Supercritical fluid-assisted polymer mould foaming apparatus

The invention provides a supercritical fluid-assisted polymer mould foaming apparatus, comprising a supercritical fluid conveying system, a mould system, a temperature measuring device, a pressure measuring device, a pressure relief device, a display and control system, etc., wherein the supercritical fluid conveying system is connected with the mould system, the temperature measuring device, the pressure measuring device and the pressure relief device are respectively connected with the mould system, and the mould system carries out heating by using upper and lower hot plates of a moulding press. In virtue of ultra-strong penetration and diffusion capability of a supercritical fluid, the supercritical fluid gradually diffuses into a polymer matrix under the action of a certain temperature and supercritical fluid pressure in a certain period of time, and then pressure is rapidly released so as to obtain a foamed material with a certain shape. The apparatus can be used for supercritical fluid foaming of thermo