Digitalfire Firing Schedule Database

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Bory 1 Fara Shimbo Crystalline Glaze

Celestite

Cone 6 Crystal Glaze Plainsman

Fa's Number Five

GC106 Base Fara Shimbo Crystalline Glaze

Mastering Glazes Cone 6

Plainsman Bisque Firing Schedule

Plainsman Cone 10R Firing

Plainsman Cone 6 (Large Kiln)

Plainsman Cone 6 Electric Standard

Plainsman Typical Cone 04 Typical

Shimbo Crystal Holding Pattern 1

Shimbo Crystal Holding Pattern 2

Shimbo Crystal Holding Pattern 3

Shimbo Crystal Schedule 1

Wollast-O-Matte Fara Shimbo Crystalline Glaze

Plainsman Cone 6 Electric Standard

Rate (C) Temp (C) Hold (Min) Step Note
55 104 120 1  
167 482 0 2  
83 593 0 3  
167 945 0 4  
60 1185 20 5 30 minutes heavy load
278 1035 0 6  
83 816 0 7 Off

This is for a Cone-Art 2818D kiln with an exhaust fan on at start of firing.

If the kiln is full, do the first step overnight, 10 hours or more (electric kilns have poor ventilation, this step is needed to drive out all residual or remaining water from body and glaze.

Include step 4 and 5 if you are firing matte glazes (that need to crystallize) or reactive glazes that need to variegate (form multiple phases) and crystallize.

This firing assumes that a good bisque has been done.

If Cone 6 has fallen too much copy the top temperature in all three ramps 10 degrees F:
-Change top temperature in R4 to 1723F
-Change top temperature in R5 to 2155F
-Change top temperature in R6 to 1885F

If cone 6 still does not fall (e.g. you fire heavy loads), increase the hold time in R5 by 5 minute increments.

The rate at the end of the fired is derived by subtracting 240C from the final temperature and firing at 60C/hr from there.

June 2013: We are going to change this schedule to hold for 15 minutes, drop 100 degrees and hold for 45. We are finding that this produces boron glazes with fewer pinholes.


By Tony Hansen

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