Abstract: A molten metal feed pipe for feeding a molten metal of an nonferrous alloy includes an outer tube made of a ferrous material, an inner tube made of a molten metal resistant material, and an intermediate member made of a compact of a fibrous non-organic material, which is disposed between the outer tube and the inner tube. The intermediate member, positioned in the central region of the molten metal feed pipe with respect to the longitudinal axial direction of the molten metal feed pipe, is disposed between the outer tube and the inner tube with the intermediate member being compressed in a radial direction of the molten metal feed pipe.

Abstract: A die casting machine includes a plurality of ejector pins capable of advancing and retracting together with respect to the internal portion of a die; an electric motor capable of driving the plurality of ejector pins; a position sensor capable of detecting the positions of the plurality of ejector pins; a force sensor capable of detecting the pressure which is given to the molding material inside the die by the plurality of ejector pins; a display device capable of displaying images, and a control device controlling the electric motor and display device. The control device includes a drive control part which controls the electric motor so as to generate a driving force making the plurality of ejector pins advance to the inside of the die after the start of injection and before die opening, and a display control part which controls the display device so as to display the position detected by a position sensor and the pressure detected by a force sensor along a common time axis.

Abstract: A die casting machine includes a plurality of ejector pins capable of advancing and retracting together with respect to the internal portion of a die; an electric motor capable of driving the plurality of ejector pins; a position sensor capable of detecting the positions of the plurality of ejector pins; a force sensor capable of detecting the pressure which is given to the molding material inside the die by the plurality of ejector pins; a display device capable of displaying images, and a control device controlling the electric motor and display device. The control device includes a drive control part which controls the electric motor so as to generate a driving force making the plurality of ejector pins advance to the inside of the die after the start of injection and before die opening, and a display control part which controls the display device so as to display the position detected by a position sensor and the pressure detected by a force sensor along a common time axis.

Abstract: A molten metal feed pipe for feeding a molten metal of an nonferrous alloy includes an outer tube made of a ferrous material, an inner tube made of a molten metal resistant material, and an intermediate member made of a compact of a fibrous non-organic material, which is disposed between the outer tube and the inner tube. The intermediate member, positioned in the central region of the molten metal feed pipe with respect to the longitudinal axial direction of the molten metal feed pipe, is disposed between the outer tube and the inner tube with the intermediate member being compressed in a radial direction of the molten metal feed pipe.

Abstract: A die cast machine which has a mold opening and closing device having a die plate driving device which drives a movable die plate holding a moving mold, a spray device having a head driving device which advances and retracts a spray head to and from a space between a fixed mold and a moving mold, and a control device which controls the spray device and a mold opening and closing device so as to make the movable die plate move in a mold opening-closing direction during a spray process of ejecting a mold releasing agent from the spray head or during an air blowing process of ejecting air from the spray head.