Evonik opens PEEK magnet‑wire lab in China
- Evonik opened a China lab to develop VESTAKEEP PEEK rectangular magnet wire for NEV electric‑drive motor applications.
- Installed capabilities include copper conductor pretreatment, PEEK extrusion coating, in‑line dimensional inspection, final winding and a local pilot extrusion line using international core components.
- The lab performs reliability tests on insulation: breakdown voltage (BDV), partial discharge inception voltage (PDIV), corona resistance and oil‑aging resistance to qualify materials.
Purpose
Evonik opened a PEEK rectangular magnet‑wire lab in China to develop PEEK powder‑based insulation for electric‑drive motors used in new energy vehicles and to serve Chinese and broader Asian markets.
Capabilities
The facility covers the full process chain: copper conductor pretreatment, PEEK extrusion coating, in‑line dimensional inspection, final winding and a pilot extrusion line integrated locally with internationally sourced core components.
Testing and validation
It performs sample preparation, formulation validation and benchmarking, and carries out reliability testing with third‑party partners on insulation properties including breakdown voltage (BDV), partial discharge inception voltage (PDIV), corona resistance and oil‑aging resistance.
Technical focus
Work targets magnet‑wire challenges such as processing‑parameter optimization, coating‑structure design, adhesion improvement, and control of dimensions and concentricity to meet higher temperature, higher voltage and more demanding operating conditions in NEV motors.
Source: Evonik