Water can now be used successfully to degrease
components, with a water rinse at 75 deg C components dry rapidly after
washing.
Superdraw SG has enabled a brass extrusion manufacturer to remove trichloroethylene (TCE) degreasing
from their
production process.
Which has allowed them simply and cheaply to meet the requirements of the SED.
Like many engineering companies a
low cost way of changing away from TCE was required.
The cost of keeping solvent
degreasing by installing a
hermetically sealed degreasing system was totally prohibitive.
Nor was there was no way to reduce
consumption to less than 1tpa as required by the SED.
Having studied the company's way
of working and its processes, John Neale considered that
lubricants
could be selected, that would wash-off in water, and which would cleanly
burn-off in a hot straightening process.
Samples of new technology water
rinse-able products were supplied to the company.
The company had tested several
washable products from other
suppliers with no success.
John Neale explained that the use
of standard soluble metal-working fluids is not suitable for water rinse
degreasing.
The lubricants have to be removed
with no agitation and simply dissolve into the water, which does not happen
with most water-mix lubricants.
Trials have confirmed that water
can now be used successfully to degrease components.
The water rinse is operated at 75
deg C so the components dry rapidly after degreasing.
Components are cleaned to the
company's full satisfaction.
