BR112021011187A2 - Rose gold alloy, production method and use - Google Patents
Rose gold alloy, production method and use Download PDFInfo
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- BR112021011187A2 BR112021011187A2 BR112021011187-5A BR112021011187A BR112021011187A2 BR 112021011187 A2 BR112021011187 A2 BR 112021011187A2 BR 112021011187 A BR112021011187 A BR 112021011187A BR 112021011187 A2 BR112021011187 A2 BR 112021011187A2
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 27
- 239000000956 alloy Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000010939 rose gold Substances 0.000 title abstract description 8
- 229910001112 rose gold Inorganic materials 0.000 title abstract description 8
- 239000010931 gold Substances 0.000 claims abstract description 26
- 239000011701 zinc Substances 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 24
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052737 gold Inorganic materials 0.000 claims abstract description 17
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 229910052714 tellurium Inorganic materials 0.000 claims abstract description 15
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 22
- 229910001020 Au alloy Inorganic materials 0.000 claims description 19
- 239000003353 gold alloy Substances 0.000 claims description 19
- 238000009713 electroplating Methods 0.000 claims description 11
- 230000008021 deposition Effects 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 150000002739 metals Chemical class 0.000 claims description 9
- 229910052738 indium Inorganic materials 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000008139 complexing agent Substances 0.000 claims description 5
- 239000010985 leather Substances 0.000 claims description 5
- 239000000080 wetting agent Substances 0.000 claims description 5
- 229910052733 gallium Inorganic materials 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- OCUCCJIRFHNWBP-IYEMJOQQSA-L Copper gluconate Chemical class [Cu+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O OCUCCJIRFHNWBP-IYEMJOQQSA-L 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 150000001413 amino acids Chemical class 0.000 claims description 2
- 229910052785 arsenic Inorganic materials 0.000 claims description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 150000001735 carboxylic acids Chemical class 0.000 claims description 2
- 150000001860 citric acid derivatives Chemical class 0.000 claims description 2
- DOBRDRYODQBAMW-UHFFFAOYSA-N copper(i) cyanide Chemical compound [Cu+].N#[C-] DOBRDRYODQBAMW-UHFFFAOYSA-N 0.000 claims description 2
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 claims description 2
- 229940043264 dodecyl sulfate Drugs 0.000 claims description 2
- 229910052732 germanium Inorganic materials 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 150000003891 oxalate salts Chemical class 0.000 claims description 2
- 235000021317 phosphate Nutrition 0.000 claims description 2
- 150000003009 phosphonic acids Chemical class 0.000 claims description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 2
- 229920000768 polyamine Polymers 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052711 selenium Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 2
- 150000003892 tartrate salts Chemical class 0.000 claims description 2
- 229910052716 thallium Inorganic materials 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 150000003109 potassium Chemical class 0.000 claims 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims 1
- 150000003751 zinc Chemical class 0.000 claims 1
- 239000011230 binding agent Substances 0.000 abstract description 4
- 238000000151 deposition Methods 0.000 description 8
- 229910052793 cadmium Inorganic materials 0.000 description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052752 metalloid Inorganic materials 0.000 description 2
- 150000002738 metalloids Chemical class 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical class [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- -1 cadmium Chemical class 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 1
- 125000001453 quaternary ammonium group Chemical class 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000003466 welding Methods 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/62—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of gold
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
LIGA DE OURO ROSA, MÉTODO DE PRODUÇÃO E USO. Uma liga quaternária de ouro rosa contendo ouro, cobre e zinco e, como um agente aglutinante, telúrio com uma porcentagem expressa em peso sobre o peso total da liga compreendida entre 0,01% e 1%, e o banho galvânico usado para sua produção.ROSE GOLD ALLOY, PRODUCTION METHOD I JUST. A quaternary rose gold alloy containing gold, copper and zinc and, as a binding agent, tellurium with a percentage expressed in weight on the total weight of the alloy comprised between 0.01% and 1%, and the bath galvanic used for its production.
Description
[0001] A presente invenção se refere a uma liga de ouro rosa, um método de galvanoplastia que pode ser usado para obter a mesma, e seu uso para revestimento decorativo e para a produção de invólucros de autoproteção nos setores de roupas, joias, bijuterias, calçados e artigos de couro.[0001] The present invention relates to a rose gold alloy, an electroplating method that can be used to obtain the same, and its use for decorative coating and for the production of self-protective casings in the clothing, jewelry, costume jewelry sectors. , footwear and leather goods.
