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A kind of copper alloy material and its preparation method and application

A copper alloy and alloy technology, applied in the field of copper alloy materials and their preparation, can solve problems such as difficulty in comprehensive performance of materials

Active Publication Date: 2022-03-29
NINGBO XINGYE SHENGTAI GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the field of copper alloy processing, there are generally contradictory relationships between electrical conductivity, bending performance and strength, and it is very difficult to improve the comprehensive properties of materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The present invention also provides a preparation method for the copper alloy material described in the above technical solution, comprising the following steps:

[0038] According to the chemical composition of the copper alloy material described in the above technical scheme, batching is carried out to obtain the alloy raw material;

[0039] Smelting and casting the alloy raw materials in sequence to obtain an alloy billet;

[0040] The alloy cast slab is sequentially subjected to hot rolling, primary cold rolling, solution treatment, secondary cold rolling, primary aging treatment, triple cold rolling and secondary aging treatment to obtain a copper alloy material.

[0041] The present invention carries out batching according to the chemical composition of the copper alloy material described in the above technical solution to obtain the alloy raw material. In the present invention, the alloy raw materials preferably include electrolytic copper, copper-chromium maste...

Embodiment 1

[0058] The copper alloy material provided in this embodiment is smelted using the following raw materials: electrolytic copper, copper-chromium master alloy, pure tin, pure zinc, copper-titanium master alloy, copper-silicon master alloy, copper-manganese master alloy and copper-lanthanum master alloy, copper alloy material The chemical composition is shown in Table 1.

[0059] (1) Smelting and casting: before smelting, add electrolytic copper in the medium frequency induction furnace, after melting, add copper-chromium master alloy, pure tin, pure zinc and copper-silicon master alloy, after the above materials are melted, continue to add Copper-manganese, copper-lanthanum and copper-titanium three kinds of master alloys, use the composite covering agent and then add burning charcoal, raise the temperature to 1250 ℃, after the melt is completely melted, introduce argon gas, and then stir evenly, the casting temperature Controlled at 1180°C, heat preservation for 20 minutes, the...

Embodiment 2

[0069]The copper alloy material provided in this example is smelted using the following raw materials: electrolytic copper, copper-chromium master alloy, pure tin, pure zinc, copper-silicon master alloy, copper-manganese master alloy and copper-lanthanum master alloy. The chemical composition of the copper alloy material is shown in the table 1.

[0070] (1) Smelting and casting: before smelting, add electrolytic copper in the medium frequency induction furnace, after melting, add copper-chromium master alloy, pure tin, pure zinc and copper-silicon master alloy, after the above materials are melted, continue to add Copper-manganese and copper-lanthanum two master alloys, use composite covering agent and then add burning charcoal, raise the temperature to 1300°C, after the melt is completely melted, pass in argon gas, and then stir evenly, the casting temperature is controlled at 1230°C ℃, after holding for 20 minutes, carry out semi-continuous casting to 190mm×620mm×length of ...

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PUM

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Abstract

The invention provides a copper alloy material, a preparation method and application thereof, and relates to the technical field of alloy materials. The copper alloy material provided by the present invention, in terms of mass percentage, has a chemical composition comprising: Ni+Co 0.8~3.0%, Sn 0.7~3.2%, Si 0.05~0.3%, P 0.03~0.15%, Ti 0.01~1.0%, remainder The amount is Cu. The invention obtains the copper alloy material with excellent comprehensive performance through the synergistic effect of each element and strictly controls the element content. Example results show that the tensile strength σ of the copper alloy material provided by the invention b ≥550MPa, plastic elongation δ≥5%, electrical conductivity ≥40%IACS, when 90 ° strip longitudinal direction R / t value≤1.5, the surface of the strip does not crack, which shows that the copper alloy material provided by the present invention has relatively high High strength, electrical conductivity and bending properties.

Description

technical field [0001] The invention relates to the technical field of alloy materials, in particular to a copper alloy material and its preparation method and application. Background technique [0002] With the rapid development of national economic construction, my country's new electronic products have entered the renewal stage of the 20-30-year use cycle, and many products and parts are facing the problem of resource recycling, such as the plating of brass products after processing parts. Tin nickel plating can be used for tin brass and complex brass, nickel-plated tin products in phosphor bronze can be used for phosphor bronze and Cu-Sn-Ni-P alloy, etc., tin-plated copper can be used for phosphor bronze and For nickel-plated and tin-plated high-performance Cu-Ni-Si alloys, there is no market for industrialized production and is facing the challenge of marketization. At the same time, my country has introduced three hot-dip tinning production lines, all of which are curre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C9/06C22C9/02C22F1/08H01L23/48H01L23/495H01L23/498H01L23/52
CPCC22C9/00C22C9/06C22C9/02C22F1/08H01L23/48H01L23/49582H01L23/49866H01L23/52
Inventor 刘峰陈建华马吉苗胡明烈熊玮轩王磊谢凯璇门宇航
Owner NINGBO XINGYE SHENGTAI GROUP
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