Running purging compound through hot runner channels can remove residual materials while leaving a minimal amount of residue behind. This ensures continued proper and efficient operation of a molding machine.
Depending on the process, purging methods can vary. Extrusion, unlike injection molding, is a continuous process. As a result, purging procedures should be performed regularly to avoid issues with product waste, untimely breakdowns and production downtime.
Purging the blow molding machine on the shop floor will ensure efficient performance and a better end product.
Processors today generally use three different kinds of purging compounds: chemical; abrasive; and non-abrasive.
Purging a plastic injection molding machine with resin or regrind for color changes or carbon removal often leads to costly waste and lost production time. Along with the right purging compound, there are best practices and procedures a business must follow to ensure the purging process is quick and thorough.
Purging compounds play a key role in plastics processing. They are used by processors to remove excess polymer, color and other impurities from a machine and tools between runs.