[0002] Como é conhecido, os métodos de galvanoplastia tornam possível a deposição de um ou mais metais em um objeto que é capaz de conduzir corrente elétrica, formando, assim, uma ou mais camadas de espessuras variadas.[0002] As is known, electroplating methods make it possible to deposit one or more metals on an object that is capable of conducting electric current, thus forming one or more layers of varying thicknesses.
[0003] Em mais detalhes, em algumas aplicações, o produto final que se deseja obter compreende tanto o próprio objeto, quanto a camada metálica cobrindo o primeiro. No entanto, em algumas vezes, a deposição é estendida de maneira apropriada ao longo do tempo até que uma camada seja obtida que, adicionalmente ao fato de possuir uma espessura considerável e sendo uma replicação exata do objeto (matriz) no qual foi depositada, é desacoplada do último no final do método. A camada constitui, portanto, uma forma de concha autoportante (com a matriz removida) e, em tal caso, como é conhecido, o método é referido como “eletrodeposição”. Da mesma forma, é também conhecido que tais banhos possuem a característica peculiar de deposição rápida e eficiente de uma camada com uma espessura uniforme, tanto nas partes que projetam quanto nos recessos e nos buracos, garantindo, assim, coberturas metálicas que são bastante brilhosas mas não são achatadas (o que, do contrário, tornaria detalhes pequenos indistinguíveis).[0003] In more detail, in some applications, the final product to be obtained comprises both the object itself and the metallic layer covering the first. However, sometimes the deposition is properly extended over time until a layer is obtained which, in addition to being of considerable thickness and being an exact replication of the object (matrix) on which it was deposited, is decoupled from the last one at the end of the method. The layer therefore constitutes a self-supporting shell shape (with the matrix removed) and in such a case, as is known, the method is referred to as “electrodeposition”. In the same way, it is also known that such baths have the peculiar characteristic of fast and efficient deposition of a layer with a uniform thickness, both in the projecting parts and in the recesses and holes, thus guaranteeing metallic coverings that are quite shiny but are not flattened (which would otherwise make small details indistinguishable).
[0004] No setor de ligas de ouro para galvanoplastia, a liga de ouro rosa é conhecida, a qual é atualmente identificada pela norma UNI EN ISO 8654:2018 pelo título “Jewelry – Colors of gold alloys – Definition, range of colors and designation” com código 4N-6N.[0004] In the sector of gold alloys for electroplating, the rose gold alloy is known, which is currently identified by the UNI EN ISO 8654:2018 standard by the title “Jewelry – Colors of gold alloys – Definition, range of colors and designation ” with code 4N-6N.
[0005] Tal liga, a qual pode ser usada para revestimento decorativo e/ou para eletrodeposição nos setores de roupas, joias, bijuterias, calçados e produtos de couro com um peso em quilates compreendido entre 9 e 22 quilates, compreende tipicamente cádmio e índio como agentes aglutinantes, em adição a ouro, cobre e zinco.[0005] This alloy, which can be used for decorative coating and/or electroplating in the clothing, jewelry, costume jewelry, footwear and leather products with a carat weight of between 9 and 22 carats, typically comprises cadmium and indium as binding agents, in addition to gold, copper and zinc.
[0006] A principal desvantagem dessa liga consiste no fato de que ela perde suas características de brilho, harmonização e soldabilidade devido ao fato de que a deposição não é perfeitamente uniforme quando o revestimento vai até espessuras de menos do que 100 micrometros.[0006] The main disadvantage of this alloy consists in the fact that it loses its characteristics of brightness, harmonization and weldability due to the fact that the deposition is not perfectly uniform when the coating goes to thicknesses of less than 100 micrometers.
[0007] Adicionalmente, mesmo para espessuras maiores do que aquelas citadas acima, uma liga contendo índio e cádmio possui um certo grau de toxicidade e a produção da liga por meio de galvanoplastia leva a deposições inconstantes, principalmente devido ao fato de que é bastante complicado de se manter a titulação constante para a mesma densidade de corrente aplicada.[0007] Additionally, even for thicknesses greater than those mentioned above, an alloy containing indium and cadmium has a certain degree of toxicity and the production of the alloy by means of electroplating leads to inconstant depositions, mainly due to the fact that it is quite complicated to keep the titration constant for the same applied current density.
