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To evaluate the removal of Oak 15A-1 from Galvanized Steel.
Three parts per cleaner were weighed for initial weights. They were then dipped in the Oak 15A-1 oil and all excess oil was allowed to drip off. They were then weighed for dirty weights. The cleaners were heated to their vendor recommended temperatures and were placed in the heated ultrasonics tank. Three coupons per cleaner were immersed and the ultrasonics tank was run for 15 minutes at 40 KhZ. They were then placed on trays and left to dry overnight. After drying, they were weighed for clean weights.
None of the cleaners performed over 90% removal effectiveness. Shopmaster had an average removal of 75%. Water works had a removal of 55% and Mirachem 500 removed an average of 86%. SC Aircraft had an effectiveness of 36% and was the lowest percentage removal.
|Cleaner||Conc.||Temp||Initial wt. of cont.||Final wt. of cont.||Average||Combined Average|
|Shopmaster LPH||20%||140 F||0.2804||0.0736||73.75||75.35|
|Water Works||33%||105 F||0.3211||0.0823||74.37||54.67|
|Mirachem 500||33%||140 F||0.9739||0.0435||95.53||86.24|
|S.C. Aircraft||25%||140 F||0.3565||0.0942||73.58||36.23|
Success Rating:A follow up test, usually based on company input.
None of the cleaners were effective for the removal of oil from galvanized steel. Next steps are to adjust concentration, time, and temperature to try to increase effectiveness of the removal of oil from Galvanized Steel.