DIE CASTING MACHINE AND DIE CASTING METHOD

DIE CASTING MACHINE AND DIE CASTING METHOD

A die casting machine that suppresses the occurrence of surge pressure, prevents the occurrence of burrs and spouting of molten metal, and further minimizes variations in the quality of a molded product on site. The die casting machine comprises a mold (101) that cast-molds a product, an injection c...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: HIRAIZUMI KAZUKI, UCHIDA MASASHI, OKAZAKI YOSHINORI
Format: Patent
Sprache:eng
Schlagworte:
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Beschreibung
Zusammenfassung:A die casting machine that suppresses the occurrence of surge pressure, prevents the occurrence of burrs and spouting of molten metal, and further minimizes variations in the quality of a molded product on site. The die casting machine comprises a mold (101) that cast-molds a product, an injection cylinder (102) for injecting molten metal (15) to the mold, and a hydraulic device (103) for pressing under high pressure the injection cylinder. The hydraulic device comprises a piston ACC (20) that supplies hydraulic oil to press under pressure a piston (13) of the injection cylinder (102) and an injection cylinder inlet valve (31). The piston ACC comprises a high pressure fast pressure-raising piston accumulator (22, 322) and a low-pressure injection piston accumulator (21, 321).