CN102636429A - Friction control method of magnetic micro-nano texture surface and device - Google Patents
Friction control method of magnetic micro-nano texture surface and device Download PDFInfo
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- CN102636429A CN102636429A CN2012101312552A CN201210131255A CN102636429A CN 102636429 A CN102636429 A CN 102636429A CN 2012101312552 A CN2012101312552 A CN 2012101312552A CN 201210131255 A CN201210131255 A CN 201210131255A CN 102636429 A CN102636429 A CN 102636429A
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Abstract
The invention relates to a friction control method of magnetic micro-nano texture surface and a device, and belongs to the field of surface texture frictional wear control. The friction control method comprises the following steps of: firstly, preparing a surface with the micro-nano texture: implementing laser photoetching on a sample and carrying out electrochemical deposition on the sample after finishing the laser photoetching so as to prepare a regular plating layer with the micro-nano texture, wherein the laser power parameter is arranged in the range of 5-100 mW, the electrochemical deposition parameter is that the forward and reverse impulse working time is 5 ms-1 s, the frequency is 0-200 Hz, the current density is 10-50 mA/cm<2>, the keeping plating solution temperature is 30 DEG C-60 DEG C, the ph value is 3-5, and the stirring rate is 30-90r/min; secondly, carrying out magnetization treatment: carrying out magnetization treatment on the sample, wherein the magnetic field intensity is 2.25*104-4.5*104A/m; and thirdly, carrying out a frictional wear test: fixing the sample on a friction wear testing machine so as to applying a magnetic field to the sample for magnetization, and meanwhile, starting the friction wear testing machine for the frictional wear test, thus obtaining a friction factor. The friction control method and the device provided by the invention have the advantages that the structure and constituent of the composite plating layer are controllable, the device can carry out real-time regulation and control on the magnetic field intensity, and the application range is wide.
Description
Technical field
The present invention relates to a kind of surface structure rubbing wear control method and device thereof, particularly a kind of method of friction control and device of magnetic micro-nano texture surface.
Background technology
Along with science and technology and development of human society, more and more extremalization of the service condition of tribological material, complicated, this wearing quality to material, antifriction quality etc. have proposed increasingly high requirement; Equally, some situation even also requirement increase friction.On the basis of traditional tribological material, through the surface engineering technology research and development, mantle friction is controlled to be optimization mechanical system tribological property, the solution fret wear provides one effectively, also to be scheme and the approach that has vitality.
At microscopic fields, the Micro Lub knowledge topic under a large amount of magnetic field environments has also appearred in the development that micro-system is advanced by leaps and bounds.The development of nanosecond science and technology has caused a revolution of device miniatureization, makes various micro-system emerge in multitudes, like MEMS (MEMS), MOEMS (MOEMS), microfluid and biochip system etc.But; Also highlighted in its fast-developing behind and much to have demanded the problem exploring and solve urgently, the friction sticking problem under regulating and control like appearance, the solution of rubbing wear problem, the solution of microstructure sticking problem, the outfield of new rule, new phenomenon under the magnetic field condition with industrialization process.
Summary of the invention
The objective of the invention is to provide a kind of method of friction control and device of magnetic micro-nano texture surface, solve the problem that the friction under rubbing wear, microstructure adhesion and the outfield regulation and control under the magnetic field condition adheres to.
The objective of the invention is to realize like this: the concrete steps of method of friction control are:
1, prepares the surface that has micro-nano texture: be used in combination through laser lithography and electrochemical deposition.At first sample is implemented laser lithography, in the spin coating of substrate material surface photoresist, sol evenning machine carries out spin coating, oven dry then, dries 20min down at 70 ~ 110 ℃; Regulate the average power of laser, scope is being located at 5 ~ 100mW, makes laser form interference fringe at sample surfaces; Close pulse laser system, take out sample, dry 20min down at 80 ~ 100 ℃; At last sample is put into developer solution, after the part of making public on the photoresist is developed the liquid dissolving, take out sample, with the clean developer solution of deionized water rinsing, air dry; Again sample is carried out electrochemical deposition after accomplishing; Electrochemical deposition parameter: positive and negative pulse working time 5ms ~ 1s, frequency 0 ~ 200Hz, current density 10 ~ 50mA/cm
2, work is than 1 ~ 10, keeps 30 ℃ ~ 60 ℃ of bath temperatures, ph value 3 ~ 5, stirring rate 30 ~ 90r/min, prepares regular micro-nano texture coating;
2, magnetization is handled: sample is magnetized processing, and magnetic field intensity is 2.25 * 10
4~ 4.5 * 10
4A/m;
3, friction and wear test: sample is fixed on the friction wear testing machine, and the coil electricity to friction wear testing machine applies magnetic field to sample; Magnetize; Open friction wear testing machine simultaneously and carry out frictional wear experiment, experiment obtains friction factor after accomplishing.
