980-11-17 Method for making mold

Country Status (1)

Country Link
JP (1) JPS5785643A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0709149A1 (en) 1994-10-07 1996-05-01 Sintokogio, Ltd. Apparatus and method for producing shell-like molds

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0709149A1 (en) 1994-10-07 1996-05-01 Sintokogio, Ltd. Apparatus and method for producing shell-like molds
US5881794A (en) * 1994-10-07 1999-03-16 Sintokogio, Ltd. Apparatus and method for producing shell-like molds
CN1043316C (en) * 1994-10-07 1999-05-12 新东工业株式会社 Method and equipment for producing cope and drag molds

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