I received an email from a blog reader about another benefit to increasing injection velocity…
Harry
Another reason we use a higher injection velocity in our facility is to increase the amount of packing that is possible.
My Comments
This is correct because of two reasons. First, the gate begins to freeze the moment the material enters the gate. The shorter time required to fill the mold allows more time for packing. The second reason is because the pressure loss within the mold cavity is decreased, allowing more packing pressure to reach the extremities of the mold during packing.
-Andy
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