| 摘要 |
<p>The present invention provides a method for subjecting a powder molded material (2) to isostatic pressing by covering the powder molded material with a water-non-permeable rubber film (24), wherein the surface area of the rubber film is larger than the surface area of the powder molded material. In the method, the rubber film (24) can well follow a complicated shape (e.g. shape having notch(es), throughhole(s), dent(s) and bend(s), or cylindrical shape) of the powder molded material; the damage of the rubber film during isostatic pressing occurs hardly; and the removal of the rubber film after isostatic pressing is easy. <IMAGE></p> |