Described magnetization is treated to the method for magnetizing in advance: in the magnetic field that the sample for preparing is placed in the magnetic field of permanent magnet or hot-wire coil produces, make sample have magnetic, magnetic field intensity is 2.25 * 10
4~ 4.5 * 10
4A/m; On friction wear testing machine, carry out frictional wear experiment then, the mode of operation that adopts the pin mill to decrease is set rotating speed 50 ~ 300r/min, time 10 ~ 30min, imposed load 0.1 ~ 50N, just can begin experiment afterwards, draws experimental result at last.
Perhaps described magnetization is treated to real-time monitoring magnetic field intensity method: direct supply, coil are connected with friction wear testing machine successively; Coil is wrapped on the friction wear testing machine; Sample places in the coil, applies adjustable voltage, and the magnetic field intensity that coil is produced is controlled at 2.25 * 10
4~ 4.5 * 10
4A/m; The mode of operation that adopts the pin mill to decrease is set rotating speed 50 ~ 300r/min, time 10 ~ 30min, imposed load 0.1 ~ 50N, during the work of pin dish, and the holding coil energising, the magnetic field intensity that coil is produced is controlled at 2.25 * 10
4~ 4.5 * 10
4A/m; To the experiment test of sample enforcement rubbing wear, experiment draws experimental result after accomplishing.
Control device includes: sample, pin, load, friction wear testing machine and coil; Sample is positioned at the below of friction wear testing machine, and the friction wear testing machine lower end is a pin, and the upper end is a load, middle winding around, and pin contacts with sample.
Beneficial effect owing to adopted such scheme, carries out control ratio to the tribological property of sample after the magnetization and tribological property without magnetized sample.Prepare sample through pulse laser photoetching and electrochemical deposition, before the frictional wear experiment sample is magnetized in advance; Magnetize sample in the magnetic field that perhaps in experimentation, utilizes hot-wire coil to produce, to reach the purpose of real-time monitoring.Based on different actual needs, realize the optimization of tribological property through the change in magnetic field.
The structure of composite deposite, controllable component.Through regulating the parameters in laser lithography and the electrochemical deposition process, can effectively prepare the composite deposite of structure, controllable component, thereby in the texture of material surface formation rule.Thereby reduce the coating internal stress, effectively suppress the expansion of rubbing crack and spread the intensity and the plasticity_resistant deformation performance of raising coating.
The real-time monitoring of magnetic field intensity.When the frictional wear experiment that carries out on the friction wear testing machine that is employed in after improving; Because what use is that hot-wire coil produces externally-applied magnetic field; Therefore can change the magnetic field intensity that applies through changing size of current at any time; And will not take off by sample, this has just realized material surface is applied the real-time monitoring of magnetic field intensity.
The variation of research mode.Magnetized in advance sample can be studied the tribological property of material when applying the different magnetic field direction; The magnetic field intensity that the frictional wear experiment that carries out on the friction wear testing machine after improving then can real-time regulated applies lays particular emphasis on and studies the influence of different magnetic field intensity to tribological property.
Applied range.Laser lithography coupling electrochemical deposition can prepare the composite deposite of multiple different structure, different metal content; Simultaneously, the rubbing wear under the magnetic field condition is applicable to all magnetic materials, and no matter whether it has texture.
Advantage: the structure of composite deposite, controllable component.The real-time monitoring of magnetic field intensity.Applied range.To the control effect effective integration of friction, collaborative coupling, carried out antifriction antiwear or increase rubbing according to actual condition to material surface in the friction control technology of the friction control technology of surface structuration, composite deposite and magnetic field.Be implemented in the accurate control of magnetic field condition in magnetic field environment magnetic material friction pair to rubbing wear.
Description of drawings
Fig. 1 prepares Principle of Process figure for sample surfaces structuring coating.
