How to use alumina hollow ball as refractory castable

There are indeed many types of admixtures in refractory castables. The amount of admixtures varies with the performance and function of the admixture. It is a few ten-thousandths to a few percent of the total amount of amorphous refractory components, generally Add it when mixing the components of the amorphous refractory or before mixing. To give a brief example, when the temperature is too low in cold outdoor construction in winter, it is necessary to add a coagulant to speed up the setting speed of the castable to ensure the performance of the castable.

Alumina hollow ball castable

(1) Stirring: The stirring method is basically the same as other heat-insulating castables, but the temperature of the stirring water should be controlled below the normal temperature of 25°C.

(2) Construction: When pouring Ma'anshan alumina hollow ball castables, manual vibration should be used. If a vibrator is used, it should vibrate slightly, and be careful not to vibrate for too long.

(3) Curing: Spraying is used for curing, and the curing period is not less than 3 days.

Ceramic fiber castables are made of ceramic fiber cotton as aggregate, adding various fillers, binders, additives and other materials. Low thermal conductivity, low heat capacity, thermal shock resistance, pressure resistance and bending resistance, so it has excellent wind erosion resistance, wear resistance, impact resistance and load-bearing capacity. The advantage is that it has good construction performance and mechanical properties, and is especially suitable for furnace walls with complex shapes. It is easy to construct, and the integrity of the furnace wall is strong. The furnace wall can be demoulded 4 to 8 hours after pouring, and has a certain hardness.

Applications include industrial kiln wall lining or high temperature industrial kiln back lining heat insulation, integral casting of ladle baking cover, high temperature pipeline wall lining, furnace door, fire viewing hole, burner brick and other common and special-shaped prefabricated parts, etc. . Similar products of Jinshi aluminum silicate fiber include: aluminum silicate fiber loose cotton (gap filling), aluminum silicate fiber rope (insulation sealing), aluminum silicate fiber paper (sealing gasket, insulation), aluminum silicate fiber blanket, silicon Alumina fiber modules, aluminum silicate fiber castables, airgel insulation blankets, nano-insulation panels, etc., while providing industrial insulation solutions, a complete set of insulation materials, construction services, etc.