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High strength, high electroconductive copper alloy material and preparation tech. thereof

A technology for preparation process and alloy material, applied in the field of copper alloy material and its preparation process

Inactive Publication Date: 2007-07-18
焦作市森格高新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the conflicting problem of high strength and high conductivity in current copper-based alloy materials, the purpose of the present invention is to provide a high-strength alloy that not only improves the alloy structure, but also improves the alloy elements, so that the strength and conductivity of the alloy material can be simultaneously improved. Strength, high conductivity copper alloy material and its preparation process

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  • High strength, high electroconductive copper alloy material and preparation tech. thereof

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Embodiment 1

[0030] The continuous directionally solidified Be-Ag-Cu alloy rods are prepared on the horizontal drawing hot-type continuous casting equipment. The specific preparation process is as follows:

[0031] ① Melt high-purity copper with a purity of 99%, then raise the temperature to 1120°C, and refine for 25 minutes. The entire melting process is protected by 99.9% pure argon;

[0032] ②According to the composition requirements and theoretical burning loss, add a certain amount of Be-Cu master alloy and Ag-Cu master alloy, so that the content of Be is 0.06wt%, Ag0.08wt%, and the balance of Cu; the master alloy is baked before adding Dry treatment, the drying temperature is 200°C, the drying time is 2 hours, and the oxide layer on the surface is removed; after adding, the argon gas is used to fully boil the copper alloy melt to ensure the uniform structure of the alloy;

[0033] ③ The specific process parameters for drawing Be-Ag-Cu alloy rods by means of continuous directional sol...

Embodiment 2

[0036] ① Melt high-purity copper with a purity of 99.9%, and then heat up to 1160°C to 1200°C for 20 minutes of refining. The entire melting process is protected by 99.9% high-purity argon;

[0037] ②According to the composition requirements and theoretical burning loss, add a certain amount of Be-Cu master alloy and Ag-Cu master alloy, so that the content of Be is 0.09wt%, Ag0.12wt%, and the balance of Cu. Dry and treat the intermediate alloy before adding, the treatment temperature is 250°C, the drying time is 1.5 hours, and remove the oxide layer on the surface; after adding, the copper alloy melt is fully boiled with argon gas to ensure the uniform structure of the alloy;

[0038] ③ The specific process parameters for drawing Be-Ag-Cu alloy rods by means of continuous directional solidification are: copper alloy melt temperature 1190°C, hot-type continuous casting equipment main furnace temperature 1170°C, horizontal lead pipe temperature 1130°C, mold mouth The temperature...

Embodiment 3

[0041] ① Melt high-purity copper with a purity of 99.9%, and then heat up to 1200°C for 15 minutes to refine. The entire melting process is protected by 99.9% high-purity argon;

[0042] ②According to the composition requirements and theoretical burning loss, add a certain amount of Be-Cu master alloy and Ag-Cu master alloy so that the content of Be is 0.12wt%, Ag0.15wt%, and the balance of Cu. Before adding, the master alloy is dried at a temperature of 300°C and the drying time is 1 hour, and the oxide layer on the surface is removed; after the addition, the copper alloy melt is fully boiled with argon gas to ensure a uniform alloy structure;

[0043] ③ The specific process parameters for drawing Be-Ag-Cu alloy rods by means of continuous directional solidification are: copper alloy melt temperature 1220°C, hot-type continuous casting equipment main furnace temperature 1200°C, horizontal lead pipe temperature 1160°C, mold mouth The temperature is 1160°C, the cooling water vo...

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Abstract

The present invention discloses one kind of high strength and high conductivity copper alloy material with continuous fiber structure and its preparation process. The copper alloy consists of Be 0.06-0.12 wt %, Ag 0.08-0.15 wt %, and Cu for the rest. The preparation process of the copper alloy includes the following steps: 1. smelting alloy at 1180-1200 deg.c; 2. continuous drawing for directional solidification; and 3. heat treatment at 700-750 deg.c. The copper alloy has homogeneous continuous fibrous crystal structure, cast-state strength up to 240 MPa, strength after machining up to 400 MPa and conductivity up to 86 % IACS. The alloy material may be used in high performance connector, electric switch, IC lead frame, etc.

Description

technical field [0001] The invention belongs to the technical field of alloy materials, and mainly relates to a copper alloy material with high strength and high electrical conductivity and a preparation process thereof. Background technique [0002] High strength and high electrical conductivity are a pair of contradictory properties, and copper alloy materials are no exception. At present, there are two ways of strengthening copper: one is to introduce a second strengthening phase to form a composite material; the other is to introduce alloying elements to strengthen the copper matrix to form an alloy. [0003] Copper-based composites can be divided into in-situ synthesized copper-based composites and ex-situ synthesized composites. In-situ synthesis of copper-based composites, also known as self-generated copper-based composites, refers to the addition of certain alloying elements or compounds to copper, and through some technological means, the in-situ generation of rei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00H01B1/02C22C1/03B22D11/16B22D21/00B22D27/04
Inventor 刘光林丁雨田曹军朱建庄李振京封存利邱鸿卫古思红介明山
Owner 焦作市森格高新材料有限责任公司
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