The purpose of this experiment was to determine the effectiveness of cleaners in removing oil from stainless steel coupons via heated immersion.
Date Run:
11/10/2020
Experiment Procedure:
Cleaners were prepared to the following concentrations: Dimethyl glutarate 100%, Smart Solve 605 100%, SC Aircraft & Metal 20%, SC Supersolve 20%, and Crystal Simple Green Industrial Cleaner 30 parts water. All cleaners were heated to 100°F. Three stainless steel coupons were obtained and weighed for each of the cleaners being tested. Cleaners were then soiled with the grind oil provided by the company and a dirty weight was recorded. Once solutions reached the proper temperature, coupons were submerged into their respective cleaners for 15 minutes. After the 15 minutes, coupons cleaned with Smart Solve 605 and SC Aircraft & Metal were submerged into a heated deionized water bath for 30 seconds. All coupons were then given an initial drying with a heat gun and finished drying overnight in air. A clean weight was then obtained. Effectiveness of the cleaners was determined.
Trial Results:
Cleaner
Initial wt of cont
Final wt of cont
%Cont Removed
%AVG
Dimethyl glutarate
0.0192
0.0064
66.67
68.02%
0.0438
0.0118
73.06
0.0387
0.0138
64.34
Smart Solve 605
0.0250
0.0076
69.60
74.31%
0.0344
0.0086
75.00
0.0226
0.0049
78.32
SC Aircraft & Metal
0.0301
0.0048
84.05
79.55%
0.0272
0.0045
83.46
0.0239
0.0069
71.13
SC Supersolve
0.0692
0.0177
74.42
74.35%
0.0579
0.0202
65.11
0.1123
0.0185
83.53
Crystal Simple Green
0.0926
0.0026
97.19
82.87%
0.0731
0.0081
88.92
0.0408
0.0153
62.50
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
Crystal Simple Green was the most effective cleaner removing an average of 82.87% of oil from stainless steel substrates. SC Aircraft was the second most effective removing an average of 79.55%. Next steps would be to conduct heated immersion with agitation.
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