JPS5731441A - Mold making method - Google Patents

Mold making method

Info

Publication number
JPS5731441A
JPS5731441A JP10759480A JP10759480A JPS5731441A JP S5731441 A JPS5731441 A JP S5731441A JP 10759480 A JP10759480 A JP 10759480A JP 10759480 A JP10759480 A JP 10759480A JP S5731441 A JPS5731441 A JP S5731441A
Authority
JP
Japan
Prior art keywords
sand
cavity
cavities
mulled
auxiliary
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
JP10759480A
Other languages
Japanese (ja)
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 JP10759480A priority Critical patent/JPS5731441A/en
Publication of JPS5731441A publication Critical patent/JPS5731441A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)

Abstract

PURPOSE:To pack mulled sand to high density by forming auxiliary cavities communicating with the outer side of a product cavity and forcing the mulled sand in the auxiliary cavitites into the product cavity. CONSTITUTION:Auxiliary cavities 11 communicating with a product cavity 4 are formed by retreating ejector pins 7 by length (l). Mulled sand S is blown and packed into both cavities 4, 11. Then, after the end of the blowing of the sand S, the pins 7 are forced in by the length (l) to push the mulled sand in the cavities 11 out into the cavity 4, thereby packing the sand in the cavity 4 to high density. Thence, a hardening gas is blown into the cavity 4, whereby the mulled sand is hardened.
JP10759480A 1980-08-04 1980-08-04 Mold making method Pending JPS5731441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10759480A JPS5731441A (en) 1980-08-04 1980-08-04 Mold making method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10759480A JPS5731441A (en) 1980-08-04 1980-08-04 Mold making method

Publications (1)

Publication Number Publication Date
JPS5731441A true JPS5731441A (en) 1982-02-19

Family

ID=14463109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10759480A Pending JPS5731441A (en) 1980-08-04 1980-08-04 Mold making method

Country Status (1)

Country Link
JP (1) JPS5731441A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6432416A (en) * 1987-07-28 1989-02-02 Canon Denshi Kk Magnetic head
WO2003022488A1 (en) * 2001-09-10 2003-03-20 Hydro Aluminium Mandl&Berger Gmbh Method and mold shooter for producing molded parts such as casting cores for casting molds used for casting molten metal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038056A (en) * 1973-08-10 1975-04-09
JPS518008U (en) * 1974-07-03 1976-01-21

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038056A (en) * 1973-08-10 1975-04-09
JPS518008U (en) * 1974-07-03 1976-01-21

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6432416A (en) * 1987-07-28 1989-02-02 Canon Denshi Kk Magnetic head
WO2003022488A1 (en) * 2001-09-10 2003-03-20 Hydro Aluminium Mandl&Berger Gmbh Method and mold shooter for producing molded parts such as casting cores for casting molds used for casting molten metal

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