EP2818567B1 - Alliage en or blanc, notamment pour l'utilisation dans le cadre d'un procédé de béton coulé - Google Patents
Alliage en or blanc, notamment pour l'utilisation dans le cadre d'un procédé de béton coulé Download PDFInfo
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- EP2818567B1 EP2818567B1 EP14002176.7A EP14002176A EP2818567B1 EP 2818567 B1 EP2818567 B1 EP 2818567B1 EP 14002176 A EP14002176 A EP 14002176A EP 2818567 B1 EP2818567 B1 EP 2818567B1
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- Prior art keywords
- gold alloy
- weight
- palladium
- platinum
- alloy
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- 229910045601 alloy Inorganic materials 0.000 title claims description 89
- 239000000956 alloy Substances 0.000 title claims description 89
- 239000010938 white gold Substances 0.000 title claims description 51
- 229910000832 white gold Inorganic materials 0.000 title claims description 51
- 239000004575 stone Substances 0.000 title description 5
- 238000005266 casting Methods 0.000 title description 4
- 238000000034 method Methods 0.000 title description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 96
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 90
- 229910052763 palladium Inorganic materials 0.000 claims description 48
- 229910052697 platinum Inorganic materials 0.000 claims description 45
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 37
- 239000010931 gold Substances 0.000 claims description 37
- 229910052737 gold Inorganic materials 0.000 claims description 37
- 229910052709 silver Inorganic materials 0.000 claims description 31
- 239000004332 silver Substances 0.000 claims description 31
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 28
- 229910052725 zinc Inorganic materials 0.000 claims description 28
- 239000011701 zinc Substances 0.000 claims description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 23
- 229910052802 copper Inorganic materials 0.000 claims description 23
- 239000010949 copper Substances 0.000 claims description 23
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 16
- 229910052733 gallium Inorganic materials 0.000 claims description 16
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 15
- 229910052718 tin Inorganic materials 0.000 claims description 15
- 239000012535 impurity Substances 0.000 claims description 11
- 229910052741 iridium Inorganic materials 0.000 claims description 7
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 7
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052707 ruthenium Inorganic materials 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 23
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 16
- 229910001020 Au alloy Inorganic materials 0.000 description 9
- 239000003353 gold alloy Substances 0.000 description 9
- 229910052759 nickel Inorganic materials 0.000 description 8
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000003564 dental alloy Substances 0.000 description 4
- 229910052738 indium Inorganic materials 0.000 description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 238000004061 bleaching Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052729 chemical element Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010437 gem Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000010930 yellow gold Substances 0.000 description 2
- 229910001097 yellow gold Inorganic materials 0.000 description 2
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/02—Alloys based on gold
Definitions
- the invention relates to a white gold alloy suitable in particular for use in a cast-on-cast method, which comprises between 56 and 60% by weight of gold, 25 to 35% by weight of silver, 5 to 10% by weight of zinc and 0.2 to 5 wt .-% palladium.
- Such a white gold alloy is known. It contains palladium as a whitening agent. This causes the known gold alloy to have an approximately white color.
- the known white gold alloy in a Stone casting process, ie a casting process for pieces of jewelry, in which the gems, usually diamonds, are included in the jewelry to use, the lowest possible melting temperature of the alloy is necessary, otherwise there is a risk that the miteingegossenen stones during casting to be damaged.
- the known gold alloy should have a white color as possible, which requires a higher content of bleaching elements such as nickel or palladium.
- a high proportion of palladium counteracts a low melting interval, since palladium shifts the melting interval of an alloy to higher temperatures than, for. As nickel.
- the color of a gold alloy and thus also a white gold alloy is characterized by the so-called yellowness index. This goes back to an initiative of the Manufacturing Jewels and Suppliers of America and the World Gold Council. It has developed a color standardization for white gold, which z. B. in the Journal "Gold Bulletin 2005", June 2005, Issue 38/2, pages 55-67 is described. As a white gold alloy is then referred to a gold alloy, which has a yellowness index of less than 32.
