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Verfahren zur Herstellung von keramischen oder pulvermetallurgischen Bauteilen

Ceramic or powder metallurgical component production - by casting thermoplastic slip in evacuated mould to obtain prototype of complicated shape.
 
: Lenk, R.

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Frontpage ()

DE 1997-19703177 A: 19970129
DE 1997-19703177 A: 19970129
EP 1998-908002 AW: 19980128
WO 1998-EP450 A: 19980128
EP 1998-908002 A: 19980128
EP 958260 B1: 20011121
DE 19703177 C2: 20030130
B28B0001
C04B0035
German
Patent, Electronic Publication
Fraunhofer IKTS ()

Abstract
A process for producing ceramic or powder metallurgical components involves: (a) forming a thermoplastic slip of 0.05-4.0 Pa. sec. viscosity from ceramic or powder metallurgical materials and one or more thermoplastic binders; (b) introducing the slip at 40-180 deg. C into a mould which is evacuated to 5 Pa to 0.09 MPa before, during and/or after slip introduction; and (c) heat treating the resulting consolidated green body. ADVANTAGE - The process allows efficient individual or small series production of complicated shaped components as prototypes, using very simple and inexpensive reusable moulds and without the need for expensive shaping or machining operations.

: http://publica.fraunhofer.de/documents/PX-39310.html