CN109321916A - A method of the raising coating binding force based on spark discharge - Google Patents
A method of the raising coating binding force based on spark discharge Download PDFInfo
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- CN109321916A CN109321916A CN201811514800.XA CN201811514800A CN109321916A CN 109321916 A CN109321916 A CN 109321916A CN 201811514800 A CN201811514800 A CN 201811514800A CN 109321916 A CN109321916 A CN 109321916A
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- matrix
- coating
- wire electrode
- binding force
- spark discharge
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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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
- C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
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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)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The method for improving coating binding force based on spark discharge that the present invention relates to a kind of.Firstly, the more piece wire electrodes same or similar with the lattice constant of coating material to be prepared and lattice constant are fixed using fixture, and wire electrode rotation is driven by the rotation of fixture；Wire electrode and basis material connect the two poles of the earth of the pulse power respectively simultaneously；When the distance between wire electrode and basis material reach discharging gap, wire electrode will generate electric discharge with basis material, generate many electric discharge pits in matrix surface；Partial electrode silk is melted and is securely embedded in matrix surface simultaneously；Finally in substrate material surface prepares coating.This mode can not only form roughened layer in matrix surface, increase the contact area of matrix and coating, and the material same or similar with coating material lattice constant and lattice constant has been inlayed in matrix surface, binding force will further improve.In terms of operation of the present invention, it is at low cost, it can be achieved that various conductive material coatings preparation.
Description
Technical field
The present invention relates to coating preparation field more particularly to a kind of sides of the raising coating binding force based on spark discharge
Method.
Background technique
In coating preparation field, the binding force of coating and matrix is to influence the most important index of coating service performance.Generally
The principal mode of coating failure shows as coating cracking and falls off.And the main reason for generating above-mentioned failure mode be coating with
Binding force between matrix is insufficient.The mode for improving coating binding force mainly has: 1) increase contact area, using mechanical means or
Electrochemical etching method increases metal base surface roughness, can also improve binding force；2) it using minimum mispairing, when matrix and applies
Layer lattice constant and lattice constant are closer, and the two matching degree when combining is higher, and binding force is better；3) coating gradients
Growth can make coating achieve the effect that gradient is grown, can be effectively improved the mutation band of coating composition by the variation of controling parameter
The stress variation come greatly reduces the residual stress of coating, is conducive to the binding force for improving coating and matrix；4) it is added in plastotype
Interbed.Logical coating it is simple include coating and matrix two parts, when the two characteristic mismatches, matrix to material between coating
The mutation of matter causes the binding force of coating and matrix to substantially reduce, and introduces transition zone (middle layer), can reduce and be mutated band by material
The stress variation come improves binding force.
The present invention can not only form roughened layer in matrix surface, increase coating and base in the way of spark discharge
The contact area of body material, while electrode wire material will be embedded in substrate material surface in a discrete fashion, when selection and coating
When the electrode wire material of lattice constant and lattice constant, coating binding force can be further improved.
Summary of the invention
The present invention is directed to the situation of current coating binding force deficiency, proposes a kind of raising coating based on spark discharge
The method of binding force utilizes spark discharge using wire electrode same or similar with coating material lattice constant and lattice constant
Mode form intensive electric discharge pit in substrate material surface, increase contact area；It can securely be inlayed in matrix surface simultaneously
Electrode wire material, and matrix surface prepares coating after treatment, the binding force of coating can be effectively improved using the method.
In order to achieve the above objectives, the following technical solutions are proposed by the present invention:
A method of the raising coating binding force based on spark discharge.It is characterized by:
1) the more piece wire electrodes same or similar with coating material lattice constant to be prepared and lattice constant are fixed using fixture,
And fixture rotation is driven by motor, so that wire electrode be driven to rotate；
2) wire electrode and matrix connect the two poles of the earth of the pulse power respectively, when the distance between wire electrode and matrix reach discharging gap
When, wire electrode will generate electric discharge with matrix, to generate many electric discharge pits in matrix surface, can increase the knot of matrix and coating
Area is closed, while partial electrode silk is melted and is securely embedded in matrix surface, thus in matrix surface dense distribution and base
The dispersive electrode wire material of body material firm connection；
3) impurity for removing matrix surface, in matrix surface prepares coating.
The diameter of the wire electrode is 0.01mm ~ 1mm；
The voltage of the pulse power is 10V ~ 100V, and peak point current is 0.1A ~ 50A；Duty ratio is 1% ~ 100%；
The rotation speed of the wire electrode is 10rmp ~ 1000rpm；
The resistivity of the electrode wire material and basis material is respectively less than 1 Ω cm.
Compared with prior art, the invention has the following beneficial technical effects:
1. a kind of method of raising coating binding force based on spark discharge provided by the invention, easy to operate, at low cost, fit
The generation of oxidation is avoided that when using inert gas shielding for the improvement of Large area coatings binding force；
2. a kind of method of raising coating binding force based on spark discharge provided by the invention, increases coating and base realizing
While contact level product, the material identical or close with coating material lattice constant and lattice constant can be added in matrix surface
Material, to further increase binding force；
3. a kind of method of raising coating binding force based on spark discharge provided by the invention, applied widely, can use
In the raising of various conductive coating binding forces.
Detailed description of the invention
Fig. 1 is the schematic diagram of matrix surface mosaic electrode wire material
In figure, 1. motors, 2. fixtures, 3. wire electrodes, 4. matrixes, 5. pulse powers.
