| 摘要 |
A vacuum system for a die casting is provided to improve quality and productivity of a product by minimizing inflow of air into a cavity from the outside, thereby improving the degree of vacuum in the cavity. A vacuum system for a die casting comprises: a vacuum unit for sucking air in a cavity(C) formed when uniting a plurality of molds with one another; a vacuum sensor(70) inserted into the cavity to measure vacuum in the cavity; and mold sealing members formed on the molds to seal joining faces of the molds. The vacuum sensor includes valves(72,73) of which one ends are inserted into the cavity to open a valve gate hole(71a) formed in the molds, a pressure sensor(74) joined with the other ends of the valves, and an elastic member(76) joined with the valves to impart elastic force to the valves in a direction that the valves advance into the cavity.
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