CN107267974A - A kind of method that metal super-hydrophobic surface is prepared based on electric arc processing - Google Patents
A kind of method that metal super-hydrophobic surface is prepared based on electric arc processing Download PDFInfo
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- CN107267974A CN107267974A CN201710445120.6A CN201710445120A CN107267974A CN 107267974 A CN107267974 A CN 107267974A CN 201710445120 A CN201710445120 A CN 201710445120A CN 107267974 A CN107267974 A CN 107267974A
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- China
- Prior art keywords
- electric arc
- silicon fluoride
- hydrophobic surface
- arc processing
- prepared based
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/013—Arc cutting, gouging, scarfing or desurfacing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/78—Pretreatment of the material to be coated
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
New hydrophobic material method, including herein below are prepared the invention provides a kind of：(1) surface it is micro-/nano porous structure prepare：Will be stand-by by conventional pretreated workpiece cleaning, using electric arc handling process obtained on its surface roughening it is micro-/receive porous surface；(2) silicic acid anhydride（Silicon fluoride moditied processing）：Impregnated on the sample handled by electric arc in silicon fluoride aqueous isopropanol, take out sample, it is dried naturally at ambient temperature, you can obtain super hydrophobic surface.Type of the present invention produces strong and lasting gas discharge phenomenon using arc welding between workpiece and the electrode of welding rod two and builds micro-nano porous surface, simultaneously, modified with reference to silicon fluoride low-surface energy substance, general two methods are combined together, the preparation for high-performance super hydrophobic surface provides new approaches；New preparation method have energy-conservation, quick, cost it is low, to prepare environmental requirement it is low, it is simple to operate the features such as.
Description
Technical field
The present invention relates to arc welding technology and process for treating surface, and in particular to one kind prepares metal based on electric arc processing and surpassed
The method of hydrophobic surface.
Background technology
In life production, many instrument devices in the with serious pollution environment such as many dirt, many water, are stained with these throughout the year
The more difficult cleaning of device after spot, and more serious influence can be caused to device function.In consideration of it, more and more people compel
Cut and wish that these devices can realize self-cleaning function, therefore how to make device that there is ultra-hydrophobicity to have in itself great for research
Meaning.Arc welding equipment is light, carries flexible, can be applied to various thickness, structure, the metal material of shape；Because it has
The characteristics of gas ionization and cathode electronics are launched, technical support is provided to prepare coarse micro-/porous surface of receiving.Silicon fluoride hydrolyzate
Modification to surface so that the angle of wetting on surface significantly becomes big.Therefore, the present invention combines both technical characteristics and prepared and surpasses
Hydrophobic surface.
The content of the invention
The purpose of the present invention is the metal watch to being surface-treated using the cathodic discharge effect in Arc Welding Process
Face prepares loose structure, and it is filled with coating and prepares super hydrophobic surface and combines welding technique, at surface there is provided one kind
Reason technology prepares economic, the efficient new technology of super hydrophobic surface.
To achieve the above object, present invention employs following technical proposals：
A kind of method that metal super-hydrophobic surface is prepared based on electric arc processing, it is characterised in that its method is：It is cloudy using arc welding
Pole flash-over characteristic, electron bombardment is carried out to plate surface, forms loose structure, increases surface roughness；Recycle silicon fluoride this
Plant low-surface energy substance loose structure is modified and filled, prepare metal super-hydrophobic surface.
Further, the above-mentioned method that metal super-hydrophobic surface is prepared based on electric arc processing, described electric arc processing tool
Body is：Using direct-current tungsten electrode argon-arc, protective gas and tungsten electrode, the both positive and negative polarity of power supply is connected into tungsten electrode and processed work respectively
Part, ignite electric arc, is discharged between tungsten electrode and sheet material, and the cathode electronics bombardment plate surface that electric arc is produced produces porous knot
Structure；Protective gas provides gas shield for electric arc processing procedure prevents oxidation on metal surface；Simultaneously can be in power control panel pair
Control is adjusted in arc voltage, arc current.
