Device for testing thermal conductivity of aluminum-silicon alloy cast ingot

The invention relates to the technical field of thermal conductivity testing, and discloses an aluminum-silicon alloy cast ingot thermal conductivity testing device which comprises a device body, a display screen arranged on the front face of the device body, an operation panel, a testing cabin, a cabin door arranged in front of the testing cabin, an equipment cabin arranged on the back face of the device body and power equipment arranged in the equipment cabin. The pushing assembly and the testing plate are arranged in the testing cabin. According to the aluminum-silicon alloy cast ingot thermal conductivity testing device, a plurality of top pressing blocks and connecting rods are arranged between the base and the top pressing plate, so that during working, the pressure borne by the top pressing plate can be more uniform, the possibility of deformation of the top pressing plate is reduced, meanwhile, a test plate extruded by the top pressing plate is protected, and the thermal conductivity of the aluminum-s