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Trial Number 0

Trial Purpose:

Determine effectiveness of three cleaners

Date Run:

04/06/1995

Experiment Procedure:

The purpose of this trial is to determine the effectiveness of three different cleaners for the removal of flux for Electrical Manufacturer.
Cleaning was performed for fifteen minutes at 160o F in a beaker aggitated with a stirbar. Rinsing was performed in a tap water bath followed by a DI water bath. Both rinses were for 5 minutes at 140 F. The parts were then dried under an air knife for two minutes and in a convection oven for 60 minutes (at 210 F).
After drying the parts were visually observed for any residual flux and/or watter spotting.

SUBSTRATE MATERIAL: Gold-Coated Aluminum
CONTAMINANTS: Rosin Solder Flux
CONTAMINATING PROCESS USED: recieved contaminated from Electrical Manufacturer

Trial Results:

The black light showed that all the flux was removed from the part cleaned with the Calgon Geo-Guard 2215.  There was a problem of water spotting on the parts.  Both WR Grace cleaners were inneffective in removing the flux from the parts.

Success Rating:

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

Conclusion:

The Geo-Guard 2215 seems to be a suitable chemistry for Electrical Manufacturer's needs.  The water spotting could be a big problem so a new rinsing and drying method needs to be determined.