Trial #0
To test the efficacy of alternative solvents to Hexane in removing machining oil from sample parts using ultrasonics.
Three sample parts of each part type were grouped together and assigned to one of each solvent to be cleaned. The three sample parts of each part type were weighed together using a gravimetric balance and had their initial weights recorded. Each sample part was then immersed in the provided Swisscut Ortho NF-X US 24 Machining Oil for 2 minutes. During the 2-minute immersion in the oil, the parts were inverted twice to aid in the filling of blind holes and complex thread geometry. The parts were then removed and re-weighed in their groups of three to have their dirty weights recorded. The parts were then subjected to 5 minutes of unheated ultrasonics cleaning in their respective solvents. Once removed from ultrasonics immersion, the groups of parts were allowed to air dry for 1 minute. After air drying, the groups of parts were weighed and had their final weights recorded.
| Cleaner
|
Substrate
|
Initial wt of cont.
|
Final wt of cont.
|
%Cont Removed
|
% AVG
|
| Acetone
|
BLX
|
0.1648
|
0.0002
|
99.88
|
97.40
|
| BLT-NC
|
0.1064
|
0.0001
|
99.91
|
| TLX
|
0.1354
|
0.0055
|
95.94
|
| BLC-WB
|
0.1408
|
0.0042
|
97.02
|
| Variobase
|
0.0838
|
0.0017
|
97.97
|
| Basel Screw
|
0.0568
|
0.0012
|
97.89
|
| Analog
|
0.1081
|
0.0094
|
91.30
|
| Sterile Nealing
|
0.0694
|
0.0005
|
99.28
|
| Methylal
|
BLX
|
0.1082
|
0.0000
|
100.00
|
99.46
|
| BLT-NC
|
0.0534
|
0.0000
|
100.00
|
| TLX
|
0.0646
|
0.0000
|
100.00
|
| BLC-WB
|
0.0695
|
0.0008
|
98.85
|
| Variobase
|
0.0521
|
0.0004
|
99.23
|
| Basel Screw
|
0.0124
|
0.0000
|
100.00
|
| Analog
|
0.0683
|
0.0005
|
99.27
|
| Sterile Nealing
|
0.0533
|
0.0009
|
98.31
|
| Ethyl Acetate
|
BLX
|
0.0961
|
0.0076
|
92.09
|
93.05
|
| BLT-NC
|
0.0683
|
0.0106
|
84.48
|
| TLX
|
0.1080
|
0.0066
|
93.89
|
| BLC-WB
|
0.1168
|
0.0044
|
96.23
|
| Variobase
|
0.0831
|
0.0003
|
99.64
|
| Basel Screw
|
0.0262
|
0.0001
|
99.62
|
| Analog
|
0.0803
|
0.0052
|
93.52
|
| Sterile Nealing
|
0.0212
|
0.0032
|
84.91
|
| Methyl Acetate
|
BLX
|
0.1709
|
0.0044
|
97.43
|
95.50
|
| BLT-NC
|
0.1341
|
0.0022
|
98.40
|
| TLX
|
0.1486
|
0.0150
|
89.91
|
| BLC-WB
|
0.1565
|
0.0179
|
88.56
|
| Variobase
|
0.0761
|
0.0012
|
98.42
|
| Basel Screw
|
0.0432
|
0.0009
|
97.92
|
| Analog
|
0.1147
|
0.0067
|
94.16
|
| Sterile Nealing
|
0.0644
|
0.0005
|
99.22
|
Noticeable residue left behind on some parts cleaned with Ethyl Acetate
Ethyl Acetate took slightly longer to fully evaporate from the surface of the parts than the other solvents.
Acetone and Methylal are both highly effective solvents in removing machining oil from the provided sample parts. The efficacy of Acetone ranged from 91%-99.91% while the efficacy of Methylal ranged from 98.31-100% showing that Methylal performed with more consistency than Acetone.
No relation