CN102286723A - Surface wear-resistance coating applied to automobile high-alloy steel movement friction pair - Google Patents
Surface wear-resistance coating applied to automobile high-alloy steel movement friction pair Download PDFInfo
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- CN102286723A CN102286723A CN2011102052596A CN201110205259A CN102286723A CN 102286723 A CN102286723 A CN 102286723A CN 2011102052596 A CN2011102052596 A CN 2011102052596A CN 201110205259 A CN201110205259 A CN 201110205259A CN 102286723 A CN102286723 A CN 102286723A
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Abstract
The invention discloses a surface wear-resistance coating applied to an automobile high-alloy steel movement friction pair, which is characterized in that a coating buffer layer, a transition layer and a surface layer are sequentially arranged on a substrate, wherein the buffer layer is a metal layer, the transition layer is a metal carbide layer, and the surface layer is an adamantine carbon layer. The combining intensity between the surface coating and the high-alloy steel surface is improved, the excellent wear resistance is realized, the surface wear-resistance coating is applied to the surface treatment of automobile parts, the power consumption of an automobile engine is reduced, and the reliability is improved.
Description
Technical field
The present invention relates to a kind of automobile high quality steel friction of motion secondary surface wear-resistant coating that is applied to.
Technical background
As everyone knows, steel according to chemical composition can be divided into high quality steel, low alloy steel and non-steel alloy three classes.And high quality steel is a main raw of making oilness friction of motion pairs such as camshaft of car engine, tappet, plunger, control piston.During engine operation, these parts all bear influences such as high pressure, high speed and impact, require very high to its surperficial tribological property.At present domestic automobile perhaps adopts traditional oil lubrication mode to realize reducing the purpose of frictionwork at solid lubricant coatings such as the friction of motion secondary surface coated with titanium nitride of these high quality steel, molybdenumdisulphide, nylon.But it is not the manufacturing cost height of these coatings, and high with the bonding strength of high quality steel substrate.And traditional oil lubrication mode lubrication failure occurs easily under the situation of high temperature or insufficient pressure.
In order to improve this situation, further improve the quality level of domestic automobile, carried out the work that on automobile high quality steel friction of motion secondary surface, applies the quasi-diamond carbon-coating.Diamond like carbon film/coating (DLC) is a kind of novel solid slip coating that recent development is got up, have advantages such as smooth smooth, high rigidity (hardness is higher than 20GPa), low friction (dry friction coefficient and oil lubrication frictional coefficient are less than 0.1), corrosion-resistant, long lifetime, be used widely at aspects such as cutter, medicine equipment, vibrating diaphragms.Diamond like carbon film/coating is particularly useful for the situation that oil lubrication was lost efficacy, and has excellent anti-attrition anti-wear effect under metal to-metal contact.By process optimization, can make itself and high quality steel substrate that high bonding strength is arranged.Significant to the reliability that improves engine.
Summary of the invention
The invention provides a kind of automobile high quality steel friction of motion secondary surface wear-resistant coating that is applied to.Improve solid lubricant film and more than 40%, have good anti-attrition performance in the bonding strength on high quality steel surface.
Technical scheme of the present invention is achieved in that a kind of automobile high quality steel friction of motion secondary surface wear-resistant coating that is applied to, and comprises matrix, buffer layer, transition layer, top layer; It is characterized in that: on matrix, apply buffer layer, transition layer and top layer successively; Concrete processing method is as follows: 1) at first with matrix ultrasonic cleaning 10-15min in acetone and ethanol successively, vacuum chamber is put in seasoning again; Base material and target are carried out the plasma cleaning;
2) vacuum chamber is vacuumized, feed argon gas then, feed argon flow amount 50-200sccm, with the metal is target, deposit a metal buffer layer at matrix surface, the metallic target electric current is 12-20A, and dutycycle is 40-90%, frequency is 20-160Hz, pulsed bias 50-1600V, dutycycle 60-85%, frequency is 60-100 Hz, depositing time 10-20 min, deposition pressure 0.1-1Pa;
3) feeding argon gas and methane in vacuum chamber, is target with the metal, and methane is precursor, is buffer layer deposition monocarbide transition layer in the metallic surface; CH
4Flow is 20-200sccm, depositing time 10-20min;
4) with graphite being target, is deposition one quasi-diamond carbon-coating on the transition layer at carbide lamella, and the graphite target electric current is 12-20A, depositing time 10-25min; Described buffer layer is that thickness is 0.3-1 μ m by a kind of in the metals such as chromium, molybdenum, titanium, tungsten, tantalum, zirconium or the combination more than 2 kinds; Described transition layer is the carbide combination of a kind of or metal more than 2 kinds in the metals such as chromium, molybdenum, titanium, tungsten, tantalum, zirconium, and thickness is 0.4-2 μ m; Described top layer is hydrogeneous quasi-diamond carbon-coating, and thickness is 0.5-3 μ m;
Positively effect of the present invention is: improve the bonding strength of solid lubricant coating on the high quality steel surface, has good anti-attrition performance, through following test shows: adopt scanning electron microscopy, measure on coating cross section enlarged image, obtaining total coating thickness is 3 μ m.
