Lining plastic production process

The invention discloses a lining plastic production process, which comprises a production device for realizing the lining plastic production process and comprises 10 steps matched with the production process: heating, comparing temperature, uniformly coating PO powder on the inner surface of a workpiece when the temperature of each measuring point of the workpiece is detected to be greater than or equal to 145 DEG C, and ensuring the coating thickness to reach 5mm-25mm according to the working condition requirement of the workpiece; the PO powder can be uniformly coated by virtue of rotation, so that the PO powder can be uniformly filled in an oscillating manner; the temperature of each measuring point detected by the workpiece is kept within the temperature measuring range of 190-200 DEG C, heating is stopped, meanwhile, the workpiece keeps rotating at a constant speed, PO powder is evenly coated, fused and lined, and the device comprises a driving frame, a roller frame, a motor, a cycloidal pin gear speed r