Mullitokremnizyomisty cotton wool effective insulating material which is used as heat-insulating and thermocompensation material, for production of fire-resistant products, such as plates, paper, etc. Are made of oxides of aluminum and silicon with the subsequent formation of fibers by method of a razduv. Has the form of the cloth twisted in a roll. For temperature increase of application can it is entered chrome oxides. Fibers are steadier against influence of the oxidizing and neutral environment, in the recovery environment heat-insulating properties decrease.
MKRV-200 (mullitokremnezyomisty felt) of GOST 23619-79 (with changes 1,2)
MKRV-100 (mullitokremnezyomisty felt) of GOST 23619-79 (with changes 1,2)
Are made of fiber of mullitokremnezyomisty structure which is made by melting in the electric furnace of oxides of aluminum and silicon with the subsequent formation of fibers by method of a razduv. For temperature increase of application chrome oxides can be entered. Have the form of the cloth twisted in a roll. Felt from cotton wool and felt passes additional thermohardening in difference (at a temperature more than 400 C). Fibers chemically resistant to influence of acids and alkalis. Using at high temperatures, it is necessary to protect from effect of the concentrated alkalis, fluoric and phosphoric acids. These are rather strong, flexible and technological insulating materials. Are easily cut, cut on forms, are pasted by inorganic glues or are fixed by mechanical fastenings.