What Fig. 2 a showed is the schematic diagram that untextured common sample one is carried out frictional wear experiment.
What Fig. 2 b showed is the schematic diagram that the sample two that has micro-nano texture is carried out frictional wear experiment.
What Fig. 3 a showed is the schematic diagram that untextured common sample one is carried out frictional wear experiment.
What Fig. 3 b showed is the schematic diagram that the sample two that has micro-nano texture is carried out frictional wear experiment.
Embodiment
In conjunction with the preparation Principle of Process figure of Fig. 1, Fig. 2 and Fig. 3 example, two kinds of frictional wear experiment schematic diagram SHAPE * MERGEFORMAT detail of the present invention and performance are done following explanation:
Embodiment 1: the concrete steps of method of friction control are:
1, prepares the surface that has micro-nano texture: be used in combination through laser lithography and electrochemical deposition.At first sample is implemented laser lithography, in the spin coating of substrate material surface photoresist, sol evenning machine carries out spin coating, oven dry then, dries 20min down at 70 ~ 110 ℃; Regulate the average power of laser, scope is being located at 5 ~ 100mW, makes laser form interference fringe at sample surfaces; Close pulse laser system, take out sample, dry 20min down at 80 ~ 100 ℃; At last sample is put into developer solution, after the part of making public on the photoresist is developed the liquid dissolving, take out sample, with the clean developer solution of deionized water rinsing, air dry; Again sample is carried out electrochemical deposition after accomplishing; Electrochemical deposition parameter: positive and negative pulse working time 5ms ~ 1s, frequency 0 ~ 200Hz, current density 10 ~ 50mA/cm
2, work is than 1 ~ 10, keeps 30 ℃ ~ 60 ℃ of bath temperatures, ph value 3 ~ 5, stirring rate 30 ~ 90r/min, prepares regular micro-nano texture coating;
2, magnetization is handled: sample is magnetized processing, and magnetic field intensity is 2.25 * 10
4~ 4.5 * 10
4A/m;
3, friction and wear test: sample is fixed on the friction wear testing machine, and the coil electricity to friction wear testing machine applies magnetic field to sample; Magnetize; Open friction wear testing machine simultaneously and carry out frictional wear experiment, experiment obtains friction factor after accomplishing.
Described magnetization is treated to the method for magnetizing in advance: the sample for preparing is placed in the magnetic field of permanent magnet generation, perhaps is placed in the magnetic field of hot-wire coil generation, make sample have magnetic, magnetic field intensity is 2.25 * 10
4~ 4.5 * 10
4A/m; The magnetizing parameters of this moment can't change in the frictional wear experiment process; On friction wear testing machine, carry out frictional wear experiment then; The mode of operation that adopts the pin mill to decrease; Set rotating speed 50 ~ 300r/min, time 10 ~ 30min, imposed load 0.1 ~ 50N, just can begin experiment afterwards, draw experimental result at last;
Perhaps described magnetization is treated to real-time monitoring magnetic field intensity method: direct supply, coil are connected with friction wear testing machine successively; Coil is wrapped on the friction wear testing machine; Sample places in the coil, applies adjustable voltage, and the magnetic field intensity that coil is produced is controlled at 2.25 * 10
4~ 4.5 * 10
4A/m; The mode of operation that adopts the pin mill to decrease is set rotating speed 50 ~ 300r/min, time 10 ~ 30min, imposed load 0.1 ~ 50N, during the work of pin dish, and the holding coil energising, the magnetic field intensity that coil is produced is controlled at 2.25 * 10
4~ 4.5 * 10
4A/m; To the experiment test of sample enforcement rubbing wear, experiment draws experimental result after accomplishing.
Control device includes: sample, pin 3, load 4 and friction wear testing machine 5; Sample is positioned at the below of friction wear testing machine, and the friction wear testing machine lower end is a pin, and the upper end is a load, and pin contacts with sample.
