CN108273713A - A method of improving the resistance to liquid metal corrosion of metal - Google Patents
A method of improving the resistance to liquid metal corrosion of metal Download PDFInfo
- Publication number
- CN108273713A CN108273713A CN201711435504.6A CN201711435504A CN108273713A CN 108273713 A CN108273713 A CN 108273713A CN 201711435504 A CN201711435504 A CN 201711435504A CN 108273713 A CN108273713 A CN 108273713A
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- metal
- temperature resistant
- liquid metal
- resistance
- coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention proposes a kind of method improving the resistance to liquid metal corrosion of metal, is to spray high-temperature resistant coating in surface treated metal surface, high-temperature resistant anti-corrosive coating is made after solidification；The metal is one kind in copper, aluminium, iron, copper alloy, aluminium alloy, ferroalloy, and the liquid metal is one kind in the alloys such as gallium, gallium indium, gallium indium tin, gallium indium tin zinc, bismuth, lead bismuth, bismuth indium tin, bismuth indium tin zinc.The present invention proposes a kind of method of the resistance to liquid metal corrosion of metal under high temperature environment by sturdy technical support, and by being surface-treated to basis material, one layer of high-temperature resistant anti-corrosive coating is formed in substrate material surface.The high-temperature anticorrosion coating of resistance to liquid metal corrosion prepared by the present invention, the problem of can effectively solve the problem that liquid metal corrosion metal under high temperature environment, extend the service life of metal and its alloy material.
Description
Technical field
The invention belongs to metal erosion to protect field, and in particular to a method of the processing resistance to liquid metal corrosion of metal.
Background technology
Based on the unique thermophysical property of low-melting-point metal, liquid metal not only can be in high-performance server, desktop computer, work
Extensive use is obtained in the chip heat pipe reason of control machine, laptop and communication base station, but also will be in many key areas
Play the part of indispensable role, such as：Advanced energy field (industrial exhaust heat utilization, solar energy thermal-power-generating, focus photocell it is cooling,
Fuel cell etc.), aviation thermal control field (satellite, thermal protection), field of photoelectric devices (such as projecting apparatus, power electronics devices),
Field of LED illumination and micro-/naiio-electro-meclianical systems, biochip and the electric vehicle etc. quickly grown in recent years, industry
Application value is huge.Based on the unique materialogy of liquid metal and thermophysical property, it is fine series will to be derived in industrial quarters
New method, application and product are expected to play huge effect in industrial, civilian or even military industry field.
However, with copper faint corrosion reaction can occur for gallium-base alloy at room temperature, but it is rapid with reactive aluminum.Gallium-base alloy heat
Boundary material corrodes aluminium violent, product presentation foam-like texture after corrosion, and strength reduction is easy to peel off.Therefore gallium-base alloy
Thermal interfacial material may not apply on Aluminium Radiator completely, half copper products of even half aluminium.
The compatibility assessment of liquid metal and underlying structure storeroom, which is that one of liquid metal heat radiation technology is basic, asks
Topic.The corrosion mechanism for understanding liquid metal, quantifies the corrosion rate of base material, studies feasible anti-corrosion method, and screening
Go out suitable corrosion resistant material, there is vital meaning for the reliability service of liquid metal heat radiation system.
Invention content
In view of the deficiencies of the prior art, it is an object of the invention to：The present invention is proposed by sturdy technical support
A method of the resistance to liquid metal corrosion of metal under high temperature environment, by being surface-treated to basis material, in matrix material
Expect that surface forms one layer of high-temperature resistant anti-corrosive coating.The high-temperature anticorrosion coating of resistance to liquid metal corrosion prepared by the present invention, can be effective
Solve the problems, such as liquid metal corrosion metal under high temperature environment, extend the service life of metal material.
It is another object of the present invention to propose the application of the method.
The purpose of the present invention is achieved through the following technical solutions：
A method of the resistance to liquid metal corrosion of metal is improved, is to spray high temperature resistant in surface treated metal surface
High-temperature resistant anti-corrosive coating is made in coating after solidification；
The metal is one kind in copper, aluminium, iron, copper alloy, aluminium alloy, ferroalloy, and the liquid metal is gallium, gallium
One kind in the alloys such as indium, gallium indium tin, gallium indium tin zinc, bismuth, lead bismuth, bismuth indium tin, bismuth indium tin zinc.
Wherein, the method for the surface treatment is one kind in blasting treatment, Shot Blasting, craft and power tool polishing
Or it is a variety of, metal surface reaches Sa2.5 grades after the surface treatment.
