Trial Purpose:
To evaluate successful products on third supplied contaminant using heated ultrasonic cleaning.
Date Run:
09/23/2008Experiment Procedure:
Six products were selected from the previous trial based on success on removing the first two supplied soils. Three products were diluted to 5% using DI water in 400 ml beakers. The other three were used at full strength based on vendor recommendations. Beakers were immersed and heated to 130 F in a Branson 40 kHz ultrasonic tank. Solutions were degassed for five minutes.
Eighteen preweighed steel coupons were coated with the rust preventative VCI 369 using a hand held swab. Coupons were weighed again to determine the amount of soil added. Three coupons were cleaned in each solution for 10 minutes using ultrasonic energy. Coupons were rinsed for 15 seconds in tap water at 120 F and dried using compressed air at room temperature for 30 seconds. Final weights were recorded and efficiencies calculated.
Trial Results:
Three products removed over 90% of the third contaminant and the other three removed over 85%. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
| Cleaner | Initial wt | Final wt | % Removed |
| Aquavantage 1400 GD | |||
| 0.1576 | 0.0017 | 98.92 | |
| 0.1180 | 0.0144 | 87.80 | |
| 0.2259 | 0.0050 | 97.79 | |
| Grease Feast | |||
| 0.2491 | 0.0256 | 89.72 | |
| 0.2017 | 0.0210 | 89.59 | |
| 0.1083 | 0.0137 | 87.35 | |
| SC Aircraft & Metal Cleaner | |||
| 0.1215 | 0.0185 | 84.77 | |
| 0.1011 | 0.0052 | 94.86 | |
| 0.1609 | 0.0255 | 84.15 | |
| SC MaxiSolve | |||
| 0.2304 | 0.0291 | 87.37 | |
| 0.2109 | 0.0155 | 92.65 | |
| 0.2353 | 0.0062 | 97.37 | |
| Smart Solve 605 | |||
| 0.1505 | 0.0183 | 87.84 | |
| 0.1599 | 0.0195 | 87.80 | |
| 0.1687 | 0.0113 | 93.30 | |
| Bean-e-doo | |||
| 0.1076 | 0.0003 | 99.72 | |
| 0.1226 | 0.0103 | 91.60 | |
| 0.2734 | 0.0031 | 98.87 | |
Success Rating:
Results suggest a scale-up feasible match for cleaning chemistry and equipment. Pilot plant study with actual parts recommended.Conclusion:
The top three products from all three soils, Bean-e-doo, Aquavantage 1400 GD and SC Aircraft & Metal Cleaner, will be tested using heated immersion cleaning.
