CN101538731A - Preparation method of gradient composite deposit and devices thereof - Google Patents
Preparation method of gradient composite deposit and devices thereof Download PDFInfo
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- CN101538731A CN101538731A CN200910047911A CN200910047911A CN101538731A CN 101538731 A CN101538731 A CN 101538731A CN 200910047911 A CN200910047911 A CN 200910047911A CN 200910047911 A CN200910047911 A CN 200910047911A CN 101538731 A CN101538731 A CN 101538731A
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Abstract
The invention discloses a preparation method of a gradient composite deposit and devices thereof. The method belonging to the galvanography comprises electroplating pretreatment, preparation of plating solution and plating processes, which is characterized in that: composite plating solution is controlled by a flow meter, and flows into a plating solution tank at uniform speed to participate in plating, wherein the flow set value of the flow meter is based on the content of enhanced particles in the composite plating solution and the gradient and thickness of the required deposit. The device for realizing the preparation method of the invention comprises the plating solution tank and a plating tank, which is characterized in that: the plating solution tank and the plating tank are communicated through a pipeline which is thereon provided with the flow meter. Compared with the prior art, the invention can precisely control the content of the enhanced particles in the deposit to change with linear gradient, and is convenient in operation and easy to be realized; in addition, the prepared gradient composite deposit has the advantages of compact and uniform structure and level surface, thus being suitable for automatic production and mass production.
Description
Technical field
The present invention relates to a kind of preparation method and device thereof of graded composite coating, specifically, relate to a kind ofly can make the enhanced particles content in the coating or be distributed in preparation method and the implement device thereof that certain orientation is the graded composite coating that linear gradient changes, belong to the material surface modifying technology field.
Background technology
Graded composite coating is meant the enhanced particles content in the coating or is distributed in certain orientation and changes in gradient.Because graded composite coating not only can improve the bonding strength between coating and body material, and can effectively alleviate the thermal stress issues that does not match and cause owing to thermal expansivity between coating and body material in the high-temperature heat treatment process, thereby improve its abrasion resistance.Therefore,, caused countries in the world Materials science workers' great interest, thought a kind of material that is rich in application potential by the function-graded material that the graded composite coating modification obtains.
At present, the preparation method of graded composite coating divides according to the state of material, can be divided into vapour deposition process, solid phase method and liquid phase method.Require when utilizing vapour deposition process to prepare graded composite coating under vacuum condition, to carry out; Adopt high-temperature operation when solid phase method prepares graded composite coating mostly, production process is numerous and diverse; Electrochemical plating are as a kind of low temperature liquid phase technology of preparing, because equipment is simple, easy to operate, have been widely used in the graded composite coating of preparation film-type at present.Usually adopt the MULTILAYER COMPOSITE coating technology when utilizing electrochemical plating to prepare the film-type graded composite coating, promptly on the basis of composite plating, wait and obtain graded composite coating by repeatedly changing disperse particles type, solution composition in the plating bath, but this method trivial operations, the content of enhanced particles is wayward, just can obtain needed gradient composition and is difficult to grasp because how many particles reusable plating bath adds.In recent years, some scholars attempt by changing pulse-repetition and dutycycle to obtain graded composite coating, promptly use reverse pulse power supply fixed current density, according to required gradient and thickness of coating, regularly different dutycycle and the pulse-repetitioies of conversion electroplated, but this method still exists the content of the enhanced particles in trivial operations problem and the coating or distribution to exist nonlinear gradient to change the defective of bringing.Therefore, in order to promote to electroplate the graded composite coating Development of Preparation Technology, press for exploitation a kind of content or distribution easy and simple to handle, that can make the enhanced particles in the coating and be the electrochemical plating that linear gradient changes.
Summary of the invention
Order of the present invention just provides preparation method and the device thereof that a kind of easy and simple to handle, content that can make the enhanced particles in the coating or distribution are the graded composite coating that linear gradient changes, to overcome the existing in prior technology defective and to meet the need of market.
For achieving the above object, the technical solution used in the present invention is as follows:
The preparation method of graded composite coating of the present invention, belong to electrochemical plating, comprise pre-electroplating treatment, plating bath preparation and electroplating process, it is characterized in that: composite plating bath is controlled by under meter, at the uniform velocity flow into and participate in plating in the plating tank, wherein the flow setting value of under meter is by the gradient and the thickness decision of the content and the required coating of the enhanced particles in the composite plating bath.
A kind of device of realizing the preparation method of graded composite coating of the present invention comprises bath trough and plating tank, it is characterized in that: pass through pipe connection between bath trough and plating tank, and the connecting tube between the two is provided with under meter.
Compare with existing similar technology, the content that the present invention can control the enhanced particles in the coating exactly is linear gradient to be changed, and easy and simple to handle, be easy to realize; In addition, prepared graded composite coating has compact and uniform structure, and the advantage of surfacing is suitable for automatic production and production in enormous quantities.
Description of drawings
Fig. 1 is an apparatus structure synoptic diagram of the present invention, among the figure: 1, bath trough; 2, plating tank; 3, under meter.
