CN110512156A - A kind of aluminium alloy based composites Nano surface treatment method - Google Patents
A kind of aluminium alloy based composites Nano surface treatment method Download PDFInfo
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- CN110512156A CN110512156A CN201910739906.8A CN201910739906A CN110512156A CN 110512156 A CN110512156 A CN 110512156A CN 201910739906 A CN201910739906 A CN 201910739906A CN 110512156 A CN110512156 A CN 110512156A
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- aluminium alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F3/00—Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
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- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention proposes a kind of aluminium alloy based composites Nano surface treatment methods, belong to field of material surface treatment, comprising the following steps: aluminium alloy plate is successively carried out ultrasonic cleaning, drying, nano high-energy shot-peening, washing, drying and processing by step 1；Step 2 will successively carry out alkali process, acid processing, washing, drying and processing by the aluminium alloy of step 1 processing；Step 3 will successively carry out impregnation, gas treatment, ultrasonic punching pin impact and drying and processing by the alloy matrix aluminum of step 2 processing.Advantageous effects of the invention: a kind of nanocomposite aluminium alloy primary surface processing method of the invention can greatly improve the bond strength of alloy matrix aluminum and surface composite layer.Of the invention preparation method is simple, low in cost, is suitble to large-scale production and application.
Description
Technical field
The present invention relates to a kind of aluminium alloy based composites Nano surface treatment methods, belong to field of material surface treatment.
Background technique
With the fast development in epoch, global resources are gradually deficient, thus for self-lubricating, shock resistance, endurance,
The alternative materials of the excellent properties such as wear-resistant and high temperature resistant are thirsted for, and metal-base composites has become manufacturing ideal material
Material, significantly improves the limitation of single metal material, thus is widely used in aerospace, defence and military, mine, friendship
The industrial circles such as logical, environmental protection, chemical industry, ship, food, pharmacy.
The lubrication of conventional machines components reduces fretting wear by using the method for lubricating oil, lubricating grease, but right
Under the conditions of the special operation conditions such as food, environmental protection, water conservancy, the operation of element part is required in few oil or even oil-free work
Under environment, it is therefore desirable to develop better product, run element part under multi-state, and can reduce machine
Environmental noise caused by vibration, bounce etc., metallo-plastic self-lubricating composite come into being when components are run.
Summary of the invention
The purpose of the present invention is overcoming above-mentioned problem of the prior art, a kind of alloy matrix aluminum is provided and is securely tied with plastics
Conjunction, simple process, surface treatment method at low cost, suitable for large-scale production and application, solve in the prior art that cohesive force is not
The defect of foot.
The technical scheme of the present invention is realized as follows:
A kind of aluminium alloy based composites Nano surface treatment method, including following processing step:
Aluminium alloy plate is successively carried out ultrasonic cleaning, drying, nano high-energy shot-peening, washing, drying and processing by step 1；
Step 2 will successively carry out alkali process, acid processing, washing, drying and processing by the aluminium alloy of step 1 processing；
Step 3 will successively carry out impregnation, gas treatment, ultrasonic punching pin by the alloy matrix aluminum of step 2 processing
Impact and drying and processing.
Preferably, the ultrasonic cleaning in the step 1, scavenging period 30min, to remove aluminium alloy matrix surface
Dust, greasy dirt, oxide.
Preferably, the washing in the step 1 is to be cleaned with deionized water to aluminium alloy matrix surface, repeatedly cleaning time
Number is 2 to 5 times.
Preferably, the drying and processing in the step 1, alloy matrix aluminum is put into vacuum dryer and is dried, dryer
Temperature setting be 80 DEG C, the time be 1 hour.
Preferably, the nano high-energy bead in the step 1 carries out nano high-energy spray to aluminium alloy matrix surface
Ball processing, nano high-energy shot-peening partial size are 40~60 mesh quartz sands, and the nano high-energy shot-peening time is 30~60s, nano high-energy spray
Ball pressure is 10MPa.
Preferably, the alkali process in the step 2 is using mass percent concentration to aluminium alloy matrix surface
The strong alkali aqueous solution alkali cleaning of 0.5%-5%, soaking time 15min-30min, the strong alkali aqueous solution are potassium hydroxide solution.
Preferably, the acid processing in the step 2, using mass percent concentration to aluminium alloy matrix surface is 1%-
5% hydrobromic acid aqueous solution neutralizes, soaking time 15min-30min, and the strong acid aqueous solution is hydrobromic acid solution.
Preferably, the impregnation in the step 3 processing, impregnating agent is the mixed solution of sodium dichromate and chromium oxide,
Sodium dichromate mass percent is 40%-60%, and chromium oxide mass percent is 40%-60%.
