Patent ID: 7335323
Filing Date: 2008-02-26
Classification: C04B,Y10T

Abstract:
1. A method for producing a cordierite ceramic body, comprising: a mixing step of mixing a ceramic starting material comprising a ceramic virgin starting material and reclaimed powder and a binder to produce a mixed starting material, a humidifying step of adding a humidifying liquid to the mixed starting material to produce a humidified starting material, a molding step of kneading and extruding the humidified starting material to mold a ceramic molded article, a drying step of drying the ceramic molded article, a cutting step of cutting off an unnecessary part of the ceramic molded article after drying and thereby machining the ceramic molded article into a predetermined length, and a calcining step of calcining the ceramic molded article having the predetermined length to produce a ceramic calcined body, wherein the method further comprises a reclaiming step of crushing to a powder the unnecessary part generated in the cutting step and then classifying the crushed powder to remove particles having a particle size less than 1 mm to produce a reclaimed powder composed of particles having a size range of 1 mm to 5 mm, and the reclaimed powder is used at least as a part of the ceramic starting material in the mixing step.