The purpose of this experiment was to determine the effectiveness of cleaners in removing company provided oil from stainless steel via unheated immersion.
Date Run:
11/04/2020
Experiment Procedure:
Six cleaners were prepared to the following concentrations: Metalnox 6386 100%, Dimethyl Glutarate 100%, Smart Solve 605 100%, SC Aircraft & Metal Cleaner 20%, SC Supersolve 20%, Crystal Simple Green Industrial Cleaner 30 parts water. Three stainless steel coupons were obtained and weighed for each of the cleaners. Coupons were then soiled with grind oil provided by the company and a dirty weight was recorded. Once soiled, coupons were submerged into their respective cleaners for 15 minutes at room temperature. After 15 minutes, coupons were set aside to dry in air for 24 hours. After the drying period, a final clean weight was recorded. Effectiveness of the cleaners was determined.
Trial Results:
Cleaner
Initial wt of Cont
Final wt of Cont
%Cont Removed
%AVG
Metalnox 6386
0.0375
0.0016
95.73
96.56%
0.0390
0.0009
97.69
0.0775
0.0029
96.26
Dimethyl Glutarate
0.0432
0.0664
-53.7
15.53%
0.1002
0.0511
49.00
0.0854
0.0416
51.29
Smart Solve 605
0.1169
0.1168
0.09
-10.5%
0.0918
0.1088
-18.52
0.1239
0.1401
-13.08
SC Aircraft and Metal
0.1096
0.0435
60.31
68.25%
0.1480
0.0338
77.16
0.1076
0.0352
67.29
SC Supersolve
0.1115
0.0502
54.98
60.96%
0.0633
0.0356
43.76
0.1382
0.0219
84.15
Crystal Simple Green
0.1266
0.0349
72.43
71.3%
0.1875
0.0430
77.07
0.1475
0.0525
64.41
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
Metalnox 6386 was the most effective at removing grind oil via unheated immersion with an average removal of 96.56%. Crystal Simple Green was the second most effective with a removal average of 71.3%. Next steps would be to conduct heated immersion at 100°F for 15 minutes. Less soil will be used on the coupons as well. A 30 second deionized water rinse step at 100°F will be included for Smart Solve and SC Aircraft.
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