Back to results
US 11,413,681 B2Granted
Die casting method and die casting device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsYoshiki Matsuura, Junji Asano
Life of this patent
Estimating the term…
Abstract
A die casting method includes a step of supplying molten metal to a plunger sleeve, and a step of advancing a plunger in the plunger sleeve, to inject the molten metal into dies. In the step of injecting the molten metal into the dies, the plunger is once retracted before being advanced, and the plunger is kept accelerated until the plunger reaches a target maximum speed when the plunger retracted is advanced.
Claims8
A die casting method comprising:
- supplying molten metal to a plunger sleeve;
- after supplying the molten metal to the plunger sleeve, retracting a plunger once;
- and
- after the plunger is once retracted, advancing the plunger in the plunger sleeve, to inject the molten metal into dies,
- wherein, the plunger is kept accelerated until the plunger reaches a target maximum speed when the retracted plunger is advanced.
2 more elements
A die casting device comprising:
- a plunger sleeve configured to be supplied with molten metal via a supply port;
- dies that communicate with the plunger sleeve;
- a plunger configured to inject the molten metal supplied to the plunger sleeve, into the dies;
- and
- a controller programmed to:
- after the molten metal is supplied to the plunger sleeve, retract the plunger once;
- and
- after the plunger is once retracted, advance the plunger to inject the molten metal into the dies, and keep the plunger accelerated until the plunger reaches a target maximum speed when the retracted plunger is advanced.
5 more elements
Dependencies are inferred from the claim text.