| 摘要 |
<p>Method for manufacturing rings or discs having a blade or vane rim from a powder which is received in a mold cavity formed by a gas-tight casing (10, 11, 12) and is isostatically hot pressed in the casing to form a monolithic body. A core (13) of hexagonal boron nitride or graphite having through apertures (14) corresponding to the profile of the individual blades or vanes, is located in the mold cavity said apertures being filled with powder to form the blades or vanes as an integrated portion of the monolithic body obtained by the isostatic hot pressing.</p> |
