EP3611279A2 - Schmuckkörper aus einer platinlegierung - Google Patents

Schmuckkörper aus einer platinlegierung Download PDF

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Publication number
EP3611279A2
EP3611279A2 EP19189359.3A EP19189359A EP3611279A2 EP 3611279 A2 EP3611279 A2 EP 3611279A2 EP 19189359 A EP19189359 A EP 19189359A EP 3611279 A2 EP3611279 A2 EP 3611279A2
Authority
EP
European Patent Office
Prior art keywords
jewelry
platinum
alloy
copper
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19189359.3A
Other languages
English (en)
French (fr)
Other versions
EP3611279B1 (de
EP3611279A3 (de
Inventor
Kai-F. BINDER
Avni BAJRAKTARI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EGF Eduard G Fidel GmbH
Original Assignee
EGF Eduard G Fidel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EGF Eduard G Fidel GmbH filed Critical EGF Eduard G Fidel GmbH
Publication of EP3611279A2 publication Critical patent/EP3611279A2/de
Publication of EP3611279A3 publication Critical patent/EP3611279A3/de
Application granted granted Critical
Publication of EP3611279B1 publication Critical patent/EP3611279B1/de
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Anticipated expiration legal-status Critical

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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
    • C22C5/04—Alloys based on a platinum group metal
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • A44C27/001—Materials for manufacturing jewellery
    • A44C27/002—Metallic materials
    • A44C27/003—Metallic alloys

Definitions

  • the invention relates to a jewelry body, such as a piece of jewelry, in particular a ring-shaped piece of jewelry, or a part of a piece of jewelry according to the preamble of claim 1 and a jewelry alloy for producing such a jewelry body.
  • the jewelry body is made of a platinum alloy with a portion of copper.
  • a platinum jewelry alloy which has a proportion of platinum between 50.0 to 70.0% by weight and a proportion of copper between 0.5 to 40.0% by weight of silver.
  • the alloy is composed in such a way that, in particular, it enables the production of semi-finished products in the continuous casting process.
  • the object of the invention is therefore to enable easier manufacture and also high hardness of the finished piece of jewelry in the case of a generic jewelry body.
  • the platinum alloy has a proportion of at least 58.0 and preferably up to 60.5% by weight of platinum, at least 35.0 to preferably 40.0% by weight of copper and at least 0.06 to preferably 0.26% by weight. % Manganese on. Due to the high copper content, the platinum alloy is during the manufacture of the Piece of jewelry relatively soft and therefore particularly easy to work with a high level of detail. The additional use of manganese ensures that the piece of jewelry can be given a hardness, in particular by additional cold working, which can reach a hardness of 240 to 260 Vickers, preferably more than 250 Vickers.
  • the platinum alloy has a proportion of 59.5 to 62.0% by weight of platinum, 37.0 to 42.0% of copper and 0.1 to 0.3% by weight of manganese.
  • a particularly suitable ratio between the processability of the starting material and the degree of hardness of the finished piece of jewelry is achieved within these value ranges.
  • the alloy in this composition creates a particularly distinctive white tone of the jewelry body.
  • the alloy in this composition enables a particularly stable setting of decorative elements, such as stones in particular.
  • the heat treatment of a, for example, ring-shaped jewelry body made of the alloy with an at least 58.0% pure content of platinum takes place at an annealing temperature of the alloy between 670 and 690 °.
  • a soft hardness of 220 to 230 HV and a hardness of 240 to 260 HV are achieved after cold deformation of the jewelry ring.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Adornments (AREA)

Abstract

Die Erfindung betrifft einen Schmuckkörper aus einer kupferhaltigen Platinlegierung. Dabei ist vorgesehen, dass die Platinlegierung einen Anteil von wenigstens 58,0 Gew.-% Platin, wenigstens 35,0 Gew.-% Kupfer und wenigstens 0,06 Gew.-% Mangan aufweist.

