EP0249740A2 - Using a copper alloy - Google Patents

Using a copper alloy Download PDF

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Publication number
EP0249740A2
EP0249740A2 EP87106904A EP87106904A EP0249740A2 EP 0249740 A2 EP0249740 A2 EP 0249740A2 EP 87106904 A EP87106904 A EP 87106904A EP 87106904 A EP87106904 A EP 87106904A EP 0249740 A2 EP0249740 A2 EP 0249740A2
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EP
European Patent Office
Prior art keywords
copper
alloy
continuous casting
nickel
phosphorus
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
EP87106904A
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German (de)
French (fr)
Other versions
EP0249740B1 (en
EP0249740A3 (en
Inventor
Horst Dipl.-Ing. Gravemann
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.)
KM Kabelmetal AG
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KM Kabelmetal AG
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Filing date
Publication date
Priority claimed from DE19863620655 external-priority patent/DE3620655A1/en
Application filed by KM Kabelmetal AG filed Critical KM Kabelmetal AG
Priority to AT87106904T priority Critical patent/ATE47543T1/en
Priority to IN479/CAL/87A priority patent/IN168332B/en
Publication of EP0249740A2 publication Critical patent/EP0249740A2/en
Publication of EP0249740A3 publication Critical patent/EP0249740A3/en
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Publication of EP0249740B1 publication Critical patent/EP0249740B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/059—Mould materials or platings
    • 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
    • C22C9/06—Alloys based on copper with nickel or cobalt 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 the use of a copper alloy consisting of 0.2 to 1.2% nickel, 0.04 to 0.25% phosphorus, the rest copper and manufacturing-related impurities.
  • Copper predominantly of the SF-Cu type, has long been used as a material for the production of continuous casting molds for the continuous casting of refractory metals such as steel, which, due to its high thermal conductivity, can dissipate the heat from the melt very quickly.
  • the wall thickness of the molds is chosen so large that it sufficiently meets the mechanical loads to be expected.
  • the invention consists in the use of a copper alloy consisting of 0.2 to 1.2% nickel, 0.04 to 0.25% phosphorus, the rest copper and production-related impurities as a material for continuous casting molds.
  • the nickel content is preferably 0.3 to 0.5% and the phosphorus content 0.06 to 0.1%, the ratio of nickel to phosphorus being between 3.5 and 7 to 1, preferably 5: 1.
  • the material is characterized by particularly favorable mechanical and physical properties. It has a thermal conductivity that is around 80% of that of pure copper.
  • the values for heat resistance, creep resistance and hot plasticity are also in an extremely favorable range for continuous casting molds.
  • the Brinell hardness as a benchmark for abrasion resistance reaches values of over 100.
  • Another essential requirement for continuous casting molds is high corrosion resistance, which is achieved by the copper-nickel-phosphorus alloy.
  • the physical properties that are placed on a continuous casting mold are not only limited to the conductivity and tensile strength, but it also depends on properties that could not easily be derived from US Pat. No. 2,155,405. Since the melt in contact with the mold wall in the case of steel has a temperature of more than 1300 ° C - the melting point of copper or copper alloys is around 1100 °, so a high thermal conductivity is of course important. However, since the mold wall can reach a temperature of up to 450 ° C, the heat resistance is of crucial importance, i.e. the sharp drop in strength must be shifted to a temperature range which is above the use temperature of the mold.
  • the semi-hard temperature (recrystallization temperature) of the alloy used according to the invention is approximately 575 ° C.
  • Another important property of materials for continuous casting molds is the warm plasticity, which is determined by the elongation at break. A high elongation at break together with a high heat resistance leads to a material for continuous casting molds which shows only slight signs of wear and does not tend to crack under the thermal stresses in the area of the bath level. Finally, creep behavior at higher temperatures is an essential measure of the freedom from distortion.
  • a copper alloy with 0.43% nickel, 0.0801% phosphorus, the rest copper and manufacturing-related impurities was molded into a tube by extrusion after casting.
  • the tube was then solution annealed at 700 ° C for one hour. After solution annealing, one sample was cold worked by 10% and another sample by 20%. Both samples were then cured at 450 ° C for eight hours.
  • the alloy according to the teaching of the invention is less expensive to produce than a copper-chromium-zirconium alloy, since the solution annealing temperature is much lower than that of copper-chromium-zirconium and thus the risk of coarse grain formation and rejects is avoided.
  • the alloy partners in the alloy according to the invention are much cheaper.
  • the invention is of course not limited to the exemplary embodiment, but can also be used for molds of all types with which metallic mold strands can be produced in a semi-continuous or fully continuous manner, for example tubular molds, block molds of all types, casting wheels, casting roll jackets, etc.