- a dental alloy which has the following composition: 40 to 80% by weight of gold; 15 to 50% by weight of silver; Palladium and platinum together in an amount of from 0 to 20% by weight, in the case that palladium and platinum are present simultaneously, one of these elements is present in a proportion of not more than 4% by weight; a total of 0 to 5 wt .-% of one or more elements from a group containing tin, zinc, indium, gallium, germanium, aluminum, silicon and Bohr; total 0 to 5% by weight of one or more elements from a group containing tantalum, titanium and rhenium; a total of 0 to 5 wt .-% of one or more elements from a group containing rhodium, iridium and ruthenium; a total of 0 to 5 wt .-% of one or more elements from a group containing molybdenum, niobium, tungsten,
- the dental alloy described in the aforementioned document is said to have a yellow-gold color even at a level of 50% by weight of gold. So it has a yellowness index, which is well above a value of 32 and, typically has a Yellowness value between 40 and 60, possesses.
- the dental gold solders known from this publication should be used for brazing copper-free dental alloys, which in turn have a yellow-golden color. Consequently, the known copper and cadmium-free dental gold solders therefore have a yellowness index which is well above 32.
- the JP 561-67 731 A describes a dental alloy powder for a kneading and filling material, which 0 to 20 wt .-% palladium, 0 to 5 wt .-% tin, 0 to 10 wt .-% indium, 0 to 10 wt .-% platinum, 0 to 40 wt .-% silver, 0 to 30 wt .-% copper and the remainder gold.
- Such an alloy in turn has a yellow-gold color, so a yellowness index of well over 32.
- the US 4,008,080 A describes a copper-free dental gold alloy, which 25 to 40 wt .-% silver, 40 to 60 wt .-% gold, 5 to 20 wt .-% palladium, 0.05 to 0.5 wt .-% iridium, 0 to 6 wt % Indium, 0 to 6 wt% tin, and 0 to 2 Wt .-% zinc, wherein at least 2% of the aforementioned non-noble metal are present.
- This gold alloy is no white gold alloy.
- the EP 0 225 483 describes a dental gold alloy for removable bridges. It contains 50 to 61% by weight of gold, 20 to 35% by weight of silver, 10 to 50% by weight of palladium, 0 to 2% by weight of platinum, 0 to 0.2% by weight of iridium and / or Rotinium and 3 to 5 wt .-% zinc. Again, this dental gold alloy has a golden yellow color, so represents no white gold alloy.
- a white gold alloy of the type mentioned in such a way that the alloy according to the invention is nickel-free or substantially nickel-free and has good processability, in particular due to their melting interval is suitable for a cast-stone process.
- the white gold alloy contains 0.05 to 5 wt .-% of platinum, and that the proportion of palladium and platinum in total not more than 5 wt .-% is that copper in a proportion of between more is present as 0 wt .-% and 2 wt .-%, wherein up to 2 wt .-% of the silver are replaced by the same amount of copper, that preferably up to 1 wt .-% gallium are present, preferably to 2% by weight of the zinc is replaced by the same amount of tin, and that preferably the white gold alloy contains at least one grain of fine iridium and / or ruthenium, this preferably added fraction of the grain or grains containing the corresponding amount of palladium and / or or platinum, with the weight proportions of the abovementioned alloy components - apart from customary admixtures and impurities - supplementing to 100 wt .-%, and that the white gold alloy has a yellowness index of less than
- a nickel-free white gold alloy is created in an advantageous manner - apart from impurities or unavoidable admixtures, which is particularly suitable for a cast-stone method and in terms of their mechanical strength, their chemical resistance, and their polishability at the jewelery made from such an alloy meets the requirements:
- the alloy of the invention has a hardness between 120 to 150 HV, a yellowness index of ⁇ 32, a melting interval of ⁇ 900 ° and a sufficient oxidation and corrosion resistance.
- An advantageous development of the invention provides that up to 2% of the zinc present in the alloy according to the invention is replaced by the same proportion of tin. Such a measure has the advantage that the melting temperature is further reduced.
