gebrauchsanweisung instruction for use vintage al verblendkeramik ...

6
Specifications
6-1. Firing schedule
6-2. Technical Data
Table 6 - Firing schedule table
Drying
Type of porcelain time
(min.)
1 st Opaque Liner
2 nd Opaque Liner
Cervical
1 st Body, Enamel
2 nd Body, Enamel
1 st Margin
2 nd Margin
7~8
7~8
5~6
5~6
5~6
5~6
5~6
Increasing
temperature
( o C /min.)
50
50
50
50
50
50
50
500°C
500°C
650°C
650°C
650°C
650°C
650°C
920~940°C 1 min.
920~940°C 1 min.
900~920°C 1 min.
900~920°C 1 min.
900~920°C 1 min.
960~980°C 1 min.
960~980°C 1 min.
(1) Coefficient of thermal expansion and Glass transition point
Opaque Liner
Margin
Body
Cervical Trans
Correction
2.Firing
4.Firing
2.Firing
4.Firing
2.Firing
4.Firing
2.Firing
4.Firing
2.Firing
4.Firing
Coefficient of Thermal
Expansion (25~500 o C)
Glass
Transition Point
6.0 x 10 -6 K -1 585°C
PLEASE NOTE :
As VINTAGE AL has a different coefficient of thermal expansion to those of
VINTAGE or VINTAGE HALO, never mix or combine them.
(2) Solubility Test (ISO Specification : Under 100 µg/cm 3 )
7.0 x 10 -6 K -1 610°C
6.7 x 10 -6 K -1 590°C
6.5 x 10 -6 K -1 575°C
6.4 x 10 -6 K -1 565°C
Self Glaze
1 st Gum
5~6
5~6
50
50
650°C
650°C
900~920°C 0-0.5 min.
860~880°C 1 min.
Body, Enamel
Solubility amount (µg/cm 3 )
7.7
Gum Glaze
5~6
50
650°C
860~880°C 1 min.
Specifications
28
1 st Correction
Correction Glaze
5~6
5~6
50
50
Vacuum firing
Firing in the air
PLEASE NOTE :
Firing conditions vary due to the different designs and operating voltages of
porcelain furnaces. It is essential to carry out test firings before using the porcelain
for actual restorations.
Hint
650°C
650°C
860~880°C 1 min.
860~880°C 1 min.
Heat rate
As the heat conductivity of an alumina coping is low compared to
that of a metal coping, it is advisable to set the furnace to a low heat
rate.
29
Specifications