[0008] De modo a superar o acima exposto, se faz necessário ter deposições de alta espessura com um aumento inevitável no custo da liga o qual é diretamente relacionado à quantidade de ouro contida na mesma.[0008] In order to overcome the above, it is necessary to have high thickness deposits with an inevitable increase in the cost of the alloy which is directly related to the amount of gold contained in it.
[0009] O propósito da presente invenção consiste em fornecer uma liga de ouro rosa por meio de galvanoplastia com ótimas características mecânicas e de soldabilidade com uma espessura de deposição de até 50% reduzida com relação à espessura atingível com ligas convencionais.[0009] The purpose of the present invention is to provide a rose gold alloy through electroplating with excellent mechanical and weldability characteristics with a deposition thickness of up to 50% reduced in relation to the thickness achievable with conventional alloys.
[00010] Dentro desse propósito, um objetivo da presente invenção consiste em fornecer uma liga de ouro rosa sem metais e/ou metaloides tóxicos.[00010] Within that purpose, an objective of the present invention is to provide a rose gold alloy without toxic metals and/or metalloids.
[00011] Este propósito e esse e outros objetivos, os quais se tornarão melhor evidentes a seguir, são alcançados por uma liga de ouro caracterizada pelo fato de que compreende ouro, cobre, zinco e telúrio com uma porcentagem de telúrio expressa em peso sobre o peso total da liga compreendida entre 0,001 e 1%.[00011] This purpose and this and other objectives, which will become more evident below, are achieved by a gold alloy characterized by the fact that it comprises gold, copper, zinc and tellurium with a percentage of tellurium expressed by weight over the total alloy weight between 0.001 and 1%.
[00012] Além disso, este propósito e este e outros objetivos, os quais se tornarão melhor evidentes a seguir, são alcançados por um método de galvanoplastia para obtenção de uma liga de ouro de acordo com uma ou mais dentre as reivindicações anteriores através do uso de um banho galvânico a base de água caracterizado pelo fato de que compreende o uso de um banho galvânico compreendendo ouro, cobre, zinco e telúrio.[00012] Furthermore, this purpose and this and other objects, which will become better evident below, are achieved by an electroplating method for obtaining a gold alloy according to one or more of the preceding claims through the use of a water-based galvanic bath characterized in that it comprises the use of a galvanic bath comprising gold, copper, zinc and tellurium.
[00013] Características e vantagens adicionais da invenção se tornarão melhor aparentes a partir da descrição detalhada de uma concretização preferida, mas não exclusiva, de uma liga de ouro, de acordo com a invenção, que compreende ouro, cobre, zinco e telúrio, bem como um agente aglutinante, com as seguintes porcentagens expressas em peso sobre o peso total da liga: - Au compreendido entre 30% e 95% - Te compreendido entre 0,01% e 1%[00013] Additional features and advantages of the invention will become better apparent from the detailed description of a preferred, but not exclusive, embodiment of a gold alloy, according to the invention, comprising gold, copper, zinc and tellurium, as well as as a binding agent, with the following percentages expressed by weight on the total weight of the alloy: - Au comprised between 30% and 95% - Te comprised between 0.01% and 1%
- Cu compreendido entre 3% e 69,98% - Zn compreendido entre 0,01% e 1%- Cu comprised between 3% and 69.98% - Zn comprised between 0.01% and 1%
[00014] Mais especificamente, tal liga de ouro compreende ouro, cobre, zinco e telúrio com as seguintes porcentagens expressas em peso sobre o peso total da liga: - Au compreendido entre 37% e 92% - Te compreendido entre 0,02% e 0,2% - Cu compreendido entre 7,6% e 62,97% - Zn compreendido entre 0,01% e 0,2%[00014] More specifically, such a gold alloy comprises gold, copper, zinc and tellurium with the following percentages expressed by weight on the total weight of the alloy: - Au comprised between 37% and 92% - Te comprised between 0.02% and 0.2% - Cu comprised between 7.6% and 62.97% - Zn comprised between 0.01% and 0.2%
