Equipment problem
5) Nozzle cold material into the mold. Injection molding machines are usually equipped with straight through nozzles due to pressure loss. However, if the temperature at the front end of the barrel and the nozzle is too high, or there is too much material stored at the front end of the barrel under high pressure, it will produce “salivation”, —carrier tape in Chinese cheap suppplier
so that the plastic will accidentally enter the main channel inlet first and harden under the cooling effect of the template without starting injection, which will hinder the smooth entry of molten material into the mold cavity. —carrier tape in Chinese cheap suppplier
At this time, reduce the temperature of the front end and nozzle of the barrel, reduce the material storage of the barrel, reduce the back pressure, and avoid excessive melt density at the front end of the barrel.—carrier tape in Chinese cheap suppplier