|
|
Register | All Photos | FAQ | Members List | Calendar | ShopStream (Radio/TV) | Search | Today's Posts | Mark Forums Read |
Tool Time Let's talk shop. Equipment, Tips & Tricks, Safety issues - Post it here. |
|
Thread Tools | Display Modes |
#1
|
||||
|
||||
Refractory cement over elements
Hi there,
Looking for some advice with regards to an electric heat treat oven. I am currently rebuilding an tubular electric heat treat oven. The original one had an inner ceramic tube (8mm) with the element wrapped around it and then a couple of wraps of kale wool. What I am using is ceramic fibre board as my insulation material with thermal conductivity of 0.15W/mK. When I took the old furnace apart the old ceramic tube came out in pieces, so what I would like to know is, instead of getting another ceramic tube made and after putting the element into grooves made into the fibre board, can I cover the element with refractory cement with a thermal conductivity of 1.2W/mK? So I basically want to make a integral inner tube. The reason I am asking is after reading the Kanthal Handbook talking about furnace wall load, I am worried that after covering them with mortar, the element may overheat during usage. Any advice will be greatly appreciated! __________________ Duane Salzwedel https://www.facebook.com/Salzwedel-K...6180547389862/ Instagram: salzwedel_knives South Africa |
#2
|
|||
|
|||
I do not think putting cement directly on the coils will be helpful. A burnout looks like the probable conclusion.
__________________ Now it says Guru and it used to say Master. I think I like Master better, though skilled would be the best description |
#3
|
||||
|
||||
That was what I was worried about. I think the safest option will be to either repair the original ceramic tube or get a new one made.
__________________ Duane Salzwedel https://www.facebook.com/Salzwedel-K...6180547389862/ Instagram: salzwedel_knives South Africa |
#4
|
|||
|
|||
Itll overheat. Elements arent meant to be enclosed like that, theyll overheat for sure. There are adhesives like Pyrolite that are made for securing elements to kiln ceilings, but even those arent meant to be used to cover the element.
|
#5
|
||||
|
||||
That does answer my question. Thank you very much for the feedback. I won't be covering it.
__________________ Duane Salzwedel https://www.facebook.com/Salzwedel-K...6180547389862/ Instagram: salzwedel_knives South Africa |
#6
|
|||
|
|||
I agree that the safest option will be to either repair the original ceramic tube or get a new one made. Tell me more about what happened to your stove so I can help you. Also, you can look here for a specialist who can help you to fix it. My friend recently became an electrical inspector, and from his words, I realized that the range of their work is large. And undoubtedly it became much more interesting for him to work than like an ordinary electrician. And if you decide to fix it by yourself, firstly consult at least with a specialist or watch training videos on Youtube. Be careful not to get hurt and break something. Good luck!
Last edited by SarahMann055; 03-29-2021 at 01:58 AM. |
Tags |
a, advice, ca, ceramic, furnace, heat, heat treat, integral, made, make, material, question, repair |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Refractory Cement as anti-scaler | David Eye | Heat Treating and Metallurgy | 21 | 02-22-2016 09:22 PM |
Photoshop Elements 6 or 5 | R. D. Finch | Knife Photography Discussion | 4 | 12-21-2007 09:34 PM |
Bought photoshop elements 5 | SVanderkolff | Knife Photography Discussion | 3 | 06-14-2007 10:11 PM |
PS elements 3/Photoshop CS | rhrocker | Knife Photography Discussion | 4 | 12-20-2004 01:33 PM |
Alloys and trace elements | Slicer | The Newbies Arena | 2 | 02-20-2002 09:10 PM |