[00015] Em uma concretização específica, a liga de ouro compreende ouro, cobre, zinco e telúrio com as seguintes porcentagens expressas em peso sobre o peso total da liga: - Au igual a 75% - Te igual a 0,1% - Cu igual a 24,88% - Zn igual a 0,02%[00015] In a specific embodiment, the gold alloy comprises gold, copper, zinc and tellurium with the following percentages expressed in weight on the total weight of the alloy: - Au equal to 75% - Te equal to 0.1% - Cu equal to 24.88% - Zn equal to 0.02%
[00016] A liga de ouro descrita pode ser obtida com um método de galvanoplastia por meio do uso de banhos galvânicos a base de água, no qual esses banhos compreendem ouro, cobre, zinco e telúrio com as seguintes composições: - Au compreendido entre 3 g/L e 8 g/L na forma de complexo de dicianoaurato de potássio, - Cu compreendido entre 40 g/L e 70 g/L na forma de cianeto de cobre, - Zn compreendido entre 100 mg/L e 1 g/L na forma de um complexo de zinco (II), - Te compreendido entre 1 mg/L e 100 mg/L na forma de um complexo alcalino, e no qual os parâmetros de operação são:[00016] The described gold alloy can be obtained with an electroplating method through the use of water-based galvanic baths, in which these baths comprise gold, copper, zinc and tellurium with the following compositions: - Au comprised between 3 g/L and 8 g/L in the form of potassium dicyanoaurate complex, - Cu comprised between 40 g/L and 70 g/L in the form of copper cyanide, - Zn comprised between 100 mg/L and 1 g/L in the form of a zinc (II) complex, - Te comprised between 1 mg/L and 100 mg/L in the form of an alkaline complex, and in which the operating parameters are:
- temperatura compreendida entre 50ºC e 80ºC, - pH compreendido entre 8 e 12, e - densidade de corrente aplicada compreendida entre 0,2 A/dm² e 1,5 A/dm².- temperature between 50ºC and 80ºC, - pH between 8 and 12, and - applied current density between 0.2 A/dm² and 1.5 A/dm².
[00017] De maneira conveniente, o banho galvânico pode ser enriquecido com uma ou ambas as substâncias selecionadas a partir do grupo que consiste em: cianeto livre compreendido entre 10 g/L e 50 g/L, agentes complexantes compreendidos entre 5 g/L e 20 g/L, sais condutores compreendidos entre 10 g/L e 100 g/L e agentes umectantes compreendidos entre 0,05 g/L e 10 g/L.[00017] Conveniently, the galvanic bath can be enriched with one or both substances selected from the group consisting of: free cyanide comprised between 10 g/L and 50 g/L, complexing agents comprised between 5 g/L and 20 g/L, conductive salts comprised between 10 g/L and 100 g/L and wetting agents comprised between 0.05 g/L and 10 g/L.
[00018] Mais especificamente, os agentes complexantes podem ser selecionados a partir do grupo que consiste em: ácidos carboxílicos, aminoácidos, poliaminas, aminas e ácidos fosfônicos.[00018] More specifically, complexing agents can be selected from the group consisting of: carboxylic acids, amino acids, polyamines, amines and phosphonic acids.
[00019] Considerando os sais condutores e agentes umectantes citados, estes podem ser selecionados, respectivamente, a partir do grupo que consiste em: citratos, tartaratos, oxalatos, gluconatos, carbonatos, fosfatos e sulfatos e a partir do grupo que consiste em: sais de lauril sulfato e quaternário de amônio.[00019] Considering the conductive salts and wetting agents mentioned, these can be selected, respectively, from the group consisting of: citrates, tartrates, oxalates, gluconates, carbonates, phosphates and sulfates and from the group consisting of: salts of lauryl sulfate and quaternary ammonium.
[00020] Para completar o banho galvânico, este pode compreender refinadores e/ou branqueadores de grãos selecionados a partir do grupo de metais constituído por: Zr, Ir, Se, Sb, Sn, Ga, In, Ge, Bi, Tl e Ag e/ou metais adicionais em quantidades vestigiais devido ao uso de produtos técnicos para sua produção, os quais estão compreendidos no grupo de metais que consiste em: Ag, As, Se, In, Ge e Ga.[00020] To complete the galvanic bath, it may comprise refiners and/or grain bleachers selected from the group of metals consisting of: Zr, Ir, Se, Sb, Sn, Ga, In, Ge, Bi, Tl and Ag and/or additional metals in trace amounts due to the use of technical products for their production, which are included in the group of metals consisting of: Ag, As, Se, In, Ge and Ga.
