| 摘要 |
PURPOSE:To perform perfect ageing by a method wherein a stock slurry is injected in a retaining mold in such a state that reinforcing rods are vertically suspended within said mold to be harden to form a raw cake which is, in turn, held in a horizontal state to be horizontally cut and, thereafter, the cut raw cakes are again returned to a vertical state to be cured. CONSTITUTION:A plurality of reinforcing rods are vertically suspended by a setting frame having holes provided to the predetermined places thereof and setting rods to be introduced into a retaining mold and a stock slurry compounded in a predetermined ratio is injected in the retaining mold to be cured up to a semi-plastic state and, after the setting frame and the setting rods are removed, the retaining mold is tilted by 90 deg. so that the surfaces of the reinforcing rods become horizontal to be detached. The retaining mold is provided with a plurality of steel wires under tension so that the angle of the plane connecting steel wires crossing a horizontal plane becomes smaller than 90 deg. to be reciprocally moved in a horizontal direction and, in this state, the formed raw cake is pushed in the mold to be horizontally cut and the retaining mold is again mounted to be returned so that the surfaces of the reinforcing rods become vertical to the horizontal plane to be introduced into an autoclave and the cut raw cakes are cured by steam to cleanly and perfectly age the surfaces of the cut cakes. |
