In MAY,07TH.2022, HOT SALES,21 tons Fire clay brick +30roll Ceramic Fiber Blanket packed for delivering to customer in Philippines.
Clay brick is made of clay clinker as aggregate and refractory clay (soft clay or semi-soft clay) as binder to make refractory with Al2O content of 30%~48%. It is a refractory product with a wide range of uses and the largest output.
The properties of clay products fluctuate in a wide range, which is due to the differences in the chemical composition and production process of the products. Clay products generally have the following properties:
(1) Chemical and mineral composition. The content of Al₂O₃ is 30%~48%, the content of SiO2 is 50%~65% and a small amount of alkali metal and alkaline earth metal oxides TiO2, Fe2O3, etc. The mineral composition is generally: mullite, cristobalite and quartz, glass phase.
(2) The refractoriness is generally 1580~1750C, which increases with the increase of Al2O3/SiO2. When the content of low-melt impurities is large, the refractoriness of the product decreases significantly.
(3) The softening temperature under load is about 1250~1450C, and its variation range is wide. The initial deformation temperature is low, about 200~250C different from the 40% deformation temperature.
(4) The coefficient of linear expansion is low, and its thermal conductivity is also low.
(5) Good thermal shock resistance and large fluctuation range. 1100C water cooling cycle is generally more than 10 times. This is related to the low coefficient of linear expansion of clay products, the insignificant effect of crystal transformation and the plasticity at high temperature.
(6) Chemical erosion resistance: Because it is weakly acidic, fire caly brick has strong resistance to acid slag erosion, but weak resistance to alkaline material erosion.
Ceramic fiber blanket’s main component is alumina, and ceramic fiber insulators is suitable for lining insulation of various industrial kilns. Such as bogie furnace, annealing furnace, coke oven, galvanizing pot, tunnel kiln, power plant, aluminum electrolytic cell, regenerative incinerator, beam heating Furnace, push-steel heating furnace, torch, ladle, ladle, continuous reforming furnace, holding pit, etc.