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  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Extrusion Of Metal (AREA)

Abstract

1. Use of a copper alloy comprising 0.2 to 1.2% nickel, 0.04 to 0.25% phosphorus, the remainder copper and impurities resulting from the production process in the hardened state as material for the mould walls of continuous casting moulds.

Description

Die Erfindung bezieht sich auf die Verwendung einer Kupferlegierung, bestehend aus 0,2 bis 1,2 % Nickel, 0,04 bis 0,25 % Phosphor, Rest Kupfer und herstellungsbedingte Verunreinigungen.The invention relates to the use of a copper alloy consisting of 0.2 to 1.2% nickel, 0.04 to 0.25% phosphorus, the rest copper and manufacturing-related impurities.

Als Werkstoff zur Herstellung von Stranggießkokillen zum Stranggießen von hochschmelzenden Metallen wie Stahl wird seit langem Kupfer, vorwiegend des Typs SF-Cu verwendet, welches aufgrund seiner hohen thermischen Leitfähigkeit sehr schnell die Wärme aus der Schmelze abzuleiten vermag. Die Wandstärke der Kokillen wird so groß gewählt, daß sie in ausreichender Weise den zu erwartenden mechanischen Beanspruchungen genügt.Copper, predominantly of the SF-Cu type, has long been used as a material for the production of continuous casting molds for the continuous casting of refractory metals such as steel, which, due to its high thermal conductivity, can dissipate the heat from the melt very quickly. The wall thickness of the molds is chosen so large that it sufficiently meets the mechanical loads to be expected.

Zur Erhöhung der Warmfestigkeit ist vorgeschlagen worden, Stranggießkokillen aus einer Legierung mit mindestens 85 % Kupfer und wenigstens einem weiteren eine Ausscheidungshärtung bewirkenden Legierungselement herzustellen. Als Legierungselemente werden bis zu 3 % Chrom, Silizium, Silber und Beryllium vorgeschlagen. Auch die aus diesem Werkstoff hergestellten Stranggießkokillen konnten noch nicht vollauf befriedigen, da insbesondere die Legierungskomponenten Silizium und Beryllium die thermische Leitfähigkeit stark herabsetzen (AT-PS 234 930).To increase the heat resistance, it has been proposed to produce continuous casting molds from an alloy with at least 85% copper and at least one further alloy element which effects precipitation hardening. Up to 3% chromium, silicon, silver and beryllium are proposed as alloying elements. Even those from this Continuous casting molds made of material have not yet been completely satisfactory, since the alloy components silicon and beryllium in particular greatly reduce the thermal conductivity (AT-PS 234 930).

Alle diese Lösungen haben als Werkstoffe für Stranggießkokillen noch nicht vollauf befriedigen können.All of these solutions have not yet been completely satisfactory as materials for continuous casting molds.

Dementsprechend besteht die Erfindung in der Verwendung einer Kupferlegierung, bestehend aus 0,2 bis 1,2 % Nickel, 0,04 bis 0,25 % Phosphor, Rest Kupfer und herstellungsbedingte Verunreinigungen als Werkstoff für Stranggießkokillen.Accordingly, the invention consists in the use of a copper alloy consisting of 0.2 to 1.2% nickel, 0.04 to 0.25% phosphorus, the rest copper and production-related impurities as a material for continuous casting molds.

