CERAMIC COATING METHOD FOR EARTHENWARE COOKING CONTAINER AND EARTHENWARE COOKING CONTAINER

摘要

PPROBLEM TO BE SOLVED: To increase the strength of a cooking container and to enable long hours of use of the cooking container by increasing the adhesion strength of a ceramic coating film applied to the inner surface of the cooking container. PSOLUTION: The cooking container 3 is made of normal earthenware by kneading a certain amount of clay, forming it into the shape of the cooking container 3, drying it in the shade, for example, biscuit-firing it once, coating the surface of the cooking container 3 with glaze 3' and firing it twice. Garnet powder 2' of 60-120 nm is injected by a high-pressure injector 2 to the inner central bottom and the inside peripheral surface of the earthenware cooking container 3 for making cracks or scratches 4 on its surface. After that, its surface is coated by injecting ceramic containing silica (SiOSB2/SB), alumina oxide (AlSB2/SBOSB3/SB) and titanium oxide (TiOSB2/SB) as main components. PCOPYRIGHT: (C)2005,JPO&NCIPI