Process Powder injection moulding
Mainly for small parts which require accurate and complex geometry. Ceramic or metal powders mixed with a plastic substance are heated, and then injected into the mould.

For ceramic powders, water (traditional ceramics) or organic materials such as plasticizers (technical ceramics) are added to provide adequate plasticity for forming.

The major difficulty is removing the organic material prior to firing, without causing cracks or distortions.
Production volumes are medium to large.
Danish Name Pulversprøjtestøbning
Category Mass conserving processes, Powder technology
Materials Ceramics
Metal powders
Competing processes Powder extrusion
Investment (lost wax) casting
References Modern Ceramic Engineer
Metalor 2000
Additional info Possible to achieve good dimensional accuracy and surface finish.
Photo Thomas Nissen (Computer graphics)
Copyright © 1996-2019 Torben Lenau
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