Vorzugsweise beträgt der Nickelgehalt 0,3 bis 0,5 % und der Phosphorgehalt 0,06 bis 0,1 %, wobei das Verhältnis Nickel zu Phosphor zwischen 3,5 bis 7 zu 1 vorzugsweise 5:1 ist.The nickel content is preferably 0.3 to 0.5% and the phosphorus content 0.06 to 0.1%, the ratio of nickel to phosphorus being between 3.5 and 7 to 1, preferably 5: 1.

Der Werkstoff zeichnet sich durch besonders günstige mechanische und physikalische Eigenschaften aus. Er hat eine Wärmeleitfähigkeit, die bei ca. 80 % der des reinen Kupfers liegt. Die Werte für die Warmfestigkeit, Kriechfestigkeit und Warmplastizität liegen ebenfalls in einem für Stranggießkokillen äußerst günstigen Bereich. Die Brinellhärte als Maßstab für die Abriebfestigkeit erreicht Werte von über 100. Eine weitere wesentliche Anforderung bei Stranggießkokillen ist eine hohe Korrosionsbeständigkeit, die durch die Kupfer-Nickel-Phosphor-Legierung erreicht wird.The material is characterized by particularly favorable mechanical and physical properties. It has a thermal conductivity that is around 80% of that of pure copper. The values for heat resistance, creep resistance and hot plasticity are also in an extremely favorable range for continuous casting molds. The Brinell hardness as a benchmark for abrasion resistance reaches values of over 100. Another essential requirement for continuous casting molds is high corrosion resistance, which is achieved by the copper-nickel-phosphorus alloy.

Aus der US-PS 2 155 405 ist eine Kupferlegierung bekannt, die 0,25 bis 3 % Nickel, 0,05 bis 0,6 % Phosphor, Rest Kupfer enthält. Diese Legierung, die für elektrische Leiter verwendet werden soll, weist eine elektrische Leitfähigkeit von 67 % IACS auf und soll eine hohe Zugfestigkeit ausweisen.From US-PS 2 155 405 a copper alloy is known which contains 0.25 to 3% nickel, 0.05 to 0.6% phosphorus, the rest copper. This alloy, which is to be used for electrical conductors, has an electrical conductivity of 67% IACS and is said to have a high tensile strength.

Die physikalischen Eigenschaften, die an eine Stranggießkokille gestellt werden, beschränken sich nicht nur auf die Leitfähigkeit und Zugfestigkeit, sondern es kommt darüber hinaus auf Eigenschaften an, die nicht ohne weiteres aus der US-PS 2 155 405 herleitbar waren. Da die mit der Kokillenwandung in Berührung stehende Schmelze im Falle von Stahl eine Temperatur von mehr als 1300° C hat - der Schmelzpunkt von Kupfer bzw. Kupfelegierungen liegt bei ca. 1100° kommt es selbstredend auf ein hohes thermisches Leitvermögen an. Da die Kokillenwandung jedoch eine Temperatur von bis zu 450° C annehmen kann, ist die Warmfestigkeit von ganz entscheidender Bedeutung, d.h. der starke Abfall der Festigkeit muß in einen Temperaturbereich verschoben werden, der oberhalb der Gebrauchstemperatur der Kokille liegt. So liegt die Halbharttemperatur (Rekristallisationstemperatur) der erfindungsgemäß verwendeten Legierung bei ca. 575° C. Eine weitere wichtige Eigenschaft von Werkstoffen für Stranggießkokillen ist die Warmplastizität, die durch die Bruchdehnung bestimmt ist. Eine hohe Bruchdehnung gemeinsam mit einer hohen Warmfestigkeit führt zu einem Werkstoff für Stranggießkokillen, der nur geringe Verschleißerscheinungen aufweist und unter den thermischen Spannung en im Badspiegelbereich nicht zur Rißbildung neigt. Ein wesentliches Maß für die Verzugsfreiheit ist schließlich das Kriechverhalten bei höheren Temperaturen.The physical properties that are placed on a continuous casting mold are not only limited to the conductivity and tensile strength, but it also depends on properties that could not easily be derived from US Pat. No. 2,155,405. Since the melt in contact with the mold wall in the case of steel has a temperature of more than 1300 ° C - the melting point of copper or copper alloys is around 1100 °, so a high thermal conductivity is of course important. However, since the mold wall can reach a temperature of up to 450 ° C, the heat resistance is of crucial importance, i.e. the sharp drop in strength must be shifted to a temperature range which is above the use temperature of the mold. The semi-hard temperature (recrystallization temperature) of the alloy used according to the invention is approximately 575 ° C. Another important property of materials for continuous casting molds is the warm plasticity, which is determined by the elongation at break. A high elongation at break together with a high heat resistance leads to a material for continuous casting molds which shows only slight signs of wear and does not tend to crack under the thermal stresses in the area of the bath level. Finally, creep behavior at higher temperatures is an essential measure of the freedom from distortion.

