| finally. a chunk of glass. of decent quality. that i, erm, well, i arranged to be heated from raw dry powdered ingredient. hooray!|
6 hrs @ ~1300ºc - kinda seedy, but well combined.
| hooray for previous entries, which have (pictorially) shown the beginning of this process.|
gas burner set in place, furnace on bricks, crubile inside - with batch in it. GO!
commercial 'artisan' batch. i know it works at which temps. good glass i recommend it.
| i realised i hadn't shown the silica carbide crucible in place. here it is right at the end of the melt.|
you can see the swirly pattern the flame would have had to make during it's journey to the exhaust flue.
interesting it got hotter when i didn't run flat out. sad.
|A rare action shot. myself and amy (a consistently useful sidekick ;) opening the kiln and 'having a look'. we opened the hotbox at around ~1200ºc. it's cool when your crucible still glows ;)|
|looking down into the hotbox, we can see the glow remaining from the last of the glass. i had tipped it into the bucket (below). then put it back here for safe keeping...|
|the bucket of glass. will weigh it in the morning. it is particularly granular, as i had the bucket filled with water, and it frits better this way. i recon it's just made bubbles that i'll have to squeeze out.|
| finally - for those of you saying 'yes well, how many rainforests have you burnt down now?' i have a simple answer 'not many, i'm as disappointed as you' |
10am - 4pm the lpg gas use.
10 - 12 burner flat out @ 50 psi. 1100ºc
12 - 2 burner flat out @ 25 psi 1150ºc
2 - 4 burner turned down @ (barely) 2 psi. 1250ºc 1300ºc
draw your own conclusions