A hot metal supply injection method includes generating a negative pressure in a cylindrical container by a negative pressure generation device, and causing molten metal to be sucked into the cylindrical container from a retention furnace, while keeping an opening portion of the cylindrical container immersed in the molten metal, arranging the opening portion of the cylindrical container in a gate of a cavity while holding the negative pressure by closing up the opening portion of the cylindrical container after moving an inner plunger tip to a tip side of the cylindrical container, and moving the inner plunger tip to a rear end side of the cylindrical container, then moving an outer plunger tip, together with the inner plunger tip, to the tip side of the cylindrical container, and filling the interior of the cavity with the molten metal through injection via the gate.

A hot metal supply injection method includes generating a negative pressure in a cylindrical container by a negative pressure generation device, and causing molten metal to be sucked into the cylindrical container from a retention furnace, while keeping an opening portion of the cylindrical container immersed in the molten metal, arranging the opening portion of the cylindrical container in a gate of a cavity while holding the negative pressure by closing up the opening portion of the cylindrical container after moving an inner plunger tip to a tip side of the cylindrical container, and moving the inner plunger tip to a rear end side of the cylindrical container, then moving an outer plunger tip, together with the inner plunger tip, to the tip side of the cylindrical container, and filling the interior of the cavity with the molten metal through injection via the gate.

A casting device includes a bore formation core and a water jacket formation core. When a cavity is formed, gas existing in a space between both cores is suctioned through a flow path formed in the bore formation core under operation of a suctioning device. When the bore formation core is viewed from a side, this flow path exists above a virtual axial line that passes a center of the bore formation core and extends along a longitudinal direction of the bore formation core.

A casting device includes a bore formation core and a water jacket formation core. When a cavity is formed, gas existing in a space between both cores is suctioned through a flow path formed in the bore formation core under operation of a suctioning device. When the bore formation core is viewed from a side, this flow path exists above a virtual axial line that passes a center of the bore formation core and extends along a longitudinal direction of the bore formation core.

A venting device for venting a casting mold in the form of a chill vent having two mold halves which oppose each other and are complementary to each other in form and function, each mold half having a plurality of elevations and indentations in the areas facing each other and the elevations of one mold half engaging with the indentations of the second mold half, and a gap being formed between the two mold halves when the mold halves are placed on each other, air and surplus molten material flowing out through said gap when the casting mold is being filled, the gap having, in the flow direction of the molten material, a saw-toothed course having several sawtooth portions disposed in a row in the flow direction, each sawtooth portion having a leading edge inclined in the flow direction and a trailing edge inclined against the flow direction.

A casting device of a large non-ferrous metal thin-walled structural component. A liquid outlet of the casting device is communicated with a casting sand box. The casting device comprises an L-shaped liquid storage cylinder, a pressure supplying cylinder, and a crystallization treater. Protective gas with the first gas pressure can be inflated into the top of the L-shaped liquid storage cylinder. The pressure supplying cylinder and the L-shaped liquid storage cylinder are integrally connected to form a U-shaped tube connector. Protective gas with the second gas pressure can be inflated into the top of the pressure supplying cylinder. A liquid inlet of the crystallization treater is communicated with the pressure supplying cylinder while a liquid outlet is communicated with the pouring system and the mold cavity. The crystallization treater is provided with a grain refining mechanism.

A casting device of a large non-ferrous metal thin-walled structural component. A liquid outlet of the casting device is communicated with a casting sand box. The casting device comprises an L-shaped liquid storage cylinder, a pressure supplying cylinder, and a crystallization treater. Protective gas with the first gas pressure can be inflated into the top of the L-shaped liquid storage cylinder. The pressure supplying cylinder and the L-shaped liquid storage cylinder are integrally connected to form a U-shaped tube connector. Protective gas with the second gas pressure can be inflated into the top of the pressure supplying cylinder. A liquid inlet of the crystallization treater is communicated with the pressure supplying cylinder while a liquid outlet is communicated with the pouring system and the mold cavity. The crystallization treater is provided with a grain refining mechanism.

A device (10) for producing die-cast components with a die-casting mold (12) and a discharge device which is provided for controlled evacuation of a mold cavity. The device (10) includes at least one vacuum unit (18) and at least one suction line (20) which connects the die-casting mold (12). The suction line (20) terminates at a mold vacuum valve (21) in the mold cavity. The device (10) is connected to a central control system (1). A filter module (2) is inserted in the at least one suction line (20). The filter module (2) contains at least one filter, a moisture sensor, and a pressure sensor.

A device (10) for producing die-cast components with a die-casting mold (12) and a discharge device which is provided for controlled evacuation of a mold cavity and which includes at least one vacuum unit (18) and at least one suction line (20) which connects the die-casting mold. The suction line (20) terminates at a mold vacuum valve (21) in the mold cavity. The device is connected to a central control system (1). A filter module (2) is inserted in the at least one suction line (20) which contains at least one filter, a moisture sensor, and a pressure sensor.

A die casting machine is provided with a movable platen for holding a movable mold, a stationary platen for holding a stationary mold, and tie bars inserted into insertion holes provided in the movable platen and the stationary platen, the movable platen being arranged so as to be capable of advancing to and retreating from the fixed platen along the tie bars. A hollow section is provided in at least one of the movable platen and the stationary platen.