Porous silicon carbide ceramic materials is the corundum sand, silicon carbide, cordierite raw materials as the main ingredient, such as after forming and special preparation of high temperature sintering process. Has the following features:
(1) high porosity. The characteristic of the silicon carbide porous ceramic is more uniform and controllable in the pores. Points of stomatal opening stomatal and closed stomata: opening stomatal filtration, absorption, adsorption, eliminate echo effect, while closed stomata to cut off heat, sound, and the liquid and solid particles.
(2) high strength. Porous ceramic materials in by metal oxide, silica, silicon carbide, etc by high temperature calcination, and the material itself has high strength, calcining process of raw material particle boundary is melting and bonding, formed the ceramics with high strength.
(3) the physical and chemical properties of stability. Porous silicon carbide ceramic materials to acid, alkali corrosion, and can withstand high temperature and high pressure, good clean condition, will not cause secondary pollution, is a function of green environmental protection material.
(4) high filtration precision, renewable performance is good. Used as filtration materials of porous ceramic material has a narrow pore size distribution and higher porosity and specific surface area, a good contact with the filtered and ceramic material, including suspended solids, colloid content and microbial pollution is intercepted in the filter medium surface or internal, filtering effect is good. Silicon carbide porous ceramic filter material over a period of time after use, backwash in gas or liquid, can restore the original filtering capabilities.