Preferably, the gas treatment in the step 3 processing, is with pyridine (C5H6N) gas to aluminium alloy matrix surface
It is handled, by pyridine (C5H6N) gas compression into water, and heats the water to 100 DEG C, aluminium alloy matrix surface is sufficiently connect
Touching.
Preferably, the ultrasonic punching pin impact in the step 3 processing, sets frequency of impact 50HZ, amplitude 20um, electric current
1.5A, attack time 10min, impact velocity 2-3m/min.
Preferably, the drying and processing in the step 3 processing, is that alloy matrix aluminum is put into vacuum dryer to dry,
The temperature setting of dryer is 80 DEG C, and the time is 1 hour.
Advantageous effects of the invention:
1. a kind of aluminium alloy based composites Nano surface treatment method of the invention, can greatly improve aluminium alloy base
The bond strength of body and surface composite layer, of the invention preparation method is simple, low in cost, is suitble to large-scale production and answers
With.
2. maceration extract is immersed in aluminium alloy primary surface and forms protective film, sodium dichromate and chromium oxide, which cooperate, enhances aluminium conjunction
The anticorrosion antiwear of auri；The utilization of hyperon punching pin impact technology can improve the residual stress of aluminium alloy primary surface, Neng Gougai
Become the macro morphology and microstructure of aluminium alloy base, while to the surface hardness and wearability for improving aluminium alloy base.
3. this method to used in the pickling solution used of acid processing of aluminium alloy base table surface treatment hydrobromic acid aqueous solution without
It is the nitric acid of high concentration, avoids in aluminum alloy surface treatment process, generates harmful gas such as nitric oxide, nitrogen dioxide
Body, this method is easy to the process of aluminium alloy base table surface treatment, processing cost is low, greatly reduces pollution to environment.
Specific embodiment
Illustrate technical solution of the present invention in order to clearer, the present invention is done further With reference to embodiment
Description:
Embodiment 1
Alloy matrix aluminum is cut into having a size of 50mm × 30mm × 3mm sheet metal；The ultrasonic cleaning time is 30min,
To remove the dust, greasy dirt, oxide of aluminium alloy matrix surface, aluminium alloy matrix surface is cleaned with deionized water, repeatedly clearly
Washing number is 2 times, and alloy matrix aluminum is put into vacuum dryer and is dried, and the temperature setting of dryer is 80 DEG C, and the time is 1 small
When, nano high-energy bead is carried out to aluminium alloy matrix surface, nano high-energy shot-peening partial size is 40 mesh quartz sands, nano high-energy
The shot-peening time is 30s, and nano high-energy pressure is 10MPa, is using mass percent concentration to aluminium alloy matrix surface
0.5% strong alkali aqueous solution alkali cleaning, soaking time 15min, the strong alkali aqueous solution is potassium hydroxide solution, to aluminium alloy base
Body surface face is neutralized using the hydrobromic acid aqueous solution that mass percent concentration is 1%, soaking time 15min, and the strong acid is water-soluble
Liquid is hydrobromic acid solution, and the impregnating agent of impregnation is the mixed solution of sodium dichromate and chromium oxide, sodium dichromate quality percentage
Than being 40%, chromium oxide mass percent be 60%, gas treatment be with pyridine (C5H6N) gas to aluminium alloy matrix surface into
Row processing, by pyridine (C5H6N) gas compression into water, and heats the water to 100 DEG C, aluminium alloy matrix surface is sufficiently connect
Touching then carries out ultrasonic punching pin shock treatment, and last drying and processing is that alloy matrix aluminum is put into vacuum dryer to dry, and is dried
The temperature setting of dry machine is 80 DEG C, and the time is 1 hour, obtains sample 1.
Embodiment 2
Alloy matrix aluminum is cut into having a size of 50mm × 30mm × 3mm sheet metal；The ultrasonic cleaning time is 30min,
To remove the dust, greasy dirt, oxide of aluminium alloy matrix surface, aluminium alloy matrix surface is cleaned with deionized water, repeatedly clearly
Washing number is 5 times, and alloy matrix aluminum is put into vacuum dryer and is dried, and the temperature setting of dryer is 80 DEG C, and the time is 1 small
When, nano high-energy bead is carried out to aluminium alloy matrix surface, nano high-energy shot-peening partial size is 60 mesh quartz sands, nano high-energy
The shot-peening time is 60s, and nano high-energy pressure is 10MPa, and using mass percent concentration to aluminium alloy matrix surface is 5%
Strong alkali aqueous solution alkali cleaning, soaking time 30min, the strong alkali aqueous solution be potassium hydroxide solution, to alloy matrix aluminum table
Face is neutralized using the hydrobromic acid aqueous solution that mass percent concentration is 5%, soaking time 30min, and the strong acid aqueous solution is
Hydrobromic acid solution, the impregnating agent of impregnation are the mixed solution of sodium dichromate and chromium oxide, and sodium dichromate mass percent is
60%, chromium oxide mass percent be 40%, gas treatment be with pyridine (C5H6N) gas to aluminium alloy matrix surface at
Reason, by pyridine (C5H6N) gas compression into water, and heats the water to 100 DEG C, aluminium alloy matrix surface is come into full contact with, with
Ultrasonic punching pin shock treatment is carried out afterwards, and last drying and processing is that alloy matrix aluminum is put into vacuum dryer to dry, dryer
Temperature setting be 80 DEG C, the time be 1 hour, obtain sample 2.
