MANUFACTURING METHOD OF TRANSPARENT CERAMIC FILTER FOR ENVIRONMENTAL PURIFICATION

摘要

A manufacturing method of a light-transmitting ceramic filter for environmental purification is provided to manufacture a light-transmitting ceramic filter for environmental purification that has a light weight and is excellent in strength, porosity and light transmittance at a low cost by a simple process. A manufacturing method of a light-transmitting ceramic filter for environmental purification comprises the processes of: mixing water with a blended material containing 100 weight parts of a pulverized volcanic mineral, 30 to 60 weight parts of a strength adjusting agent and 5 to 40 weight parts of a binder to form a mixture in a slurry state; dipping a foamed article into the mixture, and pressing the foamed article; and drying and firing the pressed foamed article. The firing process is conducted by increasing a temperature of the pressed foamed article to a temperature range of 1100 to 1300 deg.C at a temperature rising rate of 5 to 20 deg.C/min. The blended material is formed by mixing the pulverized volcanic mineral, the binder and the strength adjusting agent, and pulverizing the mixture into a powder with an average particle size of 5 to 10 mum.