Description

  • Die Erfindung betrifft einen Schmuckkörper, wie ein Schmuckstück, insbesondere ein ringförmiges Schmuckstück, oder einen Teil eines Schmuckstückes nach dem Oberbegriff des Anspruchs 1 sowie eine Schmuck-Legierung zur Herstellung eines solchen Schmuckkörpers. Der Schmuckkörper ist dabei aus einer Platinlegierung mit einem Anteil aus Kupfer hergestellt.
  • Aus EP 2 260 116 B1 ist eine Platin-Schmucklegierung bekannt, die einen Anteil an Platin zwischen 50,0 bis 70,0 Gew.-% und einen Anteil an Kupfer zwischen 0,5 bis 40,0 Gew.-% Silber aufweist. Die Legierung ist dabei derart zusammengesetzt, dass sie insbesondere die Herstellung von Halbzeugen im Stranggussverfahren ermöglicht.
  • Neben den bekannten Legierungen besteht am Schmuckmarkt ein Bedarf an Platin-Legierungen, die insbesondere bei der Herstellung von hochwertigem Platinschmuck, wie insbesondere Trauringen, einerseits eine leichtere Verarbeitung und ein sicheres Fassen von Zierelementen ermöglichen sowie andererseits eine hohe Widerstandsfähigkeit gegen Beschädigungen oder sonstige Gebrauchsspuren gewährleisten.
  • Die Aufgabe der Erfindung ist es daher, bei einem gattungsgemäßen Schmuckkörper eine leichtere Herstellung und zudem eine hohe Härte des fertiggestellten Schmuckstückes zu ermöglichen.
  • Diese Aufgabe wird durch den Schmuckkörper mit den Merkmalen des Anspruchs 1 gelöst. Dabei weist die Platinlegierung einen Anteil von wenigstens 58,0 und vorzugsweise bis 60,5 Gew.-% Platin, wenigstens 35,0 bis vorzugsweise 40,0 Gew.-% Kupfer und wenigstens 0,06 bis vorzugsweise 0,26 Gew.-% Mangan auf. Durch den hohen Kupferanteil ist die Platinlegierung während der Herstellung des Schmuckstückes relativ weich und dadurch besonders leicht und mit einem hohen Detaillierungsgrad zu verarbeiten. Die zusätzliche Verwendung des Mangans sorgt dabei dafür, dass das Schmuckstück insbesondere durch zusätzliche Kaltbearbeitung mit einer Härte versehen werden kann, die einen Härtegrad von 240 bis 260 Vickers, vorzugsweise über 250 Vickers erreichen kann.
  • In einer besonders vorteilhaften Ausführungsform weist die Platinlegierung einen Anteil von 59,5 bis 62,0 Gew.-% Platin, 37,0 bis 42,0 Kupfer und 0,1 bis 0,3 Gew.-% Mangan auf. Innerhalb dieser Wertebereiche wird ein besonders geeignetes Verhältnis zwischen Verarbeitbarkeit des Ausgangsmaterials und Härtegrad des fertiggestellten Schmuckstückes erreicht. Zudem erzeugt die Legierung in dieser Zusammensetzung einen besonders prägenden Weißton des Schmuckkörpers. Ferner ermöglicht die Legierung in dieser Zusammensetzung eine besonders stabile Fassung von Zierelementen, wie insbesondere Steinen.
  • Im Folgenden wird eine beispielhafte Zusammensetzung der Schmucklegierung und Ausführungsform des Schmuckkörpers angegeben:
    • Beispiel:
  • 60,2 Gew.-% Platin,
    38,6 Gew.-% Kupfer,
    0,12 Gew.-% Mangan
  • Die Wärmebehandlung eines aus der Legierung hergestellten, beispielsweise ringförmigen Schmuckkörpers mit einem wenigstens 58,0 %igen Reinhaltsgehalt an Platin erfolgt bei einer Glühtemperatur der Legierung zwischen 670 und 690°.
  • Bei einer Ringweite zwischen 52 und 64 mm wird dabei eine Weichhärte von 220 bis 230 HV und nach Kaltverformung des Schmuckringes eine Härte von 240 bis 260 HV erzielt.

Claims (4)

  1. Schmuckkörper aus einer kupferhaltigen Platinlegierung,
    dadurch gekennzeichnet, dass die Platinlegierung einen Anteil von
    wenigstens 58,0 Gew.-% Platin,
    wenigstens 35,0 Gew.-% Kupfer und
    wenigstens 0,06 Gew.-% Mangan
    aufweist.
  2. Schmuckkörper nach Anspruch 1, dadurch gekennzeichnet, dass die Platinlegierung einen Anteil von 58,0 bis 60,5 Gew.-% Platin 35,0 bis 40,0 Gew.-% Kupfer und 0,06 bis 0,26 Gew.-% Mangan
    aufweist.
  3. Schmuckkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Platinlegierung einen Anteil von 59,5 bis 62,0 Gew.-% Platin 37,0 bis 42,0 Gew.-% Kupfer und 0,1 bis 0,3 Gew.-% Mangan
    aufweist.
  4. Schmuck-Legierung zur Herstellung eines Schmuckkörpers nach einem der Ansprüche 1 bis 3.
EP19189359.3A 2018-08-16 2019-07-31 Schmuckkörper aus einer platinlegierung Active EP3611279B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018104717.5U DE202018104717U1 (de) 2018-08-16 2018-08-16 Schmuckkörper

Publications (3)

Publication Number Publication Date
EP3611279A2 true EP3611279A2 (de) 2020-02-19
EP3611279A3 EP3611279A3 (de) 2020-02-26
EP3611279B1 EP3611279B1 (de) 2022-09-07

Family

ID=63588310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19189359.3A Active EP3611279B1 (de) 2018-08-16 2019-07-31 Schmuckkörper aus einer platinlegierung

Country Status (5)

Country Link
EP (1) EP3611279B1 (de)
DE (1) DE202018104717U1 (de)
DK (1) DK3611279T3 (de)
ES (1) ES2930371T3 (de)
PT (1) PT3611279T (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2260116A1 (de) 2009-04-07 2010-12-15 Heimerle + Meule Gmbh Platin-schmucklegierung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7001473B2 (en) * 2003-09-02 2006-02-21 Melick Llc Method for producing platinum alloys and alloys which can be obtained using this method
MXPA06008848A (es) * 2004-02-04 2007-04-23 Karat Platinum Llc Aleacion de platino y metodo para la produccion de la misma.
CN106609346B (zh) * 2016-03-15 2018-11-30 北京纳米能源与系统研究所 一种非晶合金及其制备方法和应用

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2260116A1 (de) 2009-04-07 2010-12-15 Heimerle + Meule Gmbh Platin-schmucklegierung

Also Published As

Publication number Publication date
PT3611279T (pt) 2022-10-28
DK3611279T3 (da) 2022-11-14
EP3611279B1 (de) 2022-09-07
DE202018104717U1 (de) 2018-08-30
ES2930371T3 (es) 2022-12-09
EP3611279A3 (de) 2020-02-26

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