all or nothing

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· dasdental labor · LXII · 5/2014 33
All or nothing Function
Sintering
Finally, the zirconium frameworks are
sintered in a sintering furnace. It
should be noted that both systems are
compatible for sintering (Fig. 8). The
Ceramill Therm2 sintering furnace,
which is suitable for the Ceramill sys-
tem, is designed to operate the respec-
tive sinter parameters very precisely.
This involves both the temperature
rate up to the final temperature of the
sintering procedure and the related
times in the sintering cycle.
The sintering diagram clearly shows
the sequence of the entire sintering
process in the Therm2 (Fig. 9). It shows
the temperature rate up to the final
temperature of 1450°C: This tempera-
ture is held for two hours and lowered
using a controlled cooling phase to
900°C as well as the final cooling of the
furnace.
e Fig. 5 Prepared frame-
works, immersed in the
colour solution for basic
staining
e Fig. 6 Removal of the
bridges from the colour
solution after 10 seconds
e Fig. 7 Preparation of the
sinter tray with the stained
and dried bridges
d Fig. 8 Clear start
Therm 2 sintering
furnace
e Fig. 2 Trimming of the connectors
e Fig. 3 Thinning of the margins, light
polishing of the surface
e Fig. 4 Removal of the grinding dust
from the surface and the inside
Fig. 5
Fig. 2 Fig. 3
Fig. 4
Fig. 6
Fig. 7
Fig. 8