Peek (polyether ether ketone) is widely considered as one of the best thermoplastic materials on the market. Peek is a semi crystalline thermoplastic with excellent wear resistance, chemical resistance and hydrolysis resistance. In many cases, additives are not required. Peek injection molding products have been widely used in aerospace, automotive industry, electronic and electrical, medical machinery and other fields.

PEEK注塑成型温度约在320度~390度；烘料温度160~185，5H~8H；注塑模具温度140~180。这种材料成型温度太高，对螺杆损伤比较严重，在设定螺杆转速时速度不能太快，型结束后应及时用PE蜡快速清洗螺杆，不能让PEEK的材料停留在螺杆，不然在内结构二次加热的原料损伤更为严重。选择PEEK材料注塑的螺杆一定要搞质量的合金螺杆。