Such as "computer embroidery processes" - Programming - sample preparation, shipment packing production computer
Process flow of plastic products1. Preparation before moldingA, grain preheating and drying: if the grain is affected with damp, it should be dried;B, insert preheating: in order to reduce the gap between the cooling shrinkage value of metal and plastic, the larger metal insert should be preheated.C, barrel cleaning: when changing the product, changing the raw materials, cleaning cylinder is required.2, injection molding process feeding - plasticizing - injection - holding pressure - cooling - die opening piecesA, feeding: each feeding should be quantitative, in order to ensure uniform plasticization;B and plasticization: the grains are heated to a molten state in a barrel;C and injection: the injection molding machine uses a screw to inject molten plastic into the mold cavity;D, keep pressure: after the mold is finished, maintain the pressure for a certain time;E and cooling: keep cool for a certain time in the mold cavity;F, mold opening parts: mold open, take out the product.3, plastic parts after treatment: plastic parts after treatment:A, remove the fly edge, material handle.B, inspection and packing.
