Best to practice on some bad spruce.
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| torrefication protocol? http://luthiersforum.com/forum/viewtopic.php?f=10101&t=45970 |
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| Author: | nkforster [ Thu Jul 02, 2015 7:10 am ] |
| Post subject: | torrefication protocol? |
There seems to be plenty of interest in torrefication just now. I've got access to a company who have the required equipment, but trying to find out specifics is proving difficult. Their experience is in a different field of torrefication. Anyone got any ideas about the details of the process? The times and temperatures involved for processing spruces? Could save ruining a lot of good spruce! |
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| Author: | printer2 [ Thu Jul 02, 2015 7:46 am ] |
| Post subject: | Re: torrefication protocol? |
Best to practice on some bad spruce.
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| Author: | kencierp [ Thu Jul 02, 2015 8:43 am ] |
| Post subject: | Re: torrefication protocol? |
You need to get a "Professor Peabody --Way Back machine" like Martin's! John Greven did mentioned to me that he thought the Martin procedure used lower temperatures and longer cook times than the others. You might get a feel for the temp and time looking through the Yamaha websites and advertisements they have been doing this for a couple of decades. |
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| Author: | Bryan Bear [ Thu Jul 02, 2015 8:54 am ] |
| Post subject: | Re: torrefication protocol? |
I doubt any of the entities doing this are gong to just tell you the details of their procedure. You will have to experiment and arrive at what you want with trial and error. To me this seems like quite a challenge since no one seems to be able to say what the end result should look/feel like. |
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| Author: | kencierp [ Thu Jul 02, 2015 8:59 am ] |
| Post subject: | Re: torrefication protocol? |
http://www.yamaha.com/about_yamaha/research/are/ |
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| Author: | J De Rocher [ Thu Jul 02, 2015 12:33 pm ] |
| Post subject: | Re: torrefication protocol? |
May be some relevant info in this patent issued to Yamaha titled "Method for manufacturing modified wood": http://www.google.com/patents/US6667429 |
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| Author: | kencierp [ Thu Jul 02, 2015 12:53 pm ] |
| Post subject: | Re: torrefication protocol? |
Good thinking Jay! Lots of info on that document. |
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| Author: | DanSavage [ Thu Jul 02, 2015 5:22 pm ] |
| Post subject: | Re: torrefication protocol? |
More food for thought on torrefaction: CHEMICAL CHANGES IN FIR WOOD FROM OLD BUILDINGS DUE TO AGING http://www.cellulosechemtechnol.ro/pdf/ ... .79-88.pdf Characteristics of aged wood and Japanese traditional coating technology for wood protection http://www.citedelamusique.fr/pdf/insti ... nglais.pdf Wood science for conservation of cultural heritage – Florence 2007 www.oapen.org/download?type=document&docid=343706 |
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