Orgasol^® powder: A binder for powder injection molding feedstocks

Plastic magnets

Orgasol^® powder is used as a binder with soft magnetic material powders (such as metal oxides and rare earths). After being compounded and injected into pellets, the blend produces high quality magnets.

Orgasol^® acts as a solid lubricant, facilitating the powder-blending step. During the compounding and injection step, Orgasol^® powder helps to maintain a low melt viscosity.

This low viscosity allows higher amounts of soft magnetic powder in the compound. This is the key to creating thinner plastic magnet parts.

Compared to other polymers, Orgasol^® polyamide powder achieves high mechanical properties while reducing the sensitivity of the plastic magnets to humidity.

Metal injection molding (MIM)

One challenge in metal injection molding technology is making tiny, molded parts at high yield, like those used in medical implants, digital cameras, and automotive engines.

Due to its small and defined particle size, Orgasol^® acts as a solid lubricant, improving the homogeneity of the powder-blending step.

Due to its mechanical properties and capacity to bond metallic powders, Orgasol^® is a major component used in the binder that strengthens the final green parts, allowing them to be quickly ejected from the mold without damage.

The melting temperature of copolyamide Orgasol^® (around 143°C) is also very suitable for manufacturing and processing of the MIM feedstocks.

The final processing step is to get rid of the thermoplastic binder by pyrolysis at a high temperature (>500°C). The advantage of Orgasol^® ultrafine polyamide powder is that it doesn't emit toxic compounds during pyrolysis.