Instructions for use (rev 251121)
e.ON sinter base
UGIN DENTAIRE
18
7.
ADVICES - PRECAUTIONS FOR USE
GENERAL
-
During operation and after use, the surface of
the furnace head may become very hot: avoid
direct contact
with the skin
(risk of burns).
-
eON sinter base is equipped with
heat
extractors
to control the temperature of the
components and guarantee safety:
do not
cover the furnace during use
and
do not place
objects
on the furnace or on the ventilation
openings.
CYCLE START AND CONFIGURATION
-
Do not open the door during high temperature
cycles
: danger of burns and risk of irreversible
damage to heating elements and refractories.
-
At the end of the cycle,
the temperature must
be lower than 300°C before opening the
furnace. Do not switch off the power supply
,
because heat extractors are stopped and the
internal temperature increases and can
damage the equipment.
-
If the
temperature is above 300°C, it is not
possible to start a cycle
(risk of damaging the
refractories.) Wait for cooling: temperature
displayed on the screen below 300°C.
-
When the
temperature is below 200°C, the
power supply can be switched off
(switch at
the back of furnace).
-
At the end of the cycle, the furnace
automatically returns to the
standby position
.
-
When the
furnace is in standby, the door must
be closed
to avoid condensation.
-
At the start of the cycle, avoid using an
increase rate too fast
to avoid damaging the
heating elements. Likewise,
a large difference
between two increase rates is not
recommended.
-
Observe the recommendations of the
manufacturer of Zirconia
to avoid significant
gaseous emissions which may damage the
muffle.
-
For the first time or after a long time without
use, need to
preheat the muffle furnace 1 hour
at 120°C follow 2 hours at 300°C
to eliminate
condensation and avoid fractures of the
refractory material.
-
Zirconia sintering temperatures are given as
indicative by disc manufacturer.
If necessary,
these one can be adjusted from -15°C to +15°C
around the final temperature recommended.
HEATING ELEMENTS (RODS)
-
Molybdenum silicon rods are very brittle at
room temperature:
do not handle them.
-
The
heating
elements must not be maintained
for long periods between 400°C and 700°C
to
avoid their oxidation.
