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SPRAY-UP PROCESS





INTRODUCTION







  •     The above figure shows the spray-up process.


  •    It consists of fibre, chopper, mould etc...


  •    Spray-up is an open moulding , composite fabrication process where resin and reinforcement are sprayed onto a reusable mould.


 Working

  •    First we cut the continuous fibres by help of chopper.


  •    Then a mixture of fiber and resin along with catalyst is sprayed simultaneously onto a vertical mould.


  •    The density of deposited laminate is later increased with the help of a roller by removing the entrapped air.


  •    Multiple layers may be added to produce the desired thickness. 


  •   Curing is usually at room temperature but may be accelerated by the application of a moderate amount of heat.


                                      


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