Mark C. Posted July 16, 2015 Report Share Posted July 16, 2015 Well this happens even to the old timers. I was loading my car kiln and a firing my small 12 cubic gas kiln to cone end point cone 11. A friend came over to help work on my 250 hp outboard fuel system ( extremely complex )I checked kiln and cone 10 was almost down with a stiff cone 11. I walked away saying I have to set a timer to remember as my head will be in the replacement of all fuel pumps in complex outboard system. Starting loading up tools for job and spaced the timer and the kiln. Later my helper came out and said the cone was gone and I had that oh my god feeling. Turned off kiln without looking in. I will know on Friday what it looks like the digital pyro said 2500 even-the most its ever read. I had glazed the whole load for a hot fire but not this hot. I'll follow up on friday as I/m firing car kiln all day tomorrow . I feel like a space cadet now-its been a decade or more since I have done anything close to this.I'm glad the whole load is on advancers as glaze will not stick to them. Mark Link to comment Share on other sites More sharing options...
Babs Posted July 16, 2015 Report Share Posted July 16, 2015 OOOHH Mark, Hope you find a few miracle effects to ease the pain. A long wait. Why don't we use timers more. Babs Link to comment Share on other sites More sharing options...
Marcia Selsor Posted July 16, 2015 Report Share Posted July 16, 2015 Hopefully you didn't get much heat work if it went fast. Keep us posted. Sometime you can get some amazing colors. Marcia Link to comment Share on other sites More sharing options...
Pres Posted July 16, 2015 Report Share Posted July 16, 2015 Happens to the best of us, even those of us that fire electrics without kiln setters! Link to comment Share on other sites More sharing options...
ChenowethArts Posted July 16, 2015 Report Share Posted July 16, 2015 @Mark C. I'll keep my fingers crossed for ya...let's hope that this turns out to be a happy accident. Please keep us posted, -Paul Link to comment Share on other sites More sharing options...
jrgpots Posted July 16, 2015 Report Share Posted July 16, 2015 Did both kilns read 2500? If so, you might get peek at the smaller one tonight. My fingers are crossed for you. The hard part is always the wait. Jed Link to comment Share on other sites More sharing options...
TwinRocks Posted July 16, 2015 Report Share Posted July 16, 2015 Cross your fingers and get a wristwatch with a timer? Hope you have some lucky surprises, some of the most inserting pottery skirts the line of heat tolerance, getting up to the melting point but backing off before it turns into a puddle. Link to comment Share on other sites More sharing options...
neilestrick Posted July 16, 2015 Report Share Posted July 16, 2015 Serious bummer. Reminds me of the cone 9 bisque firing I did in grad school... Link to comment Share on other sites More sharing options...
PRankin Posted July 16, 2015 Report Share Posted July 16, 2015 This is just as suspenseful as waiting for the New Horizons spacecraft to phone home and start downloading the closest approach photos. Let us know how it turns out. We're holding our breath and hoping for good news. Paul Link to comment Share on other sites More sharing options...
oldlady Posted July 16, 2015 Report Share Posted July 16, 2015 hoping for the best for the second time. this time i will click on POST. Link to comment Share on other sites More sharing options...
Joseph Fireborn Posted July 16, 2015 Report Share Posted July 16, 2015 best of luck! Link to comment Share on other sites More sharing options...
Mark C. Posted July 17, 2015 Author Report Share Posted July 17, 2015 Kiln is still at 620 degrees so I am waiting till the am to crack to when its below 300 degrees. Today is 92 so cooling is a tad slower. I have the big car kiln firing and under my kiln area is 100 degrees right now.The studio is a cool 73 as its shut up with the cool evening air in it still. Mark Link to comment Share on other sites More sharing options...
Benzine Posted July 17, 2015 Report Share Posted July 17, 2015 Have you tried blowing on it, to make it cool faster?... Best of luck. Link to comment Share on other sites More sharing options...
TJR Posted July 17, 2015 Report Share Posted July 17, 2015 Good luck, Mark. I hope it turns out well for you. Tom. Link to comment Share on other sites More sharing options...
Dale pots Posted July 17, 2015 Report Share Posted July 17, 2015 I hope you get some special pieces and it didn't all turn out to be a bunch of sculptures. Just as important did you get the fuel pumps done? The tuna should be getting close to you up there! Link to comment Share on other sites More sharing options...
neilestrick Posted July 17, 2015 Report Share Posted July 17, 2015 Do you have solenoids on the gas lines? If so, it would be a simple and relatively inexpensive job to add a high temp shutoff controller to the system. Link to comment Share on other sites More sharing options...
Mark C. Posted July 17, 2015 Author Report Share Posted July 17, 2015 No solenoids just a few simple valves-one for the pilot ring two for 6 burners. I have the door open and it looks ok I can see few runners-its still 200 degrees. The bottom fires hotter-I loaded the hot glazes there and they look ok. I'll unload and post photos later-we shall see what the whole story is. Cone 11 is flat on top shelve. Mark Link to comment Share on other sites More sharing options...
neilestrick Posted July 17, 2015 Report Share Posted July 17, 2015 It's always surprising what some glaze can handle. I've seen many overfired kilns that had far fewer losses than expected. Fingers crossed.... Link to comment Share on other sites More sharing options...
Dennis Bednarek Posted July 17, 2015 Report Share Posted July 17, 2015 finding this interesting. I know there is melting point for clay that varies between the different types of clay. If it were an 04 Clay I suspect runnong up to Cone 2 would cause a melt down. but when your talking about a Clay that is designed to run at Cone 11 I realy wonder how high it can go before you start getting a Melt down. Yes I know glazes react differently to different temperatures and this was a glaze firing. But I would suspect you could get interesting effects that could in some cases be positive with the excess heat. The big fear would be deformity of the pieces if it hit that extreme of a heat level. Link to comment Share on other sites More sharing options...
Mark C. Posted July 17, 2015 Author Report Share Posted July 17, 2015 One of the benefits of porcelain is it can take heat I had 11 runners from this fire-as you can see cone 11 is toast the cone next to it is cone 10. My satin matt is still buttery which is what I aim for. Some of the pieces are spectacular as you would expect-zero body issues. I'm feeling lucky mark Link to comment Share on other sites More sharing options...
Joseph Fireborn Posted July 17, 2015 Report Share Posted July 17, 2015 Disaster averted?! Link to comment Share on other sites More sharing options...
Min Posted July 17, 2015 Report Share Posted July 17, 2015 time to buy a lottery ticket i'm glad it went so well Link to comment Share on other sites More sharing options...
oldlady Posted July 17, 2015 Report Share Posted July 17, 2015 whew! DON'T DO IT AGAIN! Link to comment Share on other sites More sharing options...
Benzine Posted July 17, 2015 Report Share Posted July 17, 2015 Had you just showed us the pictures, and not mentioned over-firing, no one would have guessed. Beautiful work as always Mark! You are no doubt paid up with the Kiln Gods. What type of livestock do you slaughter for your offerings? Link to comment Share on other sites More sharing options...
Babs Posted July 18, 2015 Report Share Posted July 18, 2015 Get the grinder out. Now I hope your focus on the boat engine was 100% A lot more at stake out there beyond the blue horizon... Neil's advice is solid. Link to comment Share on other sites More sharing options...
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