CN104313578A - Method for anti-corrosion treatment of engine - Google Patents
Method for anti-corrosion treatment of engine Download PDFInfo
- Publication number
- CN104313578A CN104313578A CN201410545003.3A CN201410545003A CN104313578A CN 104313578 A CN104313578 A CN 104313578A CN 201410545003 A CN201410545003 A CN 201410545003A CN 104313578 A CN104313578 A CN 104313578A
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- Prior art keywords
- engine
- treatment method
- corrosive treatment
- layer
- amorphous substance
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Classifications
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/48—Ion implantation
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention relates to a method for anti-corrosion treatment of an engine. The method comprises the following steps: firstly, setting a siliconized layer on the aluminum alloy surface of the engine in a siliconizing manner; secondly, injecting an amorphous material into the siliconized layer in an ion implantation manner to form an insoluble co-envelop layer; and finally, forming a metal oxidized layer on the aluminum alloy surface of the engine, wherein the amorphous material comprises organic compounds or inorganic oxides.
Description
Technical field
The invention belongs to technical field of surface, refer to a kind of aluminium alloy engine surface anti-corrosion treatment method especially.
Background technology
Metallic corrosion, throughout national economy and national defense construction every field, endangers very serious.First, corrosion can cause great direct or indirect financial loss.According to the statistics of the country of industry prosperity, account for the 1.5%-4.2% of national economy total output value then because corroding the financial loss caused.Secondly, metallic corrosion, particularly stress corrosion and corrosion fatigue, often cause calamitous Serious Accident, jeopardize personnel safety.Moreover, corrode a large amount of metal of not only loss, and waste mass energy, every year because the metal of loss 10%-20% is wanted in corrosion.In addition, in the industrial production such as oil, chemical industry, agricultural chemicals, because corroding the equipment run, drip, leak caused, not only causing financial loss, also may make hazardous material situations, causing environmental pollution, jeopardizing people ' s health.Meanwhile, corrosion also may become the obstacle of production development and scientific-technical progress.
Existing automobile or ship engine are substantially based on aluminium alloy, and the corrosion that aluminium alloy occurs under various environmental activity can affect the performance of engine.In order to prevent the generation of corroding, the existing generation having had multiple technologies to be used for preventing from corroding.Wherein main aseptic technic adopts oxide film technology, antifouling paste technology and inhibiter technology.
In the guard technology of various metallic corrosion, inhibiter technology because technique is simple, suitability is strong and become one of effective and the most the most frequently used method.But inhibiter technology has obvious limitation, in the liquid phase medium that inhibiter is most widely used, inhibiter must have certain solubleness, and must reach certain concentration.Traditional inhibiter is comparatively large due to toxicity, causes pollution to environment; Meanwhile, because inhibiter consumption is less, extraneous small change will cause larger impact to system, and this brings very large difficulty also to the research of inhibition mechanism, and these factors limit further developing of inhibiter.
Summary of the invention
The object of this invention is to provide a kind of new technical scheme, can make by this technical scheme the anticorrosion ability improving engine and parts while not increasing metal thickness.
The present invention is achieved by the following technical solutions:
A kind of engine anti-corrosive treatment method, its step is, first arranges siliconising layer on engine aluminum alloy surface in siliconising mode; Secondly adopt ion implantation mode to inject amorphous substance at siliconising layer and form insoluble network layers altogether; Then metal oxide layer is formed in the aluminum alloy surface of engine.
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, condensed ring, conjugation heterocyclic compound, silicon-dioxide and Sodium Silicofluoride.
Described ion implantation energy is 50-70KeV magnitude;
Described network layers thickness is altogether 25-45nm.
Described injection rate is 55-70mg/cm
2.
The present invention's beneficial effect is compared with the existing technology:
By adopting ion implantation technique, amorphous substance is injected in metallic object, forms insoluble anti-corrosion layer, and this one deck is structure as a whole with metal, there will not be the problem that comes off in aseptic technic, in the amount of the outmost amount of metal lower than inside time ion implantation, do not affect the application of generation as oxide film and other aseptic technic, improve the corrosion resistance nature of engine aluminum alloy.
Embodiment
The following specifically describes embodiments of the present invention.
First by the blank of each parts of prior art processing engine, the aluminum alloy materials of each parts is carried out removing surface, on engine aluminum alloy surface, siliconising layer is set in siliconising mode; Choose for ion implantation amorphous substance, described amorphous substance includes organic compound or inorganic oxide.Described amorphous substance includes zirconium phosphate, chromic acid chromium, condensed ring, combination containing one or both materials such as sulfenyl heterocyclic compound, silicon-dioxide and Sodium Silicofluorides.The amorphous substance selected in embodiments of the invention 1-6 has only selected the amorphous substance of one-component, specifically in table 1.But because the toxic of chromic acid chromium is not selected usually.
