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Short-process continuous preparation method of high-performance copper-chromium alloy wire rod

A copper-chromium-based wire and high-performance technology, which is applied in the field of short-process continuous preparation of high-performance copper-chromium-based alloy wire, can solve the problems of long route, low production efficiency of alloy wire, and many process passes, and achieves increased production. The effect of large cooling intensity, improving production efficiency and saving energy consumption

Active Publication Date: 2019-12-27
GRIMAT ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since copper-chromium alloys are solid solution aging-strengthened alloys, the improvement of their comprehensive performance comes from the alloy undergoing solution aging treatment. Therefore, in order to obtain high-performance copper-chromium alloy wires, it is necessary to continuously cast upward High-performance copper-chromium wire rods can only be obtained by cold rolling, solution treatment, acid and multi-stage aging treatment processes for the rods. There are many process passes and long routes, and the production efficiency of alloy wire rods is low.

Method used

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  • Short-process continuous preparation method of high-performance copper-chromium alloy wire rod
  • Short-process continuous preparation method of high-performance copper-chromium alloy wire rod
  • Short-process continuous preparation method of high-performance copper-chromium alloy wire rod

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Effect test

Embodiment 1

[0021] The alloy of the invention is smelted using the following raw materials: electrolytic copper, pure chromium, copper-zirconium master alloy, sponge titanium and copper-lanthanum master alloy. The composition of the alloy is shown in Example 1 of Table 1.

[0022] 1. Melting and casting: Add electrolytic copper and pure chromium into a non-vacuum power frequency induction furnace. After the above materials are melted, pass high-purity argon for protection, and then add copper-zirconium master alloy, sponge titanium and copper-lanthanum intermediate For the alloy, raise the temperature to 1300°C. After the melt is completely melted, stir evenly. The casting temperature is controlled at 1250°C. After holding for 20 minutes, continuous upward casting is carried out. The pitch is 1mm, the stop time is 0.30s, and the pulling time is is 0.20s, the stop-pull time ratio is 1.5, and the lifting speed is 300mm / min, cast into a copper rod with a diameter of 18mm.

[0023] 2. Contin...

Embodiment 2

[0030] The alloy of the invention is smelted using the following raw materials: electrolytic copper, pure chromium, copper-zirconium master alloy, sponge titanium and copper-lanthanum master alloy. The composition of the alloy is shown in Example 2 of Table 1.

[0031] 1. Melting and casting: Add electrolytic copper and pure chromium into a non-vacuum power frequency induction furnace. After the above materials are melted, pass high-purity argon for protection, and then add copper-zirconium master alloy, sponge titanium and copper-lanthanum intermediate For the alloy, raise the temperature to 1350°C. After the melt is completely melted, stir evenly. The casting temperature is controlled at 1200°C. After 20 minutes of heat preservation, continuous casting is carried out. The pitch is 6mm, the stop time is 0.30s, and the pulling time is is 0.05s, the stop-pull time ratio is 6, and the lifting speed is 600mm / min, cast into a copper rod with a diameter of 20mm.

[0032] 2. Contin...

Embodiment 3

[0039] The alloy of the invention is smelted using the following raw materials: electrolytic copper, pure chromium, pure silver, sponge titanium and copper-cerium master alloy. The composition of the alloy is shown in Example 3 of Table 1.

[0040] 1. Melting and casting: Add electrolytic copper and pure chromium into a non-vacuum power frequency induction furnace. After the above materials are all melted, pass high-purity argon for protection, and then add pure silver, sponge titanium and copper-cerium intermediate alloy. Raise the temperature to 1320°C. After the melt is completely melted, stir evenly. The casting temperature is controlled at 1220°C. After holding for 20 minutes, continuous casting is carried out. The pitch is 3mm, the stop time is 0.15s, and the pulling time is 0.05 s, the stop-pull time ratio is 3, and the upward speed is 400mm / min, cast into a copper rod with a diameter of 18mm.

[0041] 2. Continuous extrusion: The above-mentioned alloy copper rod is su...

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Abstract

The invention relates to a short-process continuous preparation method of a high-performance copper-chromium alloy wire rod, and belongs to the field of non-ferrous metal processing. The method comprises the following steps of A, proportioning, feeding, smelting and casting according to the proportion of the copper-chromium alloy, the copper-chromium-based alloy is prepared from the following components of, in percentage by weight, 0.1%-0.6% of Cr, one or both of Zr, Ti, Ag, Mg, Sn, Fe, Si and Zn, the total content of the alloy element is 0.08%-0.4%, and the content of each alloy element is 0.05%-0. 2%, and the balance Cu; B, continuous extrusion; C, drawing; D, bell hood intermediate annealing; E, drawing; and F, on-line annealing process. According to the method, the high-temperature solid solution treatment and the multi-time aging treatment process in the traditional process are omitted, the continuous preparation of the short process is easy to realize, the requirement of high-endprecision cable on the large length of the filament wire can be met, the production process flow is shortened, and the production efficiency of the alloy material is improved.

Description

technical field [0001] The invention relates to a short-flow continuous preparation method of high-performance copper-chromium alloy wire, which belongs to the field of non-ferrous metal processing. Background technique [0002] Cu-Cr alloys have high strength, good electrical and thermal conductivity, good weldability, oxidation resistance, wear resistance and other excellent comprehensive properties, and have been widely used in lead frames of large-scale integrated circuits and large motors In the fields of overhead wires of vehicles, mold linings of continuous casting machines in heat exchange environments, resistance welding electrodes, and high-end cables for aerospace, it has become a structural and functional material in the field of high-strength and high-conductivity in the electronic circuit industry. [0003] Due to the chromium element that is easy to oxidize and segregate in copper-chromium alloys, the traditional preparation and processing methods of its alloy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C9/00C22F1/08B22D11/00B21C37/04
CPCB21C37/047B22D11/004C22C1/03C22C9/00C22F1/08
Inventor 黄国杰彭丽军解浩峰杨振冯雪张文婧米绪军尹向前
Owner GRIMAT ENG INST CO LTD
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