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Trial Number 8

Client Number 218

Project Number 1

Trial Purpose:

To evaluate cleaners from previous grease trial using ultrasonic energy

Date Run:

03/04/2004

Experiment Procedure:

Five cleaners from the previous trial were diluted to 10% in 250 ml beakers. A sixth product was used at full strength. All products were suspended in a Branson 3510 ultrasonic tank (40kHz) filled with water at 130 F and degassed for five minutes. Eighteen preweighed coupons were coated with Hibrenia Way Apiezon M1 grease using a hand held swab. Coupons were then reweighed. Three coupons were cleaned in each product for 5 minutes using ultrasonic energy. At the end of cleaning, coupons were rinsed with tap water at 120 F for 15 seconds and dried using air blow off for 30 seconds at 68 F. Once dry, coupons were weighed a final time and efficiencies were calculated.

Trial Results:

All six products removed over 98% of the grease within the five minutes of ultrasonic cleaning. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon.

Cleaner Initial wt Final wt % Removed
Liquinox 0.1311 0.0002 99.85
  0.1182 -0.0002 100.17
  0.1275 0.0017 98.67
SC Aircraft 0.1637 0.0015 99.08
  0.1059 0.0016 98.49
  0.1685 0.0017 98.99
Micro 90 0.1469 -0.0001 100.07
  0.0846 0.0001 99.88
  0.2092 0.0000 100.00
Metalnox M6314 0.1427 -0.0004 100.28
  0.0967 -0.0003 100.31
  0.1604 0.0014 99.13
E3HB 0.1287 -0.0003 100.23
  0.0629 -0.0001 100.16
  0.0668 -0.0003 100.45
Inproclean 3800 0.0615 0.0009 98.54
  0.0713 -0.0001 100.14
  0.1283 -0.0003 100.23

Success Rating:

A follow up test, usually based on company input.

Conclusion:

Ultrasonic cleaning has bee shown to be an effective way to remove the M1 grease from ceramic coupons.

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