the design must comply with a number of technical guidelines
to ensure quality for most products. Here are some materials
need to comply with rules:
+ Reduced to a minimum change the channel cross section.
+ Plastics in the mold channel to drain easily.
+ The entire canal length should be as short as possible, to be able to
quickly fill the cavity but avoid loss of pressure
and heat loss during filling.
+ the size of the plastic channels depending on the type of materials that
are different. A plastic channel side must be small enough to reduce the waste
of raw, cold shortening (affecting the production cycle of
product), reduced clamping force. On the other hand must be large enough to transfer a
significant amount of material to fill the cavity quickly
and less pressure loss.
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