Fig. 2 is the prepared Ni-Al of embodiment 1
2O
3The microhardness figure of graded composite coating cross section.
Embodiment
Below with preparation Ni-Al
2O
3Graded composite coating is an example, and the present invention is described in further detail and completely:
Embodiment
Steps A, pre-electroplating treatment:
Clean electroplanting device shown in Figure 1 with scrubbing powder, clean with tap water then, clean drying for standby at last with distilled water;
To be cleaned by the A3 steel of plating material 50 * 20 * 2mm, No. 1000 sand paperings, drying, standby as electroplating cathode; With the nickel plate of 50 * 10mm as anode.
Step B, plating bath preparation:
At first take by weighing 50g NiSO
46H
2O and 10g NiCl
26H
2O places a beaker, adds an amount of pure water, and stirring, heating make it dissolving; In addition, take by weighing 10g H
3BO
3With 0.025g C
12H
25SO
4Na places another beaker, adds a small amount of pure water, heated and boiled; Then the solution in above-mentioned two beakers is mixed, and add pure water, be mixed with basic plating bath to 250ml;
With 5g nano particle Al
2O
3Add in an amount of above-mentioned basic plating bath with 2.5g dispersion agent poly carboxylic acid ammonium, make the Al in the composite plating bath
2O
3The content of nano particle reaches 20g/L, then with composite plating bath in room temperature ultrasonic agitation 15 minutes, so that nano particle Al
2O
3Be well dispersed in wherein.
Step C, plating:
Electroplanting device shown in Figure 1 is installed, and the under meter 3 in the attention device is in closing condition, will close nano particle Al then
2O
3Composite plating bath add in the bath trough 1, basic plating bath is added in the plating tank 2;
Electroplating cathode and anode are inserted;
Stir and heating bath trough 1 in composite plating bath and the basic plating bath to 45 in the plating tank 2 ℃;
Connect power supply and adjust voltage, make current density reach 2.5A/dm
2Opening under meter simultaneously and setting flux values is 10ml/min, electroplates;
Electroplate 30min, close electroplating power supply, take out and electroplate sample, close under meter, stop to electroplate.
Fig. 2 is prepared Ni-Al
2O
3The microhardness figure of graded composite coating cross section, as seen from the figure: microhardness is linear gradient and changes, and shows nanometer Al
2O
3Content in coating is linear gradient and distributes.
Claims (2)
1. the preparation method of a graded composite coating, belong to electrochemical plating, comprise pre-electroplating treatment, plating bath preparation and electroplating process, it is characterized in that: composite plating bath is controlled by under meter, at the uniform velocity flow into and participate in plating in the plating tank, wherein the flow setting value of under meter is by the gradient and the thickness decision of the content and the required coating of the enhanced particles in the composite plating bath.
2. a device of realizing the preparation method of the described graded composite coating of claim 1 comprises bath trough and plating tank, it is characterized in that: pass through pipe connection between bath trough and plating tank, and the connecting tube between the two is provided with under meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047911A CN101538731A (en) | 2009-03-20 | 2009-03-20 | Preparation method of gradient composite deposit and devices thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047911A CN101538731A (en) | 2009-03-20 | 2009-03-20 | Preparation method of gradient composite deposit and devices thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101538731A true CN101538731A (en) | 2009-09-23 |
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ID=41122110
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| CN200910047911A Pending CN101538731A (en) | 2009-03-20 | 2009-03-20 | Preparation method of gradient composite deposit and devices thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110129864A (en) * | 2019-05-30 | 2019-08-16 | 中国石油大学(华东) | A kind of Ni-based gradient coating of redox graphene-and preparation method thereof |
| CN111261040A (en) * | 2019-08-02 | 2020-06-09 | 拓米(成都)应用技术研究院有限公司 | Foldable flexible cover plate and manufacturing method thereof |
| CN111725520A (en) * | 2020-06-29 | 2020-09-29 | Oppo广东移动通信有限公司 | Current collector and preparation method thereof, electrode pole piece and preparation method thereof, and related products |
| CN112853442A (en) * | 2021-01-13 | 2021-05-28 | 杨木兰 | Semiconductor integrated circuit packaging device processing device |
-
2009
- 2009-03-20 CN CN200910047911A patent/CN101538731A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110129864A (en) * | 2019-05-30 | 2019-08-16 | 中国石油大学(华东) | A kind of Ni-based gradient coating of redox graphene-and preparation method thereof |
| CN110129864B (en) * | 2019-05-30 | 2020-04-28 | 中国石油大学(华东) | Reduced graphene oxide-nickel-based gradient coating and preparation method thereof |
| CN111261040A (en) * | 2019-08-02 | 2020-06-09 | 拓米(成都)应用技术研究院有限公司 | Foldable flexible cover plate and manufacturing method thereof |
| CN111725520A (en) * | 2020-06-29 | 2020-09-29 | Oppo广东移动通信有限公司 | Current collector and preparation method thereof, electrode pole piece and preparation method thereof, and related products |
| CN112853442A (en) * | 2021-01-13 | 2021-05-28 | 杨木兰 | Semiconductor integrated circuit packaging device processing device |
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Open date: 20090923 |