Specific embodiment
Embodiment
1 the invention will be described in further detail with reference to the accompanying drawing:
A method of the raising coating binding force based on spark discharge, comprising the following steps:
1. its surface is polished and polished using 45 steel as matrix (4), and clean up；
2. it is the copper wire of 0.1mm that wire electrode (3), which selects diameter, it is fixed on fixture (2), while is driven by motor (1)
Fixture (2) rotation, finally drives wire electrode (3) to rotate with the revolving speed of 200rpm；
3. being 1KHz by frequency, the cathode for the pulse power (5) that open-circuit voltage 40V, peak point current 2A, duty ratio are 50%
Give wire electrode (3) into electricity by fixture (2), anode connects matrix (4), and the same area discharge period is 30s；
4. being dried using the impurity on supersonic cleaning machine removal matrix (4) surface, and using vacuum drying oven；
5. the preparation of copper coating is realized on processed matrix (4) surface, by the way of plating with a thickness of 30 μm.
Tensile peel experiment, testing coating binding force are carried out to final coating.Test result shows in the same terms
Under, 20% or more is improved using the coating binding force that method provided by the invention obtains.
Claims (5)
1. a kind of method of the raising coating binding force based on spark discharge, it is characterised in that:
1) utilize fixture (2) by the more piece wire electrodes same or similar with coating material lattice constant to be prepared and lattice constant
(3) fixed, and fixture (2) rotation is driven by motor (1), so that wire electrode (3) be driven to rotate；
2) wire electrode (3) and matrix (4) connect the two poles of the earth of the pulse power (5) respectively, when between wire electrode (3) and matrix (4) away from
When from reaching discharging gap, wire electrode (3) will generate electric discharge with matrix (4), so that it is recessed to generate many electric discharges on matrix (4) surface
Hole, can increase the bonded area of matrix (4) and coating, while partial electrode silk (3) is melted and is securely embedded in matrix (4) table
Face, thus discrete electrical polar filament (3) material being firmly combined in matrix (4) surface dense distribution with matrix (4) material；
3) impurity for removing matrix (4) surface, in matrix (4) surface prepares coating.
2. a kind of method of raising coating binding force based on spark discharge according to claim 1, it is characterised in that:
The diameter of the wire electrode (3) is 0.01mm ~ 1mm.
3. a kind of method of raising coating binding force based on spark discharge according to claim 1, it is characterised in that:
The frequency of the pulse power (5) is 10Hz ~ 10KHz, and voltage is 10V ~ 100V, and peak point current is 0.1A ~ 50A；Duty ratio
It is 1% ~ 100%.
4. a kind of method of raising coating binding force based on spark discharge according to claim 1, feature exist
In: the rotation speed of the wire electrode (3) is 10rpm ~ 1000rpm.
5. a kind of method of raising coating binding force based on spark discharge according to claim 1, feature exist
In: the resistivity of wire electrode (3) material and matrix (4) material is respectively less than 1 Ω cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811514800.XA CN109321916B (en) | 2018-12-12 | 2018-12-12 | Method for improving coating binding force based on electric spark discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811514800.XA CN109321916B (en) | 2018-12-12 | 2018-12-12 | Method for improving coating binding force based on electric spark discharge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109321916A true CN109321916A (en) | 2019-02-12 |
| CN109321916B CN109321916B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811514800.XA Active CN109321916B (en) | 2018-12-12 | 2018-12-12 | Method for improving coating binding force based on electric spark discharge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115074721A (en) * | 2022-07-28 | 2022-09-20 | 山东正诺新能源装备研究院有限公司 | Preparation process of high-flux tube porous coating |
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| CN1851058A (en) * | 2006-05-29 | 2006-10-25 | 西北工业大学 | Method for reinforcing-depositing composite modified titanium alloy surface using electric spark with ion beam |
| CN106425346A (en) * | 2016-10-21 | 2017-02-22 | 重庆夫日用品有限责任公司 | Toothbrush mold machining process |
| CN106695584A (en) * | 2016-11-30 | 2017-05-24 | 湖北重泰研磨工具有限公司 | Sponge grinding block production line and method |
| CN206368194U (en) * | 2016-11-22 | 2017-08-01 | 常州大学 | Coating preparation facilities based on spark discharge |
| JP2017160465A (en) * | 2016-03-07 | 2017-09-14 | 東レ株式会社 | Device for charging and closely contacting sheet, vacuum apparatus for depositing film on sheet, and method for manufacturing sheet having thin film |
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2018
- 2018-12-12 CN CN201811514800.XA patent/CN109321916B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851058A (en) * | 2006-05-29 | 2006-10-25 | 西北工业大学 | Method for reinforcing-depositing composite modified titanium alloy surface using electric spark with ion beam |
| JP2017160465A (en) * | 2016-03-07 | 2017-09-14 | 東レ株式会社 | Device for charging and closely contacting sheet, vacuum apparatus for depositing film on sheet, and method for manufacturing sheet having thin film |
| CN106425346A (en) * | 2016-10-21 | 2017-02-22 | 重庆夫日用品有限责任公司 | Toothbrush mold machining process |
| CN206368194U (en) * | 2016-11-22 | 2017-08-01 | 常州大学 | Coating preparation facilities based on spark discharge |
| CN106695584A (en) * | 2016-11-30 | 2017-05-24 | 湖北重泰研磨工具有限公司 | Sponge grinding block production line and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115074721A (en) * | 2022-07-28 | 2022-09-20 | 山东正诺新能源装备研究院有限公司 | Preparation process of high-flux tube porous coating |
| CN115074721B (en) * | 2022-07-28 | 2022-11-04 | 山东正诺新能源装备研究院有限公司 | Preparation process of high-flux tube porous coating |
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| Publication number | Publication date |
|---|---|
| CN109321916B (en) | 2023-04-07 |
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