Bartlett 700 Series, Operation Manual

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24
APPENDIX A - CONE FIRE TEMPERATURE PROFILES
Firing Profiles for cone 04, temperature 1945
o
F (1063
o
C)
Slow Bisque Slow Glaze
Segment Rate
o
F
/hr
Temperature Stage
Time
Segment Rate
o
F
/hr
Temperature Stage Time
3 80 250 2.25 5 150 250 1.20
4 200 1000 3.75 6 400 1695 3.61
5 100 1100 1.00 7 120 1945 2.08
6 180 1695 3.31
7 80 1945 3.13
13 hrs 26 mins Total Time 13.43 6 hrs 54 mins Total Time 6.90
Fast Bisque Fast Glaze
Segment Rate
o
F
/hr
Temperature Stage
Time
Segment Rate
o
F
/hr
Temperature Stage Time
3 120 250 1.50 6 570 1695 2.85
4 300 1000 2.50 7 200 1945 1.25
5 150 1100 0.67
6 180 1695 3.31
7 108 1945 2.31
10 hrs 17 mins Total Time 10.29 4 hrs 6 mins Total Time 4.10
Firing Profiles for cone 6, temperature 2232
o
F (1222
o
C)
Slow Bisque Slow Glaze
Segment Rate
o
F
/hr
Temperature Stage
Time
Segment Rate
o
F
/hr
Temperature Stage Time
3 80 250 2.25 5 150 250 1.20
4 200 1000 3.75 6 400 1982 4.33
5 100 1100 1.00 7 120 2232 2.08
6 180 1982 4.90
7 80 2232 3.13
15 hrs 2 mins Total Time 15.03 7 hrs 37 mins Total Time 7.61
Fast Bisque Fast Glaze
Segment Rate
o
F
/hr
Temperature Stage
Time
Segment Rate
o
F
/hr
Temperature Stage Time
3 120 250 1.50 6 570 1982 3.35
4 300 1000 2.50 7 200 2232 1.25
5 150 1100 0.67
6 225 1982 3.92
7 108 2232 2.31
10 hrs 54 mins Total Time 10.90 4 hrs 36 mins Total Time 4.60
These charts show the segments for the four cone fire speeds for cone 04 and cone 6. Notice that the firing
profiles all end with segment 7 but they do not start at segment 1. The cone fire programs all end with
segment 7 and count back to get to the beginning segment which is not segment 1. If you program a vary-
fire program to mimic these profiles you would start numbering with segment 1, so for a Slow Glaze firing
you would have only 3 segments, 1, 2, and 3. The firing rates for cone numbers other than cones 04 & 6 are
the same as these but the end and final segment temperatures are different. The last segment (segment 7 in
the cone fire profiles) always starts 250
o
F below the final cone temperature.
The actual temperature reached during a cone fire program will vary based on the rate of temperature rise
during the last segment. This ensures the correct amount of heat-work is done with each cone fire program.
You can see the shut-off temperature by pressing “Review Program” after the firing has gone to CPLT. The
temperature displayed after the cone number is the actual temperature that the kiln shut off.