DE3634540C1 - Use of silver alloys as a material for wires for the manufacture of jewellery chains - Google Patents
Use of silver alloys as a material for wires for the manufacture of jewellery chainsInfo
- Publication number
- DE3634540C1 DE3634540C1 DE3634540A DE3634540A DE3634540C1 DE 3634540 C1 DE3634540 C1 DE 3634540C1 DE 3634540 A DE3634540 A DE 3634540A DE 3634540 A DE3634540 A DE 3634540A DE 3634540 C1 DE3634540 C1 DE 3634540C1
- Authority
- DE
- Germany
- Prior art keywords
- silver
- wires
- weight
- alloys
- manufacture
- 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.)
- Expired
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 229910001316 Ag alloy Inorganic materials 0.000 title claims description 5
- 239000000463 material Substances 0.000 title claims description 4
- 229910052709 silver Inorganic materials 0.000 claims abstract description 12
- 239000004332 silver Substances 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 5
- 239000011701 zinc Substances 0.000 claims abstract description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 11
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000002588 toxic effect Effects 0.000 abstract description 3
- 239000000470 constituent Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000956 alloy Substances 0.000 description 9
- 229910000925 Cd alloy Inorganic materials 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
- NSAODVHAXBZWGW-UHFFFAOYSA-N cadmium silver Chemical compound [Ag].[Cd] NSAODVHAXBZWGW-UHFFFAOYSA-N 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C22C5/06—Alloys based on silver
- C22C5/08—Alloys based on silver with copper as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Adornments (AREA)
Abstract
Description
Drähte auf Silberbasis für die Herstellung von Schmuckketten werden im allgemeinen in zwei Karätigkeitsstufen hergestellt, nämlich mit etwa 83,5 Gew.-% und 92,5 Gew.-% Silbergehalt. Die hierfür verwendeten Legierungen müssen sich durch eine sehr gute Verformbarkeit, geringe Verfestigung bei der Verformung und gute Lötbarkeit auszeichnen. Für Kettendrähte mit 92,5 Gew.-% Silbergehalt wird vorwiegend eine Silber-Kupfer-Legierung verwendet, die diesen Anforderungen entspricht.Silver based wires for the manufacture of Jewelry chains are generally divided into two Carat levels produced, namely with about 83.5 wt% and 92.5 wt% silver content. The one for this Alloys used must stand out through a very good ductility, low hardening at Characterize deformation and good solderability. For Chain wires with 92.5 wt .-% silver content mainly uses a silver-copper alloy, that meets these requirements.
Drähte aus einer binären Legierung mit 83,5 Gew.-% Silber und 16,5 Gew.-% Kupfer sind für die Fabrikation feiner Ketten nicht geeignet, da deren Elastizität nach dem Biegen der Kettenglieder zu hoch ist. Dadurch erfolgt eine Rückfederung der gebogenen Kettenglieder. Damit gelangt nicht genügend Lotpulver in den Lötspalt, was zu vermindeter Reißfestigkeit der gelöteten Kette führt.Binary alloy wires with 83.5% by weight Silver and 16.5% by weight copper are for the Fabrication of fine chains is not suitable because of their Elasticity after bending the chain links too is high. This results in a springback of the curved chain links. This does not work enough solder powder in the soldering gap, resulting in reduced Tensile strength of the soldered chain leads.
Kettendrähte mit einer Karätigkeit von 83,5% Silber werden daher vorwiegend aus einer Silber-Cadmium- Legierung hergestellt. Diese Legierung erfüllt alle Anforderungen, die zur Herstellung feiner Schmuckketten notwendig sind. Cadmium ist jedoch toxisch und verursacht Umweltbelastungen. Besonders kritisch sind hierbei das Erschmelzen der Legierungen und das Glühen der Drähte, das Löten, die Entsorgung der verwendeten Schleif- und Poliermittel, sowie die Reinhaltung des Abwassers der Verarbeitungsstätte.Chain wires with a car activity of 83.5% silver are therefore mainly made from a silver cadmium Alloy. This alloy meets everyone Requirements for the production of fine jewelry chains are necessary. However, cadmium is toxic and causes environmental pollution. Are particularly critical the melting of the alloys and the annealing of the wires, the soldering, the disposal of the used Abrasives and polishes, as well as keeping the Waste water from the processing plant.
Es war daher Aufgabe der vorliegenden Erfindung, Silberlegierungen mit etwa 83,5 Gew.-% Feingehalt als Werkstoff für Drähte zur Herstellung von Schmuckketten zu entwickeln, die in bezug auf Verformbarkeit und Lötbarkeit den bekannten Silber- Cadmium-Legierungen entsprechen, jedoch keine toxischen Bestandteile aufweisen.It was therefore an object of the present invention Silver alloys with a fineness of approximately 83.5% by weight as a material for wires for the production of To develop jewelry chains related to Deformability and solderability of the well-known silver Correspond to cadmium alloys, but not toxic Have components.
