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A method and system for preparing an aluminum alloy surface wear-resistant ultra-fine micro-nano composite structure

A technology of micro-nano composite structure and aluminum alloy surface, which is applied in the direction of cleaning methods using liquids, cleaning methods and utensils, chemical instruments and methods, etc., and can solve problems such as long cycle, complicated process, and low efficiency

Active Publication Date: 2021-08-20
XIAN UNIV OF SCI & 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 solve the problems of complex process, low efficiency, long cycle, high cost and poor structural mechanical properties existing in the existing ultra-dense micro-nano structure preparation technology

Method used

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  • A method and system for preparing an aluminum alloy surface wear-resistant ultra-fine micro-nano composite structure
  • A method and system for preparing an aluminum alloy surface wear-resistant ultra-fine micro-nano composite structure
  • A method and system for preparing an aluminum alloy surface wear-resistant ultra-fine micro-nano composite structure

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preparation example Construction

[0054] The present invention provides a method and system for preparing a wear-resistant ultra-fine micro-nano composite structure on the surface of an aluminum alloy. The material technology scheme can realize the preparation of ultra-fine micro-nano structure on the surface of aluminum alloy, but the processing process is complicated, the efficiency is low, the preparation cycle is long, and it is not conducive to large-scale production, and the structure prepared by additive technology has low bonding strength with the substrate interface , The structural bearing capacity is weak and the wear resistance is poor. In order to more efficiently prepare wear-resistant super-fine micro-nano composite structures on the surface of aluminum alloys, the present invention provides an intelligent preparation method and system, which provides users with fully automatic or semi-automatic processing processes, and the adjustment is more accurate for different application environment requir...

Embodiment 1

[0056] Embodiment one, see figure 1 :

[0057] Step S1. Ultrasonic cleaning pretreatment:

[0058] Ultrasonic cleaning is performed on aluminum alloy plates in a space with a closed pressure of 1.2-1.5Pa and an automatic constant temperature of 25°C, and automatically adjusts the frequency of ultrasonic cleaning according to the different cleaning objectives of the aluminum alloy surface to improve cleaning efficiency:

[0059] 1) First clean the oily organic matter on the surface of the aluminum alloy, such as mineral oil, synthetic oil, animal and vegetable oil, anti-rust oil and other oil stains and paints: select the cleaning target as oily ketone-soluble organic matter, put the aluminum alloy plate in acetone, and adjust it intelligently The ultrasonic cleaning frequency is 28kHz, and the ultrasonic cleaning is performed for 2 minutes;

[0060] 2) Clean surface lipid organic matter, such as wax, triglyceride, etc.: select the cleaning target as lipid alcohol-soluble org...

Embodiment 2

[0071] Embodiment two, see figure 2 :

[0072] Step S1. Ultrasonic cleaning pretreatment:

[0073] Ultrasonic cleaning is performed on aluminum alloy plates in a space with a closed pressure of 1.2-1.5Pa and an automatic constant temperature of 25°C. According to different cleaning objectives of the aluminum alloy surface, the frequency of ultrasonic cleaning is intelligently selected to improve cleaning efficiency:

[0074] 1) First clean the oily organic matter on the surface of the aluminum alloy: select the cleaning target as oily ketone-soluble organic matter, place the aluminum alloy plate in acetone, intelligently adjust the ultrasonic cleaning frequency to 28kHz, and perform ultrasonic cleaning for 2 minutes;

[0075] 2) Clean the surface oil: select the cleaning target as lipid alcohol-soluble organic matter, place the aluminum alloy sample after ultrasonic cleaning with acetone in absolute ethanol, intelligently adjust the ultrasonic cleaning frequency to 40kHz, an...

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Abstract

The invention provides a method and system for preparing a wear-resistant super-fine micro-nano composite structure on the surface of an aluminum alloy, comprising the following steps: step S1, pretreatment: ultrasonically cleaning the aluminum alloy plate; step S2, electrochemical etching: using Electrochemical three-electrode system, performing electrochemical etching treatment on the aluminum alloy plate after ultrasonic cleaning; step S3, post-processing: performing ultrasonic cleaning on the aluminum alloy sample after electrochemical etching. In addition, step S2A may also be set before step S2: coating graphite on a partial area of ​​the surface of the aluminum alloy. The surface of the aluminum alloy prepared by the present invention has the advantages of better superhydrophobicity, lower friction coefficient, better wear resistance and corrosion resistance. At the same time, intelligent ultrasonic cleaning equipment and electrochemical etching equipment are provided to realize full automation or semi-automatic The automatic preparation process has high preparation efficiency, which is conducive to the realization of large-scale production, reduces the workload and difficulty of users, and makes it easier for non-professionals to get started quickly.

Description

technical field [0001] The invention belongs to the field of mechanical surface effect and surface technology, and in particular relates to a preparation method and system of a wear-resistant ultra-fine micro-nano composite structure on an aluminum alloy surface. Background technique [0002] The progress of human science and technology originates from nature. Inspired by the "lotus leaf effect", the micro-nano composite structure endows materials with excellent superhydrophobicity by changing the interaction behavior of the surface and interface. Its preparation has become an interdisciplinary subject and a new development direction in the field of engineering. [0003] Because of its excellent physical, chemical and mechanical properties, such as low density, good electrical and thermal conductivity, good plasticity, easy processing and high strength, etc., aluminum alloy is widely used in machinery manufacturing, marine engineering, aerospace, port waterway, coast Enginee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25F3/04C25F7/00B08B3/12B08B3/08
CPCB08B3/08B08B3/12C25F3/04C25F7/00
Inventor 李雪伍梁靖松石甜邵金辉张传伟张林周龙龙王红星钟斌吕源
Owner XIAN UNIV OF SCI & TECH
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