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Title: Cleaning of uranium vs machine coolant formulations

Technical Report ·
DOI:https://doi.org/10.2172/6150582· OSTI ID:6150582

This study compares methods for cleaning uranium chips and the residues left on chips from alternate machine coolants based on propylene glycol-water mixtures with either borax, ammonium tetraborate, or triethanolamine tetraborate added as a nuclear poison. Residues left on uranium surfaces machined with perchloroethylene-mineral oil coolant and on surfaces machined with the borax-containing alternate coolant were also compared. In comparing machined surfaces, greater chlorine contamination was found on the surface of the perchloroethylene-mineral oil machined surfaces, but slightly greater oxidation was found on the surfaces machined with the alternate borax-containing coolant. Overall, the differences were small and a change to the alternate coolant does not appear to constitute a significant threat to the integrity of machined uranium parts.

Research Organization:
Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
Sponsoring Organization:
DOE/DP
DOE Contract Number:
AC05-84OS21400
OSTI ID:
6150582
Report Number(s):
Y/DW-538; ON: DE91006302
Country of Publication:
United States
Language:
English