EP3198048A1 - Élément de connexion électrique - Google Patents

Élément de connexion électrique

Info

Publication number
EP3198048A1
EP3198048A1 EP15756842.9A EP15756842A EP3198048A1 EP 3198048 A1 EP3198048 A1 EP 3198048A1 EP 15756842 A EP15756842 A EP 15756842A EP 3198048 A1 EP3198048 A1 EP 3198048A1
Authority
EP
European Patent Office
Prior art keywords
electrical connection
connection element
alloy
nickel
copper
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
EP15756842.9A
Other languages
German (de)
English (en)
Other versions
EP3198048B1 (fr
Inventor
Timo ALLMENDINGER
Kai Weber
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.)
Wieland Werke AG
Original Assignee
Wieland Werke AG
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 Wieland Werke AG filed Critical Wieland Werke AG
Priority to PL15756842T priority Critical patent/PL3198048T3/pl
Publication of EP3198048A1 publication Critical patent/EP3198048A1/fr
Application granted granted Critical
Publication of EP3198048B1 publication Critical patent/EP3198048B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon

Definitions

  • the invention relates to an electrical connection element containing a copper-zinc alloy according to the preamble of claim 1.
  • a first step in this direction was the development of precipitation-hardening copper alloys, for example based on the system
  • CuCrAgFeTiSi with 46 MS / m and strengths up to 610 MPa Another important advantage of this alloy is the very good relaxation resistance of the material when used at elevated temperatures up to 200 ° C. This type of alloy can cover applications in the automotive, industrial electronics and telecommunications sectors. In addition, bronze materials are used, which are characterized by a fine
  • Forming zones is much lower than when using standard bronzes. Thus, subsequent coatings can be carried out with a smaller layer thickness, which can achieve considerable cost savings in further processing.
  • the electrical conductivity is identical to that of standard bronzes and is around 7.5 to 12 MS / m.
  • the material is high strength, has with
  • the materials described are particularly suitable for processing on punching / bending machines and can be machined only with great effort.
  • CuPbl P is another easily machinable material that also has a high electrical conductivity of around 50 MS / m. It is particularly suitable for connectors and other electronic applications.
  • the alloy spectrum is rounded off by further precipitation-hardening materials.
  • these include, for example, CuNi1 Pb1 P and CuNiPbO, 5P as low-alloy copper material with high strength, good conductivity of at least 32 MS / m and good machinability. Due to the Pb content, the material is particularly suitable for machining machined plug-in contacts in electrical engineering and electronics.
  • the invention has the object of developing an electrical connection element made of a lead-free or lead-free copper alloy.
  • the invention is represented by the features of claim 1.
  • the other dependent claims give advantageous embodiments and further developments of the invention.
  • the invention includes the technical teaching for the construction of an electrical connection element containing a copper-zinc alloy.
  • the copper-zinc alloy consists of (in% by weight):
  • iron-nickel-manganese-containing mixed silicides are incorporated in the matrix.
  • the microstructure consists of an ⁇ -matrix, in the inclusions of ß-phase from 5 to 45 vol .-% and iron-nickel-manganese-containing
  • Mixed silicides are contained up to 20 vol .-%. Furthermore, the structure contains the iron-nickel-manganese-containing mixed silicides with a stalk-like shape and iron-nickel-enriched mixed silicides with a globular shape.
  • the alloy composition according to the invention is suitable for electrical connection elements. So far, an application of such alloys according to the German patent application DE 10 2007 029 991 A1 of the Applicant was only for a use for
  • the invention is based on the idea to provide an electrical connection element with a copper-zinc alloy with embedded iron-nickel-manganese-containing mixed silicides, which can be prepared in particular by means of the continuous or semi-continuous continuous casting process. Due to the mixed silicide formation and structure formation, the copper-zinc alloy has a very high electrical conductivity for this material group.
  • the alloy has high hardness and strength values, yet a necessary degree of ductility, expressed by the elongation at break value in a tensile test, is ensured.
  • the subject invention proves to be particularly suitable for electrical
  • Connecting elements such as turned connectors
  • Plug-in devices electrical terminals, optionally with screw connections.
  • the alloy has a high during cold forming
  • the material is also particularly suitable for machining electrical connecting elements.
  • the good machinability is already achieved by a ß-phase of 5 vol .-%. At higher levels, up to 45% by volume of ⁇ -phase also improves chip formation during the cutting process, in that desirably short chips are formed. With a content of ⁇ -phase below 5% by volume, the machinability in the use as automatic material for high metal removal rates is no longer satisfactory. With a ⁇ -phase content of more than 45% by volume, it can be seen that the toughness of the material and the temperature resistance of the microstructure deteriorate. The final state of the alloy from the respective manufacturing process leads to a ⁇ -phase, which is embedded like an island in a microstructure of an ⁇ -matrix. Such ß-phase islands are particularly favorable for the machinability and the
  • Corrosion resistance of the alloy A particularly high surface quality of the machined surfaces is achieved with a ⁇ -phase content, however, in particular from 10 to 25% by volume. In the specified volume interval of 5 to 45 vol .-% of ß-phase also a comparatively low tool wear, so that the
  • the particular advantage of the alloy according to the invention is based on an optimized combination of properties for the purposes in the form of a
  • the claimed material solution takes into account the substituted due to conventional alloys lead content the
  • this material is predestined for special applications where a high degree of plasticizability is required despite the high hardness and strength requirements.
  • the copper-zinc alloy in an advantageous embodiment of the invention, the copper-zinc alloy
  • Toughness properties and electrical conductivity optionally further improved with a final stress relief annealing.
  • the final flash annealing is carried out at 300 ° C to 400 ° C for 3 to 4 hours.
  • the copper-zinc alloy may contain 33.5 to 36.0% Zn. At these higher levels of zinc, it is still possible to use those required for electrical fasteners
  • the electrical conductivity of the alloy may be at least 5.8 MS / m.
  • Particularly preferred conductivities are at least 10 MS / m to over 13 MS / m. These values are comparable
  • the structure consisting of an ⁇ -matrix, in which inclusions of ⁇ -phase of from 5 to 45% by volume and of iron-nickel-manganese-containing mixed silicides of up to 20% by volume are contained after further processing, the at least one hot forming and / or cold forming and optionally further annealing steps may be formed.
  • this alloy ensures an advantageous temperature resistance of the microstructure with sufficient toughness properties for the production of the connecting elements.
  • the alloy may be advantageous in its
  • At least one cold forming preferably by drawing or cold rolling.
  • the alloy may have undergone the following steps in its further processing:
  • Temperature range of 250 to 700 ° C it is possible to set a fine distribution of heterogeneous structure. In this way, the demand for the improvement of the electrical conductivity is met.
  • the microstructure of the copper-zinc alloy can be modified in its phase distribution such that, in addition to high strength, it also has sufficient temperature resistance, ductility and good electrical conductivity.
  • Cast bolts of the copper-zinc alloy according to the invention were produced by continuous casting or chill casting.
  • the chemical composition of the continuous casting of the alloy 1 and the chill casting of the alloys 2 and 3 is shown in Table 1.
  • Table 1 Chemical composition of the cast bolts or ingots (in
  • the characteristic value for the electrical conductivity can be further increased for the formats of the alloys 2 and 3 produced according to the production sequence 5 by an additionally performed flash annealing at a temperature of 250 to 450 ° C.
  • the ⁇ content is between 5 and 20% in all five production sequences. Further studies show that the ⁇ -contents are preferably between 5-30%.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Conductive Materials (AREA)

