CN102995015A - Anti-corrosive treatment method of aluminum alloy surface - Google Patents
Anti-corrosive treatment method of aluminum alloy surface Download PDFInfo
- Publication number
- CN102995015A CN102995015A CN 201210377549 CN201210377549A CN102995015A CN 102995015 A CN102995015 A CN 102995015A CN 201210377549 CN201210377549 CN 201210377549 CN 201210377549 A CN201210377549 A CN 201210377549A CN 102995015 A CN102995015 A CN 102995015A
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- alloy surface
- treatment method
- corrosive treatment
- amorphous substance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Chemical Treatment Of Metals (AREA)
Abstract
The invention relates to an anti-corrosive treatment method of an aluminum alloy surface. The anti-corrosive treatment method comprises the following steps in sequence: pouring an amorphous substance in the aluminum alloy surface in an ion implantation way so as to form an insoluble compounding layer; and then forming a metal oxide coating on the aluminum alloy surface, wherein the amorphous substance includes an organic compound or inorganic oxide.
Description
Technical field
The invention belongs to field of new, refer to especially a kind of aluminum alloy surface anti-corrosive treatment method.
Background technology
Metallic corrosion spreads all over national economy and national defense construction every field, endangers very serious.At first, corrosion can cause great direct or indirect financial loss.According to the statistics of the flourishing country of industry, the financial loss that causes because of corrosion accounts for the 1.5%-4.2% of then national economy total output value.Secondly, metallic corrosion, particularly stress corrosion and corrosion fatigue tend to cause calamitous Serious Accident, jeopardize personnel safety.Moreover, corrode a large amount of metals of not only loss, and wasted mass energy, the annual metal of wanting loss 10%-20% because of corrosion.In addition, in the industrial production such as oil, chemical industry, agricultural chemicals, because of the equipment run, drip, leak that corrosion causes, not only economic loss also may make toxic substance leak, and causes environmental pollution, jeopardizes people ' s health.Simultaneously, corrosion also may become the obstacle of production development and scientific-technical progress.
The corrosion that aluminium alloy occurs under various environmental activities spreads all over each department of national economy, brings about great losses.For the generation that prevents from corroding, existing had multiple technologies to be used for preventing the generation of corroding.Wherein main aseptic technic is to adopt oxide film technology, antifouling paste technology and inhibiter technology.
In the guard technology of various metallic corrosion, the inhibiter technology is simple owing to technique, suitability becomes by force one of effective and the most the most frequently used method.But the inhibiter technology has obvious limitation, and in the liquid phase medium that inhibiter is most widely used, inhibiter must have certain solubleness, and must reach certain concentration.Traditional inhibiter has caused pollution because toxicity is larger to environment; Simultaneously, because the inhibiter consumption is less, extraneous small variation will cause larger impact to system, and this has brought very large difficulty also for the research of inhibition mechanism, these effects limit further developing of inhibiter.
Summary of the invention
The purpose of this invention is to provide a kind of new technical scheme, can be so that when not increasing metal thickness, improve anticorrosion ability by this technical scheme.
The present invention is achieved by the following technical solutions:
A kind of aluminum alloy surface anti-corrosive treatment method, its step are at first to adopt ion implantation mode to inject amorphous substance in aluminum alloy surface to form insoluble altogether network layer; Secondly form metal oxide layer in aluminum alloy surface.
Described amorphous substance includes organic compound or inorganic oxide.
Described amorphous substance includes the combination of one or both materials such as zirconium phosphate, chromic acid chromium, monocycle, condensed ring, conjugation heterocyclic compound, silicon-dioxide and Sodium Silicofluoride.
Described ion implantation be the 45-80KeV magnitude with energy;
Described altogether network layer thickness is 5-40nm.
Described injection rate is 20mg/cm
2-40mg/cm
2
The beneficial effect that the present invention compares with prior art is:
By adopting ion implantation technique, amorphous substance injected form insoluble anti-corrosion layer in the metallic object, and this one deck is structure as a whole with metal, the problem that comes off in the existing aseptic technic can not appear, outmost amount at metal when ion implantation is lower than inner amount, do not affect such as the generation of oxide film and the application of other aseptic technic, improve the corrosion resistance nature of aluminium alloy.
Embodiment
The following specifically describes embodiments of the present invention.
At first get aluminum alloy plate materials, also can choose as required the aluminum alloy materials of other model or shape, aluminum alloy materials is carried out removing surface, choose the amorphous substance for ion implantation usefulness, described amorphous substance includes organic compound or inorganic oxide.Described amorphous substance includes zirconium phosphate, chromic acid chromium, monocycle, condensed ring, contains the combination of one or both materials such as sulfenyl heterocyclic compound, silicon-dioxide and Sodium Silicofluoride.The amorphous substance of selecting in embodiments of the invention 1-6 has only been selected the amorphous substance of one-component, specifically sees Table 1.But usually do not do because of the toxic of chromic acid chromium and to select.
Of the present invention described ion implantation be the 45-80KeV magnitude with energy; Concrete selecting of Implantation Energy is to select according to the purposes of material or definite injection thickness, the thickness that injects in the present invention amorphous substance is 5-40nm, select the thickness that injects low when abominable or calling hierarchy is not high when the environment of materials'use, the also corresponding reduction of energy of therefore injecting usefulness; Abominable when the environment of materials'use, the thickness of injection is thick, the also corresponding raising of energy of therefore injecting.Employed Implantation Energy, injection thickness and unit consumption all are not quantitatively final in the present invention, and just relatively good data can be adjusted according to actual needs, may reach 100KeV magnitude or even 120KeV magnitude such as Implantation Energy; Inject thickness and also may reach 75nm; Unit injects consumption also may reach 80mg/cm
2But the desired minimum data of this patent is master data, if be lower than minimum data then Corrosion Protection can't reach best.
