For products with ribs, lugs protruding, deep groove ... we should design the mold opening angle to the exit site is easy.
The value depends on the beveled corner of the plastic shrinkage and bevelled height. Usually about 0.25 to 3 degrees to each side. However, for those products should taper in height from 5 mm or less, we do not need to create a mold for drainage angle of friction between the product and the mold is not great due to the disposal in the process of cooling should be real phaamr easily removed.
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