Abstract

L'invention concerne un élément de connexion électrique qui contient un alliage de cuivre-zinc. L'alliage de cuivre-zinc est composé (en % en poids) de 28,0 à 36,0 % de Zn, de 0,5 à 1,5 % de Si, de 1,5 à 2,5 % de Mn, de 0,2 à 1,0 % de Ni, de 0,5 à 1,5 % d'Al, de 0,1 à 1,0 % de Fe, éventuellement encore jusqu'à un maximum de 0,1 % de Pb, éventuellement encore jusqu'à un maximum de 0,1 % de P, éventuellement encore jusqu'à 0,08 % de S, le reste étant du Cu et des impuretés inévitables. Selon l'invention, des siliciures mixtes contenant du fer-nickel-manganèse sont inclus dans la matrice. La structure se compose d'une α-matrice dans laquelle sont contenues des inclusions de β-phase dans une quantité de 5 à 45 % en volume et de siliciures mixtes contenant du fer-nickel-manganèse dans une quantité allant jusqu'à 20 % en volume. En outre, dans la structure, les siliciures mixtes contenant du fer-nickel-manganèse ont une forme de barre et les siliciures mixtes enrichis en fer-nickel ont une forme globulaire.
EP15756842.9A 2014-09-25 2015-08-29 Bornes électriques Active EP3198048B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15756842T PL3198048T3 (pl) 2014-09-25 2015-08-29 Zaciski elektryczne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014014239.6A DE102014014239B4 (de) 2014-09-25 2014-09-25 Elektrisches Verbindungselement
PCT/EP2015/001759 WO2016045770A1 (fr) 2014-09-25 2015-08-29 Élément de connexion électrique

