Trial #2
To evaluate successful cleaners using ultrasonic energy
The three cleaners were used at the same strength (20%) and temperature (140 F). Solutions were degassed in the Crest 40 kHz ultrasonic tank for 5 minutes prior to submersing parts. One part from the previous trial was cleaned in each of the solutions for 3 minutes. Parts were rinsed in a tap water spray for 1 minute at 120 F and dried with a heat gun at 500 F to decrease rusting. Observations were made after parts were dry.
Contaminant: White powders (SiO2, NHCl, (NH4)2SiF6, or NH4HF2)
The additional 3 minutes of ultrasonic energy was enough to remove nearly all of the white powders from the steel parts. The Amberclean 527 L was the most successful cleaner used. The other two products were equally to each other in their cleaning results.
Table 1. Ultrasonic Cleaning
| Cleaner
|
Observations
|
| Shopmaster
|
Good/excellent cleaning
|
| Amberclean
|
Excellent Cleaning
|
| Beyond 2001
|
Good/excellent cleaning
|
A longer ultrasonic cleaning time would improve the results of removing the different white powders from the parts. Little of the green paint was removed during the immersion and ultrasonic cleaning.
No relation