it wants to be able to withstand heat of over 1500 c and not let the heat pass through itsize wise i wants to cover 300mmx30mm
Show how to put knitting on waste yarn.
This Site Might Help YouRE: Knitting Question: Waste yarn? Could someone please explain the fallowing? I'm knitting mittens, by the way Place Thumbhole: Next Round: K2, p1, C4F, p1, k12; k next 5 sts using waste yarn, then return these 5 sts to left needle and knit them again using working yarn; k to endNote: Waste yarn will later be removed,.
This Site Might Help YouRE: Knitting Question: Waste yarn? Could someone please explain the fallowing? I'm knitting mittens, by the way Place Thumbhole: Next Round: K2, p1, C4F, p1, k12; k next 5 sts using waste yarn, then return these 5 sts to left needle and knit them again using working yarn; k to endNote: Waste yarn will later be.
No matter what substance you choose, heat will always pass through it, so it is a matter of minimizing how much heat gets throughVarious refractory materials are available that will meet your needsA simple insulating firebrick with a 2800 F rating would handle your situation very wellYou should be able to find one in a 13 1/2 lengthInsulating firebricks are easily shaped, so you shouldn't have any problem cutting one to the size that you needAlternatively, refractory ceramic fiber also does a nice job and is available in temperature ratings in the range that you're looking atRCF comes in blanket form and also as more rigid boards, though you may end up having to buy a good bit more than what you needYou might look at aerogelAerogels are excellent insulators, but I'm not sure that they can hit your temperature specThey're awfully fragile as wellWhat temperature do you need to maintain on the cold face? How much thickness is there between the hot face and the cold face? Insulating fire bricks are pretty amazing insulatorsWhen my kiln is at 1300 C, I can place my hand on the outside without any worry of getting burnedBut the wall is 9 thickThe thinner the wall, the less temperature drop there will be between the hot face and the cold face (in other words, the outside gets hotter)I can tell you from experience that 1500 C is pretty freakin' hotIt's a temperature that's not easy to produce, nor is it easy to containWhat, pray tell, are you trying to make?