Described ion implantation energy of the present invention is 50-70KeV magnitude; Selecting of concrete Implantation Energy is selected according to the purposes of material or the injection thickness determined, the thickness injecting amorphous substance is in the present invention 25-45nm, select the thickness that injects low when the environment of materials'use is severe or calling hierarchy is not high, the energy therefore injected is corresponding reduction also; When the bad environments of materials'use, the thickness of injection is thick, and the energy therefore injected is corresponding raising also.Described injection rate is 55-70mg/cm
2, Implantation Energy used in the present invention, injection thickness and unit dose are not all quantitatively final, just relative preferably data, and can adjust according to actual needs, such as Implantation Energy may reach more than 120KeV magnitude; Inject thickness and also may reach 75nm; Unit injects consumption also may reach 80mg/cm
2.But the minimum data required by this patent is master data, if lower than minimum data, Corrosion Protection cannot reach best.
Above specific embodiment only can as reference of the present invention instead of limitation of the present invention.
Owing to the present invention relates to anti-corrosion layer, therefore by implementing salt mist experiment below, and after a fixed length time, determining found corrosion area width, to make erosion resistance evaluation substantially.
1), salt mist experiment
Spray chamber, concentration is the NaCL solution of about 5%, and pressure is the pressurized air of 60-180 kPa, temperature can be remained on the temperature regulator of 87 ± 1 DEG C, be 95%-98% in relative humidity, temperature is under the condition of 87 ± 1 DEG C, sprays salt solution for a long time specific to each sample.
2), sample
Prepare each engine blank sample in the following manner, in the parts such as body and cylinder cap of engine 1/4 ratio cast engine, and carry out ion implantation to the aluminium alloy outside surface of these parts and carry out oxide film process, and going out vestige with graduating with cutter thereon.Comparative example is that the Al alloy block of the same size only carrying out oxide film and paint also goes out vestige with graduating with cutter thereon.
Showing by testing above, by adopting ion implantation mode that amorphous substance is injected into aluminum alloy surface certain thickness, effectively can stop the generation of corrosion phenomenon.
Claims (6)
1. an engine anti-corrosive treatment method, is characterized in that: its step is, first arranges siliconising layer on engine aluminum alloy surface in siliconising mode; Secondly adopt ion implantation mode to inject amorphous substance at siliconising layer and form insoluble network layers altogether; Then metal oxide layer is formed on engine aluminum alloy surface.
2. engine anti-corrosive treatment method according to claim 1, is characterized in that: described amorphous substance includes organic compound or inorganic oxide.
3. engine anti-corrosive treatment method according to claim 1 and 2, is characterized in that: described amorphous substance includes the combination of one or both materials such as zirconium phosphate, chromic acid chromium, condensed ring, conjugation heterocyclic compound, silicon-dioxide and Sodium Silicofluoride.
4. engine anti-corrosive treatment method according to claim 1, is characterized in that: described ion implantation energy is 50-70KeV magnitude.
5. engine anti-corrosive treatment method according to claim 1, is characterized in that: described network layers thickness is altogether 25-45nm.
6. engine anti-corrosive treatment method according to claim 1, is characterized in that: described injection rate is 55mg/cm
2-70mg/cm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545003.3A CN104313578A (en) | 2014-10-14 | 2014-10-14 | Method for anti-corrosion treatment of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545003.3A CN104313578A (en) | 2014-10-14 | 2014-10-14 | Method for anti-corrosion treatment of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104313578A true CN104313578A (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410545003.3A Pending CN104313578A (en) | 2014-10-14 | 2014-10-14 | Method for anti-corrosion treatment of engine |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864456A (en) * | 2012-09-05 | 2013-01-09 | 忻峰 | Aluminum alloy engine anti-corrosion treatment method |
| CN102899627A (en) * | 2012-09-05 | 2013-01-30 | 徐琼 | Anti-corrosion treatment method for aluminum alloy motor and parts |
| CN203854265U (en) * | 2014-01-23 | 2014-10-01 | 荣亚军 | Self-repairing anti-attrition composite layer on metal surface |
-
2014
- 2014-10-14 CN CN201410545003.3A patent/CN104313578A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864456A (en) * | 2012-09-05 | 2013-01-09 | 忻峰 | Aluminum alloy engine anti-corrosion treatment method |
| CN102899627A (en) * | 2012-09-05 | 2013-01-30 | 徐琼 | Anti-corrosion treatment method for aluminum alloy motor and parts |
| CN203854265U (en) * | 2014-01-23 | 2014-10-01 | 荣亚军 | Self-repairing anti-attrition composite layer on metal surface |
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Application publication date: 20150128 |