I - Polymer Processing Glossary of Terms
Impact strength - The ability of a material to withstand shock loading. Inert additive - A material added to a plastic compound, such as a filler, which may alter the properties of the finished article but which does not react chemically with any other constituents of the composition. Injection pressure - Pressure exerted on plastic to fill, pack, and hold mold. Comprised of Boost and Hold pressure. Injection ram - The ram which applies pressure to the plunger in the process of injection molding. In-mold decorating - The process of applying labels or decorations to plastic articles simultaneously with the molding operation. Interference fit - The mating of two points, lines, or surfaces, the dimensions of which cause negative clearance between them.