Diese Aufgabe wird erfindungsgemäß durch die Verwendung von Silberlegierungen aus 79 bis 87 Gew.-% Silber, 1 bis 6 Gew.-% Kupfer und 10 bis 19 Gew.-% Zink gelöst.This object is achieved by the use of silver alloys from 79 to 87% by weight of silver, 1 to 6 wt .-% copper and 10 to 19 wt .-% zinc dissolved.
Vorzugsweise verwendet man Legierungen aus 82 bis 85 Gew.-% Silber, 1 bis 4 Gew.-% Kupfer und 12 bis 15 Gew.-% Zink.Alloys of 82 to 85 are preferably used % By weight silver, 1 to 4% by weight copper and 12 to 15% by weight Zinc.
Diese Legierungen lassen sich mit nur geringem Härteanstieg zu dünnen Drähten verformen. Beim Biegen von Kettengliedern auf Kettenbiegeautomaten tritt keine elastische Rückfederung des gebogenen Drahtabschnitts ein, so daß ein enger Lötspalt entsteht und ein problemloses Löten nach Füllen der Lötfuge mit Lotpulver möglich ist.These alloys can be made with little Deform the increase in hardness to thin wires. When bending there are no chain links on automatic chain bending machines elastic springback of the bent wire section one, so that a narrow solder gap is created and one easy soldering after filling the solder joint with solder powder is possible.
Weiterhin lassen sich die erfindungsgemäßen Legierungen gut versilbern, weisen kaum sichtbare Farbunterschiede zu Silber-Cadmium-Legierungen auf und sind gut spanend zu bearbeiten. Die Verwendung der erfindungsgemäßen Legierungen zur Herstellung feiner Drähte für Schmuckketten bietet daher bei gleichbleibenden Verarbeitungseigenschaften wie die bisher benutzte Silber-Cadmium-Legierung den Vorteil der Freiheit von Cadmium und leistet damit einen Beitrag zur Sauberhaltung unserer Umwelt. The alloys according to the invention can also be used silver-plated well, hardly noticeable color differences to silver-cadmium alloys and are good for machining to edit. The use of the invention Alloys for the production of fine wires for Jewelry chains therefore offers the same Processing properties as the previously used Silver-cadmium alloy the advantage of freedom from Cadmium and thus contributes to keeping it clean our environment.
Die Zusammensetzung und Eigenschaften einiger erfindungsgemäßer Legierungen sind in folgender Tabelle aufgeführt.The composition and properties of some Alloys according to the invention are as follows Table listed.
Eine Legierung aus 84% Silber und 16% Cadmium, wie sie bisher für Schmuckketten verwendet wird, weist eine Härte von 52 [HV5] auf.An alloy of 84% silver and 16% cadmium, such as previously used for jewelry chains a hardness of 52 [HV5].
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3634540A DE3634540C1 (en) | 1986-10-10 | 1986-10-10 | Use of silver alloys as a material for wires for the manufacture of jewellery chains |
| IT8767853A IT1211394B (en) | 1986-10-10 | 1987-10-09 | USE OF SILVER ALLOYS AS MATERIAL FOR WIRES FOR THE PRODUCTION OF DECORATIVE CHAINS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3634540A DE3634540C1 (en) | 1986-10-10 | 1986-10-10 | Use of silver alloys as a material for wires for the manufacture of jewellery chains |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3634540C1 true DE3634540C1 (en) | 1988-01-28 |
Family
ID=6311456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3634540A Expired DE3634540C1 (en) | 1986-10-10 | 1986-10-10 | Use of silver alloys as a material for wires for the manufacture of jewellery chains |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE3634540C1 (en) |
| IT (1) | IT1211394B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2344352A (en) * | 1998-12-04 | 2000-06-07 | George William Anthony Kent | Silver alloy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247602A (en) * | 1978-06-19 | 1981-01-27 | Ferd. Wagner | Silver alloy wire for jewelry chains |
| US4473621A (en) * | 1983-07-19 | 1984-09-25 | Johnson Matthey Limited | Cadmium free gold alloys |
-
1986
- 1986-10-10 DE DE3634540A patent/DE3634540C1/en not_active Expired
-
1987
- 1987-10-09 IT IT8767853A patent/IT1211394B/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247602A (en) * | 1978-06-19 | 1981-01-27 | Ferd. Wagner | Silver alloy wire for jewelry chains |
| US4473621A (en) * | 1983-07-19 | 1984-09-25 | Johnson Matthey Limited | Cadmium free gold alloys |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2344352A (en) * | 1998-12-04 | 2000-06-07 | George William Anthony Kent | Silver alloy |
| GB2344352B (en) * | 1998-12-04 | 2000-11-22 | George William Anthony Kent | Silver alloy electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1211394B (en) | 1989-10-18 |
| IT8767853A0 (en) | 1987-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8100 | Publication of patent without earlier publication of application | ||
| D1 | Grant (no unexamined application published) patent law 81 | ||
| 8363 | Opposition against the patent | ||
| 8365 | Fully valid after opposition proceedings | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: MUERRLE, ULRICH, DR., 7530 PFORZHEIM, DE |
|
| 8339 | Ceased/non-payment of the annual fee |