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High-strength and high-conductivity Cu-Cr-Ti alloy conductor and manufacturing method thereof

A cu-cr-ti, alloy wire technology, applied in metal/alloy conductors, cable/conductor manufacturing, chemical instruments and methods, etc., can solve the problem that the strength and electrical conductivity of copper alloy wires cannot be balanced, and achieve good economic benefits , Overcome the contradictions, the effect of excellent plastic deformation ability

Inactive Publication Date: 2013-12-18
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies in the background technology, provide a continuous directional solidification Cu-Cr-Ti alloy wire and its preparation method, solve the problem that the strength and conductivity of the conventionally prepared copper alloy wire cannot be balanced, and develop a new type High-strength and high-conductivity copper alloy wire and its directional solidification preparation method, the method is simple in process, the prepared wire has continuous columnar crystal structure or single crystal structure, high thermal stability, firm phase interface combination, high strength, good conductivity, etc. Fully meet the requirements for strength and electrical conductivity

Method used

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  • High-strength and high-conductivity Cu-Cr-Ti alloy conductor and manufacturing method thereof

Examples

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example 1

[0019] Using 99.99% cathode copper and 99.99% chromium and titanium as raw materials, wherein the percentage of chromium in the total weight is 8%, the percentage of titanium in the total weight is 0.3%, and the chromium is added in the form of Cu-25wt%Cr master alloy, Titanium is added in the form of Cu-25wt%Ti master alloy, placed in a directional solidification furnace, and melted at 1350 °C. Directional solidification casting is performed when the melt temperature is lowered to 1250°C, the vacuum degree of the directional solidification system is set to 0.15Pa, the casting speed is 15mm / min, the cooling water volume is 100L / h, the cooling water temperature is 22°C, and a diameter of 8mm is prepared. Cu-Cr-Ti alloy rod. After the alloy rod is cold-worked or drawn, a wire rod with a diameter of 3 mm is prepared, and the processed wire rod is annealed at a temperature of 450° C. and a holding time of 20 minutes. The annealed wire rod was rolled and deformed to prepare a wire...

example 2

[0021] 99.99% cathode copper and 99.99% chromium and titanium are used as raw materials, wherein the percentage of chromium in the total weight is 10%, the percentage of titanium in the total weight is 0.5%, and the chromium is added in the form of Cu-25wt%Cr master alloy, Titanium is added in the form of Cu-25wt%Ti master alloy, placed in a directional solidification furnace, and melted at 1380 °C. Directional solidification casting is performed when the melt temperature is lowered to 1250°C, the vacuum degree of the directional solidification system is set to 0.15Pa, the casting speed is 20mm / min, the cooling water volume is 120L / h, the cooling water temperature is 20°C, and the diameter is 8mm. Cu-Cr-Ti alloy rod. After the alloy rod is cold-worked or drawn, a wire rod with a diameter of 3 mm is prepared, and the processed wire rod is annealed at a temperature of 480° C. and a holding time of 30 minutes. The annealed wire rod was rolled and deformed to prepare a wire with ...

example 3

[0023] Using 99.99% cathode copper and 99.99% chromium and titanium as raw materials, wherein the percentage of chromium in the total weight is 10%, the percentage of titanium in the total weight is 0.8%, and the chromium is added in the form of Cu-25wt%Cr master alloy, Titanium is added in the form of Cu-25wt%Ti master alloy, placed in a directional solidification furnace, and melted at 1380 °C. The directional solidification casting is carried out when the melt temperature is lowered to 1250°C, the vacuum degree of the directional solidification system is set to 0.15Pa, the casting speed is 20mm / min, the cooling water volume is 150L / h, the cooling water temperature is 25°C, and the diameter is 8mm. Cu-Cr-Ti alloy rod. After the alloy rod is cold-worked or drawn, a wire rod with a diameter of 3 mm is prepared, and the processed wire rod is annealed at a temperature of 500° C. and a holding time of 30 minutes. The annealed wire rod was rolled and deformed to prepare a wire wi...

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Abstract

The invention relates to a high-strength and high-conductivity Cu-Cr-Ti alloy conductor and a manufacturing method of the high-strength and high-conductivity Cu-Cr-Ti alloy conductor. Alloy is made from the following chemical components: 8.0-15% of Cr, 0.0-3.0% of Ti, 0.1% or less than 0.1% of impurities and the balance of copper; an alloy pole stock with the diameter of 8-12mm is manufactured by using a continuous directional solidification system through casting; a Cu-Cr-Ti alloy wire rod with the diameter of 1-2mm is manufactured through the processes of cold drawing deformation-heat treatment-rolling deformation and the like. The high-strength and high-conductivity Cu-Cr-Ti alloy conductor manufactured in the method is of a continuous columnar crystal structure or monocrystal structure, overcomes the defect of mutual contradiction of high strength and high conductivity, and has broad application prospects and good economic benefits.

Description

technical field [0001] The invention belongs to the technical field of preparation of new non-ferrous metal materials, and in particular relates to a high-strength and high-conductivity copper alloy wire and a preparation method thereof. Background technique [0002] High-strength and high-conductivity copper alloy is a class of structural functional materials with excellent comprehensive physical and mechanical properties. It has high strength, good plasticity, and excellent electrical conductivity. Germany, Japan, and France have made significant progress in the research and application of high-strength and high-conductivity copper alloys. The high-strength and high-conductivity copper alloys that have been developed include Cu-Cr, Cu-Zr, Cu-Cr-Zr, Cu-Sn, Cu -Cd, Cu-Ni-Si, Cu-Fe, Cu-Ag, Cu-Nb series and copper-based composite materials. When developing high-strength and high-conductivity copper alloys, the primary contradiction encountered is that it is difficult to balan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/02H01B13/00B22D27/04B22D27/15C22C9/00C30B29/52C30B11/00
Inventor 李勇张建波柳瑞清郑碰菊许方武淑珍
Owner JIANGXI UNIV OF SCI & TECH
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