Preferably, using blasting treatment.Blasting treatment is to use compressed air for power, will be sprayed with forming high velocity spray beam
Material (copper ore, quartz sand, diamond dust, iron sand, sea sand) is ejected into need to handle workpiece surface at a high speed, make workpiece surface appearance or
Shape changes.Impact and shear action due to abrasive material to workpiece surface, make the surface of workpiece obtain certain cleannes
With different roughness, the mechanical performance of workpiece surface is made to be improved, therefore improve the fatigue resistance of workpiece, increases it
Adhesive force between coating extends the durability of film, is also beneficial to the levelling and decoration of coating.
Wherein, the high-temperature resistant coating be TR628 high-temperature resistant coatings, high temperature organosilicon paint, phosphate lead powder coating,
One kind in inorganic zinc coating.Above-mentioned coating is commercially available, such as high temperature organosilicon paint XZ-T001, XZ-T002.
Wherein it is preferred to using TR628 high-temperature resistant coatings.TR628 high-temperature resistant coatings are by organosilicon coating and inorganic resistance to height
Two technologies of thermo-paint combine, and the coating after room temperature curing has extremely strong high temperature resistance.Coating can not only be subjected to 50
1400 DEG C of hot environments of secondary 500ms, and continue 8 hours without there are any quality problems under 1270 DEG C of hot environment
(product has been used for the positive iron company in Henan five).The high temperature resistant antierosion experiment of the coating material is complete in May, 2008
At, using liquid hydrogen/oxygen propellant, the test vertically washed away, duration of test runs 500 seconds, the experimental results showed that, in hydrogen-oxygen fire
Arrow engine high-temperature, under the conditions of high-thrust long time continuous erosion, coating high temperature resistance is good, strong adhesive force, to cast iron table
Face plays a very good protection.
Wherein, the high-temperature resistant coating is first diluted with high temperature resistant diluent, and the high temperature resistant diluent is organosilicon
One kind in diluent, polyurethane lacquer diluent, alcohol-soluble inorganic zinc-rich lacquer diluent, the high-temperature resistant coating and the dilution
The volume ratio of agent is 20:1~5.
Wherein it is preferred to using organosilicon fire-resistant diluent.Organosilicon fire-resistant diluent is to reduce paint to glue
The material of degree or consistency can be used for the dilution of organosilicon fire-resistant paint.The distinctive degreasing function of diluent, goes before spray painting
Greasy dirt can be put into the part of machinery in solution and impregnate, play the role of oil stain, increase binding force.
Wherein, the high-temperature resistant coating is TR628 high-temperature resistant coatings, first uses organosilicon fire-resistant diluent dilute before spraying
It releases.
Wherein, the cured condition is cured under temperature >=5 DEG C and≤40 DEG C of environment.
Wherein, the spraying method is one kind in aerial spraying, airless spraying, brushing.
It is preferred that using airless spraying.Airless spraying is will be liquid using the booster pump of the forms such as plunger pump, diaphragm pump
Coating is pressurized, and is then delivered to airless spray gun through high-pressure hose, is finally sprayed to after release hydraulic pressure, instantaneous atomization at no gas jets
Coated article surface forms film layer.Due to not containing air in coating, so it is referred to as airless spraying, abbreviation airless spraying.
The coating of the sprayable different viscosities of airless sprayer.So that the epoch of artificial, inefficient, simple and crude tool have been taken leave of in metope application.This
Kind technique sends out the high pressure of 3000psi, and continuous high speed atomization, which is painted on various metopes, to form a film uniformly without brush mark.It is painted on various
It forms a film on metope uniformly without brush mark.And since work efficiency is high, service fee norm is even lower than brushes by hand.
It is highly preferred that thickness of dry film >=100 μm of the high-temperature resistant anti-corrosive coating；The high-temperature resistant anti-corrosive coating divides twice
Spraying, spraying first makes uniform thickness of dry film be 50 μm, followed by sprays second with full wetting state within 15~30 minutes, with
Reach required minimum thickness of dry film.
The application of the method is applied to the device fabrication of metal and liquid metal contacts, and the equipment includes liquid
State metal fluid heat exchanger, aluminum fin.
The components such as pipe, the piece of liquid metal fluid heat exchanger need to use the good metal of thermal conductivity be made, for example, copper, aluminium, iron,
The application of copper alloy, aluminium alloy, ferroalloy, this method improves the service life of heat transmission equipment.