- a first embodiment provides that the white gold alloy described contains between 56 and 60% by weight gold, preferably 58-59% by weight gold, in particular 58.5% by weight gold, 25-35% by weight silver , preferably 30 wt .-% silver, 5-10 wt .-% zinc, 0.2 to 5 wt .-% palladium and 0.05-5 wt .-% platinum, wherein the aforementioned alloying components - of conventional impurities and unavoidable admixtures - supplement to 100 wt .-%. The proportion of palladium and platinum is in total at most up to 5 wt .-%.
- the described alloy is obtained by replacing 0.05-5% by weight of palladium with the corresponding amount of platinum in a known alloy containing the abovementioned alloy components gold, silver, zinc and palladium in the abovementioned proportions.
- the described alloy has a yellowness index between 26 and 30, well below the accepted limit of 32, where an alloy is no longer referred to as white gold.
- the white gold alloy according to the first embodiment thus contains 56 to 60 wt .-% gold, preferably 58 to 59 wt .-% gold, in particular 58.5 wt .-% gold, in total from 25 to 35 wt .-% of silver and Copper, preferably in total 30 wt .-% silver and copper, wherein copper is present in a proportion of more than 0 and up to 2 wt .-%, 5 wt .-% zinc, 02, to 5 wt .-% palladium and 0.05 to 5 wt .-% of platinum, wherein the aforementioned alloying components - apart from conventional impurities and unavoidable admixtures - add up to 100 wt .-% and the proportion of palladium and platinum in
- a second embodiment provides that the white gold alloy 58.5 wt .-% gold, 30.5 wt .-% silver, 6 wt .-% zinc, 1 wt .-% gallium, 1 wt .-% tin and 3 wt .-% platinum, wherein the above-mentioned components of the alloy - apart from conventional impurities and admixtures - add up to 100 wt .-%.
- Such an alloy has an L * value of 91.47 and an a * value of-1.51 and a b * value of 14.45. It has a yellowness index of about 26.5. This is thus well below the value of 32, in which a gold alloy is referred to as white.
- an alloy in which the above substitution of 3% by weight of palladium has not been made by 3% by weight of platinum ie an alloy containing 58.5% by weight of gold, 30.5% by weight, has Silver, 6% by weight of zinc, 1% by weight of gallium, 1% by weight of tin and 3% by weight of palladium, has a yellowness index of 30.9, an L * value of about 91, an a * value of about -1.3 and a b * value of about 16.8.
- the replacement of 3% by weight of palladium by 3% by weight of platinum thus leads to a significant reduction in the yellowness index from about 30.9 to about 26.5.
- the described white gold alloy, in which 3% by weight of palladium has been replaced by 3% by weight of platinum is thus significantly lighter than the latter.
- a third embodiment of the invention provides that the white gold alloy 58.5 wt .-% gold, 27.0 wt .-% silver, 1.5 wt .-% palladium, 1.5 wt .-% copper, 7 %
- zinc 0.5% by weight of gallium, 1% by weight of tin and 3% by weight of platinum, with the abovementioned constituents of the alloy in turn, apart from customary impurities and admixtures 100 wt .-% complete.
- the color parameters L *, a * and b * are 91.02, -1.09, 15.16.
- the yellowness index is again below the value of 32 at about 28.2.
- 3% by weight of palladium was replaced by 3% by weight of platinum.
- a fourth embodiment of the invention provides that the white gold alloy 58.5 wt .-% gold, 24.7 wt .-% silver, 3 wt .-% palladium, 1.5 wt .-% copper, 8.3 %
- zinc 1% by weight of gallium and 3% by weight of platinum, with the abovementioned constituents of the alloy, apart from customary impurities and admixtures, being added to 100% by weight.
- the color parameters L *, a * and b * are 90.9, -0.96, 15.26.
- the yellowness index is again below the yellowness index of 32, which is regarded as the limit for a white gold alloy.
- a fifth embodiment of the invention provides that the white gold alloy 58.5 wt .-% gold, 26.5 wt .-% silver, 3 wt .-% palladium, 1.5 wt .-% copper, 7.5 %
- zinc 1% by weight of gallium and 2% by weight of platinum, with the abovementioned constituents of the alloy, apart from conventional impurities and admixtures, being added to 100% by weight.
- the color parameters L *, a * and b * are 90.98, -1.02, 15.38.
