Method for producing high-strength composite plastic template

The invention relates to a method for producing a high-strength composite plastic template which comprises an upper and a lower composite layers and a core layer. The method for producing the high-strength composite plastic template comprises the following steps: loading the core layer raw material into a high-speed mixer to be mixed, feeding the mixed material into a twin-screw extruder by a feeder, extruding the extruded material into a core layer extruder, feeding the raw materials of the composites layers to a plastic extruder, extruding the extruded core layer raw material, the upper and lower composite layer raw materials into a mould, clamping the two or more layers of glass mats (fiber cloth, fiber mesh cloth and aluminum plates) into the raw material by the mould, cooling and cutting the template into the finished product by using embossing or forming equipment. The invention ensures that the plastic template can be formed into various patterned flat plates and specially-shaped templates in one time,