Further, the above-mentioned method that metal super-hydrophobic surface is prepared based on electric arc processing, described utilization silicon fluoride
Loose structure is modified and filled, concrete operations are：After silicon fluoride hydrolysis, after sheet material is soaked 2-8 hours, then in room
Dry or dry naturally under the conditions of temperature.
Above-mentioned prepares loose structure, and its principle is：Wetability as material a kind of important performance, by surface topography
Together decided on chemical composition.The wetability of the surface of solids is together decided on by its roughness and surface free energy, smooth plane
By changing surface free energy, its contact angle maximum can reach 120 °, and contact angle can be obtained by improving surface roughness
Very big raising.Contact angle is higher, and its hydrophobic performance is better.
Above-mentioned utilization silicon fluoride moditied processing, silicon fluoride is a kind of low-surface energy substance, because silicon fluoride can be hydrolyzed
And polycondensation reaction, the hydrophobic grouping in silicon fluoride has very important effect to reduction composite material surface free energy.
The beneficial effects of the invention are as follows：The capital equipment that the method for the present invention is used is arc welder, and the used time loads, without
When remove separately put, save, convenient, fast, cost it is low；It is not high, simple to operate to preparing environmental requirement.Coating filling process, it is former
Expect abundance, cheap, environmental pollution is small.Therefore the present invention specific certain application value and prospect.
Brief description of the drawings
Fig. 1 is outline flowchart of the invention.
Fig. 2 is the aluminum alloy surface SEM comparison diagrams of electric arc before and after the processing.
Fig. 3 is the comparison diagram that silicon fluoride is modified and do not modified.
Embodiment
As shown in figure 1, a kind of method that metal super-hydrophobic surface is prepared based on electric arc processing, is mainly comprised the following steps：
1st, electric arc processing pre-treatment：It is with conventional meanses such as alcohol, acetone that flat plate removing surface is totally stand-by.
2nd, electric arc is handled：The sheet material that conventional method is treated is connected with welding machine positive and negative terminal, and the clip for negative pole of ining succession is clamped
Sheet material, welding gun alignment plate surface.Electric arc size is controlled by changing welding current, voltage.After a period of time, formed porous
Rustic surface.
3rd, silicon fluoride moditied processing：The spin coating silicon fluoride hydrolyzate on the sheet coupon after chemical attack, finally will
The sample modified is put into drying in baking oven and prepares super hydrophobic surface.
By taking aluminum alloy plate materials as an example, preparation scheme is summarized as follows：(1) surface it is micro-/nano porous structure prepare：Will be by conventional
The cleaning of pretreated Al alloy parts is stand-by, using electric arc handling process aluminum alloy surface obtain roughening it is micro-/receive it is many
Hole surface；Electric arc processing procedure is as described above, you can micro-/nano porous structure, such as Fig. 2 are obtained on Al alloy parts surface, and Fig. 2 is
The aluminum alloy surface SEM comparison diagrams of electric arc before and after the processing（A/b is untreated, and c/d corresponds to the microgram after a/b processing respectively）.
(2) chemical attack：0.5~2h is handled in immersion acrylic acid solution after aluminium alloy cleaning after electric arc is handled, treatment temperature is
80±3℃；(3) silicic acid anhydride：The spin coating silicon fluoride hydrolyzate on the magnesium alloy sample after chemical attack, will finally be repaiied
The sample adornd is put into baking oven and dried, that is, can obtain superhydrophobic surface of aluminum alloy.
Fig. 3 is the comparison diagram that silicon fluoride is modified and do not modified（The left side is unmodified figure, and the right is figure after modification）.
Claims (3)
1. a kind of method that metal super-hydrophobic surface is prepared based on electric arc processing, it is characterised in that its method is：It is cloudy using electric arc
Pole flash-over characteristic, carries out electric arc processing to plate surface, porous knot is formed using the electron bombardment metal surface produced in electrode
Structure, increases surface roughness；Recycle this low-surface energy substance of silicon fluoride to modify and fill loose structure, prepare
Metal super-hydrophobic surface.
