Device and method for preparing functional composite material under supercritical conditions

A functional composite material, supercritical technology, applied in the direction of electrolytic components, cells, electrolytic process, etc., can solve the problems of complicated process and harsh production conditions, and achieve the effect of expanding the scope of use, excellent structure and performance

Active Publication Date: 2019-05-17
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a device and method for preparing functional composite materials under supercritical conditions, so as to solve the problems of complex process and harsh production conditions in the prior art

Method used

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  • Device and method for preparing functional composite material under supercritical conditions
  • Device and method for preparing functional composite material under supercritical conditions
  • Device and method for preparing functional composite material under supercritical conditions

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Experimental program
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Effect test

Embodiment 1

[0038] combine Figure 1-6 , a device for preparing functional composite materials under supercritical conditions, comprising a reactor assembly 1, a base 2, a feed system 3 and an extraction system 4; the reactor assembly 1 includes a reactor body 11, a kettle cover 13 and a clamp 14; the base 2 includes a magnetic stirring device 21 and an external user interface 22 embedded in the base. The kettle cover 13 is provided with an air inlet and an air outlet 12 .

[0039] The feed system 3 includes a first liquid storage tank 35 arranged from bottom to top and communicated through a liquid inlet pipe 36 , a first electric valve 34 , a first high-pressure pump 31 , a first back pressure valve 32 and a first check valve. Valve 33; one end of the inlet pipe 36 is inserted into the bottom of the first liquid storage tank 35, and the other end is connected to the reaction kettle; the feeding system 1 also includes a first electric valve 34 and a first high-pressure pump 31 connected...

Embodiment 2

[0054] Adopt the device of embodiment 1, be used for precision, complex three-dimensional component processing, take the nickel layer as the base layer on the copper substrate, and the outer layer is nickel-cobalt alloy as an example for illustration, and its processing method mainly includes the following steps:

[0055] (1) Electrodeposition of base metal ions: Pour the prepared electrolyte solution containing nickel metal ions into the reaction kettle, add surfactant, and clamp the reaction kettle, wherein the anode of the fixture is a nickel plate, and the cathode is the same plate. Turn on the magnetic stirring device and introduce CO 2 , heated to 50°C, pressurized to 10MPa to make it reach the supercritical condition, loaded with double pulse power supply, and prepared nickel coating;

[0056] (2) Extract the remaining reaction liquid in the reaction kettle: after the nickel electroplating is completed, cut off the upper pulse power supply and suspend the reaction. In t...

Embodiment 3

[0060] Adopt the device of embodiment 1, take the nickel layer as the base layer on the copper substrate, the middle layer is the nickel-cobalt alloy, and the outer layer is the nickel-high manganese alloy as an example for illustration, and its processing method mainly includes the following steps:

[0061] (1) Electrodeposition of base metal ions: Pour the prepared electrolyte solution containing nickel metal ions into the reaction kettle, add surfactant, and clamp the reaction kettle, wherein the anode of the fixture is a nickel plate, and the cathode is the same plate. Turn on the magnetic stirring device and introduce CO 2 , heated to about 50°C, pressurized to 10MPa to make it reach supercritical conditions, and loaded with double pulse power supply to prepare nickel coating;

[0062] (2) Extract the remaining reaction liquid in the reaction kettle: after the nickel electroplating is completed, cut off the upper pulse power supply and suspend the reaction. In the extract...

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Abstract

The invention relates to the technical field of electrochemical machining, in particular to a device and method for preparing a functional composite material under supercritical conditions. The devicecomprises a reaction kettle assembly, a base, a feeding system, and an extraction system, wherein the reaction kettle assembly comprises a reaction kettle body, a kettle cover, a fixture, a base, anda magnetic stirring device; the feeding system comprises a solution storage tank, a solution inlet pipe, an electric valve, a high-pressure pump, a back pressure valve, a check valve, a controller and the like; and the extraction system comprises an electric valve, a high-pressure pump, a back pressure valve, a check valve, a solution storage tank, a solution outlet pipe, a bottom valve, an ion densimeter, and a controller. The processing method mainly includes steps such as electrodeposition of base metal ions, extraction of residual liquid in the reaction kettle, addition of a second layerof deposited metal ion solution, and electrodeposition of an outer layer of metal ions. By means of the device, composite gradient plating of multiple layers of materials can be achieved on a substrate, real-time addition, monitoring and sampling of the solution in the kettle under high temperature and high pressure reaction conditions can be carried out, and the use range of supercritical electrodeposition is expanded.

Description

technical field [0001] The invention relates to the technical field of electrochemical processing, and the specific field is a device and method for preparing functional composite materials under supercritical conditions. Background technique [0002] Supercritical fluid refers to the fluid whose temperature and pressure are at the critical temperature and above the critical pressure. The physical and chemical properties are between liquid and gas, and it has excellent mass transfer and miscibility. [0003] Electrodeposition technology is one of the most important methods for preparing high-performance metal matrix composites based on low cost. It has attracted much attention because of its high hardness, excellent wear resistance and corrosion resistance. Electrodeposition technology based on supercritical fluid is a new electrochemical processing technology that applies supercritical fluid technology to the field of electrodeposition. Mechanical properties offer a new ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D17/00C25D5/12C25D21/12
Inventor 雷卫宁邓瑶张文杰王剑桥彭勇
Owner JIANGSU UNIV OF TECH
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