A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
A61C 5/10 (2006.01) A61C 13/20 (2006.01)
Patent
CA 2339654
A dental product is produced from material in powder form. In a first manufacturing stage, the product is given a shape which is larger than its final shape, and in further manufacturing stages the product is subjected to material shrinkage/sintering and working in order to obtain the final shape. Metal powder is applied to the mould tool, and the mould tool with the applied metal powder is placed in pressure-generating equipment (6) where the powder (1') applied to the mould tool (2d) is subjected to compaction pressure (F) which compacts the powder so that at least an 80 percent basic density is obtained in the material. The compacted material is then machined and, after machining, it is removed from the mould tool. The sintering stage is then carried out so that the final shape is obtained.
La présente invention concerne un produit dentaire fabriqué à partir d'un matériau en poudre. Lors de la première étape de fabrication, on donne à ce produit une forme plus grande que sa forme finale, puis on le soumet lors des étapes suivantes à un retrait/frittage et à un traitement par matériau pour obtenir la forme finale. Une poudre métallique est appliquée sur l'outil de moulage qui est ensuite placé dans un appareil de génération de pression (6), dans lequel la poudre (1') appliquée sur l'outil de moulage (2d) est soumise à une pression de compactage (F) qui compacte la poudre pour obtenir une densité basale d'au moins 80 % dans le matériau. Le matériau compacté est ensuite usiné, puis retiré de l'outil de moulage. Enfin, on procède à l'étape de frittage pour obtenir la forme finale du produit.
Andersson Matts
Carlstrom Elis
Eriksson Mikael
Fetherstonhaugh & Co.
Nobel Biocare Ab
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