Title:
DIE CAST MANUFACTURING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/228390
Kind Code:
A1
Abstract:
Provided are a die cast manufacturing method and apparatus, with which it is possible to shorten a manufacturing cycle by allowing a die cast product to be extracted upon completion of cooling the product without having to wait until a biscuit part cools down. In the die cast manufacturing method and apparatus, after molten metal is injected into clamped molds by a first pressure application means, second pressure application is conducted by a second pressure application means via a runner that is directly connected to a cavity. In a state where filling of the cavity by the molten metal is completed by the first pressure application means, a passageway between a die cast product part and the biscuit part is disconnected so as to allow the second pressure application means to apply pressure to the die cast product part, thereby enabling the die cast product part and the biscuit part to be cut apart and to be extracted upon opening the molds.
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Inventors:
IWAMOTO NORIHIRO (JP)
NAGASAWA OSAMU (JP)
TANIGUCHI KEIJI (JP)
SAITO SHIGEAKI (JP)
NAGASAWA OSAMU (JP)
TANIGUCHI KEIJI (JP)
SAITO SHIGEAKI (JP)
Application Number:
PCT/JP2022/021657
Publication Date:
November 30, 2023
Filing Date:
May 26, 2022
Export Citation:
Assignee:
DIRECT21 CORP (JP)
International Classes:
B22D17/22; B22D17/32; B22D29/04
Domestic Patent References:
| WO2015151369A1 | 2015-10-08 |
Foreign References:
| JPH1024357A | 1998-01-27 | |||
| JPS63108959A | 1988-05-13 | |||
| JPH04220153A | 1992-08-11 | |||
| JPS6478665A | 1989-03-24 | |||
| JPH01107953A | 1989-04-25 | |||
| JPS6478663A | 1989-03-24 | |||
| JP2011224650A | 2011-11-10 | |||
| JP2007061854A | 2007-03-15 | |||
| JP2002224811A | 2002-08-13 | |||
| JPH03275263A | 1991-12-05 | |||
| JPH05104230A | 1993-04-27 |
Attorney, Agent or Firm:
MURAKAMI Tomokazu (JP)
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