ALLIAGES DE COBALT POUR LA PREPARATION DE PROTHESES DENTAIRES
A)ALLIAGES DE COBALT POUR LA PREPARATION DE PROTHESES DENTAIRES.B)ALLIAGES CONSTITUES DE 42 A 69,5 EN POIDS DE COBALT, 10 A 35 EN POIDS DE CHROME ET 5 A 25 EN POIDS DE TUNGSTENE, CARACTERISES EN CE QU'ILS CONTIENNENT EN OUTRE 2 A 10 EN POIDS DE FER, 1 A 4 EN POIDS D'ALUMINIUM, 0 A 5 EN POI...
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Format | Patent |
Language | French |
Published |
30.11.1984
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Abstract | A)ALLIAGES DE COBALT POUR LA PREPARATION DE PROTHESES DENTAIRES.B)ALLIAGES CONSTITUES DE 42 A 69,5 EN POIDS DE COBALT, 10 A 35 EN POIDS DE CHROME ET 5 A 25 EN POIDS DE TUNGSTENE, CARACTERISES EN CE QU'ILS CONTIENNENT EN OUTRE 2 A 10 EN POIDS DE FER, 1 A 4 EN POIDS D'ALUMINIUM, 0 A 5 EN POIDS DE RHENIUM ET 0 A 2 EN POIDS DE TITANE, LA SOMME DES TENEURS EN CHROME, TUNGSTENE ET RHENIUM SE MONTANT AU MOINS A 27,5 EN POIDS ET AU PLUS A 45 EN POIDS, ET LA SOMME DES TENEURS EN TITANE ET ALUMINIUM SE MONTANT AU PLUS A 5 EN POIDS.C)L'INVENTION S'APPLIQUE A DES ALLIAGES POUR DES PROTHESES DENTAIRES PLUS RESISTANTES, AVEC UNE DILATATION THERMIQUE TRES FAIBLE.
As replacements for noble metal containing alloys fused to porcelain in dental prosthetics there are needed alloys based on cobalt-chromium-tungsten which have a hardness of less than 300 (HV 5), can be veneered faced with known dental ceramics without problems and can be worked without problem with the customary working techniques. Such alloys contain in addition to 42-69.5 weight % cobalt, 10-35 weight % chromium, and 5-25 weight % tungsten, 2-10 weight % iron, 1-4 weight % aluminum, 0-5 weight % rhenium, and 0-2 weight % titanium, whereby the sum of the content oc chromium, tungsten, and rhenium is between 27.5 and 45 weight % and the sum of aluminum and titanium is below 5 weight %. |
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AbstractList | A)ALLIAGES DE COBALT POUR LA PREPARATION DE PROTHESES DENTAIRES.B)ALLIAGES CONSTITUES DE 42 A 69,5 EN POIDS DE COBALT, 10 A 35 EN POIDS DE CHROME ET 5 A 25 EN POIDS DE TUNGSTENE, CARACTERISES EN CE QU'ILS CONTIENNENT EN OUTRE 2 A 10 EN POIDS DE FER, 1 A 4 EN POIDS D'ALUMINIUM, 0 A 5 EN POIDS DE RHENIUM ET 0 A 2 EN POIDS DE TITANE, LA SOMME DES TENEURS EN CHROME, TUNGSTENE ET RHENIUM SE MONTANT AU MOINS A 27,5 EN POIDS ET AU PLUS A 45 EN POIDS, ET LA SOMME DES TENEURS EN TITANE ET ALUMINIUM SE MONTANT AU PLUS A 5 EN POIDS.C)L'INVENTION S'APPLIQUE A DES ALLIAGES POUR DES PROTHESES DENTAIRES PLUS RESISTANTES, AVEC UNE DILATATION THERMIQUE TRES FAIBLE.
As replacements for noble metal containing alloys fused to porcelain in dental prosthetics there are needed alloys based on cobalt-chromium-tungsten which have a hardness of less than 300 (HV 5), can be veneered faced with known dental ceramics without problems and can be worked without problem with the customary working techniques. Such alloys contain in addition to 42-69.5 weight % cobalt, 10-35 weight % chromium, and 5-25 weight % tungsten, 2-10 weight % iron, 1-4 weight % aluminum, 0-5 weight % rhenium, and 0-2 weight % titanium, whereby the sum of the content oc chromium, tungsten, and rhenium is between 27.5 and 45 weight % and the sum of aluminum and titanium is below 5 weight %. |
Author | JURGEN HAUSSELT, DIETER KAUFMANN ET UDO ENGLISCH |
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Notes | Application Number: FR19840006467 |
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Snippet | A)ALLIAGES DE COBALT POUR LA PREPARATION DE PROTHESES DENTAIRES.B)ALLIAGES CONSTITUES DE 42 A 69,5 EN POIDS DE COBALT, 10 A 35 EN POIDS DE CHROME ET 5 A 25 EN... |
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SubjectTerms | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES TREATMENT OF ALLOYS OR NON-FERROUS METALS |
Title | ALLIAGES DE COBALT POUR LA PREPARATION DE PROTHESES DENTAIRES |
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