Abstract: An injection assembly, for pressure die casting systems, has an injection cylinder adapted to inject liquid metal into a casting cavity; the injection cylinder is actuated by a hydraulic flow of an oil-pressure controlled circuit; the oil-pressure controlled circuit includes a hydraulic cushion which blocks and releases the flow of the hydraulic fluid in the injection cylinder and provides a counter-pressure of preset value to control the injection speeds and to prevent cavitation in the injection cylinder.

Abstract: An injection assembly, for pressure die casting systems, has an injection cylinder adapted to inject liquid metal into a casting cavity; the injection cylinder is actuated by a hydraulic flow of an oil-pressure controlled circuit; the oil-pressure controlled circuit includes a hydraulic cushion which blocks and releases the flow of the hydraulic fluid in the injection cylinder and provides a counter-pressure of preset value to control the injection speeds and to prevent cavitation in the injection cylinder.

Abstract: In a vacuum-die casting machine comprising a casting mold having stationary and movable mold halves defining therebetween a mold cavity, a casting chamber which is in communication with the mold cavity and includes a piston and an evacuation arrangement connectable to the casting chamber for drawing melt from a melt storage into the casting chamber, a control arrangement is provided for controlling the mold cavity pressure depending on the pressure difference between the mold cavity and a cavity pressure and a counter pressure of the metal melt.

Abstract: An apparatus for checking die castings, comprising: elements for extracting and moving a die casting from a die casting machine, elements for the analysis of the integrity of an extracted die casting and of its geometric and dimensional precision, elements for the thermal mapping of the extracted die casting, an electronic unit for digitizing the data and the parameters acquired by the integrity and geometric and dimensional precision analysis elements and by the thermal mapping elements, and for comparing the acquired data and parameters with corresponding reference design data.

Abstract: In a vacuum-die casting machine comprising a casting mold having stationary and movable mold halves defining therebetween a mold cavity, a casting chamber which is in communication with the mold cavity and includes a piston and an evacuation arrangement connectable to the casting chamber for drawing melt from a melt storage into the casting chamber, a control arrangement is provided for controlling the mold cavity pressure depending on the pressure difference between the mold cavity and a cavity pressure and a counter pressure of the metal melt.