Da Stranggießkokillen üblicherweise mit Wasser von außen gekühlt werden, wird von dem Kokillenwerkstoff noch eine hohe Korrosionsbeständigkeit gefordert.Since continuous casting molds are usually cooled with water from the outside, the mold material still requires a high level of corrosion resistance.

Die Erfindung ist an Hand eines Ausführungsbespiels näher erläutert.The invention is explained in more detail using an exemplary embodiment.

Eine Kupferlegierung mit 0,43 % Nickel, 0,0801 % Phosphor, Rest Kupfer und herstellungsbedingte Verunreinigungen wurde nach dem Gießen zu einem Rohr durch Strangpressen verformt. Das Rohr wurde dann eine Stunde bei 700° C lösungsgeglüht. Nach dem Lösungsglühen wurde eine Probe um 10 % eine andere Probe um 20 % kalt verformt. Beide Proben wurden anschließend bei 450° C acht Stunden lang ausgehärtet.A copper alloy with 0.43% nickel, 0.0801% phosphorus, the rest copper and manufacturing-related impurities was molded into a tube by extrusion after casting. The tube was then solution annealed at 700 ° C for one hour. After solution annealing, one sample was cold worked by 10% and another sample by 20%. Both samples were then cured at 450 ° C for eight hours.

Der Vergleich der in den Tabellen A, B und C aufgeführten technologischen Werte zeigt eindeutig, daß die Legierung nach der Lehre der Erfindung dem bisher für Kokillen fast ausschließlich verwendeten Vergleichswerkstoff SF-Kupfer in allen Belangen weit überlegen ist.A comparison of the technological values listed in Tables A, B and C clearly shows that the alloy according to the teaching of the invention is far superior in all respects to the comparative material SF copper that has been used almost exclusively for molds.

Gegenüber dem Vergleichswerkstoff Kupfer-Chrom-Zirkon sind einige Eigenschaften schlechter zu bewerten jedoch ist die Legierung nach der Lehre der Erfindung kostengünstiger herstellbar als eine Kupfer-Chrom-Zirkon-Legierung, da die Lösungsglühtemperatur wesentlich niediger liegt als bei Kupfer-Chrom-Zirkon und somit die Gefahr von Grobkornbildung und Ausschuß vermieden wird. Darüberhinaus sind die Legierungspartner bei der erfindungsgemäßen Legierung wesentlich preisgünstiger.Compared to the comparison material copper-chromium-zircon, some properties are to be rated worse, however, the alloy according to the teaching of the invention is less expensive to produce than a copper-chromium-zirconium alloy, since the solution annealing temperature is much lower than that of copper-chromium-zirconium and thus the risk of coarse grain formation and rejects is avoided. In addition, the alloy partners in the alloy according to the invention are much cheaper.

