Trial Purpose:
Determine effectiveness of three cleaners
Date Run:
04/06/1995Experiment 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 agitated with a stir-bar. 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 water spotting.
SUBSTRATE MATERIAL: Gold-Coated Aluminum
CONTAMINANTS: Rosin Solder Flux
CONTAMINATING PROCESS USED: received 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 ineffective 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.
