Pipe Nipples

These extensions to the waterline from the component allow hoses or connectors to be added between the component and the plate. The mold set up department should make sure that the fittings do not restrict the water flow. Sometimes, inadvertently, the flow will be impeded the water flow and will become laminar, reducing the effectiveness […]

Pipe Fittings

These are standard pipes that allow for quick disconnects. They are used to connect the hoses to the water manifold to the press. In some case quick disconnects are added to so the mold setting time is reduced. Care must be taken when using the quick disconnects so they do not impede the flow of […]

Pinpoint Gate

Gate in an injection mold that is approximately 0.030 inches in diameter. This small gate minimizes the size of the mark left on the molded part.

Pigment

Colorant added into Silicone to produce a wide variety of colors.

Packing

Filling the mold cavity/cavities as full as possible without causing undue stress on the molds or causing flash to appear on the molding.

Orange Peel

An uneven surface somewhat resembling that of an orange peel.

OD Grinder

These are used for round work, diameters, grooves, angles, tapers, shoulders, and heels.

O-Rings

These are used to keep intersecting water lines from leaking between plates or components. 0-rings will become brittle after time and should be replaced periodically. The o-rings come in standard sizes and are very low in cost. When installed, a combination of o-ring grease and the o-ring groove construction prevents the o-rings from leaking. The […]

Mounting Holes

Now that the holes in the molding plates have been standardized many molders are requesting that the molds be mounted in the press with bolt holes in the mold base that line up with the platen tapped holes. The designer must make sure that there is proper clearance between the mold base and the screw […]

Mold Plate Sequencing

This is used to allow steel cores to be removed in sequence to allow for undercuts to flex out of the mold with out shearing. The proper sequence must take place so the designer has several methods for insuring the sequence. Below are listed some of the most common methods. There are also standard sequencing […]