To evaluate alternative cleaners on second supplied contaminant.
Date Run:
05/16/2007
Experiment Procedure:
Six products from the previous trial were selected and used at full strength. The cleaning solutions were all heated to 130 F on a hot plate.
Eighteen preweighed alloy coupons were coated with the second supplied lubricant and weighed a second time to determine the amount of contaminant added to each coupon. Three coupons were immersed into each solution and cleaned for 5 minutes using stir-bar agitation. Coupons were rinsed in room temperature tap water for 15 seconds and air dried using compressed dry air for 30 seconds. A final weight was recorded, and efficiencies were calculated for each coupon cleaned.
Trial Results:
Five of the six products removed over 95% of the lubricant. Three of these removed over 99%. The table below lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
Soy Gold 1100
1.4978
0.0286
98.09
1.5557
0.0541
96.52
1.5184
0.0291
98.08
Solsafe 245
1.9557
0.0186
99.05
1.9062
0.0077
99.60
2.1998
0.0053
99.76
Shopmaster RC
2.1195
0.0117
99.45
1.8953
0.0095
99.50
1.2542
0.0080
99.36
DS 108
2.2218
0.0181
99.19
1.7480
0.0167
99.04
1.3172
0.0106
99.20
D Greeze 500 LO
2.1602
0.1368
93.67
1.5610
0.0311
98.01
2.0320
0.0392
98.07
SC Supersolve
1.8005
0.5534
69.26
2.2033
0.4855
77.96
1.8246
0.5985
67.20
Success Rating:
Results suggest a scale-up feasible match for cleaning chemistry and equipment. Pilot plant study with actual parts recommended.
Conclusion:
The five products that removed over 95% will be tested on the third supplied contaminant under the same conditions.
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