To determine if the quality of the production can be maintained throughout the production process, a simple formula for yield and plasticizing capacity can be used. Note that when injection moulding thin-wall or precision-tolerant products, the amount of shot and the amount of plasticization must ma... read more
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
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
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
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
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