Sample 1 to sample 2 and commercial product are combined intensity contrast experiment, correlation data is as follows.
From data it is found that bond strength mentions significantly using nanocomposite of the invention compared with presently commercially available product
It is high.Meanwhile it is of the invention preparation method is simple, it is low in cost, be suitble to large-scale production and application.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of aluminium alloy based composites Nano surface treatment method, it is characterised in that: the following steps are included:
Step 1: aluminium alloy plate is successively carried out to ultrasonic cleaning, drying, nano high-energy shot-peening, washing, drying and processing；
Step 2: alkali process, acid processing, washing, drying and processing will successively be carried out by the aluminium alloy of step 1 processing；
Step 3: impregnation, gas treatment, ultrasonic punching pin impact will successively be carried out by the alloy matrix aluminum of step 2 processing
And drying and processing；Wherein, ultrasonic punching pin impact, sets frequency of impact 50HZ, 15~20um of amplitude, 1.5~2A of electric current, impact
8~15min of time, impact velocity 2-3m/min.
2. aluminium alloy based composites Nano surface treatment method according to claim 1, which is characterized in that the step
Ultrasonic cleaning in one, scavenging period 30min, to remove the dust, greasy dirt, oxide of aluminium alloy matrix surface.
3. aluminium alloy based composites Nano surface treatment method according to claim 1, which is characterized in that the step
Washing in one is to be cleaned with deionized water to aluminium alloy matrix surface, and wash number is 2~5 times repeatedly.
4. aluminium alloy based composites Nano surface treatment method according to claim 1, which is characterized in that the step
Drying and processing in one, alloy matrix aluminum is put into vacuum dryer and is dried, and the temperature setting of dryer is 80 DEG C, and the time is
1 hour.
5. aluminium alloy based composites Nano surface treatment method according to claim 1, which is characterized in that the step
Nano high-energy bead in one carries out nano high-energy bead, nano high-energy shot-peening partial size to aluminium alloy matrix surface
For 40~60 mesh quartz sands, the nano high-energy shot-peening time is 30~60s, and nano high-energy pressure is 10MPa.
6. aluminium alloy based composites Nano surface treatment method according to claim 1, which is characterized in that the degreasing
Alkaline ungrease treatment in processing, the strong alkali aqueous solution for the use of mass percent concentration being 0.5%~5% to 45# surface of steel plate
Alkali cleaning, temperature are 20 DEG C~60 DEG C, and soaking time is 10min~15min, and the strong alkali aqueous solution is potassium hydroxide solution.
7. aluminium alloy based composites Nano surface treatment method according to claim 1, which is characterized in that the step
Alkali process in two, the strong alkali aqueous solution alkali cleaning for the use of mass percent concentration being 0.5%~5% to aluminium alloy matrix surface,
Soaking time is 15min~30min, and the strong alkali aqueous solution is potassium hydroxide solution.
8. aluminium alloy based composites Nano surface treatment method according to claim 1, it is characterised in that: the step
Impregnation in three processing, impregnating agent are the mixed solution of sodium dichromate and chromium oxide, and sodium dichromate mass percent is
40%~60%, chromium oxide mass percent is 40%-60%.
9. aluminium alloy based composites Nano surface treatment method according to claim 1, which is characterized in that the step
Gas treatment in three processing, pyridine (C5H6N) gas handles aluminium alloy matrix surface, by pyridine (C5H6N) gas
It is compressed in water, and heats the water to 100 DEG C, aluminium alloy matrix surface is come into full contact with.
10. aluminium alloy based composites Nano surface treatment method according to claim 1, which is characterized in that the step
Drying and processing in rapid three processing, is that alloy matrix aluminum is put into vacuum dryer to dry, and the temperature setting of dryer is 80
DEG C, the time is 1 hour.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113790622A (en) * | 2021-08-24 | 2021-12-14 | 西安交通大学 | Experimental device and method for preparing liquid absorption core silk screen with nano surface |
| CN115572964A (en) * | 2022-11-21 | 2023-01-06 | 河北宇天材料科技有限公司 | Conductive oxidation treatment method for aluminum alloy cavity |
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