The low temperature of the injection machine can indeed cause to incomplete filling of the mold. The temperature of the injection mold is a crucial variable in the injection molding process, which directly affects the fluidity and filling effect of the melt. Here are the specific reasons:
Firstly, the low temperature of the injection mold will reduce the fluidity of the melt. The viscosity of the melt increases and its fluidity deteriorates at low temperatures, resulting in increased resistance when filling the mold, making it difficult to fully fill every corner and detail of the mold.
Secondly, low mold temperature can also affect the crystallinity of plastics. For certain plastics, such as ABS, a low mold temperature can cause to a decrease in product smoothness and an increase in crystallinity, further affecting the flowability and filling effect of the plastic.
In addition, the low temperature of the injection machine may also cause the melt to cool too quickly inside the mold, resulting in solidification before the mold is fully filled, cause to incomplete filling.
Therefore, in order to ensure the quality of injection molding, it is necessary to control the temperature of the injection machine reasonably and ensure that the mold temperature is within a suitable range. If the problem of incomplete filling of the mold is found, it can be solved by increasing the temperature of the injection machine, improving the mold design, optimizing the injection molding process, and other aspects.
Overall, the low temperature of injection machines is an important reason for incomplete mold filling, which requires sufficient attention and corresponding measures to be taken to solve.