core pin

Core pins are used to produce holes in plastic parts.

Providing a radius on the core pin helps in avoiding a sharp corner.

In addition, the core pin will be difficult to cool, can extend the cycle time and affect the cored hole dimensionally.

Holes in the bottom of a part are better than holes in side, which require retractable core pins.

Local Hot Spots should be reduced by using cool pipes or conductive metal cores, core pins and sprue bushes.

After the metal has cooled, the external ceramic/clay is chipped away, revealing an image of the wax form, including core pins, sprues, vents, and risers.

Use overlapping and offset mold cavity projections instead of core pins to produce holes parallel to the die parting line (perpendicular to the mold movement direction).

The molten polymer is fed into a hot runner manifold where it is injected through nozzles into a heated cavity and core pin.

A through hole is preferred over a blind hole because core pin that produces a hole, can be supported at both ends and is less likely to bend.

The H-core is interesting because it performs far more efficiently than conventional noise sensing bobbins using steel core pins, requiring less turns of copper wire to produce the required hum voltage.

Rack Pins - Rack pins, also called Open Edition (OE) or core pins, are pins introduced and sold until they are discontinued or retired.

In the IBM process, the polymer is injection molded onto a core pin; then the core pin is rotated to a blow molding station to be inflated and cooled.