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Electrical insulation

Electrical insulation

Electrical insulation：

  • >Electrical insulation parts：

    Epoxy resin system and silica powder are widely used in electrical insulation parts, such as dry type transformer, arc suppression coil, electric reactor, mutual inductor, insulating support and insulating bush, for mixed casting, solidification and molding.

    Featured by reasonable size distribution and proper surface treatment, NOVORAY’s NOVOPOWDER crystalline silica powder and fused silica power can ensure good process operability in mixed system viscosity and anti-sedimentation and bring excellent performance in mechanical strength, electrical insulating property, dimensional stability and thermal shock resistance of cast and solidified molding products. NOVORAY’s acicular powder can be used as filler of the fixing and sealing post terminal with high requirements of mechanical strength. NOVORAY can offer the best silica powder solution in accordance with the structure designs and casting processes.

    By designing the size distribution and surface treatment, NOVORAY’s NOVOPOWDER crystalline silica powder and fused silica power can bring proper viscosity and anti-sedimentation to the pre-mixed materials in order to realize the optimal storage and operability.


  • >Resin for injection mold：

    Bi-component or single component epoxy resin is generally used for sealing automobile ignition coil and high-voltage transformer. The epoxy resin used is added with crystalline silica powder or fused silica power in general.

    With reasonable size distribution, NOVORAY’s NOVOPOWDER crystalline silica powder and fused silica power can ensure good storage performance and impregnation of mixed system and ensure good mechanical strength, heat conduction property, flammability and low expansion ratio for final products.

  • >Insulation varnish：

    NOVORAY’s NOVOPOWDER ultra-fine crystalline silica powder can be used in wire enamel. If being added with the silica powder at proper proportion, the insulation varnish can have good viscosity, anti-sedimentation and operability, the enameled wire produced can have good resistance thermal shock, resistance to scratching and wiping and high insulating strength.