By coating's adhesion is tested, as shown in Figure 2, the tappet of pressing the above-mentioned processing of process with through applying the tappet of molybdenumdisulphide and titanium nitride layer, is carried out the big or small test experiments of sticking power simultaneously.The big or small tappet than other two kinds of coatings of sticking power that found that the tappet of the above-mentioned processing of process has all improved more than 40%.
By test to the frictional coefficient of coating, as shown in Figure 3 by through the plunger of above-mentioned processing with the plunger of no diamond-like coating its frictional coefficient of measurement under the condition of oil lubrication simultaneously; The plunger that found that the no diamond-like coating of frictional coefficient ratio of the plunger that passes through above-mentioned processing has descended 2/3rds; More than the high quality steel friction of motion pair of proof surface-coated diamond like carbon film is to satisfying the importance of Hyundai Motor performance.
Description of drawings
Fig. 1 is a gradient cladding synoptic diagram of the present invention.
Fig. 2 is a different surfaces coating's adhesion size contrast synoptic diagram of the present invention.
Fig. 3 is the frictional coefficient contrast synoptic diagram that has or not diamond-like coating of the present invention.
Embodiment
Below by embodiment the present invention is further described, embodiment is for further illustrating characteristics of the present invention, be not equal to restriction the present invention, for the change that those skilled in the art carries out according to the present invention, all should be included within protection scope of the present invention a kind of automobile high quality steel friction of motion secondary surface wear-resistant coating that is applied to, comprise matrix 1, buffer layer 2, transition layer 3, top layer 4; It is characterized in that: on matrix 1, apply buffer layer 2, transition layer (3) and top layer 4 successively.
Embodiment 1
Clean and preparation: get the plunger of P type oil injection pump, it is formed by the superior alloy steel manufacturing, cleans each 10min with acetone and ethanol in ultrasonic wave successively, and seasoning places vacuum chamber; Be evacuated to vacuum tightness less than 2.8 * 10
-3Pa; Feed argon gas 400sccm in vacuum chamber, adjust air pressure to 0.5Pa, it is 1000V that workpiece adds pulsed bias, and plasma cleaning workpiece 10min is with impurity and the pollutent of removing remained on surface.
The preparation of buffer layer: argon flow amount is 120sccm, metal titanium targets (purity is 99.9%) supply current 12A, and dutycycle is 80%, frequency is 40Hz, pulsed bias 1600V, dutycycle 85%, frequency are 100Hz, depositing time 10 min.
The preparation of transition layer: keep above-mentioned condition constant, methane flow is increased to 180sccm gradually from 20sccm, depositing time 10min.
The preparation on top layer: other conditions remain unchanged, and the graphite target supply current is 16A, and dutycycle is 60%, and frequency is 40Hz, the about 20min of depositing time; Plunger surface at P type oil injection pump obtains the quasi-diamond gradient film at last.
