A casting system includes a first mold, a second mold, the first mold and the second mold being configured to receive molten metal, the first mold and the second mold exerting pressure on the molten metal to form a mechanical component as the molten metal cools, and a sensor that measures the pressure exerted on the molten metal to provide feedback information to regulate the pressure exerted on the molten metal.

A sprue for a low-pressure casting device includes a stalk connection part to be connected to a stalk, a molten metal reservoir and a cavity connection part to be connected to the cavity. The shape of the molten metal reservoir is such that the perimeter of the cross section perpendicular to the flow direction of molten metal gradually increases toward the cavity connection part while the area of the cross section remains constant.

A sprue for a low-pressure casting device includes a stalk connection part to be connected to a stalk, a molten metal reservoir and a cavity connection part to be connected to the cavity. The shape of the molten metal reservoir is such that the perimeter of the cross section perpendicular to the flow direction of molten metal gradually increases toward the cavity connection part while the area of the cross section remains constant.

Provided is a low-pressure casting apparatus for stable casting without using feedback control even if a furnace body has a crack, and a low-pressure casting method using the same. A low-pressure casting apparatus fills a cavity with molten metal M through a guiding unit by introducing gas into a holding furnace for heating the molten metal M to apply pressure to a surface of the molten metal M. The holding furnace includes a casing, a furnace body accommodated in the casing, and a refractory layer disposed between the casing and the furnace body, the refractory layer having a pore structure. The low-pressure casting apparatus further includes a first gas supply unit for supplying to the furnace body the gas to apply pressure to the molten metal M and a second gas supply unit for supplying gas to the refractory layer.

Provided is a low-pressure casting apparatus for stable casting without using feedback control even if a furnace body has a crack, and a low-pressure casting method using the same. A low-pressure casting apparatus fills a cavity with molten metal M through a guiding unit by introducing gas into a holding furnace for heating the molten metal M to apply pressure to a surface of the molten metal M. The holding furnace includes a casing, a furnace body accommodated in the casing, and a refractory layer disposed between the casing and the furnace body, the refractory layer having a pore structure. The low-pressure casting apparatus further includes a first gas supply unit for supplying to the furnace body the gas to apply pressure to the molten metal M and a second gas supply unit for supplying gas to the refractory layer.

A method for producing a vehicle wheel from a light metal material is disclosed herein. The light metal material is introduced in liquid form into a mold cavity of a casting mold and pressurized casting is then used to produce the vehicle wheel. The casting mold is temperature-controlled, where different regions of the casting mold are maintained at different temperatures. An apparatus that includes the disclosed casting mold is also described herein.

A method for producing a vehicle wheel from a light metal material is disclosed herein. The light metal material is introduced in liquid form into a mold cavity of a casting mold and pressurized casting is then used to produce the vehicle wheel. The casting mold is temperature-controlled, where different regions of the casting mold are maintained at different temperatures. An apparatus that includes the disclosed casting mold is also described herein.

A method and apparatus for tapping molten metal are provided. The apparatus includes a tapping chamber, a molten metal holding chamber, a regulation part for allowing or shutting off transfer of the molten metal from the holding chamber into the tapping chamber, a tapping channel at the tapping chamber for tapping the molten metal outside, and a gas supply part capable of supplying gas from outside into the tapping chamber. The method includes transferring the molten metal by natural flow down due to difference in level of the molten metal between the holding chamber and the tapping chamber or by pressure of gas supplied through a pressurizing part capable of supplying gas from outside into the holding chamber. The method further includes tapping the molten metal in the tapping chamber though the tapping channel into a target place by pressure of gas supplied through the gas supply part.

A method and apparatus for tapping molten metal are provided. The apparatus includes a tapping chamber, a molten metal holding chamber, a regulation part for allowing or shutting off transfer of the molten metal from the holding chamber into the tapping chamber, a tapping channel at the tapping chamber for tapping the molten metal outside, and a gas supply part capable of supplying gas from outside into the tapping chamber. The method includes transferring the molten metal by natural flow down due to difference in level of the molten metal between the holding chamber and the tapping chamber or by pressure of gas supplied through a pressurizing part capable of supplying gas from outside into the holding chamber. The method further includes tapping the molten metal in the tapping chamber though the tapping channel into a target place by pressure of gas supplied through the gas supply part.

The hot forging mold device for low-pressure casting includes an upper and lower mold forming a cavity, a riser cavity that supplies molten metal, and a press device positioned above the riser cavity to apply pressure. A sensor and controller can adjust pressure based on the molten metal's temperature or fill level. Cooling fluid circulates through a cylinder base plate, and an insulating plate reduces heat transfer. An ejection device, moved by an actuator, removes the solidified cast product. Guide blocks help align components, and a leakage preventing plate with a seal helps avoid fluid intrusion. The overall design ensures efficient feeding of molten metal, controlled forging pressure, and reliable ejection, improving casting quality and reducing defects.