Trial Purpose:
To evaluate five products on supplied parts using ultrasonic cleaning
Date Run:
03/09/2007Experiment Procedure:
Five products were selected from previous trial based on effectiveness. One product was diluted to 10% using DI water and the other four were used at full strength in 600 ml beakers. Each solution was heated to 130 F in a Crest 40 kHz ultrasonic tanked filled with water. The solutions were degassed for 5 minutes.
Five stainless steel rings with lacquer finish and coated with Jackonslea Grey Color 305 A (1344-28-1) were cleaned in each solution at 1-minute intervals using 40 kHz ultrasonic cleaning. Rings were rinsed for 15 seconds in 120 F tap water and dried using compressed air at room temperature for 30 seconds. If the rings were not completely clean after the initial 1 minute, the rings would be cleaned for another 1 minute. In addition, if the rings were not completely cleaned after 5 minutes, cleaning would be stopped.
Trial Results:
All five products need more than 1 minute to clean. No cleaner needed more than 4 minutes. The table lists the observations for each ring cleaned at the various time intervals.
Order of observations from worst to best: Not clean<Almost clean<Nearly clean<Clean
| Cleaner | Observation |
| Bio T Max | Nearly clean at 1 minute |
| All clean after 2 minutes | |
| Solsafe 245 | Nearly clean at 1 minute |
| All clean after 2 minutes | |
| DS 104 | Not clean after 1 minute |
| Not clean after 2 minutes | |
| All clean after 3 minutes | |
| Optisolv OP 7168 | Not clean after 1 minute |
| Almost clean after 2 minutes | |
| All clean after 3 minutes | |
| D Greeze 500 Lo | Not clean after 1 minute |
| Not clean after 2 minutes | |
| Not clean after 3 minutes | |
| All clean after 4 minutes |
Success Rating:
Results suggest a scale-up feasible match for cleaning chemistry and equipment. Pilot plant study with actual parts recommended.Conclusion:
All five products will be tested on the un-lacquered/dirty rings under the same conditions.
