Appendix 3: Procedure and parameter recommendations using Expert Mode
126
BA_Elmasolvex_VA_EN_Vers.05.2018
© Elma Schmidbauer GmbH
However, the lowest boiling (i.e. first evaporating at continued
temperature increase or pressure reduction) component
(comparable with n-octane) of the elma suprol pro rinsing
medium boils under normal pressure of 1013 mbar at 125 °C, at
30 °C when reaching a vacuum of approx. 25 mbar and at
40 °C when reaching approx. 40 mbar (
Fig. 16.7
).
However, the highest boiling (i.e. last evaporating at continued
temperature increase or pressure reduction) component
(comparable with n-nonane) of the elma suprol pro rinsing
medium boils under normal pressure of 1013 mbar at 151 °C, at
30 °C when reaching a vacuum of approx. 10 mbar and at
40 °C when reaching approx. 15 mbar (
Fig. 16.7
).
The elma suprol pro rinsing medium, like other transportable
rinsing media by road, rail and air as flammable liquids at still
reasonable costs, must not undercut a flashpoint of 23 °C.
Unfortunately, this does not allow any higher content of low
boiling point and lower content of high boiling point components
in the mixture.
This results in only a slower evaporation process than the
boiling makes possible – the vaporisation of the rinsing medium
– when using elma suprol pro as last rinsing medium with the
available vacuum down to 25-30 mbar in the elma solvex VA.
Therefore, under the restrictions mentioned above and in
chapter 8.1
regarding heating of the rinsing medium using
ultrasound for short drying times, the use of IPA as last rinsing
medium is recommended although it has somewhat higher
evaporation heat than the hydrocarbons in elma suprol pro.
