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Pulse Push Process

A method to reduce the weld line of plastic parts by the Merck KGaA and Keimkonzept

  • The weld line strengh of plastic parts, especially of those with bulking agents and increases clearly
  • The look of parts with pearl polish will improve in the area around the weld line.
  • The process works with a two way injection and pressing of the melt over two injection points. The polymer and the bulking agents match better now.

 
 
 
 
 

Detail-Views

pearl polished sample plates with and without the PP-Process

 

pressure courve in the hotrunner for the entire cycle

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