The beneficial effects of the present invention are：
The present invention proposes a kind of method of the resistance to liquid metal corrosion of metal under high temperature environment by sturdy technical support,
By being surface-treated to basis material, one layer of high-temperature resistant anti-corrosive coating is formed in substrate material surface.Prepared by the present invention
The high-temperature anticorrosion coating of resistance to liquid metal corrosion can effectively solve the problem that liquid metal corrosion metal and its alloy under high temperature environment
The problem of, extend the service life of metal and its alloy material.
Description of the drawings
Fig. 1 is the corrosion-inhibiting coating preparation flow figure of the resistance to liquid metal corrosion of the present invention.
Fig. 2 is high-temperature resistant anti-corrosive coating morphology figure prepared by embodiment.
Fig. 3 is that embodiment liquid metal gallium in environment of 350 DEG C of vacuum degrees less than 0.1Pa corrodes 240 hours shape appearance figures.
Fig. 4 is that comparative example liquid metal gallium in environment of 350 DEG C of vacuum degrees less than 0.1Pa corrodes 240 hours shape appearance figures.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.As without especially
Illustrate, the means used in embodiment are techniques known in the art means.
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
By taking liquid metal gallium, metal aluminium flake, TR628 high-temperature resistant coatings, organosilicon fire-resistant diluent as an example, prepares coating
Flow such as Fig. 1.
The present embodiment provides a kind of methods of the resistance to liquid metal corrosion of metal under high temperature environment, including：
(a) Treatment of Metal Surface：The method for using sandblasting carries out table to size for the aluminium flake of 30mm × 20mm × 1mm one side
Surface treatment reaches Sa2.5 grades.
(b) preparation of fire-resistant anticorrosion paint：15ml organosilicon fire-resistant diluents are taken to be added to the resistance to height of 100ml TR628
In thermo-paint, dilutes and stir 10min and make even phase.
(c) preparation of high-temperature resistant anti-corrosive coating：The high-temperature resistant anti-corrosive obtained by step b is applied using the method for airless spraying
Expect in the aluminium flake one side after point twice are sprayed on handled by step a, it is 50 μm, 20 points to spray first and be allowed to uniform thickness of dry film
Clock followed by sprays second with full wetting state, and it is 100 μm to reach thickness of dry film.
Gained high-temperature resistant anti-corrosive coating morphology is shown in Fig. 2, and 0.5ml liquid metal galliums are dropped in the processed aluminium flake tables of step c
Face is placed in environment of 350 DEG C of vacuum degrees less than 0.1Pa and corrodes 240 hours (Fig. 3 left figures), removes the surface topography after drop
See Fig. 3 right figures, Fig. 2 and Fig. 3 comparisons be not as can be seen that high-temperature resistant anti-corrosive coating changes, it was demonstrated that does not corrode.
Comparative example
The aluminium flake that size is 30mm × 20mm × 1mm is polishing to No. 1200 with abrasive paper for metallograph step by step, cleans up drying
Afterwards, 0.5ml liquid metal galliums are dropped in into processed aluminum flake surface, is placed in environment of 350 DEG C of vacuum degrees less than 0.1Pa and corrodes
240 hours, pattern was shown in Fig. 4 (right figure of Fig. 4 is to remove the evidence of corrosion left after drop), and metal surface does not form oxidation
Dissolved corrosion occurs for film.
Finally it should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although reference
Preferred embodiment describes the invention in detail, it will be appreciated by those skilled in the art that can be to the technical side of the present invention
Case is modified or replaced equivalently, and without departing from the spirit of the technical scheme of the invention and range, should all be covered in this hair
In bright right.
Claims (9)
1. a kind of method improving the resistance to liquid metal corrosion of metal, which is characterized in that be in surface treated metal surface
High-temperature resistant coating is sprayed, high-temperature resistant anti-corrosive coating is made after solidification；
The metal is one kind in copper, aluminium, iron, copper alloy, aluminium alloy, ferroalloy, and the liquid metal is gallium, gallium indium, gallium
One kind in the alloys such as indium tin, gallium indium tin zinc, bismuth, lead bismuth, bismuth indium tin, bismuth indium tin zinc.
2. the method for improving the resistance to liquid metal corrosion of metal according to claim 1, which is characterized in that the surface treatment
Method is one or more in blasting treatment, Shot Blasting, craft and power tool polishing, the gold after the surface treatment
Metal surface reaches Sa2.5 grades.
3. the method for improving the resistance to liquid metal corrosion of metal according to claim 1, which is characterized in that the high-temperature resistant coating
For one kind in TR628 high-temperature resistant coatings, high temperature organosilicon paint, phosphate lead powder coating, inorganic zinc coating.
