CN109848759A - A kind of process of surface treatment of aluminium alloy - Google Patents
A kind of process of surface treatment of aluminium alloy Download PDFInfo
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- CN109848759A CN109848759A CN201811608768.1A CN201811608768A CN109848759A CN 109848759 A CN109848759 A CN 109848759A CN 201811608768 A CN201811608768 A CN 201811608768A CN 109848759 A CN109848759 A CN 109848759A
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- aluminium alloy
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Abstract
The invention belongs to metal surface treatment process technical fields, disclose a kind of process of surface treatment of aluminium alloy, surface polishing treatment is carried out the following steps are included: aluminium alloy cast member to be processed is placed in magnetic grinding liquid, containing water, passivating solution and with magnetic steel needle in the magnetic grinding liquid；The processed aluminium alloy cast member of previous step is placed into water and is cleaned；Aluminium alloy cast member after cleaning is placed into baking oven and is dried；Compared to the prior art, which is processed by shot blasting there is that process is simple to the surface of aluminium alloy cast member using magnetically grinding technology and passivating solution, and it is high, pollution-free to polish brightness.
Description
Technical field
The present invention relates to metal surface treatment process technical field, in particular to a kind of process of surface treatment of aluminium alloy.
Background technique
Aluminum alloy materials hardness with higher, preferable thermal conductivity, density are lower and easy to form therefore more and more
The shell applied to day electronic product in.The most corrosion resistance of aluminum alloy materials is poor, it is therefore desirable to use anodic oxygen chemical industry
Skill handles the surface of aluminum alloy materials, and the surface for enabling aluminum alloy to material forms protective oxide film, thus aobvious
It lands and improves the corrosion resistance of aluminum alloy materials.
For example, Chinese patent literature CN105506639A discloses a kind of aluminium alloy surface treatment method, aluminium is closed first
Gold surface is pre-processed, and the change for being subsequently placed in specific components, which is thrown, carries out chemical polishing processing in liquid, finally carries out anodic oxidation
Processing, to obtain the aluminum alloy materials of highlight surface.Chemical polishing has the advantages that suitable batch processing, labor intensity are lower,
But process is more, and since the technique controlling difficulty of chemical polishing is larger, prepares mirror surface luminosity Ra < 20 μm, it is important
The polishing fluid for being chemical polishing use is mostly strong acid and strong base melt, and liquid waste processing difficulty is big, and its environmental pollution is larger.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the invention provides a kind of process of surface treatment of aluminium alloy, tools
Have that process is simple, and polishes the advantages that brightness is high, pollution-free.
In order to achieve the above objectives, technical solution of the present invention is as follows:
A kind of process of surface treatment of aluminium alloy, comprising the following steps:
Grinding: aluminium alloy cast member to be processed being placed in magnetic grinding liquid and carries out surface polishing treatment, the magnetic force
Containing water, passivating solution and with magnetic steel needle in lapping liquid.
Cleaning: the processed aluminium alloy cast member of previous step is placed into water and is cleaned；
Drying: the aluminium alloy cast member after cleaning is placed into baking oven and is dried.
Further, the steel needle is the column construction that diameter is less than or equal to 2mm.
Further, described that aluminium alloy cast member to be processed is placed on progress surface polishing treatment institute in magnetic grinding liquid
Need the time not less than 20min.
Further, the magnetic grinding liquid is permanent magnetic lapping liquid.
Further, described that aluminium alloy cast member to be processed is placed on progress surface polishing treatment packet in magnetic grinding liquid
Include magnetic grinding and vibro-grinding.
The embodiment of the present invention provides a kind of process of surface treatment of aluminium alloy, comprising the following steps: by aluminium alloy to be processed
Cast member, which is placed in magnetic grinding liquid, carries out surface polishing treatment, and water, passivating solution are contained in the magnetic grinding liquid and is had
Magnetic steel needle；The processed aluminium alloy cast member of previous step is placed into water and is cleaned；By the aluminium alloy casting after cleaning
Forging piece is placed into baking oven and dries；Compared to the prior art, which closes aluminium using magnetically grinding technology and passivating solution
The surface of golden cast member is processed by shot blasting there is that process is simple, and it is high, pollution-free to polish brightness.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the embodiment of the present invention, to this hair
Technical solution in bright embodiment is clearly and completely described, it is clear that described embodiment is only present invention a part
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Working principle: so-called magnetic grinding, just refer to magnetically grinding (must have concurrently it is magnetisable and can be carried out grinding two kinds of property
Can granular substance) magnetic brush that is formed in magnetic field, method for finishing manufactured is carried out to workpiece surface.In magnetically grinding process
In, workpiece surface repeatedly repeatedly by magnetic pole N and S alternating magnetic field effect, the electromotive force that conductive magnetic abrasive generates
So that workpiece surface is charged repeatedly, enhance surface electrochemistry process, changes the stress distribution on surface, it is hard to improve surface
Degree, improves surface physics mechanical performance.
