Title:
DIE CASTING METHOD, DIE CASTING DEVICE AND MOLD
Document Type and Number:
WIPO Patent Application WO/2021/205670
Kind Code:
A1
Abstract:
A die casting method is provided which, in vacuum die casting, prevents clogging of a vacuum device by molten metal and enables manufacture of high-quality products. In addition, a mold and die casting device that are suitable to the die casting method are provided. In this die casting method, molten metal in a sleeve is injected, by means of an injection device, into a cavity in a mold via a molten metal passage that includes a runner while suctioning the gas inside of the cavity; the die casting method involves, in order, a low-speed injection step (S20) in which the injection device injects molten metal at a low injection speed, which is a low speed, a super-low-speed injection step (S30) in which the injection device injects molten metal at a super-low injection speed, which is lower than the low injection speed, and a high-speed injection step (S40) in which the injection device injects molten metal at a high injection speed, which is a high speed.
More Like This:
| WO/1998/000254 | PROCESS AND DEVICE FOR PRODUCING A BRAKE DRUM OR BRAKE DISK |
| WO/2016/006828 | MOLD APPARATUS FOR MOLDING METAL IN HIGH VACUUM ENVIRONMENT |
| WO/2012/100789 | VACUUM DIE-CASTING MACHINE |
Inventors:
MORIKAWA IWAO (JP)
Application Number:
PCT/JP2020/016224
Publication Date:
October 14, 2021
Filing Date:
April 11, 2020
Export Citation:
Assignee:
DIE ENG CORPORATION (JP)
International Classes:
B22D17/14; B22D17/22; B22D17/32
Foreign References:
| JP2008213009A | 2008-09-18 | |||
| JP2008264797A | 2008-11-06 | |||
| JPS626754A | 1987-01-13 | |||
| JPS61229458A | 1986-10-13 | |||
| JP2005516777A | 2005-06-09 | |||
| JP2002011546A | 2002-01-15 | |||
| CN101559482A | 2009-10-21 |
Attorney, Agent or Firm:
TOITA Hiroaki (JP)
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