Die Erfindung beschränkt sich selbstverständlich nicht nur auf das Ausführungsbeispiel, sondern läßt sich ebenso anwenden für Kokillen aller Art, mit denen sich in halb-oder vollkontinuierlicher Weise metallische Formstränge herstellen lassen, zum Beispiel Rohrkokillen, Blockkokillen aller Art, Gießräder, Gießwalzenmäntel, u.a..

Figure imgb0001
Figure imgb0002
Figure imgb0003
 The invention is of course not limited to the exemplary embodiment, but can also be used for molds of all types with which metallic mold strands can be produced in a semi-continuous or fully continuous manner, for example tubular molds, block molds of all types, casting wheels, casting roll jackets, etc.
Figure imgb0001
Figure imgb0002
Figure imgb0003

Claims (5)

1. Verwendung einer Kupferlegierung bestehend aus 0,2 bis 1,2 % Nickel, 0,04 - 0,25 % Phosphor, Rest Kupfer und herstellungsbedingte Verunreinigungen im ausgehärteten Zustand als Werkstoff für Stranggießkokillen.1. Use of a copper alloy consisting of 0.2 to 1.2% nickel, 0.04 - 0.25% phosphorus, the rest copper and manufacturing-related impurities in the hardened state as a material for continuous casting molds. 2. Kupferlegierung nach Anspruch 1, dadurch gekennzeichnet, daß der Nickelgehalt 0,3 bis 0,5 % und der Phosphorgehalt 0,06 bis 0,1 % beträgt, wobei das Verhältnis Nickel : Phosphor zwischen 3,5 bis 7:1, vorzugsweise 5:1 ist.2. Copper alloy according to claim 1, characterized in that the nickel content is 0.3 to 0.5% and the phosphorus content is 0.06 to 0.1%, the ratio of nickel: phosphorus between 3.5 to 7: 1, preferably 5: 1 is. 3. Verfahren zur Herstellung einer Stranggießkokille aus einer Kupferlegierung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Legierung durch Warmformgebung verformt abgeschreckt, um mindestens 10 % kaltverformt und abschließend bei 350 - 500° C 1 bis 8 Stunden geglüht wird.3. A method for producing a continuous casting mold made of a copper alloy according to claim 1 or 2, characterized in that the alloy is deformed deformed by hot forming, cold worked by at least 10% and finally annealed at 350-500 ° C for 1 to 8 hours. 4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß nach der Warmformgebung ein Lösungsglühen bei 650 - 750° C durchgeführt wird.4. The method according to claim 3, characterized in that a solution annealing is carried out at 650 - 750 ° C after the hot forming. 5. Verfahren nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß nach dem Aushärtungsglühen bei 350 - 500° C die Legierung um mindestens 10 % kaltverformt wird.5. The method according to claim 3 or 4, characterized in that after the hardening annealing at 350 - 500 ° C, the alloy is cold worked by at least 10%.
EP87106904A 1986-06-20 1987-05-12 Using a copper alloy Expired EP0249740B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT87106904T ATE47543T1 (en) 1986-06-20 1987-05-12 USE OF A COPPER ALLOY.
IN479/CAL/87A IN168332B (en) 1986-06-20 1987-06-19

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3620655 1986-06-20
DE19863620655 DE3620655A1 (en) 1986-06-20 1986-06-20 Copper alloy for producing concast moulds

Publications (3)

Publication Number Publication Date
EP0249740A2 true EP0249740A2 (en) 1987-12-23
EP0249740A3 EP0249740A3 (en) 1988-04-20
EP0249740B1 EP0249740B1 (en) 1989-10-25

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EP (1) EP0249740B1 (en)
JP (1) JP2540161B2 (en)
KR (1) KR920007884B1 (en)
DE (1) DE3760850D1 (en)
ES (1) ES2011467B3 (en)
FI (1) FI82893C (en)
MX (1) MX170389B (en)
ZA (1) ZA874022B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0305986A2 (en) * 1987-08-31 1989-03-08 Mitsubishi Materials Corporation Mold Member and Rapidly Solidifying Water Cooled Rotary Roll Member
FR2751990A1 (en) * 1996-07-30 1998-02-06 Griset Ets COPPER-BASED ALLOY WITH HIGH ELECTRICAL CONDUCTIVITY AND SOFTENING TEMPERATURE FOR ELECTRONIC APPLICATIONS
EP1170074A1 (en) * 2000-07-07 2002-01-09 KM Europa Metal AG Use of a copper-nickel alloy

