The purpose of this experiment was to determine the effectiveness of cleaners in removing penetrant oil from copper substrate parts provided by the company.
Date Run:
02/25/2021
Experiment Procedure:
Cleaners were prepared to the following concentrations: Metalnox 6386 100%, Water Works Heavy Duty Degreaser 7:1. Solutions and an ultrasonic bath were heated to 100°F. Three BeCu parts provided by the company were obtained and weighed. Parts were then soiled with the penetrant oil spray and a dirty weight was recorded. Once solutions reached the proper temperature, parts were submerged into their respective cleaners and ultrasonic cleaning was conducted for 15 minutes. After 15 minutes, parts were dried with a heat gun at ambient setting to remove all solution. Following the drying process, parts were weighed again and a clean weight was recorded. Effectiveness of the cleaners was then determined.
Trial Results:
Cleaner
Initial wt of cont
Final wt of cont
%Cont Removed
%AVG
Metalnox 6386
0.0827
0.0018
97.82
98.37%
0.1397
0.0028
98.00
0.1391
0.0010
99.28
Water Works
0.1204
0.0011
99.09
99.17%
0.1714
0.0014
99.18
0.1849
0.0014
99.24
Both cleaners were successful at removing the penetrant oil spray from BeCu substrates. Solutions did not experience as noticeable of a color change as in the penetrant oil trial with steel parts. However, all oil was visibly removed following the cleaning process. Next steps would be to test the effectiveness of cleaners removing aviation grease from the BeCu substrates.
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
Upon completion of testing, it was determined that both cleaners were very effective at removing the penetrant oil spray from BeCu substrates. Next steps would be to test the effectiveness of the cleaners in removing aviation grease from BeCu substrates.
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