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-qu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1:

[0016] The copper-silver 2 alloy wire billet is prepared by the down-draw temperature continuous casting method. The melt temperature of the down-draw temperature continuous casting is 1200℃, the low heat casting temperature is 700℃, the cooling water flow rate is 600L / h, and the drawing speed is 200mm / min. Next, a copper-silver 2 alloy wire blank with a diameter of 10mm and a columnar crystal structure with a high degree of orientation along the length direction was prepared; using the drawing method, 12 passes of rough drawing at room temperature were used to obtain copper-silver with a diameter of 1.3mm 2 alloy wire; apply 1 intermediate annealing, the annealing process is 200 ℃ × 180min; and then finely draw the copper silver 2 alloy wire with a diameter of 40 μm.

Example Embodiment

[0017] Example 2:

[0018] The copper-silver 2 alloy wire billet is prepared by the down-draw temperature continuous casting method, and the melt temperature of the down-draw temperature continuous casting is 1250℃, the low heat casting temperature is 800℃, the cooling water flow rate is 400L / h, and the drawing speed is 100mm / min. Next, a copper-silver 2 alloy wire blank with a diameter of 10mm and a columnar crystal structure with a high degree of orientation along the length direction was prepared; the drawing method was used for 8 passes at room temperature to obtain copper-silver with a diameter of 2.6mm 2 alloy wire; apply 1 intermediate annealing, the annealing process is 250 ℃ × 120min; and then fine-drawn to a copper-silver 2 alloy wire with a diameter of 30 μm.

Example Embodiment

[0019] Example 3:

[0020] The copper-silver 2 alloy wire billet is prepared by the down-temperature continuous casting method. The melt temperature of the down-temperature continuous casting is 1150℃, the low heat casting temperature is 900℃, the cooling water flow rate is 500L / h, and the drawing speed is 150mm / min. Next, a copper-silver 2 alloy wire blank with a diameter of 10mm and a columnar crystal structure with a high degree of orientation along the length direction was prepared; the drawing method was used to pass 10 passes of rough drawing at room temperature to obtain a copper-silver with a diameter of 1.8mm 2 alloy wire; apply 1 intermediate annealing, the annealing process is 220 ℃ × 150min; and then fine-drawn to a copper-silver 2 alloy wire with a diameter of 50 μm.

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PUM

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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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