From Zircar
|
Atmospheres
Oxidizing Reducing Inert Vacuum |
What is Your Process Environment?
If all thermal processes required an oxidizing or inert atmosphere, the issue of process environment would not be of much concern. The world is not so simple. Fortunately ZIRCAR offers high quality insulation products which are suitable for use in a variety of industrial environments. Our SiO2 bonded products provide the highest temperature rating and dimensional stability of all compositions-when used in an oxidizing or inert atmosphere. For reducing atmospheres, which dissolves SiO2 at temperatures over 1200°C, our "AA" Al203bonded products contain virtually no free SiO2. Even though all ceramic fiber products are hydrophilic and want to absorb H20 from the atmosphere our alumina bonded and specially processed AL-30AAH has so little relative surface area that once its atmospheric moisture is driven off its vacuum suitability is established.
|
Binder |
Temperature |
Atmosphere |
Products |
None |
300°C to 1800°C |
All |
Alumina Blanket & Bubbles |
SiO2 |
Cryogenic to 1825°C |
Oxidizing, Inert |
SALI, ZAL, ASH, AX, ZIRPOR, ZMAG |
Al2O3 |
300°C to 1700°C |
Reducing, Vacuum, Inert |
ZAL-AA, AL-30AA, |
Zircast95 http://www.zircarceramics.com/index2.htm
instructions for pouring http://www.zircarceramics.com/pages/particulates/ziralcast95mixing.htm
From the DIY forge and knifemaking guys.
Mizzou and Cast-o-lite brands. the Cast-0-lite insulating pourable refractory has a k of 0.58 watt/meter-degK. castolite is by harbison walker http://www.hwr.com/
http://www.hightemptools.com/castablerefractory.html
DIY insulating castable refractories with perlite
http://www.myheap.com/chapter-1-materials/how-to-make-irc.html
harbison walker http://www.hwr.com/ Moldable
INSWOOL MOLDABLE is a 2300°F ceramic fiber, putty-like consistency material, used for linings up to three inches thick, to pack large voids, or even fill thin cracks. It can be troweled or hand packed into place.
INSWOOL MOLDABLE is light weight, with very low thermal conductivity, and therefore a good insulator, yet it develops a strong hot face surface to withstand physical abuse and high air velocities as compared to conventional ceramic fiber products. It is also used as a high temperature gasket material, and as a general purpose patching product. Its ability to compress makes INSWOOL MOLDABLE an excellent material for expansion joints and for filling contraction cracks. It is also an ideal material to fill ceramic cuplock anchors for ceramic fiber blanket linings, and can be used in contact with molten aluminum.
INSWOOL MOLDABLE has excellent thermal shock resistance, and can be dried or put into service immediately with no pre-heat required, with the exception of direct molten metal contact. Then the INSWOOL MOLDABLE should first be thoroughly dried, and fired, to remove all mechanical water the entire depth of the material, to avoid dangerous steam explosion.
Pumpable
INSWOOL PUMPABLE is a 2300°F ceramic fiber, putty-like consistency material, especially formulated for pumping with special equipment. It is usually used for pumping behind existing hot face linings for insulating purposes; however it can be used to fill small voids and thin cracks.
INSWOOL PUMPABLE is a light weight material with very low thermal conductivity, and therefore a good insulator. It dries to a firm, board-like consistency, for good sturdy integrity. Its ability to compress makes it ideal for expansion joints, and for filling contraction cracks. In addition it is used in contact with molten aluminum.
Although normally used as a backup material for hot spots, as mentioned above, when used as a hot face material, the INSWOOL PUMPABLE has excellent thermal shock resistance, and can be dried or put into service immediately with no pre-heat required, with the exception of direct molten metal contact. Then the INSWOOL PUMPABLE should first be thoroughly dried, and fired, to remove all mechanical water the entire depth of the material, to avoid dangerous steam explosion.
http://www.zircarceramics.com/pages/moldables/index.htm
Zircar microsil. k= .02
http://www.zircarceramics.com/pages/microporusinsulation/microporous.htm
http://www.hightemptools.com/itcproducts.html
http://itccoatings.com/coatings/
ITC for metal protection
https://secure.anvilfire.com/page.php?theLocation=/Resources/Product/ITC/ITC-213.xml/
good source of ITC products at anvilfire.com https://secure.anvilfire.com/page.php?theLocation=/Resources/Other_Public_Pages/International_Technical_Ceramics
Emisshield.
http://www.hwr.com/products/Product_Applications/AB2-Crucible_Furnaces-rev_03-07.pdf