Restricted gates are used in multi-cavity moulds where they perform the
following major functions :
1; provide a point between the part and the runner with low mechanical strength,
allowing easy separation.
2; provide a point in the runner system with a large surface-to-volume ratio which
will freeze rapidly when flow stops, sealing the cavity.
3; create a back pressure in the runner system to promote equal filling of all cavities
simultaneously.
following major functions :
1; provide a point between the part and the runner with low mechanical strength,
allowing easy separation.
2; provide a point in the runner system with a large surface-to-volume ratio which
will freeze rapidly when flow stops, sealing the cavity.
3; create a back pressure in the runner system to promote equal filling of all cavities
simultaneously.
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