Gas-assisted products are very common, such as gas assisted chair, gas assisted automotive parts and so on. Thus, the gas-assisted injection molding process is crucial to products.
As for gas needle type panel mould, when press the air into gas needle, it is easier to produce inlet imbalance which will increase difficulties to debugging. The main phenomenon is shrinkage. In this case, we always check the gas fluency when deflate.
The temperature of the plastic is one of the main factors which will influence the normal production. The quality of the gas assisted products is very sensitive to the plastic temperature. If the temperature of the plastic in the nozzle is high, it will cause the phenomenon of burning and silver streaks. On the contrary, if the temperature of the plastic in the nozzle is low, it may generate cold glue, cold nozzle, seal gas needle and other phenomena. And the products always appear shrinkage and silver streaks. What we can do is to check whether the temperature of the plastic is reasonable.
Check whether the gas assist induction switch is sensitive or not. Otherwise, it will cause a lot of unnecessary losses.
The pressure maintaining of gas assisted products depends on the gas. When the shrinkage of products happens, we can reduce the plastic to prevent this trend. This measure is always adopted to reduce the pressure and apace of the inner of the products, and then the gas will be easier to penetrate the thick plastic place to fill pressure.
Welcome to Chinese professional mould manufacturer——Sino Mould. We have much experience in this field. If you are interested in our moulds or any other product, please don’t hesitate to contact me for molds and plastic molding service.
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