INJECTION DEVICE FOR DIE CASTING MACHINE
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United States of America Patent
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Issued Date -
Oct 1, 2009
app pub date -
Sep 19, 2007
filing date -
Sep 20, 2006
priority date (Note) -
Abandoned
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Abstract
In a hybrid injection system of a die casting machine, the occurrence of a large electric power loss can be prevented by avoiding a large current at a pressure-holding step and the size of a motor is reduced.), it is possible for the pressure of the hydraulic oil to act on a head area of the electric booster at a pressure-increasing step for increasing pressure of the molten metal, and for pressure of the hydraulic oil to act on a rod area of the electric booster at a pressure-holding step for holding pressure of the molten metal.
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