EP0492192B1 - Legierung für Brillendrähte und elektronische Bauteile - Google Patents

Legierung für Brillendrähte und elektronische Bauteile Download PDF

Info

Publication number
EP0492192B1
EP0492192B1 EP91120797A EP91120797A EP0492192B1 EP 0492192 B1 EP0492192 B1 EP 0492192B1 EP 91120797 A EP91120797 A EP 91120797A EP 91120797 A EP91120797 A EP 91120797A EP 0492192 B1 EP0492192 B1 EP 0492192B1
Authority
EP
European Patent Office
Prior art keywords
alloy
spectacle
alloys
alloy according
nickel
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 - Lifetime
Application number
EP91120797A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0492192A1 (de
Inventor
Klaus Tauber
Wolfgang Brandstätter
Erich Dommer
Jürgen Fackert
Bruno Rechtziegel
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.)
Berkenhoff and Co KG
Original Assignee
Berkenhoff and Co KG
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 Berkenhoff and Co KG filed Critical Berkenhoff and Co KG
Publication of EP0492192A1 publication Critical patent/EP0492192A1/de
Application granted granted Critical
Publication of EP0492192B1 publication Critical patent/EP0492192B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/04—Alloys based on copper with zinc as the next major constituent

Definitions

  • the invention relates to an alloy which is used on the one hand for the manufacture of eyeglass frames, in particular for the manufacture of temples and on the other hand as a connecting wire for electronic components. Furthermore, the invention relates to eyeglass frames, which were produced using the alloy, and eyeglass wire, which is used to produce the temples.
  • the known alloys have the disadvantage that they are not or only partially suitable for certain requirements, since the material does not have sufficient strength or spring properties or loses strength during processing, for example during soldering or welding processes.
  • Another disadvantage of the known alloys is that they contain a very high proportion of nickel. Since the percentage of the population who have allergies to nickel has increased significantly, many of these alloys cannot be used or can only be used with considerable effort, for example by applying additional coatings. Additional disadvantages of the known alloys are due to the relatively high price.
  • Lead wires for electronic components must have a low electrical conductivity and thus a low thermal conductivity, so that a temperature protection of the electronic components during connection work, such as. B. soldering is obtained.
  • the invention has for its object to provide an alloy for glasses or connecting wires, which has a low nickel content and low thermal conductivity with inexpensive to manufacture and favorable, high mechanical strengths.
  • the object is achieved by an alloy which, in percentages by weight, has the following composition contains: 63 - 78% copper, 3 - 7% nickel, 1 - 3% iron, 0.01 - 0.20% phosphorus, balance zinc.
  • the alloy according to the invention is distinguished by a number of considerable advantages.
  • the alloy according to the invention has a very low nickel content of only 3-7%, while in the alloy which is described in DE-OS 26 26 251, the nickel content is up to 26% can, similar to the alloy according to DE-OS 38 34 186, which provides a nickel content of 17-25%.
  • Another essential advantage of the alloy according to the invention is that it has a higher recrystallization temperature than the previously known eyeglass alloys. It is thus possible to weld or solder the alloy without significantly affecting the elastic properties.
  • the spring behavior of the alloy which is particularly important in the case of eyeglass temples, therefore also remains in the area of the welded or soldered joints. Such critical points are in particular in the area at which the temple is connected to the hinge part. Conventional alloys tend to lose strength in this connection area, with the result that the eyeglass frame bends easily in practical use.
  • the alloy according to the invention is easier to polish, as a result of which the overall appearance of the spectacle frame can be improved.
  • the alloy according to the invention is also distinguished by a better optical appearance and in particular has a gold effect, so that it may be possible to work with a smaller edition when coating with gold.
  • the alloy according to the invention has excellent spring properties, the iron and phosphorus content leads to increased strength compared to the previously known alloys.
  • the alloy according to the invention has a low electrical conductivity of 5.5-6.5 m / ohm ⁇ mm2 (Siemens) and a low thermal conductivity of 38-44 W / mxk .
  • the alloy has the following composition (in percent by weight): 64-68% copper, 4-5% nickel, 1-2% iron, 0.01-0.05 phosphorus, balance zinc. It can also prove to be particularly favorable if the alloy, also in percent by weight, is composed as follows: 65% copper, 4.6% nickel, 1.2% iron, 0.02% phosphorus, balance zinc.
  • the object is also achieved by an alloy which has the following composition, in percent by weight: 74-78% copper, 3.5-4.5% nickel, 1-2% iron, 0.01-0.05% phosphorus, Balance zinc.
  • the alloys according to the invention can preferably be processed to wire material of different cross-section, from which individual parts for an eyeglass frame can be manufactured in a known manner. It is thus possible without any problems to use the alloy according to the invention for the production of conventional spectacle frames. In particular, the required joining processes and joining steps can be carried out without the advantageous properties of the alloys according to the invention being impaired.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Eyeglasses (AREA)
  • Conductive Materials (AREA)
EP91120797A 1990-12-22 1991-12-04 Legierung für Brillendrähte und elektronische Bauteile Expired - Lifetime EP0492192B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9017408U DE9017408U1 (de) 1990-12-22 1990-12-22 Brillendrahtlegierung
DE9017408U 1990-12-22

