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Countermeasure against deformation in long and thin molded product

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Countermeasure against deformation in long and thin molded product

Issue Time:2020-08-11
(1) Long and thin will be greatly affected by the gate design, and it should be a design that resin flows towards
longitudinal direction. If the flow distance is short, the end gate from one end will be suitable to prevent
deformation.
(2) If the flow distance is long, there need to be a multipoint gate. In this case, attention against weld location
is required. If the width of the molded product is large, setting up the multipoint pin gate on the centerline
is good.
(B) End gate 
(C) Multipoint gat
Figure 3-7 Gate location and deformation of long and thin molded product