CN102888604A - Anti-corrosion treatment method for surface of metal aluminum - Google Patents
Anti-corrosion treatment method for surface of metal aluminum Download PDFInfo
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- CN102888604A CN102888604A CN201210358402XA CN201210358402A CN102888604A CN 102888604 A CN102888604 A CN 102888604A CN 201210358402X A CN201210358402X A CN 201210358402XA CN 201210358402 A CN201210358402 A CN 201210358402A CN 102888604 A CN102888604 A CN 102888604A
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Abstract
The invention relates to an anti-corrosion treatment method for surface of metal aluminum. The anti-corrosion treatment method comprises the following steps of firstly implanting amorphous substances into the surface of the metal aluminum by utilizing an ion implantation manner to form an insoluble co-complexing layer; and secondly preparing a metal oxidation layer on the surface of the metal aluminum, undercoating the metal oxidation layer, wherein the amorphous substances comprises organic compounds or inorganic oxides.
Description
Technical field
The invention belongs to field of new, refer to especially metallic aluminium surface anticorrosive treatment process.
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:
Metallic aluminium surface anticorrosive treatment process, its step are at first to adopt ion implantation mode to inject amorphous substance to form insoluble altogether network layer on the metallic aluminium surface; Secondly form metal oxide layer on the metallic aluminium surface, be coated with antifouling paste at metal oxide layer again.
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.
Embodiment
The following specifically describes embodiments of the present invention.
At first get metallic aluminium sheet material, also can choose as required the aluminum of other model or shape, aluminum 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.
The surface of metallic aluminium forms the layer of metal zone of oxidation again behind ion, prime at metal oxide layer again, described priming paint thickness be 80-200nm.
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 sheet 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 metallic aluminium surface certain thickness, can effectively stop the generation of corrosion phenomenon.
Claims (7)
1. metallic aluminium surface anticorrosive treatment process is characterized in that: its step is at first to adopt ion implantation mode to inject amorphous substance to form insoluble altogether network layer on the metallic aluminium surface; Secondly form metal oxide layer on the metallic aluminium surface, prime at metal oxide layer again.
2. metallic aluminium surface anticorrosive treatment process according to claim 1, it is characterized in that: described amorphous substance includes organic compound or inorganic oxide.
3. metallic aluminium surface anticorrosive treatment process 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. metallic aluminium surface anticorrosive treatment process according to claim 1 is characterized in that: described ion implantation be the 45-80KeV magnitude with energy.
5. metallic aluminium surface anticorrosive treatment process according to claim 1 is characterized in that: described altogether network layer thickness is 5-40nm.
6. metallic aluminium surface anticorrosive treatment process according to claim 1, it is characterized in that: described injection rate is 20mg/cm
2-40mg/cm
2
7. metallic aluminium surface anticorrosive treatment process according to claim 1, it is characterized in that: the thickness of described priming paint is 80-200nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210358402XA CN102888604A (en) | 2012-09-21 | 2012-09-21 | Anti-corrosion treatment method for surface of metal aluminum |
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| CN201210358402XA CN102888604A (en) | 2012-09-21 | 2012-09-21 | Anti-corrosion treatment method for surface of metal aluminum |
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| CN102888604A true CN102888604A (en) | 2013-01-23 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978620A (en) * | 2012-09-29 | 2013-03-20 | 吴雅萍 | Aluminum surface anti-corrosion treatment method |
| CN103668201A (en) * | 2013-12-09 | 2014-03-26 | 常熟市大康汽车座垫有限责任公司 | Anticorrosive treatment method of metal aluminum |
| CN105256282A (en) * | 2015-11-10 | 2016-01-20 | 严静儿 | Metal aluminum anti-corrosion treatment method |
| CN105349957A (en) * | 2015-11-10 | 2016-02-24 | 黄忠波 | Corrosion prevention method for aluminum alloy surfaces |
| CN105463438A (en) * | 2015-12-31 | 2016-04-06 | 芜湖市金宇石化设备有限公司 | Anti-corrosion treatment method for automobile aluminum pedal |
| CN105568275A (en) * | 2015-12-31 | 2016-05-11 | 芜湖市金宇石化设备有限公司 | Corrosion resistant foundation liquid for corrosion resistant treatment of aluminum vehicle pedal |
| CN105624685A (en) * | 2015-12-31 | 2016-06-01 | 芜湖市金宇石化设备有限公司 | Preparation method for anti-corrosion basic fluid for anti-corrosion treatment of automobile aluminum pedal |
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| EP1239976B1 (en) * | 1999-12-21 | 2003-08-06 | Alcoa Inc. | Copolymer primer for aluminum alloy food and beverage containers |
| JP2004277784A (en) * | 2003-03-14 | 2004-10-07 | Hitachi Ltd | Aluminum of high corrosion resistance and wear resistance, and surface treatment method therefor |
| CN101128624A (en) * | 2005-01-10 | 2008-02-20 | 肖特兄弟公司 | Anodising aluminium alloy |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978620A (en) * | 2012-09-29 | 2013-03-20 | 吴雅萍 | Aluminum surface anti-corrosion treatment method |
| CN103668201A (en) * | 2013-12-09 | 2014-03-26 | 常熟市大康汽车座垫有限责任公司 | Anticorrosive treatment method of metal aluminum |
| CN105256282A (en) * | 2015-11-10 | 2016-01-20 | 严静儿 | Metal aluminum anti-corrosion treatment method |
| CN105349957A (en) * | 2015-11-10 | 2016-02-24 | 黄忠波 | Corrosion prevention method for aluminum alloy surfaces |
| CN105463438A (en) * | 2015-12-31 | 2016-04-06 | 芜湖市金宇石化设备有限公司 | Anti-corrosion treatment method for automobile aluminum pedal |
| CN105568275A (en) * | 2015-12-31 | 2016-05-11 | 芜湖市金宇石化设备有限公司 | Corrosion resistant foundation liquid for corrosion resistant treatment of aluminum vehicle pedal |
| CN105624685A (en) * | 2015-12-31 | 2016-06-01 | 芜湖市金宇石化设备有限公司 | Preparation method for anti-corrosion basic fluid for anti-corrosion treatment of automobile aluminum pedal |
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