Couplings made from high dielectric material for high-voltage applications
21 November 2008
To meet the specific motion control needs of high voltage systems Huco Dynatork is exporting its expertise to Japan. Its customer specialises in the design and manufacture of high voltage capacitors, one application for which is in an electronic assembly for plasma screens. A miniature misalignment coupling is also part of this assembly but because standard materials of manufacture are unsuitable for this high voltage application the capacitor manufacturer turned to Huco Dynatork in the UK for a solution.
As one of Europe’s largest specialists in motion control technology Huco Dynatork is often asked to provide solutions to specific problems. The answer for this particular application was to machine the required couplings in a non-standard, high dielectric constant material to prevent voltage leakage across the drive.
Victrex PEEK proved ideal for the job. The polymer is characterised by excellent mechanical properties maintained to high temperatures. As well as excellent electrical, chemical and temperature resistance it is hard wearing and provides dimensional stability. Trials of the special couplings proved successful and resulted in a substantial ongoing order for a range of the Huco Dynatork MultiBeam couplings made from PEEK.
The general-purpose Huco Dynatork MultiBeam couplings readily accommodate any combination of axial motion and angular/parallel misalignment and as standard are machined in aluminium or stainless steel and other materials by special order.
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