Purging extrusion blow molding machines
Purging the blow molding machine on the shop floor will ensure efficient performance and a better end product.
Purging: Cleaning between runs
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.
On shop floors today, there are three primary types of purging compounds: abrasive, non-abrasive and chemical.
Purging is done in several plastic production processes, including blow molding, compounding, extrusion and injection molding. There may also be other instances where purging is necessary. Read More
Purging: Chemical, abrasive and non-abrasive
Processors today generally use three different kinds of purging compounds: chemical; abrasive; and non-abrasive.
Purging extrusion machinery
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 Hot runners: Open or closed methods
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.
Purging: Key to injection molding
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.
