Thermoforming is a kind of special plastic processing method to process thermoplastic sheet into various products. The thermoforming projects include PS, PET, PP, and PLA, which are mainly used to pack sushi takeout, such as a sushi dish, a salad bowl, and a lunch box.
A special plastic processing method for processing thermoplastic sheets into various products. The sheet clip is heated to the softening state on the frame, and under the external force, it is made close to the mold surface to get the shape similar to the shape. After cooling and setting, it is made by dressing. This process is also used for rubber processing. In recent years, new progress has been made in thermoforming, such as the continuous production technology from extruded sheet to thermoforming.
In the market, more and more hot forming products, such as cups, plates, food plate, toys, helmets, and auto parts, building decoration, chemical equipment, etc.. Compared with the injection molding, the thermoforming has the advantages of high production efficiency, less investment in equipment and a larger surface area. For thermoforming plastic mainly include PVC, polystyrene, polyolefin (such as polyethylene, polypropylene) and polyacrylate (such as PMMA) and cellulose (such as nitrocellulose, cellulose acetate plastic, etc.) is also used in the engineering plastic (such as polycarbonate resin, ABS). There are many kinds of thermoforming methods, but they are basically combined or improved on the basis of three methods, vacuum, pressure or mechanical pressure.