Fig. 1 a be in common sample 1 surperficial spin coating the sample after the photoresist; Fig. 1 b is the interference fringe that the laser multiple-beam interference is produced on photoresist; Fig. 1 c is the sample after cleaning through developer solution; Fig. 1 d is the composite deposite that the surface that obtains behind the electrochemical deposition has photoresist; Fig. 1 e removes the composite deposite that has surperficial micro-nano texture after the unexposed photoresist.SHAPE \*?MERGEFORMAT
What Fig. 2 a showed is the schematic diagram that untextured common sample 1 is carried out frictional wear experiment.At first, common sample 1 is magnetized in advance, set up the experimental provision shown in Fig. 2 a then; The mode of operation of friction wear testing machine 5 is decreased for the pin mill; Sample 1 is fixed on the base of friction wear testing machine 5, its surface contacts with pin 3, sets the rotational speed omega and the rotation time of friction wear testing machine 5; Imposed load 4, starting friction abrasion tester 5 begins experiment then.After finishing, experiment just can obtain the friction factor of sample 1; What Fig. 2 b showed is the schematic diagram that the sample 2 that has micro-nano texture is carried out frictional wear experiment, and concrete steps are identical with Fig. 2 a, no longer repeats.
What Fig. 3 a showed is the schematic diagram that untextured common sample 1 is carried out frictional wear experiment.At first, set up the device shown in Fig. 3 a, coil 8 is wrapped on the friction wear testing machine; And external direct current power supply, this is to improve friction wear testing machine 5 afterwards, its mode of operation is that the pin mill decreases; Sample 1 is fixed on the base of friction wear testing machine 5, its surface contacts with pin 3, sets the rotational speed omega and the rotation time of friction wear testing machine 5; Imposed load 4, starting friction abrasion tester 5 and to coil 8 energising then, voltage is U; Electric current in the coil is I, and by the magnetic field 7 that hot-wire coil 8 is produced, direction is perpendicular to sample 1 surface.After finishing, experiment just can obtain the friction factor of sample 1; What Fig. 3 b showed is the schematic diagram that the sample 2 that has micro-nano texture is carried out frictional wear experiment, and concrete steps are identical with Fig. 3 a, no longer repeats.
Embodiment 2: perhaps described magnetization is treated to real-time monitoring magnetic field intensity method: direct supply, coil are connected with friction wear testing machine successively; Coil is wrapped on the friction wear testing machine; Sample places in the coil, applies adjustable voltage, and the magnetic field intensity that coil is produced is controlled at 2.25 * 10
4~ 4.5 * 10
4A/m; The mode of operation that adopts the pin mill to decrease is set rotating speed 50 ~ 300r/min, time 10 ~ 30min, imposed load 0.1 ~ 50N, during the work of pin dish, and the holding coil energising, the magnetic field intensity that coil is produced is controlled at 2.25 * 10
4~ 4.5 * 10
4A/m; To the experiment test of sample enforcement rubbing wear, experiment draws experimental result after accomplishing.
Control device includes: sample, pin 3, load 4, friction wear testing machine 5 and coil 8; Sample is positioned at the below of friction wear testing machine, and the friction wear testing machine lower end is a pin, and the upper end is a load, middle winding around, and pin contacts with sample.
Other and embodiment 1 are together.
Claims (4)
1. the method for friction control of a magnetic micro-nano texture surface, the concrete steps of method of friction control are:
One, prepares the surface that has micro-nano texture: be used in combination through laser lithography and electrochemical deposition; At first sample is implemented laser lithography, carry out the spin coating of photoresist in substrate material surface, sol evenning machine carries out spin coating, oven dry then, dries 20min down at 70 ~ 110 ℃; Regulate the average power of laser, scope is being located at 5 ~ 100mW, makes laser form interference fringe at sample surfaces; Close pulse laser system, take out sample, dry 20min down at 80 ~ 100 ℃; At last sample is put into developer solution, after the part of making public on the photoresist is developed the liquid dissolving, take out sample, with the clean developer solution of deionized water rinsing, air dry; Again sample is carried out electrochemical deposition, the electrochemical deposition parameter after accomplishing: positive and negative pulse working time 5ms ~ 1s, frequency 0 ~ 200Hz, current density 10 ~ 50mA/cm
2, work is than 1 ~ 10, keeps 30 ℃ ~ 60 ℃ of bath temperatures, ph value 3 ~ 5, stirring rate 30 ~ 90r/min, prepares regular micro-nano texture coating;
Two, magnetization is handled: sample is magnetized processing, and magnetic field intensity is 2.25 * 10
4~ 4.5 * 10
4A/m;
Three, friction and wear test: sample is fixed on the friction wear testing machine, and the coil electricity to friction wear testing machine applies magnetic field to sample; Magnetize; Open friction wear testing machine simultaneously and carry out frictional wear experiment, experiment obtains friction factor after accomplishing.
