Polyurethane Mold Cleaning

Urethanes are an adhesive and will bond to aluminum or steel molds.  Over time, the molds used in the casting of urethane and polyurethane parts build up a residue and require cleaning.  Magnus Engineered Equipment (MEE) can provide a cleaning process wherein the molds are cleaned in less than 5 minutes and without any damage or distortion to the mold.  Dis-assembly of the mold is not required for cleaning.  Any size or weight mold can be cleaned with the MEE cleaning process.

In the past, producers of molded urethane parts would use an abrasive or grit blasting to clean the molds after casting.  This cleaning process caused the mold surface to become rougher which then made mold release and mold cleaning even more difficult.  These cleaning processes often required dis-assembly of the mold and many hours of effort to remove the surface contamination.  Using 20 kHz magnetostrictive transducer technology, MEE can provide a cleaning process which will clean the mold without dis-assembly, cause no harm to the mold, and will clean the mold in less than 5 minutes!

MEE manufactures and supplies the most powerful ultrasonic cleaning equipment for cleaning applications.  Unlike the commonly used piezoelectric transducers which operate at 40 kHz, MEE supplied magnetostrictive transducers which operate at 20 kHz and deliver ~25 times more cleaning power than piezoelectric transducers.  Higher power equates to more thorough cleaning, faster cleaning speeds, or both.  Figure 1 shows the cleaning power comparison between MEE’s magnetostrictive transducers and piezoelectric transducers.

sonics-graf

Figure 1 Magnus vs Competitor’s Ultrasonic Cleaning Power

 

Here are some photos of molds with polyurethane contaminant which were cleaned with the MEE process. 

Before Cleaning After Cleaning

Leave a Reply

Your email address will not be published. Required fields are marked *