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Axon Cable creates PTFE insulation process

Axon Cable

PTFE insulation process

Axon Cable, a French electronic cables specialist, has developed a manufacturing process that enables bare copper wires to be insulated with polytetrafluoroethylene (PTFE) without oxidising them.

This technology is designed for applications working under temperatures of 200C.

Axon's patented process enables extruded PTFE to be applied to a conductive copper core without damaging the surface of the conductor.

This is intended to avoid oxidation and help preserve the qualities of copper to ensure good connections.

Previously, a manufacturing process that did not oxidise copper had only been used with bare copper wires insulated with silicone or thermoplastic insulating materials such as perfluoroalkoxy (PFA).

The new Axon process is said to provide a more economical alternative to bare copper wires insulated with PFA, as PTFE is cheaper than PFA but still offers the same heat performance.

The other major advantage of Axon's patented process is that it does not require silver or nickel plating on copper to protect the conductor from oxidation.

PTFE offers good electrical insulation and it affords very good chemical resistance, according to the company.

It is chemically inert and self-extinguishing and it also resists abrasion.

Unlike thermoplastic materials such as PFA, PTFE does not melt and resists a soldering iron, even at 350C.

PTFE also allows for very thin insulation thicknesses compared to silicone-insulated wires.

PTFE-insulated bare copper wires are suitable for applications working under 200C, such as electrical appliances (ovens, cooking plates and boiler burners, for example) and automotive engines.

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