Publications (2)

Publication Number Publication Date
EP0492192A1 EP0492192A1 (de) 1992-07-01
EP0492192B1 true EP0492192B1 (de) 1994-07-27

Family

ID=6860655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91120797A Expired - Lifetime EP0492192B1 (de) 1990-12-22 1991-12-04 Legierung für Brillendrähte und elektronische Bauteile

Country Status (9)

Country Link
US (1) US5259898A (enrdf_load_stackoverflow)
EP (1) EP0492192B1 (enrdf_load_stackoverflow)
JP (1) JPH04293744A (enrdf_load_stackoverflow)
AT (1) ATE109213T1 (enrdf_load_stackoverflow)
BR (1) BR9105516A (enrdf_load_stackoverflow)
DE (2) DE9017408U1 (enrdf_load_stackoverflow)
ES (1) ES2057721T3 (enrdf_load_stackoverflow)
HK (1) HK49995A (enrdf_load_stackoverflow)
TW (1) TW209251B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131426A1 (de) * 1991-09-20 1993-03-25 Berkenhoff Gmbh Legierung, insbesondere zur verwendung zur herstellung von schmuck, brillengestellen etc.
JP2807398B2 (ja) * 1993-08-03 1998-10-08 和明 深道 磁気抵抗効果材料、その製造方法および磁気抵抗素子
DE19624731A1 (de) * 1996-06-21 1998-01-02 Berkenhoff Gmbh Legierung, insbesondere zur Herstellung von Brillengestellen, Schmuck etc.
DE19624732A1 (de) * 1996-06-21 1998-01-02 Berkenhoff Gmbh Legierung, insbesondere zur Herstellung von Brillengestellen, Schmuck etc.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR501870A (fr) * 1919-06-24 1920-04-28 Knut Eenberg Nouvel alliage et son procédé d'obtention
US2224095A (en) * 1940-02-15 1940-12-03 Scovill Manufacturing Co Tube for heat exchanging apparatus
US4171972A (en) * 1978-02-21 1979-10-23 Olin Corporation Corrosion resistant copper base alloys for heat exchanger tube
JPS5934222B2 (ja) * 1981-11-13 1984-08-21 日本鉱業株式会社 ラジエ−タ−用銅合金
US5045411A (en) * 1990-01-10 1991-09-03 P.M. Refining, Inc. Alloy compositions

Also Published As

Publication number Publication date
JPH04293744A (ja) 1992-10-19
ATE109213T1 (de) 1994-08-15
DE9017408U1 (de) 1991-03-07
ES2057721T3 (es) 1994-10-16
HK49995A (en) 1995-04-13
TW209251B (enrdf_load_stackoverflow) 1993-07-11
BR9105516A (pt) 1992-09-29
DE59102355D1 (de) 1994-09-01
EP0492192A1 (de) 1992-07-01
US5259898A (en) 1993-11-09

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