EVA TPU PE Sole Foaming Machine is one kind of physical foaming equipment which uses supercritical fluid foaming technology to inject carbon dioxide or nitrogen as the foami ng medium into the supercritical foaming equipment, so that the gas and the molten raw material are fully mixed and diffused to form a single-phase mixed sol, which produces a large amount of sol. The pressure drop caused the gas to separate out to form a large number of bubble nuclei. In the subsequent cooling and molding process, the bubble nucleus inside the sol continuously grows and forms, thereby obtaining a microcellular foamed plastic product. The supercritical foaming equipment is an important equipment to realize this process.
supercritical foaming autoclave equipment for experiment adopts high-pressure physical foaming molding technology, which is also a microcellular foaming molding technology. First, supercritical carbon dioxide or nitrogen and other gases are injected into a special plasticizing device to melt the gas. After the raw materials are fully uniformly mixed and diffused, a single-phase mixed sol is formed, and then the sol is introduced into the mold cavity or extrusion die to cause the sol to generate a large pressure drop, thereby causing the gas to precipitate to form a large number of bubble nuclei; in the subsequent cooling and molding During the process, the bubble nucleus inside the sol continuously grows and forms, and a foamed molded product is obtained.Compared with the equipment used for mass production, the volume of the foaming equipment for experiment is smaller, lighter in weight, and small in volume. It is mainly used in the experimental product testing stage at the initial stage of the product to find out the pressure and temperature data required for the product to be suitable for foaming.
