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Trial Number 10

Client Number 469

Project Number 1

Trial Purpose:

To evaluate the removal of grease from aluminum coupons using heated ultrasonics at 15 minutes.

Date Run:

03/11/2021

Experiment Procedure:

A 2:1 solution was created for Water Works, and Dimethyl Glutarate was used at 100%. Three aluminum coupons per cleaner were pre-weighed for initial weights. They were then soiled 1/3 of the way with black grease that was given to us by the company and were weighed for dirty weights. The solutions were all heated on the hot plate till they reached 105 degrees F and the ultrasonic tank was also heated to 105 degrees F. Three coupons per cleaner were placed in the solutions for 15 minutes using ultrasonics. They were then left to dry for over an hour and final weights were taken.

Cleaners:

  1. 2:1 Water Works
  2. 100% Dimethyl Glutarate

Trial Results:

Both cleaners were effective for the removal of grease from aluminum coupons. Water Works averaged around 88% and only minor amounts were left on the coupons surface. Dimethyl Glutarate averaged around 98% and had full removal.

Cleaner Initial wt of cont Final wt of cont % Removal Average
Water Works 0.1311 0.0263 79.94 88.59
0.1787 0.0206 88.47
0.1294 0.0034 97.37
Dimethyl Glutarate 0.1247 0.0006 99.52 97.83
0.1914 0.0009 99.53
0.1565 0.0087 94.44

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

Both cleaners were effective for the removal of grease from aluminum coupons at 15 minutes. Only minor amounts were left on the coupon, company stated they don't need a full 100% removal. Next steps are to test parts using 15 minutes heated ultrasonics.

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