Trial #3
To evaluate selected cleaner at a lower concentration.
One cleaner, selected by the client based on the previous trials was diluted to 1% using DI water and placed in a VWR Scientific Products Aquasonic 150 HT ultrasonic tank and degassed for 5 minutes. One part was analyzed prior to cleaning to determine a baseline level. The part was then cleaned in this solution for 5 minutes at room temperature. Following cleaning, the part was rinsed for 2 minutes using a Crest 40 kHz ultrasonic tank model 4Ht 1014-6 with DI water at room temperature and then dried for 30 minutes at 160 F. After the part cools to room temperature, a final microscopy analysis was performed.
After analysis, the part looked clean along the seam. There was no major alteration of the surface. Pictures were taken of the part before and after.
Cleaning the supplied part with Tower 270 at 1%, 68 F for 5 minutes appears to have been effective.
No relation