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