To evaluate supplied products on third requested contaminant.
Date Run:
10/18/2007
Experiment Procedure:
Four products were diluted to the requested levels and heated to 135 F on a hot plate. In addition, water was used as a control solution. Eighteen preweighed Aluminum 6061 T6 coupons were coated with Blaser Vacomill 22 cutting oil using a handheld swab. Coupons were weighed a second time to determine the amount of cutting fluid added.
Three coupons were immersed in each solution and cleaned for five minutes using minimal stir-bar agitation. Coupons were rinsed in either DI water or tap water heated to 135 F. One product was rinsed in room temperature tap water as requested. All coupons were dried for 10 minutes in an oven at 140 F. After drying, coupons were weighed a third time and product cleaning efficiencies were calculated.
Requested Procedure:
A. General Process Soaking for 5 minutes at 135 degrees F and rinsing for 5 minutes at a temperature selected in procedure B below. During the soaking and rinsing the solution should be gently stirred to simulate effect of typical continuous flow filtering in both cleaning and rinse tanks. Then dry thoroughly in drying oven of type that is typically used in precision cleaning applications. The rinse water should be changed after each set of 3 tests to prevent contaminant buildup.
B. FPC testing. Mix FPC 100-add 7 oz of concentrate to 123 oz of filtered tap water when both are at room temperature. Then run process of A above with rinse tank at room temperature and repeat with rinse tank at 135 degrees F.
C. Other products Use process A above. at dilutions shown but rinsing with DI water instead of tap water for the Metalnox M6440.
Products to Evaluate
Metalnox M6440 @ 10% solution
Extreme Simple Green Aircraft Cleaner@10% solution.
Gemtec Aircraft cleaner @ 15% solution. Kleen Tec 715@ 1 part concentrate to 11 parts water
Trial Results:
The same four products removed over 92% of the Blaser Vacomill 22 cutting oil. Water removed just under two-thirds of the lubricant. The FPC that was rinsed with room temperature water removed just over 80%. The table lists the amount of soil added, the amount remaining and the calculated efficiencies.
Cleaner
Initial wt
Final wt
% Removed
Metalnox M6410
0.3042
0.0017
99.44
0.4746
0.0271
94.29
0.3414
0.0377
88.96
SC Aircraft
0.3516
0.0258
92.66
0.3401
0.0352
89.65
0.3486
0.0145
95.84
KT 715
0.2809
0.0049
98.26
0.4151
0.0069
98.34
0.3416
0.0050
98.54
FPC 100
0.3773
0.0157
95.84
0.2970
0.0144
95.15
0.3452
0.0262
92.41
Water
0.1392
0.0565
59.41
0.2871
0.1045
63.60
0.2996
0.1106
63.08
FPC 100 cold rinse
0.3658
0.0734
79.93
0.3327
0.0365
89.03
0.2986
0.0628
78.97
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
The products will be tested on the final supplied contaminant following the requested procedures.
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