ST215 User Handbook
Page
15
Sample Ceramics Programs
Program
Number
Program Name
Seg 1
Ramp
Rate
°C/hr
Seg 1
Soak
Temp
°C
Seg 2
Ramp
Rate
°C/hr
Seg 2
Soak
Temp
°C
Seg 2
Soak
Time
hr.mn
1
Slow Bisque
60
600
FULL
1000
00.00
2
Normal Bisque
100
600
FULL
1000
00.00
3
High Bisque
100
600
FULL
1140
00.00
4
Brush-on
Earthenware Glaze
1000°C (Cone 6)
100
300
FULL
1000
00.00
5
Standard Earthenware
Glaze 1100°C
100
300
FULL
1100
00.00
6
Earthenware High
Temperature Glaze
1140°C
100
300
FULL
1140
00.00
7
Mid-Range
Stoneware Glaze
1200°C
100
300
FULL
1200
00.00
8
Standard
Stoneware Glaze
1260°C (see note)
100
300
FULL
1235
00.00
9
Onglaze 780°C
100
400
FULL
780
00.00
10
Lustre 750°C
100
400
FULL
750
00.00
Seg 1
Soak
Time
hr.mn
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
00.00
Seg 3
Ramp
Rate
°C/hr
End
End
End
End
End
End
End
End
End
End
Note
It has been found that a kiln controller will give greater heat work as the temperature
increases. Therefore to achieve a stoneware firing of cone 8-9 we suggest setting the
final soak temperature to 1235°C. A slight adjustment can then be made after the first
firing. It should be remembered that kiln controllers are indicators of temperature and
the effects of faster or slower firings may cause extreme variations in the end result.
This is known within ceramics as
“heatwork”. Cones are measures of heatwork and it
is strongly recommended that cones are always used in conjunction with a kiln
controller to appreciate the differences between heatwork and temperature indicated
by the controller. Stoneware firings will also demonstrate the greatest potential
differences between heatwork and indicated temperature.