Provided are decompression shut-off valve device having high responsiveness and a method for controlling the same. The decompression shut-off valve device 10 includes an on-off valve 30, a detection pin 50, and an interlocking member 60 which operates the on-off valve 30 by displacement of the pressure-receiving section 52, a valve chamber 31, an accommodating chamber 17, and a cylinder 40 which accommodates an enlarged diameter section 37 provided in a rod section 33 of the on-off valve 30. The rod section 33 is slidably held through a second partition wall 18, and a rod end portion 36 of the rod section 33 is connected to the detection pin 50 via the interlocking member 60. The cylinder 40 is partitioned into a small diameter low-pressure chamber 80, and a large diameter high-pressure chamber 70 in which the working fluid having a higher pressure than the low-pressure chamber 80 is accommodated.

There is proposed 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 comprises at least one vacuum unit (18) and at least one suction line (20) which connects the die-casting mold, wherein the suction line (20) terminates at a mold vacuum valve (21) in the mold cavity, wherein the device is connected to a central control system (1), wherein there is inserted in the at least one suction line (20) a filter module (2) which contains at least one filter, a moisture sensor, a pressure sensor.

There is proposed 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 comprises at least one vacuum unit (18) and at least one suction line (20) which connects the die-casting mold, wherein the suction line (20) terminates at a mold vacuum valve (21) in the mold cavity, wherein the device is connected to a central control system (1), wherein there is inserted in the at least one suction fine (20) a filter module (2) which contains at least one filter, a moisture sensor, a pressure sensor.

Provided are a casting die inspection method and a casting device, the method including: a step for acquiring the ultimate pressure in a cavity section, at the time when a prescribed vacuuming time has elapsed since evacuation the inside of the cavity section of the casting die was started; a step for evacuating the inside of the cavity section and acquiring an increased pressure in the cavity section that has increased during a prescribed stop time, at the time when the prescribed stop time has elapsed since the evacuation was stopped; a step for evaluating a first sealing property of the casting device on the basis of the ultimate pressure; and a step for evaluating a second sealing property of the casting device on the basis of the increased pressure.

A pressure receiving pin includes a fitting portion in a through hole of a fixed mold that communicates with a portion of an exhaust passage on an inlet side, a columnar distal end portion located coaxially with the fitting portion while closer to the exhaust passage that slides with respect to the through hole upon reception of molten metal, and an intermediate portion also located coaxially between the fitting portion and the distal end portion and that has a diameter smaller than a diameter of the distal end portion. An air supply device supplies air when a movable mold is opened such that the air passes through gaps formed between an outer peripheral surface of the intermediate portion and an inner peripheral surface of the through hole and between the distal end portion and the fixed mold, and flows out to the movable mold.

The present invention discloses a new process for the injection of metallic materials into polymer-based moulds, the mould itself required for a process of this nature, and the apparatus which will execute the process and will employ the mould, in such a way that moulds with greater or lesser properties of flexibility are subjected to a pressurised injection of metal thereon, it being possible to adjust and coordinate the parameters of pressure, flowrate, closure of the mould, and the conditions of the material, thanks to a new polymer-based mould which adapts its configuration to the rest of the system and to the pressurised injection of the material.

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.

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.

The present disclosure concerns a foundry alloy suitable for casting operations which lack beryllium. The foundry alloy comprises, in weight percent, Mg (between about 1.0 and about 17.0), Fe (between about 0.5 and about 1.8), one of Ca (between about 0.003 and about 6.0) or Sr (between about 0.003 and about 2.5), optionally a grain refiner and the balance being aluminum and unavoidable impurities. The foundry alloy can be used in a process for making a cast aluminum product, for reducing Mg loss and/or dross generation during the casting operation.

The present disclosure concerns a foundry alloy suitable for casting operations which lack beryllium. The foundry alloy comprises, in weight percent, Mg (between about 1.0 and about 17.0), Fe (between about 0.5 and about 1.8), one of Ca (between about 0.003 and about 6.0) or Sr (between about 0.003 and about 2.5), optionally a grain refiner and the balance being aluminum and unavoidable impurities. The foundry alloy can be used in a process for making a cast aluminum product, for reducing Mg loss and/or dross generation during the casting operation.