• The screw rotation speed of the large injection moulding machine

    The screw rotation speed of the large injection moulding machine

    The rotational speed of the screw significantly affects the degree of stability of the injection moulding process and the amount of heat acting on the plastic. The faster the screw rotates, the higher the temperature. When the screw rotates at a high speed, the friction (shear) energy transmitted to... read more

    Feb 18,2019 Industry News
  • Many injection moulding machines are equipped with screw retracting

    Many injection moulding machines are equipped with screw retracting

    In order to prevent plastic from flowing out of the nozzle, a decompression (rewinding) device or a special shooting nozzle is also installed. If you use a stop-flow production and supply, you must check it regularly because it is an important part of the shooting tank. At present, switch-type nozzl... read more

    Feb 11,2019 Industry News
  • The defination of vented injection moulding machine

    The defination of vented injection moulding machine

    Some plastics need to be vented in the shooting tank during injection moulding to allow the gas to escape. In most cases these gases are only air, but they may be melted moisture or monomolecular gases. If these gases are not released, the gas will be compressed by the melt and brought into the moul... read more

    Jan 31,2019 Industry News
  • Open nozzles should be used more in injection molding

    Open nozzles should be used more in injection molding

    The melt usually flows from the nozzle into the nozzle, but with some moulds, the nozzle is part of the mould because it extends to the bottom of the mould. There are two main types of nozzles: open shot nozzles and closed nozzles. In injection moulding, open nozzles should be used more because they... read more

    Jan 26,2019 Industry News
  • Reasons for poor gloss of plastic parts

    Reasons for poor gloss of plastic parts

    1. The difference in the particle size of the raw materials is large, making it difficult to uniformly plasticize and the gloss is poor. For this, the raw materials should be sieved. 2. The regeneration material or the nozzle material in the raw material is added too much, which affects the uniform ... read more

    Jan 19,2019 Industry News