What is precision injection molding? Precise injection molding, in a strict sense, refers to the injection molding production mode in which the dimensional accuracy of plastic products produced by injection molding machine equipment can be less than 0.01 mm, usually between 0.01 and 0.001 mm.
Precision injection molding is mainly used in aerospace, auto parts, precision instruments, sports equipment, testing tools and other industrial and civil products.
Specific requirements for precision injection molding: first, the injection pressure shall be greater than 25MPa; The injection speed shall be no less than 300mm/s; The dimensional accuracy of products is 0.001 mm; The product quality standard deviation coefficient (change rate) is less than 0.1%; Opening and closing position accuracy: opening ≤ 0.03mm, closing ≤ 0.01; The injection position accuracy (pressure maintaining end point) is less than 0.03mm; The force balance of pull rod is less than 1%; The precision of pre molded position is less than 0.03mm; Balance of fixed and movable formwork A: less than 0.03mm when the clamping force is zero B: less than 0.005mm when the clamping force is maximum; The temperature control accuracy of barrel and screw is less than ± 0.5 ℃.
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