Trial #1
To evaluate cleaners using ultrasonic energy
Three products from the previous trial and two additional products were diluted to 5% using DI water in a 600 ml beaker. All five products were heated to 130 F on a hot plate and then immersed into a Crest 40 kHz ultrasonic tank filled with water heated to 130 F. The products were degassed for five minutes. Fifteen preweighed coupons were contaminated with the Metalube Corp ML-119.2 dry lubricant using a hand held swab. After the coupons sat for 30 minutes a second weight was recorded to determine the amount of soil added to the coupons. Three coupons were immersed into each solution and cleaned for five minutes using ultrasonic energy. Coupons were then rinsed in tap water at 120 F for 15 seconds and dried using a Master Appliance Heat Gun at 500 F for 30 seconds. The coupons were then allowed to cool to room temperature and weighed again. Efficiencies for the five cleaners were calculated and recorded.
All five cleaners were successful in removing over 95% of the lubricant using ultrasonic energy. The table below shows the amount of soil added and removed for each coupon.
| Cleaner
|
Initial wt
|
Final wt
|
% Removed
|
| Formulat 815 GD
|
0.0158
|
0.0006
|
96.20
|
|
|
0.0088
|
0.0010
|
88.64
|
|
|
0.0076
|
0.0000
|
100.00
|
| SC Aircraft
|
0.0084
|
0.0003
|
96.43
|
|
|
0.0161
|
0.0002
|
98.76
|
|
|
0.0243
|
0.0006
|
97.53
|
| Polyspray Jet 790 P
|
0.0098
|
0.0003
|
96.94
|
|
|
0.0340
|
0.0003
|
99.12
|
|
|
0.0233
|
0.0007
|
97.00
|
| Inproclean 3800
|
0.0045
|
-0.0001
|
102.22
|
|
|
0.0142
|
0.0004
|
97.18
|
|
|
0.0066
|
0.0002
|
96.97
|
| Micro 90
|
0.0120
|
0.0003
|
97.50
|
|
|
0.0084
|
0.0007
|
91.67
|
|
|
0.0088
|
-0.0002
|
102.27
|
Two client requested products will be evaluated using immersion and ultrasonic energy.
No relation