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Preparation method of copper alloy

A technology of copper alloy and weight percentage, which is applied in the field of copper alloy preparation, can solve problems such as difficulty in matching high strength and high conductivity, insufficient strength, etc., achieve good die-casting process performance, low cost, and improve the effect of alloy strength

Active Publication Date: 2017-03-15
NINGBO ZHANCI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent application with the application number 03135189.1 discloses a non-silver-containing rare earth copper-tellurium high-conductivity alloy material. Its disadvantage is that it is difficult to achieve high strength and high conductivity matching, especially when the conductivity reaches 94.5% IACS, the strength is obvious. Insufficient, only about 330MPa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Weigh 0.05% lead, 0.7% iron, 0.04% magnesium, 0.4% chromium and 0.55% zirconium according to weight percentage, and the rest is copper.

[0028] The components are mixed and smelted at 1200-1350°C, poured into the ladle after melting, and then poured into the crystallization wheel from the ladle to form a slab, and the slab is hot forged at a temperature of 800-950°C for 12 One pass of hot rolling with a reduction rate of 75% to obtain hot-rolled materials; the hot-rolled materials are subjected to solution treatment at a temperature of 850-950°C and the holding time is 1-2 hours, and then quenched in water to obtain cold materials ; Then carry out 20-40% cold rolling treatment on the cold material, and finally carry out pickling to remove the oxide on the surface. That is, the copper alloy material for the wire was obtained, the electrical conductivity reached 91% IACS, the elongation was 12%, and the tensile strength was 630 MPa.

Embodiment 2

[0029] Example 2: Weigh 0.05% lead, 0.7% iron, 0.04% magnesium, 0.45% chromium and 0.62% zirconium according to the weight percentage, and the rest is copper. The components are mixed and melted at 1200-1350°C, and poured into the ladle after melting , and then poured into the crystallization wheel from the ladle to form a slab, and the slab is hot-forged at a temperature of 800-950°C, and hot-rolled for 12 passes, with a reduction rate of 75%, to obtain a hot-rolled Material; solid solution treatment is carried out on the hot-rolled material, the temperature is 850-950°C, the holding time is 1-2h, and then quenched in water to obtain cold material; then the cold material is subjected to 20-40% cold rolling treatment, and finally Pickling is carried out to remove surface oxides. That is to say, a copper alloy material for wire is obtained, the electrical conductivity reaches 93% IACS, the elongation is 17%, and the tensile strength is 655 MPa.

Embodiment 3

[0030] Example 3: Weigh 0.05% lead, 0.7% iron, 0.04% magnesium, 0.5% chromium and 0.70% zirconium according to the weight percentage, and the rest is copper. The components are mixed and smelted at 1200-1350°C, and poured into the ladle after melting , and then poured into the crystallization wheel from the ladle to form a slab, and the slab is hot-forged at a temperature of 800-950°C, and hot-rolled for 12 passes, with a reduction rate of 75%, to obtain a hot-rolled Material; solid solution treatment is carried out on the hot-rolled material, the temperature is 850-950°C, the holding time is 1-2h, and then quenched in water to obtain cold material; then the cold material is subjected to 20-40% cold rolling treatment, and finally Pickling is carried out to remove surface oxides. That is to say, the copper alloy material for the wire is obtained, the electrical conductivity reaches 95% IACS, the elongation is 20%, and the tensile strength is 620 MPa.

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Abstract

The invention discloses a preparation method of a copper alloy and belongs to the technical field of copper alloy preparation. The copper alloy contains the following components in percentage by weight: 0.05% of Pb, 0.7% of Fe, 0.04% of Mg, 0.4-0.5% of Cr, 0.55-0.70% of Zr and Cu in balancing amount. According to the method, the copper alloy is prepared by performing mixed melting, ingot casting, hot rolling, solid solution, cold rolling and pickling treatment of the components in percentage by weight. The electric conductivity of the copper alloy is 91-95% IACS, the elongation of the copper alloy is 12-20%, and the tensile strength of the copper alloy is 620-655 MPa. The copper alloy can well meet the performance requirements of copper alloy materials for wires in the field of electronic industry and can also be used in fields where high-conductivity high-elongation copper alloy materials are required. The preparation method has the advantages of simple process and low cost.

Description

[0001] The patent application of the present invention is a divisional application with the application number: 2014106299394. The filing date of the original application is: 2014-11-11. The name of the invention is: a copper alloy for high-strength and high-conductivity wire and its preparation method. technical field [0002] The invention belongs to the technical field of copper alloy preparation, and more specifically relates to a preparation method of copper alloy. Background technique [0003] Multi-component composite microalloying technology is a research hotspot of high-performance copper alloy materials. Copper wire alloy materials require high electrical conductivity, high strength requirements and good elongation. The Chinese patent application with the application number 02133772.1 discloses a copper alloy material for catenary wires. This copper alloy material contains tellurium, lithium and magnesium, which improves the strength of the copper alloy, but the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22F1/08H01B1/02
CPCH01L2224/45147H01L2924/01012H01L2924/01024H01L2924/01026H01L2924/0104H01L2924/01082C22C9/00C22F1/08H01B1/026
Inventor 颜承龙
Owner NINGBO ZHANCI NEW MATERIAL TECH CO LTD
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