| 摘要 |
PURPOSE:To satisfactorily disperse an arbitrary amt. of relatively long fibers in refractories by mixing fireproof fibers with a liq. having specified viscosity in a specified ratio under shear, further mixing this mixture with refractory starting material, removing the liq. from the resulting mixture, drying this mixture, adding a binder and carrying out molding, drying and firing. CONSTITUTION:Fireproof fibers having 1-30mum average diameter and 0.01-100mm length are used by 0.1-80 pts.wt. per 100 pts.wt. refractory starting material. The fibers are uniformly dispersed in a liq. having <=0.1Pa.sec viscosity in >=100 volume ratio of the fibers to the liq. by mixing under shear, the refractory starting material is added and they are mixed to obtain a mixture. The liq. is then removed from the mixture, this mixture is dried, a binder is added and they are molded into a desired shape, dried and properly fired. |