[00021] Abaixo está um exemplo de uma possível solução galvânica e também os parâmetros operacionais do banho galvânico: - Au: 5 g/L - Cu: 55 g/L - Zn: 0,5 g/L - Te: 50 mg/L - pH: 10,5 - temperatura: compreendida entre 60 e 70ºC - densidade de corrente: 0,5 A/dm² - trietilenotetramina: 1 mL/L - ácido iminodiacético: 10 g/L - gluconato de sódio: 5 g/L - cianeto de potássio livre: 25 g/L[00021] Below is an example of a possible galvanic solution and also the operating parameters of the galvanic bath: - Au: 5 g/L - Cu: 55 g/L - Zn: 0.5 g/L - Te: 50 mg/ L - pH: 10.5 - temperature: between 60 and 70ºC - current density: 0.5 A/dm² - triethylenetetramine: 1 mL/L - iminodiacetic acid: 10 g/L - sodium gluconate: 5 g/L - free potassium cyanide: 25 g/L
[00022] Na prática, foi descoberto que a liga de ouro e o método de galvanoplastia de acordo com a invenção, respondem ao problema técnico definido acima tornando possível uma deposição com características de brilho, resistência mecânica (com dureza compreendida entre 300 e 400 HV) e soldabilidade que são comparáveis ao estado da técnica com uma espessura de deposição de até 50% reduzida com relação à espessura alcançável com ligas convencionais.[00022] In practice, it was found that the gold alloy and the electroplating method according to the invention, respond to the technical problem defined above, making possible a deposition with characteristics of brightness, mechanical resistance (with hardness between 300 and 400 HV ) and weldability that are comparable to the state of the art with a deposition thickness of up to 50% reduced in relation to the thickness achievable with conventional alloys.
[00023] Em outras palavras, a possibilidade de obter ligas de ouro com espessura muito baixa com características mecânicas inalteradas permite uma economia de custos considerável para a quantidade de ouro usada e para as etapas de processamento subsequentes, com relação a um ciclo de trabalho baseado em eletrodeposição.[00023] In other words, the possibility of obtaining very thin gold alloys with unaltered mechanical characteristics allows considerable cost savings for the amount of gold used and for the subsequent processing steps, with respect to a work cycle based on in electrodeposition.
[00024] Com relação a outras ligas obtidas com os processos de eletrodeposição conhecidos hoje, são obtidos resultados excelentes na soldagem e/ou na produção de invólucros de autoproteção mesmo com espessuras muito abaixo de 100 mícrons, um valor limite inferior que, até o momento, não poderia ser ultrapassado com os processos do estado da técnica no intuito de obter objetos que possuam características ótimas de resistência e harmonia mecânica.[00024] With regard to other alloys obtained with the electroplating processes known today, excellent results are obtained in welding and/or in the production of self-protection casings even with thicknesses well below 100 microns, a lower limit value that, until now, , could not be surpassed with the processes of the state of the art in order to obtain objects that have optimal characteristics of resistance and mechanical harmony.
[00025] A liga assim descrita e obtida, pode, portanto, ser usada para deposição decorativa e/ou fornecer invólucros de autoproteção nos setores de roupas, joias, bijuterias, calçados e produtos de couro, obtendo espessuras compreendidas entre 1 e 100 micrometros com pesos em quilates de 9 a 22 quilates.[00025] The alloy thus described and obtained can therefore be used for decorative deposition and/or to provide self-protection casings in the clothing, jewellery, costume jewellery, footwear and leather products sectors, obtaining thicknesses between 1 and 100 micrometers with carat weights from 9 to 22 carats.
[00026] Uma vantagem da liga de ouro de acordo com a presente invenção consiste no fato de que ela é livre de metais tóxicos e/ou metaloides, tais como cádmio, os quais, para ligas convencionais são essenciais como agentes aglutinantes.[00026] An advantage of the gold alloy according to the present invention is that it is free of toxic metals and/or metalloids, such as cadmium, which, for conventional alloys, are essential as binding agents.
[00027] A liga de ouro, o método, e também o uso, assim concebidos, são suscetíveis a numerosas modificações e variações, todas as quais estão dentro do escopo das reivindicações anexas.[00027] The gold alloy, the method, and also the use, thus conceived, are susceptible to numerous modifications and variations, all of which are within the scope of the appended claims.
