Safety Emporium eyewashes
Safety Emporium eyewashes

Interactive Learning Paradigms, Incorporated

DCHAS-L Discussion List Archive

About This Archive  |   DCHAS-L 2012 Index   |   DCHAS-L Yearly Index   |   DCHAS-L Home Page

About This Archive

DCHAS-L 2012 Index

DCHAS-L Yearly Index

DCHAS-L Home Page

Previous by Date

Subject: Re: [DCHAS-L] Moldatherm furnace concerns

Date: Oct 13, 2012 09:53 UTC

Author: ACTSNYC**At_Symbol_Here**CS.COM

Next by Date

Subject: Re: [DCHAS-L] Moldatherm furnace concerns

Date: Oct 14, 2012 10:58 UTC

Author: Bristol, John (JR) <JRBristol**At_Symbol_Here**DOW.COM>

From: ACTSNYC**At_Symbol_Here**CS.COM

Subject: Re: [DCHAS-L] Moldatherm furnace concerns

Date: Oct 14, 2012 02:36 UTC

Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>

Message-ID: <6804.718f2a5.3dac6034**At_Symbol_Here**cs.com>

In-Reply-To:  

Demystify: 

That might be true of Moldatherm equipment, but there are a variety of RCF products.  Some of the ones we use for glass annealing ovens and raku ceramic kilns are of the type that are only stable to about 1800 o F.   But for high fire kilns, we may need to fire to between 2700-2800 o F depending on the speed at which we reach end points of around cone 10 or so.  Then different types of RCF is used. 

And every time any of these kilns, high or low fire, are loaded and unloaded, the sunlight will reveal the fibers in the air.  They get on the sleeves of the people brushing against them. And that's why I get so exercised about this application. I think it is just plain wrong.

Monona




In a message dated 10/14/2012 11:49:43 AM Eastern Daylight Time, JRBristol**At_Symbol_Here**DOW.COM writes:


As a word of caution, it is important to keep in mind that there are many furnace units out there being bought and sold USED by universities and companies.  In most cases you do not know the history of the equipment.  With this material, any temperatures above 1800 degrees F (around 980 degrees C) will start to degrade the insulating material, making it more friable.  It is important to inspect (and replace if necessary) the insulating material when purchasing a used piece of equipment, but also be diligent in keeping good usage and inspection records with any of these units (if purchased new or used).

 

Best Regards,

John

Previous post  |  Top of Page  |  Next post