| 摘要 |
<p>The invention concerns a crack free insulating refractory material made from a composition comprising 20 80 % by weight of a ceramic matrix, 5 40 % by weight of insulating microspheres, 0.5 15 % by weight of one more binders, 5 20 % by weight of a metal or a metal alloy able to melt during the preheating or the first minute of use and 0 25 % by weight of water. The ceramic matrix is preferably comprised of vitreous and non vitreous grains.</p> |
