• Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film

Lab-Facilities

Testing of technical films, metallized/unmetallized, is mainly based  on the parameters fixed in the DIN 406324 (today DIN EN 60674) and VDE 345.

The testing of capacitors is described in a variety of national (VDE, DIN VDE) and standardised European (DIN EN & IEC) norms. The most well-known standards are IEC 384 and VDE 560.

All evaluations in the Steiner laboratory are based on these testing procedures.

Plainfilm (=unmetallized)

Plain film analysis

 

- Gloss

- Roughness 

- Surface tension  ( wetting test )

- Shrinkage

- Thickness measurement

- Mechanical properties

- Electrical properties

- Analysis with light microscope

Metallized Film

Measurement on metallized film

 

- Resistance

- Geometry ( free margin, pattern, etc. )

- Shrinkage

- Roughness

- Thickness measurement

      • by weight measuring method

      • by no. of turns and diameter

      • by mechanical calibers

      • by interferrometer measurement

- Mechanical properties

      • Youngs modul (E-Modul)

      • Tensile strength

- Analysis with light microscope

- Weak spots per square versus field stress

- Electrical breakdownstrength

- Climatic aging

Testing of Capacitors

Non destructive measurements

 

- Capacity, Dissipation factor at 100, 1kHz 10kHz & 100kHz frequency

- Capacity, Dissipation versus AC-Voltage

- Insulation & recharging / leakage current versus temperature and voltage

- Electrical properties versus temperature; AC-endurance test

Semi- or destructive measurements

 

- Climatic aging

- DC-breakdown voltage versus temperature

- AC-breakdown voltage versus temperature

Gallery AC-destruction test
Special Testing

Metallurgy

  • Element analysis by  X-ray-analysis

Cimatic testing e.g. 85°C/85% rel. humidity

Additionally to these testing methods we use standard equipment for the production of capacitors.

Production of capacitors

- Winding on split mandrell or plastic cores

- Flattening with cold or heated plates

- Shooping 

- Heat treatment of elements

      • Heat treatment with constant temperature

      • Dynamic heat treatment 

- Pre-clearing

      • DC – clearing by a charged capacitor 

      • DC – clearing with changing polarity

     • AC - clearing

- Hand soldering of contact wires and encapsulation with PU-resin