Verfahren zum Herstellen von Gegenständen mit einem Hohlraum durch Pressen.

摘要

Method of making articles, in particular from ceramic, having a cavity by pressing closed covers (1). …The core (2) used for delimiting the cavity and avoiding subsequent machining is initially more voluminous than the desired cavity and has a sufficient ductility for it to be partially extruded during the pressing. This prevents the often excessive mechanical stresses which can burst the densified article when the cover (1) is removed. …Application in particular for the isostatic hot pressing of fragile materials. ……