Publications (2)

Publication Number Publication Date
EP3198048A1 true EP3198048A1 (fr) 2017-08-02
EP3198048B1 EP3198048B1 (fr) 2020-02-26

Family

ID=54014765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15756842.9A Active EP3198048B1 (fr) 2014-09-25 2015-08-29 Bornes électriques

Country Status (9)

Country Link
US (1) US20170204501A1 (fr)
EP (1) EP3198048B1 (fr)
JP (1) JP6514318B2 (fr)
KR (1) KR20170059436A (fr)
CN (1) CN106715731A (fr)
DE (1) DE102014014239B4 (fr)
PL (1) PL3198048T3 (fr)
TW (1) TWI651422B (fr)
WO (1) WO2016045770A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3958402B1 (fr) * 2017-05-17 2023-04-05 Infineon Technologies AG Procédé de connexion électrique d'un module électronique et ensemble électronique
DE202018104958U1 (de) 2018-08-30 2018-09-12 Harting Electric Gmbh & Co. Kg Steckverbinder mit Komponenten aus verbessertem Material
DE202020101700U1 (de) * 2020-03-30 2021-07-01 Otto Fuchs - Kommanditgesellschaft - Pb-freie Cu-Zn-Legierung
CN113981268B (zh) * 2021-10-29 2022-10-21 宁波金田铜业(集团)股份有限公司 一种黄铜线材的制备方法
DE102022122831A1 (de) 2022-09-08 2024-03-14 Diehl Brass Solutions Stiftung & Co. Kg Bleifreie Messinglegierung und daraus hergestelltes Maschinenelement
DE102022122830A1 (de) 2022-09-08 2024-03-14 Diehl Brass Solutions Stiftung & Co. Kg Bleifreie Messinglegierung und daraus hergestelltes Lagerbauteil

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL242965A (fr) * 1959-06-03
IT241782Y1 (it) * 1996-07-18 2001-05-17 Trafimet Spa Attacco per cavi di saldatura con incorporato un connettore per ilcollegamento al cavo di alimentazione elettrica.
US6471792B1 (en) * 1998-11-16 2002-10-29 Olin Corporation Stress relaxation resistant brass
JP4123459B2 (ja) * 2000-06-12 2008-07-23 三菱マテリアル株式会社 チャンファー部がすぐれた疲労強度を有する銅合金製熱間型鍛造シンクロナイザーリング
CN1225564C (zh) * 2003-03-14 2005-11-02 宁波博威集团有限公司 高锌锡锰铬黄铜合金及其线材制造工艺
CH693948A5 (fr) * 2003-03-21 2004-05-14 Swissmetal Boillat Sa Alliage à base de cuivre.
WO2005018055A1 (fr) * 2003-07-29 2005-02-24 Gator Loc, Llc Borne de cable et ensemble cable
JP4660735B2 (ja) * 2004-07-01 2011-03-30 Ｄｏｗａメタルテック株式会社 銅基合金板材の製造方法
JP4834592B2 (ja) * 2007-03-29 2011-12-14 株式会社東芝 三次元映像表示装置
DE102007029991B4 (de) 2007-06-28 2013-08-01 Wieland-Werke Ag Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung
ES2527296T3 (es) * 2007-06-28 2015-01-22 Wieland-Werke Ag Aleación de cobre y cinc, procedimiento de producción y uso
CN103589903B (zh) * 2013-08-16 2016-04-20 武汉泛洲中越合金有限公司 一种高强度耐磨铜合金及其制造方法

Also Published As

Publication number Publication date
WO2016045770A1 (fr) 2016-03-31
JP6514318B2 (ja) 2019-05-15
TWI651422B (zh) 2019-02-21
KR20170059436A (ko) 2017-05-30
DE102014014239B4 (de) 2024-04-11
TW201617460A (zh) 2016-05-16
JP2017532436A (ja) 2017-11-02
EP3198048B1 (fr) 2020-02-26
CN106715731A (zh) 2017-05-24
PL3198048T3 (pl) 2020-07-13
US20170204501A1 (en) 2017-07-20
DE102014014239A1 (de) 2016-03-31

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