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Short-process efficient production method of copper-sliver alloy wire

A technology of copper-silver alloy and production method, which is applied in the field of short-process preparation of fine copper-silver alloy wire, can solve the problems that product quality and performance are difficult to meet use requirements, high production cost, long process flow, etc., and achieves improvement of material utilization rate , the effect of high production efficiency and high surface quality

Inactive Publication Date: 2015-08-05
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of long technological process, high energy consumption, low yield, high production cost, difficult to meet the use requirements and other problems of the existing production method of copper-silver alloy wire, and to efficiently produce high-quality copper-silver alloy Wire rod, improve yield, reduce production cost, improve product quality and performance, provide a short-process and high-efficiency production method of copper-silver alloy wire rod using warm-type continuous casting method combined with specific forming process and annealing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The copper-silver 2 alloy wire billet was prepared by the draw-down temperature continuous casting method. The melt temperature of the draw-down temperature continuous casting was 1200°C, the low heat mold temperature was 700°C, the cooling water flow rate was 600L / h, and the casting speed was 200mm / min. Under the following conditions, a copper-silver 2 alloy wire billet with a columnar grain structure with a high degree of orientation along the length direction and a diameter of 10 mm was prepared; the copper-silver alloy wire billet with a diameter of 1.3 mm was obtained by drawing 12 times of rough drawing at room temperature. 2 alloy wire; apply 1 intermediate annealing process, the annealing process is 200 ° C × 180 min; and then finely drawn to a copper-silver 2 alloy wire with a diameter of 40 μm.

Embodiment 2

[0018] The copper-silver 2 alloy wire billet was prepared by the draw-down temperature continuous casting method. The melt temperature of the draw-down temperature continuous casting was 1250°C, the low-heat mold temperature was 800°C, the cooling water flow rate was 400L / h, and the casting speed was 100mm / min. Under the following conditions, a copper-silver 2 alloy wire blank with a diameter of 10 mm and a columnar grain structure with a high degree of orientation along the length direction was prepared; the copper-silver alloy wire billet with a diameter of 2.6 mm was obtained by drawing 8 times of rough drawing at room temperature. 2 alloy wire; apply 1 intermediate annealing process, the annealing process is 250 ° C × 120 min; and then finely drawn to a copper-silver 2 alloy wire with a diameter of 30 μm.

Embodiment 3

[0020] The copper-silver 2 alloy wire billet was prepared by the draw-down temperature continuous casting method. The melt temperature of the draw-down temperature continuous casting was 1150°C, the low-heat mold temperature was 900°C, the cooling water flow rate was 500L / h, and the casting speed was 150mm / min. Under the following conditions, a copper-silver 2 alloy wire blank with a diameter of 10 mm and a columnar grain structure with a high degree of orientation along the length direction was prepared; the copper-silver alloy wire billet with a diameter of 1.8 mm was obtained by drawing 10 times of rough drawing at room temperature. 2 alloy wire; apply 1 intermediate annealing, the annealing process is 220 ° C × 150 min; and then finely drawn to a copper-silver 2 alloy wire with a diameter of 50 μm.

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Abstract

The invention relates to a short-process efficient production method of a copper-sliver alloy wire, and belongs to the technical field of metal material preparation. The production method is characterized in that a warm type continuous casting method is used to prepare a copper-sliver alloy wire billet with a columnar crystal structure having the high orientation degree along a length direction and a diameter of 1-30 mm, wherein the billet drawing speed of the warm type continuous casting is 1-600 mm / min; and at a room temperature or 20-50 DEG C below the wire billet re-crystallization temperature, the wire billet is subjected to rolling or rough drawing, and then fine drawing is performed to obtain the wire with a diameter of 10-50 [mu]m. The production method of the present invention has the following advantages that: the warm type continuous casting method is used to prepare the copper-sliver alloy wire billet having the columnar crystal structure having the high axial orientation degree, the cold processing extending deformation capability is excellent, the pull-off is not easily generated during the wire drawing process, the intermediate annealing step even can be eliminated, the process is short, the material utilization rate is high, the energy source is saved, the production efficiency is high, the cost is low, and the wire quality and the wire performance are excellent.

Description

technical field [0001] The invention belongs to the technical field of metal material preparation, and in particular relates to a short-flow and high-efficiency production method for copper-silver alloy wires, in particular to a short-flow preparation method for fine copper-silver alloy wires. technical background [0002] Copper-silver alloy is a copper-based binary alloy containing silver (generally, the mass percentage of silver is 0.02% to 30%). It has excellent properties such as good electrical conductivity, high strength and high softening temperature. Metal functional materials are widely used in the fields of aerospace, transportation machinery, national defense and military industry, and daily life, and their wire products are widely used as rotor wires for large high-speed turbine generators, contact wires for high-speed trains, signal transmission lines for cutting-edge digital communication equipment, high-fidelity Wires, ultra-high magnetic field water-cooled w...

Claims

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Application Information

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IPC IPC(8): C22F1/08
Inventor 刘雪峰伍伟玉时来鑫蔺佳伟罗继辉程长飞张强赵慧敏谢建新
Owner UNIV OF SCI & TECH BEIJING
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