- the yellowness index is again below the value of 32 at 28.71. In the alloy described above, 2% by weight of platinum was replaced.
- a sixth embodiment of the invention provides that the white gold alloy 58.5 wt .-% gold, 28.5 wt .-% silver, 2 wt .-% palladium, 7 wt .-% zinc, 1 wt .-% Gallium and 3 wt .-% platinum, wherein the above-mentioned components of the alloy - apart from conventional impurities and admixtures - add up to 100 wt .-%.
- the color parameters L *, a * and b * are 90.36, -1.11, 16.08.
- the yellowness index is again below the value of 32 at 29.95.
- the proportions of the corresponding alloy components indicated in the second to sixth embodiments are only exemplary examples which are not intended to limit the generality of the foregoing. It is essential that the above-described alloys are obtained by replacing 0.05-5% by weight of palladium with the same amount of platinum with otherwise identical alloying parameters.
- the described alloys one or more Kornfeiner, such as. As iridium or ruthenium, are added, wherein the added proportions of the grain or the grain replace the corresponding proportion of palladium and / or platinum, so that then the aforementioned alloy components and the proportion of grain refiner (s) - apart from conventional admixtures and impurities - add up to 100% by weight.
- Kornfeiner such as. As iridium or ruthenium
- the measures described form a white gold alloy which has a yellowness index which is below the generally accepted index value of 32, in which a white gold alloy is no longer designated as such .
- the described white gold alloy is characterized by the fact that - what was not to be expected - in such a constellation platinum has a better bleaching effect than palladium. Since platinum has a much higher atomic weight than palladium and therefore, with the same proportion by weight, much fewer atoms become active in the respective alloy, this is surprising. In addition, it has unexpectedly been found that platinum improves the hardness of the described alloys.
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- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Claims (8)
- Alliage en or blanc, qui contient 56 à 60 % en poids d'or, 25 à 35 % en poids d'argent, 5 à 10 % en poids de zinc et 0,2 à 5 % en poids de palladium, caractérisé en ce que l'alliage en or blanc contient 0,05 à 5 % en poids de platine, et en ce que la proportion de palladium et de platine est égale au total aux maximum à 5 % en poids, en ce que du cuivre est prévent en une proportion comprise entre plus de 0 % en poids et 2 % en poids, sachant que jusqu'à 2 % en poids d'argent est remplacé par la même quantité de cuivre, en ce que de préférence jusqu'à 1 % en poids de gallium est présent, en ce que de préférence jusqu'à 2 % en poids de zinc est remplacé par la même quantité d'étain, et en ce que de préférence l'alliage en or blanc contient au moins un affineur de grain, sachant que ladite fraction de préférence ajoutée du ou des affineurs de grain, l'iridium et/ou le ruthénium, remplace la fraction correspondante de palladium et/ou de platine, sachant que les proportions en poids des composants se complètent jusqu'à parvenir à 100 % du poids - abstraction faite des mélanges et des impuretés classiques -, et en ce que l'alliage en or blanc possède un indice de jaunissement inférieur à 32.
- Alliage en or blanc selon à revendication 1, caractérisé en ce que l'alliage en or blanc contient 58 à 59 % en poids d'or, en particulier 58,5 % en poids d'or.
- Alliage en or blanc selon l'une quelconque des revendications précédentes, caractérisé en ce que l'alliage en or blanc contient 30 % en poids d'argent.
- Alliage en or blanc selon l'une quelconque des revendications précédentes, caractérisé en ce que l'alliage en or blanc contient 58,5 % en poids d'or, 30,5 % en poids d'argent, 6 % en poids de zinc, 1 % en poids de gallium, 1 % en poids d'étain et 3 % en poids de platine.
- Alliage en or blanc selon l'une quelconque des revendications précédentes, caractérisé en ce que l'alliage en or blanc contient 58,5 % en poids d'or, 27 % en poids d'argent, 1,5 % en poids de palladium, 1,5 % en poids de cuivre, 7 % en poids de zinc, 0,5 % en poids de gallium, 1 % en poids d'étain et 3 % en poids de platine.