[00028] Além disso, todos os detalhes podem ser substituídos por outros elementos tecnicamente equivalentes.[00028] Also, all details can be replaced by other technically equivalent elements.
[00029] Na prática, os materiais usados, bem como as formas e dimensões contingentes, podem ser de acordo com os requisitos e com o estado da técnica.[00029] In practice, the materials used, as well as the contingent shapes and dimensions, can be according to the requirements and the state of the art.
[00030] As descrições no Pedido de Patente Italiano nº 10201900001769, a partir do qual este pedido reivindica prioridade, são aqui incorporadas por referência.[00030] The disclosures in Italian Patent Application No. 10201900001769, from which this application claims priority, are incorporated herein by reference.
[00031] Onde características técnicas mencionadas em qualquer reivindicação são seguidas por sinais de referência, esses sinais de referência foram incluídos para o único propósito de aumentar a compreensão das reivindicações e, dessa forma, tais sinais de referência não possuem qualquer efeito limitante na interpretação de cada elemento identificado por meio de exemplo por tais sinais de referência.[00031] Where technical features mentioned in any claim are followed by reference signs, these reference signs have been included for the sole purpose of increasing the understanding of the claims and, as such, such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.
Claims (17)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102019000001769 | 2019-02-07 | ||
| IT102019000001769A IT201900001769A1 (en) | 2019-02-07 | 2019-02-07 | Rose gold alloy, manufacturing process and use. |
| PCT/EP2020/051892 WO2020160951A1 (en) | 2019-02-07 | 2020-01-27 | Rose gold alloy, production method and use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112021011187A2 true BR112021011187A2 (en) | 2021-08-24 |
Family
ID=66380037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112021011187-5A BR112021011187A2 (en) | 2019-02-07 | 2020-01-27 | Rose gold alloy, production method and use |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3921459A1 (en) |
| CN (1) | CN113260738A (en) |
| BR (1) | BR112021011187A2 (en) |
| IT (1) | IT201900001769A1 (en) |
| WO (1) | WO2020160951A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE754151A (en) * | 1969-08-08 | 1970-12-31 | Sel Rex Corp | AQUEOUS BATH FOR ELECTROLYTIC GOLD OR GOLD ALLOY PLATING ON A CONDUCTIVE ARTICLE, PROCESS FOR MANUFACTURING SUCH AQUEOUS BATH AND USE OF THE SAME |
| CH662583A5 (en) * | 1985-03-01 | 1987-10-15 | Heinz Emmenegger | GALVANIC BATH FOR THE ELECTROLYTIC DEPOSITION OF GOLD-COPPER-CADMIUM-ZINC ALLOYS. |
| DE3878783T2 (en) * | 1987-08-21 | 1993-07-22 | Engelhard Ltd | BATH FOR ELECTROPLATING A GOLD-COPPER-ZINC ALLOY. |
| GB8903818D0 (en) * | 1989-02-20 | 1989-04-05 | Engelhard Corp | Electrolytic deposition of gold-containing alloys |
| TWI404233B (en) * | 2009-03-31 | 2013-08-01 | Epistar Corp | A photoelectronic element and the manufacturing method thereof |
| DE102011056318B3 (en) * | 2011-12-13 | 2013-04-18 | Doduco Gmbh | Electrolytic bath for depositing a gold-copper alloy |
| CH707539B1 (en) * | 2013-02-06 | 2017-01-13 | Rolex Sa | Pink gold alloy for timepiece. |
-
2019
- 2019-02-07 IT IT102019000001769A patent/IT201900001769A1/en unknown
-
2020
- 2020-01-27 WO PCT/EP2020/051892 patent/WO2020160951A1/en unknown
- 2020-01-27 CN CN202080006351.7A patent/CN113260738A/en active Pending
- 2020-01-27 BR BR112021011187-5A patent/BR112021011187A2/en unknown
- 2020-01-27 EP EP20701217.0A patent/EP3921459A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT201900001769A1 (en) | 2020-08-07 |
| EP3921459A1 (en) | 2021-12-15 |
| CN113260738A (en) | 2021-08-13 |
| WO2020160951A1 (en) | 2020-08-13 |
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