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Electrodeposition silver layer copper alloy/titanium alloy heterogeneous bimetallic connection method

A bimetallic connection, titanium alloy technology, applied in the direction of improving process efficiency, can solve the problems of low connection strength and poor interface bonding, and achieve the effect of high interface bonding strength, filling holes, and high flexibility

Pending Publication Date: 2022-08-09
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for electrodeposited silver layer copper alloy / titanium alloy heterogeneous bimetallic connection, which breaks the limitation of component structure requirements when adding intermediate transition layer copper alloy / titanium alloy bimetallic connection at present , which solves the problems of low connection strength and poor interface bonding existing in existing connection methods

Method used

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  • Electrodeposition silver layer copper alloy/titanium alloy heterogeneous bimetallic connection method
  • Electrodeposition silver layer copper alloy/titanium alloy heterogeneous bimetallic connection method
  • Electrodeposition silver layer copper alloy/titanium alloy heterogeneous bimetallic connection method

Examples

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Effect test

Embodiment 1

[0032] To prepare aluminum bronze / titanium alloy bimetal, aluminum bronze with grade QAl10-5-5 (hereinafter referred to as QAl10-5-5) and titanium alloy with trademark TC6 (hereinafter referred to as TC6) are processed into a Φ20mm×25mm cylinder. Mechanical grinding of QAl10-5-5 and TC6, ultrasonic cleaning in the order of deionized water, absolute ethanol, acetone, and deionized water, followed by pickling, soaking in 10% nitric alcohol for 30s, and then using The pretreated QAl10-5-5 and TC6 were obtained by cleaning with absolute ethanol for 5 min, and the TC6 was dried and stored for later use.

[0033] The pretreated QAl10-5-5 is electrodeposited. The specific process parameters are: the electrodeposition temperature is room temperature of 25°C, the pH value of the electrodeposition solution is 4.5, the current intensity is 0.5A, and the electrodeposition time is 25min. The silver layer thickness is 15 μm. It is post-processed, dried and stored for later use.

[0034] P...

Embodiment 2

[0036]To prepare aluminum bronze / titanium alloy bimetal, aluminum bronze with grade QAl10-5-5 (hereinafter referred to as QAl10-5-5) and titanium alloy with trademark TC6 (hereinafter referred to as TC6) are processed into a Φ20mm×25mm cylinder. Mechanical grinding of QAl10-5-5 and TC6, ultrasonic cleaning in the order of deionized water, absolute ethanol, acetone, and deionized water, followed by pickling, soaking in 10% nitric alcohol for 30s, and then using The pretreated QAl10-5-5 and TC6 were obtained by cleaning with absolute ethanol for 5 min, and the TC6 was dried and stored for later use.

[0037] The pretreated QAl10-5-5 was electrodeposited, and the specific process parameters were: the electrodeposition temperature was room temperature 25°C, the pH value of the electrodeposition solution was 4.3, the current intensity was 0.5A, and the electrodeposition time was 25min. The silver layer thickness is 15 μm. It is post-processed, dried and stored for later use.

[0...

Embodiment 3

[0040] To prepare aluminum bronze / titanium alloy bimetal, aluminum bronze with grade QAl10-5-5 (hereinafter referred to as QAl10-5-5) and titanium alloy with trademark TC6 (hereinafter referred to as TC6) are processed into a Φ20mm×25mm cylinder. Mechanical grinding of QAl10-5-5 and TC6, ultrasonic cleaning in the order of deionized water, absolute ethanol, acetone, and deionized water, followed by pickling, soaking in 10% nitric alcohol for 30s, and then using The pretreated QAl10-5-5 and TC6 were obtained by cleaning with absolute ethanol for 5 min, and the TC6 was dried and stored for later use.

[0041] The pretreated QAl10-5-5 is electrodeposited. The specific process parameters are: the electrodeposition temperature is room temperature of 25°C, the pH value of the electrodeposition solution is 4.6, the current intensity is 0.5A, and the electrodeposition time is 25min. The silver layer thickness is 15 μm. It is post-processed, dried and stored for later use.

[0042] P...

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Abstract

The invention discloses an electro-deposition silver layer copper alloy / titanium alloy heterogeneous bimetal connection method which specifically comprises the following steps: step 1, processing an aluminum bronze alloy and a titanium alloy into cylinders, polishing the cylinders, and then carrying out ultrasonic cleaning; 2, the aluminum bronze alloy and the titanium alloy cleaned in the step 1 are subjected to acid pickling and then cleaned again, and the titanium alloy is dried and stored for use; 3, the aluminum bronze alloy obtained in the step 2 is subjected to electro-deposition, the aluminum bronze alloy with a deposited silver layer is obtained, post-treatment is conducted, and drying and storage are conducted for standby application; and 4, the aluminum bronze alloy and the titanium alloy are sequentially placed in a hot-pressing mold, the hot-pressing mold is placed in a vacuum hot-pressing sintering furnace for vacuum diffusion bonding, and the aluminum bronze / titanium alloy bimetallic sample is obtained. According to the method, the limitation of the requirement for the structure of a component when a middle transition layer is added for copper alloy / titanium alloy bimetallic connection at present is broken through, and the problems that an existing connection method is low in connection strength and poor in interface bonding are solved.

Description

technical field [0001] The invention belongs to the technical field of bimetal preparation, and relates to a method for electrodepositing a silver layer copper alloy / titanium alloy heterogeneous bimetal connection. Background technique [0002] Since the current high-pressure plunger pump with a rated pressure above 35MPa relies on imports, the high-pressure plunger pump has become a "stuck neck" problem for the innovative development of my country's aviation equipment. The high-pressure plunger pump has a complex service environment and strict requirements for use. The use of light / wear-resistant / high-strength copper alloy / titanium alloy bimetallic materials is expected to solve the problem. [0003] At present, the connection strength of copper alloy / titanium alloy bimetallic materials is generally low, and high-quality connection can be achieved by adding an intermediate transition layer. The high-pressure plunger pump cylinder has a porous structure and complex shape, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/34C25D5/50
CPCC25D5/34C25D5/50Y02P10/20
Inventor 孙利星张容焱杨倩姜琪王宁邹军涛梁淑华
Owner XIAN UNIV OF TECH
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