- Alliage en or blanc selon l'une quelconque des revendications précédentes, caractérisé en ce que l'alliage en or blanc contaient 58,5 % en poids d'or, 24,7 % en poids d'argent, 3 % en poids de palladium, 1,5 % en poids de cuivre, 8,3 % en poids de zinc, 1 % en poids de gallium et 3 % en poids de platine.
- Alliage en or blanc selon l'une quelconque des revendications précédentes, caractérisé en ce que l'alliage en or blanc contient 58,5 % en poids d'or, 26,5 % en poids d'argent, 3 % en poids de palladium, 1,5 % en poids de cuivre, 7,5 % en poids de zinc, 1 % en poids de gallium et 2 % en poids de platine.
- Alliage en or blanc selon l'une quelconque des revendications précédentes, caractérisé en ce que l'alliage en or blanc contient 58,5 % en poids d'or, 28,5 % en poids d'argent, 2 % en poids de palladium, 7 % en poids de zinc, 1 % en poids de gallium et 3 % en poids de platine.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013010700.8A DE102013010700B4 (de) | 2013-06-27 | 2013-06-27 | Weißgold-Legierung, insbesondere zur Verwendung für ein Steinguss-Verfahren |
DE202013005743.2U DE202013005743U1 (de) | 2013-06-27 | 2013-06-27 | Weißgold-Legierung, insbesondere zur Verwendung für ein Steinguss-Verfahren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2818567A1 EP2818567A1 (fr) | 2014-12-31 |
EP2818567B1 true EP2818567B1 (fr) | 2016-09-07 |
Family
ID=51022722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP14002176.7A Active EP2818567B1 (fr) | 2013-06-27 | 2014-06-25 | Alliage en or blanc, notamment pour l'utilisation dans le cadre d'un procédé de béton coulé |
Country Status (1)
Country | Link |
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EP (1) | EP2818567B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202015006386U1 (de) | 2015-09-16 | 2016-12-19 | C. Hafner Gmbh + Co. Kg | Weißgold-Legierung |
EP3144401B1 (fr) | 2015-09-16 | 2021-02-17 | C. Hafner GmbH + Co. KG | Alliage d'or blanc pour bijoux |
DE102015011788A1 (de) | 2015-09-16 | 2017-03-16 | C. Hafner Gmbh + Co. Kg | Weißgold-Legierung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2453799C3 (de) | 1974-11-13 | 1979-08-02 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Kupferfreie Dentalgoldlegierungen |
DE2638837C3 (de) * | 1976-08-28 | 1979-06-07 | W.C. Heraeus Gmbh, 6450 Hanau | Dentallot-Legierung auf Gold-Basis |
JPS6167731A (ja) | 1984-09-07 | 1986-04-07 | Tokuriki Honten Co Ltd | 歯科練成充填用合金粉末 |
EP0225483B1 (fr) | 1985-12-07 | 1990-01-24 | Degussa Aktiengesellschaft | Alliages dentaires à base d'or |
NL9001986A (nl) | 1990-09-10 | 1992-04-01 | Elephant Edelmetaal Bv | Dentaal porselein, werkwijze voor het vervaardigen van een tandheelkundige restauratie, dentaallegering. |
DE19719677C2 (de) * | 1996-09-18 | 2003-04-24 | Herbst Bremer Goldschlaegerei | Verwendung einer Edelmetall-Legierung im Dentalbereich |
DE19958800A1 (de) * | 1999-06-30 | 2001-01-04 | Wieland Edelmetalle | Weißgold-Schmucklegierung |
DE10008744A1 (de) * | 2000-02-24 | 2001-08-30 | Wieland Edelmetalle | Weißgold-Schmucklegierung |
JP4470658B2 (ja) * | 2004-09-03 | 2010-06-02 | 日本歯研工業株式会社 | 超低溶融性及び超低収縮性の特に歯科用に適する金合金 |
US9865330B2 (en) | 2010-11-04 | 2018-01-09 | Qualcomm Incorporated | Stable SRAM bitcell design utilizing independent gate FinFET |
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2014
- 2014-06-25 EP EP14002176.7A patent/EP2818567B1/fr active Active
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