4. the method for improving the resistance to liquid metal corrosion of metal according to claim 1, which is characterized in that the high-temperature resistant coating
First be diluted with high temperature resistant diluent, the high temperature resistant diluent be organosilicon fire-resistant diluent, polyurethane lacquer diluent,
The volume ratio of one kind in alcohol-soluble inorganic zinc-rich lacquer diluent, the high-temperature resistant coating and the diluent is 20:1~5.
5. the method for improving the resistance to liquid metal corrosion of metal according to claim 4, which is characterized in that the high-temperature resistant coating
For TR628 high-temperature resistant coatings, first dilution agent is diluted with organosilicon fire-resistant before spraying.
6. according to any one of Claims 1 to 5 method for improving the resistance to liquid metal corrosion of metal, which is characterized in that described
Cured condition is cured under temperature >=5 DEG C and≤40 DEG C of environment.
7. according to any one of Claims 1 to 5 method for improving the resistance to liquid metal corrosion of metal, which is characterized in that described
Spraying method is one kind in aerial spraying, airless spraying, brushing.
8. according to any one of Claims 1 to 5 method for improving the resistance to liquid metal corrosion of metal, which is characterized in that described
Thickness of dry film >=100 μm of high-temperature resistant anti-corrosive coating；The high-temperature resistant anti-corrosive coating point twice spray, and spraying first makes uniformly
Thickness of dry film is 50 μm, followed by sprays second with full wetting state within 15~30 minutes, to reach required minimum dry film
Thickness.
9. the application of claim 1~8 any one of them method, which is characterized in that be applied to metal and liquid metal contacts
Device fabrication, the equipment includes liquid metal fluid heat exchanger, aluminum fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435504.6A CN108273713A (en) | 2017-12-26 | 2017-12-26 | A method of improving the resistance to liquid metal corrosion of metal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711435504.6A CN108273713A (en) | 2017-12-26 | 2017-12-26 | A method of improving the resistance to liquid metal corrosion of metal |
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| CN108273713A true CN108273713A (en) | 2018-07-13 |
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| CN201711435504.6A Pending CN108273713A (en) | 2017-12-26 | 2017-12-26 | A method of improving the resistance to liquid metal corrosion of metal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161869A (en) * | 2018-09-12 | 2019-01-08 | 云南科威液态金属谷研发有限公司 | A method of corrosion-inhibiting coating is formed in metal part surface |
| CN109486324A (en) * | 2018-11-09 | 2019-03-19 | 中建铝新材料福建有限公司 | A kind of plated film aluminum alloy mould plate and its coating process |
| CN112964544A (en) * | 2021-03-11 | 2021-06-15 | 天津大学 | In-situ double-shaft mechanical test device used in lead-bismuth environment |
| WO2024064483A1 (en) | 2022-09-23 | 2024-03-28 | Caterpillar Inc. | High-velocity air-fuel coatings for conductor corrosion resistance |
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| CN105386051A (en) * | 2014-09-09 | 2016-03-09 | 中国科学院金属研究所 | Method for improving resistance of martensite heat-resistant steel to liquid metal corrosion |
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- 2017-12-26 CN CN201711435504.6A patent/CN108273713A/en active Pending
Patent Citations (1)
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| CN105386051A (en) * | 2014-09-09 | 2016-03-09 | 中国科学院金属研究所 | Method for improving resistance of martensite heat-resistant steel to liquid metal corrosion |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161869A (en) * | 2018-09-12 | 2019-01-08 | 云南科威液态金属谷研发有限公司 | A method of corrosion-inhibiting coating is formed in metal part surface |
| CN109486324A (en) * | 2018-11-09 | 2019-03-19 | 中建铝新材料福建有限公司 | A kind of plated film aluminum alloy mould plate and its coating process |
| CN109486324B (en) * | 2018-11-09 | 2021-03-23 | 中建铝新材料福建有限公司 | Film-coated aluminum alloy template and film-coating process thereof |
| CN112964544A (en) * | 2021-03-11 | 2021-06-15 | 天津大学 | In-situ double-shaft mechanical test device used in lead-bismuth environment |
| CN112964544B (en) * | 2021-03-11 | 2023-02-28 | 天津大学 | In-situ double-shaft mechanical test device used in lead-bismuth environment |
| WO2024064483A1 (en) | 2022-09-23 | 2024-03-28 | Caterpillar Inc. | High-velocity air-fuel coatings for conductor corrosion resistance |
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Application publication date: 20180713 |