Industry glossary

Terms you will meet in the documents, systems and scenarios.

The controlled record of the validated process settings, inspection points and limits for a tool, die or line that every run is set up from.

The first parts or length produced after setup, measured and approved against the drawing and setting sheet before the run continues.

A moulding defect where the cavity does not fill completely, often caused by blocked vents, low pressure or a cold melt.

Granulated runners and scrap of the same material that are blended back into virgin material at the percentage allowed on the setting sheet.

The cooled, vacuum sizing sleeve after the extrusion die that sets the outside diameter of a pipe as it solidifies.

Molten material pushed out of a barrel or die during cleaning or changeover, which is hot and must be handled with heat-resistant gloves.

A laboratory instrument that measures the cure curve of a rubber compound, giving scorch time, cure time and torque against acceptance limits.

A conveyor belt joint in which each ply is stepped back a set length so the plies overlap and are vulcanised together under heat and pressure.

Twisting a number of fine wires together to form a flexible conductor of the required cross-sectional area.

Applying a personal lock and tag to an isolated energy source so that a machine cannot be started while a person is working on it.