METHOD FOR MANUFACTURING CERAMIC FILTER

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a ceramic filter having low pressure loss, high dust collecting efficiency and practically sufficient strength and durability. SOLUTION: The ceramic filter is manufactured by depositing a composition containing aggregate particles and binder particles on the surface of a porous base material and heat treating the composition to form one or more layers of porous surface layers. In this method, >=70 mass% of the aggregate particles have the particle diameter in the range from 70 to 130% of the average diameter of the aggregate particles. The average particle diameter is larger than the average pore diameter of the porous base material and less than double of it. The condition for the above heat treatment is >=900 deg.C.