Above specific embodiment only can be as reference of the present invention rather than limitation of the present invention.
Owing to the present invention relates to anti-corrosion layer, the therefore salt mist experiment below implementing, and determining the corrosion area width found after long-time through certain, to make erosion resistance evaluation substantially.
1), salt mist experiment
The spray chamber, concentration is about 5% NaCL solution, pressure is 60-180 kPa pressurized air, temperature can be remained on 35 ℃ ± 1 ℃ temperature regulator, be 95%-98% in relative humidity, temperature is that it is specific long-time to spray salt solution to each sample under 35 ℃ ± 1 ℃ the condition.
2), sample
Prepare in the following manner each piece sample, measure an aluminium alloy that is of a size of 30mm * 100mm * 3mm and carry out ion implantation and carry out oxide film and process, and go out vestige with graduating with cutter thereon.Comparative Examples is that the Al alloy block that only carries out the same size of oxide film and japanning also goes out vestige with graduating with cutter thereon.
3), estimate
The employing visual type checks.
Table 1
Show by above experiment, by adopting ion implantation mode amorphous substance is injected into the aluminum alloy surface certain thickness, can effectively stop the generation of corrosion phenomenon.
Claims (6)
1. aluminum alloy surface anti-corrosive treatment method is characterized in that: its step is at first to adopt ion implantation mode to inject amorphous substance in aluminum alloy surface to form insoluble altogether network layer; Secondly form metal oxide layer in aluminum alloy surface.
2. a kind of aluminum alloy surface anti-corrosive treatment method according to claim 1, it is characterized in that: described amorphous substance includes organic compound or inorganic oxide.
3. a kind of aluminum alloy surface anti-corrosive treatment method according to claim 1 and 2, it is characterized in that: described amorphous substance includes the combination of one or both materials such as zirconium phosphate, chromic acid chromium, monocycle, condensed ring, conjugation heterocyclic compound, silicon-dioxide and Sodium Silicofluoride.
4. a kind of aluminum alloy surface anti-corrosive treatment method according to claim 1 is characterized in that: described ion implantation be the 45-80KeV magnitude with energy.
5. a kind of aluminum alloy surface anti-corrosive treatment method according to claim 1 is characterized in that: described altogether network layer thickness is 5-40nm.
6. a kind of aluminum alloy surface anti-corrosive treatment method according to claim 1, it is characterized in that: described injection rate is 20mg/cm
2-40mg/cm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210377549 CN102995015A (en) | 2012-09-29 | 2012-09-29 | Anti-corrosive treatment method of aluminum alloy surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210377549 CN102995015A (en) | 2012-09-29 | 2012-09-29 | Anti-corrosive treatment method of aluminum alloy surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102995015A true CN102995015A (en) | 2013-03-27 |
Family
ID=47924108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210377549 Pending CN102995015A (en) | 2012-09-29 | 2012-09-29 | Anti-corrosive treatment method of aluminum alloy surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102995015A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349957A (en) * | 2015-11-10 | 2016-02-24 | 黄忠波 | Corrosion prevention method for aluminum alloy surfaces |
-
2012
- 2012-09-29 CN CN 201210377549 patent/CN102995015A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349957A (en) * | 2015-11-10 | 2016-02-24 | 黄忠波 | Corrosion prevention method for aluminum alloy surfaces |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102864456A (en) | Aluminum alloy engine anti-corrosion treatment method | |
| CN102888604A (en) | Anti-corrosion treatment method for surface of metal aluminum | |
| CN104018148B (en) | Batch quantity hot dipping zinc chrome-free tanning agent and using method thereof | |
| CN106318200B (en) | A kind of modified water-soluble compound closure agent and preparation method thereof | |
| CN102994054B (en) | Anti-freezing liquid and preparation method and application thereof | |
| CN102936728B (en) | A kind of cation water-based antirust agent composition | |
| CN102061465A (en) | Chrome-free sealing agent | |
| CN102995023A (en) | Aluminium alloy low-temperature anticorrosion protective agent and preparation method thereof | |
| CN102993808A (en) | Aluminium low-temperature anticorrosion protective agent and method | |
| CN102978625A (en) | Aluminum alloy low temperature anticorrosion protection agent and anticorrosion method | |
| CN102995024A (en) | Aluminium alloy surface low-temperature anticorrosion protective agent and preparation method thereof | |
| CN102994968A (en) | Anti-corrosive treatment method for aluminum alloy | |
| CN102978626A (en) | Aluminum alloy surface low temperature anticorrosion protection agent and anticorrosion method | |
| CN102995016A (en) | Anti-corrosion treatment method for metallic aluminum | |
| CN102993807A (en) | Preparation and application of aluminium alloy surface anti-corrosion and color-fixing agent | |
| CN105038469A (en) | Water-based inorganic anti-corrosive paint added with aluminum stearate | |
| CN102899627A (en) | Anti-corrosion treatment method for aluminum alloy motor and parts | |
| CN102995015A (en) | Anti-corrosive treatment method of aluminum alloy surface | |
| CN103014715A (en) | Corrosion inhibitor composition for preventing hydrogen sulfide corrosion | |
| CN102978620A (en) | Aluminum surface anti-corrosion treatment method | |
| CN105062277A (en) | Sodium stearate-containing inorganic anticorrosive paint and preparation technology thereof | |
| CN102899626A (en) | Motor surface anti-corrosion treatment method | |
| CN105256282A (en) | Metal aluminum anti-corrosion treatment method | |
| CN105296950A (en) | Aluminum alloy anticorrosive treatment method | |
| CN104073034B (en) | A kind of apply to fuel tank internal surface coating the preparation method of improvement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |