| 摘要 |
PURPOSE:To produce thick and large ceramic concrete using an extremely small amount of a molten material by centrifugally molding a mixture of a raw material and water to transfer a component with high specific gravity to the outer peripheral surface of the molded product and ageing and drying the molded product before heat-treating the same. CONSTITUTION:A raw material such as hydraulic cement, heat-resistant aggregate, a wollastonite fiber or a molten material is mixed with water to obtain a mixture. A cylindrical steel molding frame 1 is horizontally arranged and a reinforcing rod cage 4 is put in the molding frame 1 and a predetermined amount of the mixture is equally received in the hollow chamber 5 of the molding frame 1 over the total length thereof and the molding frame 1 is closed to be placed on a pair of the wheels 2, 2 of the centrifuge supported on supports 3 and the wheels 2, 2 are rotated by a motor to perform centrifugal molding. At the time of the centrifugal molding of the mixture, the component with high specific gravity in the mixture is transferred to the outer peripheral surface and this molded product is aged, dried and heat-treated to obtain ceramic concrete. |