Embodiment 2
At first with matrix ultrasonic cleaning 15min in acetone and ethanol successively, vacuum chamber is put in seasoning again; Base material and target are carried out the plasma cleaning;
Vacuum chamber is vacuumized, feed argon gas then, feed argon flow amount 50sccm, with the chromium metal is target, deposit a metal buffer layer at matrix surface, the chromium metal target current is 20A, and dutycycle is 40%, frequency is 160Hz, pulsed bias 50V, dutycycle 60%, frequency are 60 Hz, depositing time 20 min, deposition pressure 0.1Pa; Thickness is 0.3 μ m;
Feeding argon gas and methane in vacuum chamber, is target with the chromium metal, and methane is precursor, is buffer layer deposition monocarbide transition layer in the metallic surface; CH
4Flow is 200sccm, depositing time 20min; Thickness is 0.4 μ m;
With graphite is target, is deposition one quasi-diamond carbon-coating on the transition layer at carbide lamella, and the graphite target electric current is 20A, and thickness is 0.5 μ m; Depositing time 10min.
Embodiment 3
At first with matrix ultrasonic cleaning 12min in acetone and ethanol successively, vacuum chamber is put in seasoning again; Base material and target are carried out the plasma cleaning;
Vacuum chamber is vacuumized, feed argon gas then, feed argon flow amount 100sccm, with tungsten, tantalum, titanium is target, deposit a metal buffer layer at matrix surface, the metallic target electric current is 16A, and dutycycle is 90%, frequency is 100Hz, pulsed bias 1000V, dutycycle 75%, frequency are 90 Hz, depositing time 15 min, deposition pressure 1Pa;
Feeding argon gas and methane in vacuum chamber, is target with tungsten, tantalum, titanium, and methane is precursor, is buffer layer deposition monocarbide transition layer in the metallic surface; CH
4Flow is 100sccm, depositing time 15min; Thickness is 0.8 μ m;
With graphite is target, is deposition one quasi-diamond carbon-coating on the transition layer at carbide lamella, and the graphite target electric current is 15A, and thickness is 2 μ m; Depositing time 25min.
Embodiment 4
At first with matrix ultrasonic cleaning 12min in acetone and ethanol successively, vacuum chamber is put in seasoning again; Base material and target are carried out the plasma cleaning;
Vacuum chamber is vacuumized, feed argon gas then, feed argon flow amount 100sccm, with the metal titanium is target, deposit a metal buffer layer at matrix surface, the metallic target electric current is 16A, and dutycycle is 90%, frequency is 100Hz, pulsed bias 1000V, dutycycle 75%, frequency are 90 Hz, depositing time 15 min, deposition pressure 1Pa;
Feeding argon gas and methane in vacuum chamber, is target with the metal titanium, and methane is precursor, is buffer layer deposition monocarbide transition layer in the metallic surface; CH
4Flow is 100sccm, depositing time 15min; Thickness is 1.8 μ m;
With graphite is target, is deposition one quasi-diamond carbon-coating on the transition layer at carbide lamella, and the graphite target electric current is 15A, and thickness is 2.5 μ m; Depositing time 25min.
Claims (4)
1. one kind is applied to automobile high quality steel friction of motion secondary surface wear-resistant coating, comprises matrix, buffer layer, transition layer, top layer; It is characterized in that: on matrix, apply buffer layer, transition layer and top layer successively; Concrete processing method is as follows: 1) at first with matrix ultrasonic cleaning 10-15min in acetone and ethanol successively, vacuum chamber is put in seasoning again; Base material and target are carried out the plasma cleaning;
2) vacuum chamber is vacuumized, feed argon gas then, feed argon flow amount 50-200sccm, with the metal is target, deposit a metal buffer layer at matrix surface, the metallic target electric current is 12-20A, and dutycycle is 40-90%, frequency is 20-160Hz, pulsed bias 50-1600V, dutycycle 60-85%, frequency is 60-100 Hz, depositing time 10-20 min, deposition pressure 0.1-1Pa;
3) feeding argon gas and methane in vacuum chamber, is target with the metal, and methane is precursor, is buffer layer deposition monocarbide transition layer in the metallic surface; CH
4Flow is 20-200sccm, depositing time 10-20min;
4) with graphite being target, is deposition one quasi-diamond carbon-coating on the transition layer at carbide lamella, and the graphite target electric current is 12-20A, depositing time 10-25min.
2. a kind of automobile high quality steel friction of motion secondary surface wear-resistant coating that is applied to according to claim 1 is characterized in that buffer layer is that thickness is 0.3-1 μ m by a kind of in the metals such as chromium, molybdenum, titanium, tungsten, tantalum, zirconium or the combination more than 2 kinds.