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2155405A (en) * 1938-04-28 1939-04-25 Chase Brass & Copper Co Electrical conductor
US2155408A (en) * 1938-04-28 1939-04-25 Chase Brass & Copper Co Copper base alloys
AT234930B (en) * 1960-02-25 1964-07-27 Boehler & Co Ag Geb Continuous casting molds for the continuous casting of refractory metals such as iron and steel, which essentially consist of copper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818981B2 (en) * 1980-06-06 1983-04-15 日本鉱業株式会社 Copper alloy for lead material of semiconductor equipment
JPS58104148A (en) * 1981-12-14 1983-06-21 Furukawa Electric Co Ltd:The Copper alloy for lead material of semiconductor apparatus
JPS60238432A (en) * 1984-12-27 1985-11-27 Mitsubishi Metal Corp Cu alloy for continuous casting mold

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2155405A (en) * 1938-04-28 1939-04-25 Chase Brass & Copper Co Electrical conductor
US2155408A (en) * 1938-04-28 1939-04-25 Chase Brass & Copper Co Copper base alloys
AT234930B (en) * 1960-02-25 1964-07-27 Boehler & Co Ag Geb Continuous casting molds for the continuous casting of refractory metals such as iron and steel, which essentially consist of copper

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Band 92, 1980, Seite 271, Zusammenfassungsnr. 133155a, Columbus, Ohio, US; T. USHIO et al.: "Mold for cntinuous casting"; JP - A - 79 124 831 (MISHIMA KOSAN) 28.09.1979 *
CHEMICAL ABSTRACTS, Band 92, 1980, Seite 271, Zusammenfassungsnr. 133155a, Columbus, Ohio, US; T. USHIO et al.: "Mold for continuous casting"; JP - A - 54 124 831 (MISHIMA KOSAN) 28.09.1979 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0305986A2 (en) * 1987-08-31 1989-03-08 Mitsubishi Materials Corporation Mold Member and Rapidly Solidifying Water Cooled Rotary Roll Member
EP0305986A3 (en) * 1987-08-31 1990-04-25 Mitsubishi Kinzoku Kabushiki Kaisha Mold member and rapidly solidifying water cooled rotary roll member
FR2751990A1 (en) * 1996-07-30 1998-02-06 Griset Ets COPPER-BASED ALLOY WITH HIGH ELECTRICAL CONDUCTIVITY AND SOFTENING TEMPERATURE FOR ELECTRONIC APPLICATIONS
US6149741A (en) * 1996-07-30 2000-11-21 Establissements Griset Copper-based alloy having a high electrical conductivity and a high softening temperature for application in electronics
KR100429109B1 (en) * 1996-07-30 2004-07-12 에타블리쉬망 그리제 Electronic circuit component paper zone with good electrical conductivity and high softening temperature and manufacturing method thereof
EP1170074A1 (en) * 2000-07-07 2002-01-09 KM Europa Metal AG Use of a copper-nickel alloy

Also Published As

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FI872327A0 (en) 1987-05-26
FI82893B (en) 1991-01-31
JPS6324028A (en) 1988-02-01
MX170389B (en) 1993-08-19
DE3760850D1 (en) 1989-11-30
KR920007884B1 (en) 1992-09-18
EP0249740B1 (en) 1989-10-25
ZA874022B (en) 1987-12-04
FI872327A (en) 1987-12-21
KR880000609A (en) 1988-03-28
EP0249740A3 (en) 1988-04-20
JP2540161B2 (en) 1996-10-02
FI82893C (en) 1991-05-10
ES2011467B3 (en) 1990-01-16

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