Preparation method of beryllium copper alloy sheet material

A thin plate material, beryllium copper alloy technology, applied in metal material coating process, vacuum evaporation plating, coating, etc., can solve the problems of low production efficiency, beryllium metal polluting the environment, and the technical difficulty of rolling beryllium copper alloy, etc. , to achieve the effects of high work efficiency, high product yield and low manufacturing cost

Active Publication Date: 2019-01-22
江苏华力金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the technical difficulty of rolling beryllium copper alloy is high, and the yield and production efficiency are low.
Moreover, beryllium copper alloys are smelted in an atmospheric environment, and there are disadvantages such as beryllium metal polluting the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: The preparation method of beryllium-copper alloy sheet material comprises the following steps:

[0017] (1) Cleaning of the substrate: Select a pure copper strip with a thickness of 0.15mm as the substrate. In order to remove oil stains, first clean it with 3.5% sodium carbonate lye for 15 minutes at a temperature of 65°C; Wash in 3.5% dilute sulfuric acid for 15 minutes; then put the substrate into acetone solution, ethanol solution and deionized water for 25 minutes, so as to improve the surface activity of the substrate, and dry it for use;

[0018] (2) Target selection: select a pure Be target or a beryllium copper 60wt.% Be alloy target with high beryllium content, put the target into a water-cooled crucible for use;

[0019] (3) Preparation of cladding sheet: Install the pure copper strip substrate treated in step (1) on the substrate stage of the electron beam evaporator, and then place the pure Be target material or high beryllium content beryllium...

Embodiment 2

[0020] Embodiment 2: the preparation method of beryllium copper alloy sheet material, comprises the steps:

[0021] (1) Cleaning of the substrate: Select a pure copper strip with a thickness of 0.2mm as the substrate. In order to remove oil stains, first clean it with 4.5% sodium carbonate lye for 10 minutes at a temperature of 75°C; Wash in 4.5% dilute sulfuric acid for 10 minutes; then put the substrate into acetone solution, ethanol solution and deionized water for 35 minutes, so as to improve the surface activity of the substrate, and dry it for use;

[0022] (2) Select target material: select pure Be target material or beryllium copper 70wt.% Be alloy target material with high beryllium content, put the target material into a water-cooled crucible, and set aside;

[0023] (3) Preparation of cladding sheet: Install the pure copper strip substrate treated in step (1) on the substrate stage of the electron beam evaporator, and then place the pure Be target material or high b...

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Abstract

The invention relates to a preparation method for a beryllium-copper alloy sheet material. The preparation method includes the following steps that (1) a substrate is cleaned, specifically, oil stains and scale cinder are removed in order to improve the surface activity of the substrate, and the substrate is aired to be prepared for use; (2) a target material is selected; (3) a cladding sheet is prepared; (4) diffusion solid solution is carried out, specifically, the film-cladding copper belt substrate prepared in the step (3) is subjected to diffusion treatment at the temperature of 700-800 DEG C for 15-40 min, and then the cladding beryllium-copper alloy sheet material uniform in section component distribution is obtained. The preparation method for the beryllium-copper alloy sheet material is high in deposition rate, controllable in quality and high in work efficiency. The preparation process is conducted under a full-vacuum condition, the problems of beryllium element oxidation, environmental pollution, harm to human body safety and the like are avoided, and the preparation method is suitable for industrial popularization.

Description

technical field [0001] The invention relates to the preparation of an alloy material, in particular to a preparation method of a beryllium-copper alloy sheet material. Background technique [0002] Beryllium-copper alloy is a typical precipitation-strengthened alloy, which has a series of advantages such as high elasticity, high strength, high conductivity, corrosion resistance, fatigue resistance, small elastic hysteresis, non-magnetism, and no sparks during impact. It is widely used It is used in aerospace, aviation, electronics, communication, machinery, petroleum, chemical industry, automobile and home appliance industries, and has broad application prospects. [0003] At present, beryllium-copper alloy sheets and strips are basically prepared by rolling method, mainly including semi-continuous casting ingot + milling skin + heating + rough rolling + quenching + secondary rolling + quenching + pickling + brushing + finishing rolling, etc. process. Because the beryllium...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/30C23C14/16C23C14/02C23C14/58
CPCC23C14/021C23C14/16C23C14/30C23C14/5806
Inventor 李铮李鲁
Owner 江苏华力金属材料有限公司
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