Die casting machine and casting method by thereof machine

Details Die casting machine and casting method by thereof machine Die casting machine and casting method by thereof machine

2008-05-27

2008-05-27

Lin, Kuang (Department: 1793)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S065000, C164S113000, C164S133000, C164S312000, C164S258000

Reexamination Certificate

active

07377303

ABSTRACT:
The present invention relates to a die casting machine. A molten metal (melted liquid) is supplied into a evacuated casting space that is formed by a combination of a movable mold and a fixed mold. The molten metal is first moved in a horizontal direction along a molten metal injection pipe and is then injected into a chamber located at the bottom of the casting space. Thereafter, the molten metal is moved in a vertical direction by means of a follower plunger and is then inserted into the casting space. Therefore, since occurrence of a turbulent flow of the molten metal injected into a mold is prevented, a product of a high quality with no minute bubbles can be obtained. Furthermore, the present invention relates to a die casting machine having a vacuum apparatus wherein a material is injected into a vacuum tank disposed in a melted liquid crucible via a pair of valves and another valve is also disposed even in a molten metal outflow hole of the vacuum tank to keep the degree of vacuum within the vacuum tank in a good state, whereby a good-quality product made of an alloy having a high melting point that is heavily oxidized in air can be produced, and casting method using the same.

REFERENCES:
patent: 4055216 (1977-10-01), Ulyanov et al.
patent: 4741384 (1988-05-01), Healey
patent: 5205338 (1993-04-01), Shimmell
patent: 5601136 (1997-02-01), Shimmell
patent: 5860468 (1999-01-01), Cook
patent: 6021840 (2000-02-01), Colvin

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