3. a kind of automobile high quality steel friction of motion secondary surface wear-resistant coating that is applied to according to claim 1, it is characterized in that transition layer is the carbide combination of a kind of or metal more than 2 kinds in the metals such as chromium, molybdenum, titanium, tungsten, tantalum, zirconium, thickness is 0.4-2 μ m.
4. a kind of automobile high quality steel friction of motion secondary surface wear-resistant coating that is applied to according to claim 1 is characterized in that the top layer is hydrogeneous quasi-diamond carbon-coating, and thickness is 0.5-3 μ m.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317793A (en) * | 2013-06-28 | 2013-09-25 | 宜昌后皇真空科技有限公司 | Diamond-like based nano-composite coated cutting tool and preparation method thereof |
| CN104525860A (en) * | 2014-11-18 | 2015-04-22 | 西安理工大学 | Engine tappet and production method thereof |
| CN106338347A (en) * | 2016-11-02 | 2017-01-18 | 清华大学 | Interdigital electrode material for high temperature surface acoustic wave sensor and the preparation method thereof |
| CN107034440A (en) * | 2017-05-03 | 2017-08-11 | 马鞍山市卡迈特液压机械制造有限公司 | A kind of composite diamond carbon film and preparation method thereof |
| CN107245697A (en) * | 2017-05-17 | 2017-10-13 | 清华大学 | Strengthen the method and hydraulic system friction pair, hydraulic system of hydraulic system friction pair antiwear characteristic |
| CN108728802A (en) * | 2018-06-05 | 2018-11-02 | 湘潭大学 | Multilayer high temperature resistant Ti/Zr co-doped diamond coatings and preparation method thereof |
| CN112981361A (en) * | 2021-02-20 | 2021-06-18 | 京东方科技集团股份有限公司 | Friction pair system and flexible display device |
| WO2023185611A1 (en) * | 2022-04-02 | 2023-10-05 | 重庆爵狼新能源科技有限公司 | Chain wheel of racing motorcycle and manufacturing method therefor |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103317793A (en) * | 2013-06-28 | 2013-09-25 | 宜昌后皇真空科技有限公司 | Diamond-like based nano-composite coated cutting tool and preparation method thereof |
| CN103317793B (en) * | 2013-06-28 | 2015-09-23 | 宜昌后皇真空科技有限公司 | A kind of diamond-like ground mass nano-composite coating cutter and preparation method thereof |
| CN104525860A (en) * | 2014-11-18 | 2015-04-22 | 西安理工大学 | Engine tappet and production method thereof |
| CN106338347A (en) * | 2016-11-02 | 2017-01-18 | 清华大学 | Interdigital electrode material for high temperature surface acoustic wave sensor and the preparation method thereof |
| CN107034440A (en) * | 2017-05-03 | 2017-08-11 | 马鞍山市卡迈特液压机械制造有限公司 | A kind of composite diamond carbon film and preparation method thereof |
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| CN107245697A (en) * | 2017-05-17 | 2017-10-13 | 清华大学 | Strengthen the method and hydraulic system friction pair, hydraulic system of hydraulic system friction pair antiwear characteristic |
| CN107245697B (en) * | 2017-05-17 | 2019-07-26 | 清华大学 | Enhance the method and hydraulic system friction pair, hydraulic system of hydraulic system friction pair antiwear characteristic |
| CN108728802A (en) * | 2018-06-05 | 2018-11-02 | 湘潭大学 | Multilayer high temperature resistant Ti/Zr co-doped diamond coatings and preparation method thereof |
| CN108728802B (en) * | 2018-06-05 | 2020-06-19 | 湘潭大学 | Multilayer high-temperature-resistant Ti/Zr co-doped diamond-like coating and preparation method thereof |
| CN112981361A (en) * | 2021-02-20 | 2021-06-18 | 京东方科技集团股份有限公司 | Friction pair system and flexible display device |
| WO2023185611A1 (en) * | 2022-04-02 | 2023-10-05 | 重庆爵狼新能源科技有限公司 | Chain wheel of racing motorcycle and manufacturing method therefor |
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Application publication date: 20111221 |