2. the method according to claim 1 that metal super-hydrophobic surface is prepared based on electric arc processing, it is characterised in that described
Electric arc processing be specially：Using direct-current tungsten electrode argon-arc, protective gas and tungsten electrode, the both positive and negative polarity of power supply is connected into tungsten electrode respectively
And processed workpiece, ignite electric arc, is discharged between tungsten electrode and sheet material, the cathode electronics bombardment plate surface production that electric arc is produced
Raw loose structure；Protective gas provides gas shield for electric arc processing procedure prevents oxidation on metal surface；Simultaneously can be in power supply control
Control is adjusted to arc voltage, arc current in panel processed.
3. the method according to claim 1 that metal super-hydrophobic surface is prepared based on electric arc processing, it is characterised in that utilize
Silicon fluoride is modified and filled to above-mentioned loose structure, and concrete operations are：After silicon fluoride hydrolysis, sheet material is soaked into 2-8 small
Shi Hou, then dry or dry naturally at ambient temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710445120.6A CN107267974A (en) | 2017-06-14 | 2017-06-14 | A kind of method that metal super-hydrophobic surface is prepared based on electric arc processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710445120.6A CN107267974A (en) | 2017-06-14 | 2017-06-14 | A kind of method that metal super-hydrophobic surface is prepared based on electric arc processing |
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| Publication Number | Publication Date |
|---|---|
| CN107267974A true CN107267974A (en) | 2017-10-20 |
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| CN201710445120.6A Pending CN107267974A (en) | 2017-06-14 | 2017-06-14 | A kind of method that metal super-hydrophobic surface is prepared based on electric arc processing |
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Citations (7)
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|---|---|---|---|---|
| CN2796925Y (en) * | 2005-04-06 | 2006-07-19 | 张文军 | Tungsten argon arc welding electrode |
| CN101476142A (en) * | 2008-12-24 | 2009-07-08 | 华南理工大学 | Preparation of metallic surface super-hydrophobic organic nano film |
| CN101850459A (en) * | 2009-03-31 | 2010-10-06 | 株式会社三社电机制作所 | Protection gas control device |
| CN101962769A (en) * | 2010-10-08 | 2011-02-02 | 中国航空工业集团公司北京航空制造工程研究所 | Method for preparing hydrophobic film on surface of material |
| CN103413641A (en) * | 2013-07-29 | 2013-11-27 | 西安交通大学 | Ice coating prevention power transmission aluminum wire and preparation method for surface super-hydrophobic state structural layer |
| CN104480423A (en) * | 2014-11-20 | 2015-04-01 | 中国科学院宁波材料技术与工程研究所 | Method for preparing superhydrophobic coating by adopting supersonic electric arc spaying technique |
| CN106191829A (en) * | 2016-07-29 | 2016-12-07 | 广东工业大学 | A kind of preparation method of medium carbon steel surface micronano Multi-scale model |
-
2017
- 2017-06-14 CN CN201710445120.6A patent/CN107267974A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2796925Y (en) * | 2005-04-06 | 2006-07-19 | 张文军 | Tungsten argon arc welding electrode |
| CN101476142A (en) * | 2008-12-24 | 2009-07-08 | 华南理工大学 | Preparation of metallic surface super-hydrophobic organic nano film |
| CN101850459A (en) * | 2009-03-31 | 2010-10-06 | 株式会社三社电机制作所 | Protection gas control device |
| CN101962769A (en) * | 2010-10-08 | 2011-02-02 | 中国航空工业集团公司北京航空制造工程研究所 | Method for preparing hydrophobic film on surface of material |
| CN103413641A (en) * | 2013-07-29 | 2013-11-27 | 西安交通大学 | Ice coating prevention power transmission aluminum wire and preparation method for surface super-hydrophobic state structural layer |
| CN104480423A (en) * | 2014-11-20 | 2015-04-01 | 中国科学院宁波材料技术与工程研究所 | Method for preparing superhydrophobic coating by adopting supersonic electric arc spaying technique |
| CN106191829A (en) * | 2016-07-29 | 2016-12-07 | 广东工业大学 | A kind of preparation method of medium carbon steel surface micronano Multi-scale model |
Non-Patent Citations (1)
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| 赵福令等: ""电火花加工技术的新应用-表面毛化"", 《电加工》 * |
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Application publication date: 20171020 |
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