Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Kilns 101

No description
by

Mike Sievers

on 27 October 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Kilns 101

Kiln Room Design
Venting
Pre-firing
Check List
Loading The Kiln
Programming The Kiln
During and After the Firing
Maintenance
Overview
Kilns 101
Presented By
We help people make great things!
18” Clearance
Flooring
Room Temperature
Receptacle Location
Sprinkler Location
and Ratings
Access and Racking
Venting
Kiln Room Design
Why Do We Vent
Room Venting vs
Kiln Venting
Downdraft Venting
Brighter Colors
Better Bisque
Better For Your Kiln
Better Heat Distribution
Venting
Make sure cord is not touching the kiln
Check for flammable material around the kiln
Pre-Firing Checklist
Make sure downdraft vent and room vent are on.
Make sure peep plugs are in and lid is closed securelyIf you don’t have a DownDraft vent
leave top peep plug out during entire
firing and prop lid up to 1000 degrees.

Plan on being there when the kiln is
scheduled to turn off.
Loading the Kiln
Inspect shelves
Use stilts if needed
Clearances
Stagger Shelves
Let pieces "See the Heat"
Distribute Mass
Use Cones
Make sure greenware is dry
Clearances
1” From Slab
2” From Lid
1” From Side
2” From Thermocouple
Programing
What is a program
Why do we use them
ConeFire vs Ramp Hold
Entering a
ConeFire Program
Entering A
Ramp Hold Program
Advanced Features
Reactions
Physical water (steam, 212°F)
Chemically combined water (940-1130°F)
Quartz Inversion (1058°F)
Carbon burnout (1200 - 1400°F)
Cone correlation (w/i 100°F of final Temp.)
Preset Programs Designed by Ceramic Engineers
User Calculated Cone Correlation
Write Your Own Program
Cone Correlation
3 Temperature Rate Settings
Enter Exact Temperature Rates
For General Use
For Custom Projects
Controlled Cooling
No Controlled Cooling
Ceramics Only
Ceramics, Glass, PMC, Metal...
Cone Fire
Ramp and Hold
Safety
Max Temp
Double Key Press
Diagnostic
Amps
Watts
Cone Correlation
Advanced Features
2 Key Start
Max Temp
Diagnostics
Cone Correlation



Plan on being there when the kiln is
scheduled to turn off.

Unload the kiln at or below 125 degrees.

Inspect Cones and take notes.
After the Firing
Hardware
Plug
Thermocouple
Vacuum
Elements
Brick
Bands
Maintenance
Look For Loose or Rusted Screws.
Inspect Lid Brace and make sure it is secure before releasing the lid
Inspect Hardware
Check plug and receptacle for signs of damage, such as discoloration our loose prongs.
Inspect Plug
Tighten Bands
Hold worm screw assembly with pliers while you tighten the bands.
Vacuum the kiln every 20 to 30 firings.
Careful not to touch the vacuum hose to the thermocouple
Drift towards over-fire so check your witness cones.
Replace bent, cracked or heavily scaled thermocouples
Some discoloration and scaling is normal
Vacuum Element Grooves
Inspect Thermocouples
Three Types
MI Cable
8 Gauge
Type S
Increase in Resistance as they age.
Resistance Measured In Ohms
Firing Time Increases Gradually Elements Age
5% Going – 10% Gone
Inspect Elements
MODEL VOLT PHASE #1 #2 #3 #4 #5 #6
KM1227 240 1 13.6 13.6 16.3 16.3 13.6 13.6
Repair
Replace Brick When You Replace Elements
Wall Bricks Are Not Cemented Together
Temporary Brick Repair
Unplug Kiln
Insert pins at 30 degree angle to form a ledge
Space pins every ¾ inch
You can patch slabs but generally not lids.
Replace Thermocouple
Replace Elements
Replace Brick
Repairs
Cool = Still Wet
Replace Relays
Questions?
Full transcript