Embodiment
A kind of process of surface treatment of aluminium alloy, comprising the following steps:
S11 grinding: aluminium alloy cast member to be processed is placed in magnetic grinding liquid and carries out surface polishing treatment, when polishing
A length of 30min, in the magnetic grinding liquid containing water, passivating solution and with magnetic diameter be 1mm column construction steel needle,
And steel needle is permanent magnet steel needle, i.e., magnetic grinding liquid is permanent magnetic lapping liquid.
Specifically, which includes magnetic grinding and vibro-grinding, wherein magnetic grinding has grinding temperature rise small, workpiece
It deforms small, cuts depth lampet advantage, the surface of workpiece can be made more smooth bright and clean, its brightness is increased to Ra=60
μm, grinding rate in addition can effectively improve to the novel working process of workpiece simultaneously using magnetic grinding and vibro-grinding, and
The cylindricality steel needle of small size increases milling area again, further improves grinding rate；On the other hand, workpiece is in passivating solution
It acts on its lower surface and forms a kind of good passivating film of very thin and fine and close covering performance, effectively increase the resistance to oxidation of workpiece
And corrosion resistance.
S12 cleaning: the processed aluminium alloy cast member of previous step is placed into water and is cleaned；
S13 drying: the aluminium alloy cast member after cleaning is placed into baking oven and is dried.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of process of surface treatment of aluminium alloy, which comprises the following steps:
Grinding: aluminium alloy cast member to be processed being placed in magnetic grinding liquid and carries out surface polishing treatment, the magnetic grinding
Containing water, passivating solution and with magnetic steel needle in liquid.
Cleaning: the processed aluminium alloy cast member of previous step is placed into water and is cleaned；
Drying: the aluminium alloy cast member after cleaning is placed into baking oven and is dried.
2. the process of surface treatment of aluminium alloy according to claim 1, which is characterized in that the steel needle be diameter be less than or
Column construction equal to 2mm.
3. the process of surface treatment of aluminium alloy according to claim 1, which is characterized in that described to cast aluminium alloy to be processed
Forging piece, which is placed in magnetic grinding liquid, carries out the time required for surface polishing treatment not less than 20min.
4. the process of surface treatment of aluminium alloy according to claim 1, which is characterized in that the magnetic grinding liquid is permanent magnetic
Lapping liquid.
5. the process of surface treatment of aluminium alloy according to claim 1, which is characterized in that described to cast aluminium alloy to be processed
It includes magnetic grinding and vibro-grinding that forging piece, which is placed in magnetic grinding liquid and carries out surface polishing treatment,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811608768.1A CN109848759A (en) | 2018-12-27 | 2018-12-27 | A kind of process of surface treatment of aluminium alloy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811608768.1A CN109848759A (en) | 2018-12-27 | 2018-12-27 | A kind of process of surface treatment of aluminium alloy |
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| CN109848759A true CN109848759A (en) | 2019-06-07 |
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| CN201811608768.1A Pending CN109848759A (en) | 2018-12-27 | 2018-12-27 | A kind of process of surface treatment of aluminium alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211754A (en) * | 2019-06-27 | 2019-09-06 | 佛山好运电器配件有限公司 | A kind of environment-friendly type current divider and its process of surface treatment |
| CN114571291A (en) * | 2022-03-08 | 2022-06-03 | 丝艾工业科技(海安)有限公司 | Frosted texture treatment process for rear surface of threshold strip stamping steel part or aluminum part |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211754A (en) * | 2019-06-27 | 2019-09-06 | 佛山好运电器配件有限公司 | A kind of environment-friendly type current divider and its process of surface treatment |
| CN114571291A (en) * | 2022-03-08 | 2022-06-03 | 丝艾工业科技(海安)有限公司 | Frosted texture treatment process for rear surface of threshold strip stamping steel part or aluminum part |
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Application publication date: 20190607 |