▎ 摘　　要

NOVELTY - This new type utility claims one a high strength screw, include feeding section, cutting section, barrier section and mixing section, a feeding section, cutting section, barrier section and section outer surface are set with one graphene layer. This utility new type increase the strength of screw and reduces the breaking condition of screw, speed up the transmission of temperature between each section screw rod, the plastic has carbide or burning of the condition.