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Pottery Tips and TechniquesCooling Rate Of a KilnUsually you don't have to know what the cooling rate of your kiln is, but certain ceramic glazes look better when cooled slowly after the kiln reaches maturity. |
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FORMULA FOR COOLING RATEThe kiln shuts off at 2200°F.After two hours, the temperature falls to 1800°F. 2200 minus 1800 equals 400 400 divided by 2 hours equals 200 Your cooling rate would be 200° per hour. Sometimes the cooling rate may get slower the closer the kiln gets to room temperature. If you have a manual kiln, figure the cooling rate of your kiln using a pyrometer and the low dial on your kiln. If your cooling rate is to fast, you would have to turn the kiln on low for a few minutes and then off, constantly checking the temperature reading on your pyrometer, until the kiln has cooled down as low as needed for the kiln load.
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All About Clay The best way of starting out is to take a few lessons. You will probably waste quite a bit in materials when you first get started. Figuring out how to truly make handmade pottery correctly and shape into what you want it to be can be quite an ordeal. The different tools that a normal shop will have can be fun to try. You will soon see which ones you like to use the most and then when you are ready you will know which ones to buy. When you get all set up, just enjoy the
hobby and have fun at it. Some people get pretty
serious and start selling their creations at craft
fairs and small stores, but others just like
to create items for themselves, relatives, and
friends. Whichever kind of handmade pottery you
desire to endeavor, enjoy the hobby and have
fun doing it. |
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