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Home > Automobile Textiles > Insulating felts
   Insulating felts  
 
Overview Supplier
About insulation felts:
  • Insulation felts, often known as NVH products (Noise, Vibration, and Harshness parts) are used for acoustic and thermal insulation in the automobiles.
  • These are Bonnet liner, Outer dash, Wheelhouse, and Outer floor under shield. These parts not only provide noise protection inside the car but also a reduction in the noise emission outside.
  • Uses of NVH parts in automobiles started after introduction of EURO norms in the sector.
Product characteristics:
  • The NVH products or insulation felts are 100% polyester non-woven technical textile products.
  • These products are classified based on the manufacturing process as needle-punched, phenolic resin bonded and thermoplastic.
  • The felts are generally soft and used with or without harder backing.
  • The thermal insulation products provide dissipation of heat at high temperature areas in the engine and under car body.
  • The NVH products combine noise and heat protection function into the integrated comfort system.
Raw-materials and machinery:
  • The manufacturing process for NVH products is based on the raw materials used.
  • The two broad manufacturing processes are
    1. For Non-Polyurethane based NVH (Non-PU) and
    2. Polyurethane based NVH products.
  • The machinery used for manufacturing NVH components’ details are as given below:
    1. Opening and Blending machine – (Key supplier - Reisky and Schlese)
    2. Needle Loom – (Key supplier - Dilo (Germany))
    3. Foaming and Moulding machine
    4. Lamination machine
    5. Resin felt manufacturing machine
    6. Thermo-bond interlining manufacturing machine

 

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