Compounds for Metal Injection Molding

PolyMIM produces compounds for metal injection molding (MIM) in Bad Sobernheim. MIM is a state-of-the-art technology for the production of sintered metal parts. It allows for the cost-effective production of precision metal components with complex geometries that do not require subsequent machining.

Typical industries for metal powder compounds are:

  • Electronics
  • Automotive
  • Medical
  • Aerospace
  • Precision mechanics (glasses, watches, jewelry)

Solving the Unsolvable

MIM uses compounds with high metal powder content (feedstock), which can be processed using common injection molding technology, and thus benefit from the great geometric flexibility of modern injection molding tools. It offers manufacturers of metal components exceptional possibilities, ranging from undercuts in simple shapes via threaded parts to 2-component injection molding.

In order to transform the injection-molded component into a solid, sintered metal part, it is first necessary to remove the plastic component, also known as the binder, from the compound. The part is then sintered in a furnace at temperatures of around 1,300 °C and achieves a density of up to 99% – yet another advantage over conventional sintered parts.

Processing Parameters for the Entire Process Chain

PolyMIM gives customers the choice between two binder systems: polyMIM®, the environmentally friendly water-soluble binder system, and polyPOM®, the catalytic debinding system. Both systems offer tailored solutions for numerous applications and combine good processing properties with high mechanical strength of the injection molded parts (green part). They excel with short debinding cycles, high dimensional accuracy, and good reproducibility. 

PolyMIM supports customers in their development of the processing parameters for the entire process chain, from metal injection molding to debinding and sintering, both for standard and customer-specific compounds.