Method for manufacturing a blank and pre-sintered blank

The method involves debindering a green part by controlled heating of the green part, which is present at debindering start temperature, at another debindering start temperature with heating rate such that damage of the green part is stopped. The debindered green part is presintered at a presinter e...

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Bibliographic Details
Main Authors Hock, Elmar, Steinke, Rudi, Völkl, Lothar, Wissel, Irmgard, Hachenberg, Jörg, Zellmann, Gerhard, Fecher, Stefan, Vollmann, Markus
Format Patent
LanguageEnglish
French
German
Published 30.05.2018
Subjects
APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
DENTISTRY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Summary:The method involves debindering a green part by controlled heating of the green part, which is present at debindering start temperature, at another debindering start temperature with heating rate such that damage of the green part is stopped. The debindered green part is presintered at a presinter end temperature with another heating rate. The presintered green part is cooled with cooling rate, where the presintered green part forming a blank exhibits surface porosity ranging between 16 and 22 percent. The blank is processed and hard-sintered for forming a mold. An independent claim is also included for a green part for manufacturing a mold e.g. dental prosthesis and dental prosthesis part.
Bibliography:Application Number: EP20110188041