Project #1
Comparison of two ultrasonic cleaners. Two parts to be supplied for analysis, one from each cleaner.
10/23/2002
Housing for a precision pump used in clinical chemistry applications
1.5 x 1.5 x 2 inches
Small
Less than 1 lb
Machining
Anodizing
500/day
16
Lewis vs Ransohoff lean jet with ultrasonics
BCS Ultra blue, Evercycle UCL
Unknown
To remove coolant, chips and oils from machine
Parts are anodized
This analysis is to verify that a new ultrasonic cleaner under consideration cleans at least as well as our current cleaner.
Contact angle measurements of both parts resulted in nearly identical readings. The BCS cleaned part had an average angle of 67 and the Evercycle cleaned part had an average angle of 68. No difference in cleanliness can be found using this methodology.
OSEE measurements resulted in higher values for the BCS cleaned part than for the Evercycle part. The dirty part had a lower reading than both cleaned parts. From this comparison, the results would suggest that the BCS cleaned part was cleaner than the Evercycle part. The BCS part had an average OSEE reading of 733, the Evercycle part reading was 416 and the dirty part had a reading of 276.