2. the method for friction control of magnetic micro-nano texture surface according to claim 1; It is characterized in that: described magnetization is treated to the method for magnetizing in advance: the sample for preparing is placed in the magnetic field of permanent magnet generation; Perhaps be placed in the magnetic field of hot-wire coil generation; Make sample have magnetic, magnetic field intensity is 2.25 * 10
4~ 4.5 * 10
4A/m; On friction wear testing machine, carry out frictional wear experiment then, the mode of operation that adopts the pin mill to decrease is set rotating speed 50 ~ 300r/min, time 10 ~ 30min, imposed load 0.1 ~ 50N, just can begin experiment afterwards, draws experimental result at last.
3. the method for friction control of magnetic micro-nano texture surface according to claim 1; It is characterized in that: described magnetization is treated to real-time monitoring magnetic field intensity method: direct supply, coil are connected with friction wear testing machine successively; Coil is wrapped on the friction wear testing machine; Sample places in the coil, applies adjustable voltage, and the magnetic field intensity that coil is produced is controlled at 2.25 * 10
4~ 4.5 * 10
4A/m; The mode of operation that adopts the pin mill to decrease is set rotating speed 50 ~ 300r/min, time 10 ~ 30min, imposed load 0.1 ~ 50N, during the work of pin dish, and the holding coil energising, the magnetic field intensity that coil is produced is controlled at 2.25 * 10
4~ 4.5 * 10
4A/m; To the experiment test of sample enforcement rubbing wear, experiment draws experimental result after accomplishing.
4. the friction control device of a magnetic micro-nano texture surface, it is characterized in that: control device includes: sample, pin, load, friction wear testing machine and coil; Sample is positioned at the below of friction wear testing machine, and the friction wear testing machine lower end is a pin, and the upper end is a load, middle winding around, and pin contacts with sample.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531392A (en) * | 2016-12-01 | 2017-03-22 | 东莞市佳乾新材料科技有限公司 | Method for lubricating texture and magnetized stainless steel surface employing magnetic liquid |
| CN108593541A (en) * | 2018-03-22 | 2018-09-28 | 深圳大学 | A kind of rubbing device and its test method of extra electric field induction |
Citations (5)
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| JPH1038792A (en) * | 1996-07-25 | 1998-02-13 | Shimadzu Corp | Surface characteristics measuring system |
| CN1645103A (en) * | 2005-01-27 | 2005-07-27 | 上海交通大学 | Microfriction testers |
| CN101445862A (en) * | 2008-12-11 | 2009-06-03 | 上海交通大学 | Method for preparing metal-surface nano layer by friction and rolling |
| CN201464312U (en) * | 2009-03-25 | 2010-05-12 | 河南科技大学 | Magnetic field control device for friction and abrasion test |
| CN102359917A (en) * | 2011-07-18 | 2012-02-22 | 中国人民解放军后勤工程学院 | Device for detecting frictional wear characteristics of magnetorheological fluid under magnetic field |
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2012
- 2012-05-02 CN CN201210131255.2A patent/CN102636429B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1038792A (en) * | 1996-07-25 | 1998-02-13 | Shimadzu Corp | Surface characteristics measuring system |
| CN1645103A (en) * | 2005-01-27 | 2005-07-27 | 上海交通大学 | Microfriction testers |
| CN101445862A (en) * | 2008-12-11 | 2009-06-03 | 上海交通大学 | Method for preparing metal-surface nano layer by friction and rolling |
| CN201464312U (en) * | 2009-03-25 | 2010-05-12 | 河南科技大学 | Magnetic field control device for friction and abrasion test |
| CN102359917A (en) * | 2011-07-18 | 2012-02-22 | 中国人民解放军后勤工程学院 | Device for detecting frictional wear characteristics of magnetorheological fluid under magnetic field |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531392A (en) * | 2016-12-01 | 2017-03-22 | 东莞市佳乾新材料科技有限公司 | Method for lubricating texture and magnetized stainless steel surface employing magnetic liquid |
| CN108593541A (en) * | 2018-03-22 | 2018-09-28 | 深圳大学 | A kind of rubbing device and its test method of extra electric field induction |
| CN108593541B (en) * | 2018-03-22 | 2021-01-05 | 深圳大学 | Friction device induced by external electric field and testing method thereof |
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