Patent ID: 6808010
Filing Date: 2004-10-26
Classification: B22C

Abstract:
A method of treating a ceramic core after molding and before firing for use in casting molten metallic material, comprising placing an unfired ceramic core having a molded core shape and having an organic binder on at least one setter, placing said at least one setter and said unfired ceramic core thereon on a conveyor that conveys said at least one setter and said unfired core through a heating oven, conveying said at least one setter and said unfired ceramic core through the heating oven to heat said at least one setter and said unfired ceramic core to an elevated temperature at or above a softening temperature of said binder effective to soften said binder to reduce distortion of said unfired ceramic core, and removing said at least one setter and said unfired ceramic core having softened organic binder from said oven to cool to ambient temperature.