| Activity: Slumping | Set Point | Ramp | Ramp Time | Soak Time | Elapsed Time | |
|---|---|---|---|---|---|---|
| (14.8 hour cycle) | °F/°C | Rate | in Minutes | in Minutes | Minutes/Hrs | |
| Ramp up from room temp | 1000°F/538°C | 250°F/hr (139°C/hr) | 240 | 0 | 240/4 | |
| Presoak (distribute that heat!) | 1000°F/538°C | n/a | n/a | 30 | 270/4.5 | |
| Ramp up to Slump | 1200°F/649°C | 250°F/hr (139°C/hr) | 48 | +/– 30 | 348/5.8 | |
| Crash cooling (vent if possible) | 1000°F/538°C | As fast as possible | 30 or less | 0 | 378/6.3 | |
| Pre-Annealing soak | 1000°F/538°C | n/a | n/a | 60 | 438/7.3 | |
| Annealing ramp | 800°F/427°C | 60°F/hr (33°C/hr) | 200 | 0 | 638/10.6 | |
| Cooling ramp #1 | 600°F/316°C | 120°F/hr (67°C/hr) | 100 | 0 | 738/12.3 | |
Cooling ramp #2 (vent kiln to help cool) | 100°F/38°C | 200°F/hr (111°C/hr) | 150 | 0 | 888/14.8 | |
|
Activity: Fuse-to-Stick | Set Point | Ramp | Ramp Time | Soak Time | Elapsed Time | |
| (14.9 hour cycle) | °F/°C | Rate | in Minutes | in Minutes | Minutes/Hrs | |
| Ramp up from room temp | 1000°F/538°C | 250°F/hr (139°C/hr) | 240 | 0 | 240/4 | |
| Presoak (distribute that heat!) | 1000°F/538°C | n/a | n/a | 30 | 270/4.5 | |
| Ramp up to Fuse-to-Stick point | 1350°F/732°C | 250°F/hr (139°C/hr) | 84 | +/– 45 | 354/5.9 | |
| Crash cooling (vent if possible) | 1000°F/538°C | As fast as possible | 30 or less | 0 | 384/6.4 | |
Pre-Annealing soak | 1000°F/538°C | n/a | n/a | 60 | 444/7.4 | |
Annealing ramp | 800°F/427°C | 60°F/hr (33°C/hr) | 200 | 0 | 644/10.7 | |
Cooling ramp #1 | 600°F/316°C | 120°F/hr (67°C/hr) | 100 | 0 | 744/12.4 | |
Cooling ramp #2 | 100°F/38°C | 200°F/hr (111°C/hr) | 150 | 0 | 894/14.9 | |
| (vent kiln to help cool) | ||||||
Soak times at Full Fuse are dependent on peak temperature chosen and on desired look. Two options are shown. Option 1, the slower, is easier to stop at a specific point of progress, and minimizes bubble entrapment when fusing sheet glass. Option 2, the faster, minimizes devitrification.
| Activity: Full Fuse | Set Point | Ramp | Ramp Time | Soak Time | Elapsed Time | |
|---|---|---|---|---|---|---|
| °F/°C | Rate | in Minutes | in Minutes | Minutes/Hrs | ||
Note: An additional 30 min. soakat 1300 will minimize bubble entrapment. (16.1 hour cycle) | ||||||
| Ramp up from room temp | 1000°F/538°C | 250°F/hr (139°C/hr) | 240 | 0 | 240/4 | |
| Presoak (distribute that heat!) | 1000°F/538°C | n/a | n/a | 30 | 270/4.5 | |
| Ramp up to Full Fuse (option 1) | 1450°F/788°C | 250°F/hr (139°C/hr) | 108 | +/– 45 | 423/7.1 | |
| Ramp up to Full Fuse (option 2) | 1520°F/827°C | 250°F/hr (139°C/hr) | 125 | +/– 15 | ||
| Crash cooling (vent if possible) | 1000°F/538°C | As fast as possible | 30 or less | 0 | 453/7.6 | |
| Pre-Annealing soak | 1000°F/538°C | n/a | n/a | 60 | 513/8.6 | |
| Annealing ramp | 800°F/427°C | 60°F/hr (33°C/hr) | 200 | 0 | 713/11.9 | |
| Cooling ramp #1 | 600°F/316°C | 120°F/hr (67°C/hr) | 100 | 0 | 813/13.6 | |
| Cooling ramp #2 | 100°F/38°C | 200°F/hr (111°C/hr) | 150 | 0 | 963/16.1 | |
| (vent kiln to help cool) | ||||||
Assumes open face mold filled with casting billets or glass mixtures (35.1 hour cycle) |
||||||
| Activity: Kiln Casting | Set Point | Ramp | Ramp Time | Soak Time | Elapsed Time | |
| 15”x15”x 3/4” Slab | °F/°C | Rate | in Minutes | in Minutes | Minutes/Hrs | |
| Ramp up to Full Fuse | 1550°F/843°C | 120°F/hr (67°C/hr) | 775 | n/a | 775/12.9 | |
|
Fuse Soak (to suit design) | 1550°F/843°C | n/a | n/a | +/– 60 | 835/13.9 | |
Crash cooling (vent if possible) | 1000°F/538°C | As fast as possible | 30 or less | 0 | 865/14.4 | |
|
Pre-Annealing soak | 1000°F/538°C | n/a | n/a | 120 | 985/16.4 | |
|
Annealing ramp | 800°F/427°C | 20°F/hr (11°C/hr) | 600 | 0 | 1,585/26.4 | |
Cooling ramp #1 | 500°F/260°C | 50°F/hr (28°C/hr) | 360 | 0 | 1,945/32.4 | |
Cooling ramp #2 | 100°F/38°C | 150°F/hr (83°C/hr) | 160 | 0 | 2,105/35.1 | |
Open Kiln | Room Temp. | Take time for this! | ||||