CN105463548A - Aluminum alloy cylinder body inner surface ceramic layer and technique thereof - Google Patents
Aluminum alloy cylinder body inner surface ceramic layer and technique thereof Download PDFInfo
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- CN105463548A CN105463548A CN201510732541.8A CN201510732541A CN105463548A CN 105463548 A CN105463548 A CN 105463548A CN 201510732541 A CN201510732541 A CN 201510732541A CN 105463548 A CN105463548 A CN 105463548A
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Abstract
The invention provides an aluminum alloy cylinder body inner surface ceramic layer and a technique thereof. The technique comprises the following steps: firstly prefabricating a threaded spiral groove in the inner surface of an aluminum alloy cylinder body by machining; and then respectively growing two layers of Al2O3 ceramic films in situ on the inner surface and the outer surface of the spiral groove by micro-arc oxidation. The ceramic layer consists of two layers, the bottom layer is a threaded spiral layer under the inner surface of the cylinder body, the depth of the bottom layer is 30-400 mu m, the ceramic layer on the inner surface of the cylinder body is a surface layer, and the thickness of the surface layer is 0-10 mu m. The ceramic layer is combined to a base body firmly, is high in hardness and compactness, not only has wear resistance, impact resistance and corrosion resistance, but also has good thermal conductivity. The ceramic films are prepared simply, and are easy to control, low in cost and high in efficiency.
Description
Technical field
The present invention relates to and prepare ceramic layer and processing method thereof at inner surface of cylinder block, particularly relate to aluminium alloy cylinder internal surface oxidation Al
2o
3ceramic layer and processing method thereof.
Background technology
Current cylinder body adopts aluminium alloy, and lightweight, thermal diffusivity is good, but its hardness is low, if do not processed its internal surface, then can not normally use.For making inner surface of cylinder block have higher wear resistance, generally use Cast iron liner as liner, or in coatings such as inner surface of cylinder block electrodeposited chromium or plating (Ni-P)-SiC platings.The former requires high at complete processing, and engine weight can be caused to increase, and latter process is complicated, and cost is high, and has remarkable pollution to environment.In addition, no matter be liner Cast iron liner or composite electroplated coating, inner surface of cylinder block all can not be made to have good insulating characteristics.Chinese patent CN200310118909.9 reports a kind of micro arc oxidation treating process for aluminium alloy cylinder inner surface, this technique can prepare the arc differential oxide ceramic layer of one deck uniform thickness on cylinder inner wall, thus improve wear-resisting, anti-corrosion, temperature-resistance characteristic, but rete is thinner, be generally about 30 μm, the more important thing is that the thermal expansivity of the thermal expansivity and aluminium reckoning without ceramic layer differs greatly, larger stress can be caused during temperature variation and cause the easy peeling of oxidation ceramic layer or peel off, simultaneously because the insulating characteristics that oxidation ceramic layer is good makes the heat that in cylinder body, combustion gas produces be difficult to be derived by cylinder body wall, thus make the working temperature of piston ring and piston too high, occur that size too expands and produces " card cylinder " or " scuffing of cylinder bore " phenomenon.In addition, if prepare thicker ceramic layer by this technique at inner surface of cylinder block, then need higher oxidation voltage, energy consumption is high, also higher to the requirement of power supply.Therefore, aforesaid method is difficult to practicality.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of aluminium alloy cylinder internal surface ceramic layer and processing method thereof, this ceramic layer is made up of two-layer, bottom is the screw-shaped spiral layers under inner surface of cylinder block, the degree of depth is 30 ~ 400 μm, and the ceramic layer on inner surface of cylinder block is top layer, and thickness is 0 ~ 10 μm, in ceramic layer, the pitch of thread-like spiral layer is 0.1mm ~ 0.7mm, and cross-sectional shape is circular arc, rectangle, trilateral or trapezoidal.According to the growth characteristics of ceramic coating formed by micro-arc oxidation, oxide ceramic membrane is perpendicular to aluminum substrate surface growth, on spiral slot surfaces externally and internally, oxide ceramic membrane can grow simultaneously, and the oxide ceramic membrane of two sides in spiral slot and bottom surface also grows simultaneously, and meet very soon and obtain the ceramic membrane of complete densification, ceramic membrane fills up after spiral slot again to groove external growth, become to be integrated with the oxide ceramic membrane outside groove and continue to outgrowth, the ceramic film of final formation is made up of groove internal layer and groove skin, the quantity of ceramic membrane in groove, size determines primarily of the prefabricated screw-shaped spiral slot quantity of inner surface of cylinder block and size, the thickness of the oxide ceramic membrane outside groove then determines primarily of micro-arc oxidation process parameter.Therefore, the thickness of ceramic membrane is greatly enhanced, and easily control, ceramic layer is combined with matrix firmly, hardness and density high, not only there is shock-resistant, wear-resistant and erosion-resisting performance, also there is good thermal conductivity, thus prevent piston ring and piston from occurring that size too expands and produces " card cylinder " phenomenon or " scuffing of cylinder bore " phenomenon.
Technical scheme of the present invention first adopts mechanical processing method to process thread-like spiral groove at aluminium alloy cylinder internal surface, the pitch of thread-like spiral groove is 0.1mm ~ 0.7mm, cross-sectional shape is circular arc, rectangle, trilateral or trapezoidal, spiral slot A/F is no more than 0.4mm, and depth-to-width ratio is 1 ︰ 1 ~ 3.Then micro-arc oxidation growth in situ one deck ceramic coating formed by micro-arc oxidation inside and outside spiral slot is adopted.Micro-arc oxidation process adopts pulse oxidizes power supply, aluminium alloy cylinder is as anode, and its outside surface is sealed, stainless steel is as negative electrode, the area ratio of anode and negative electrode is 1 ︰ 0.6 ~ 1, oxidation solution is the water glass system of low alkalinity or the electrolytic solution of sodium phosphate system or sodium metaaluminate system, by following process steps, prepares Al at aluminium alloy cylinder internal surface
2o
3ceramic layer:
1. by aluminium alloy cylinder wipe oil, load in differential arc oxidation groove after outside surface sealing, and be connected with the anode line of power supply, oxidation solution temperature is 10 ~ 30 DEG C, and is in whipped state;
2. starting impulse oxidation power supply, pulse-repetition 50 ~ 200Hz, dutycycle 50 ~ 70%, given positive pulse current density is 2 ~ 5A/dm
2, negative pulse current density is 0 ~ 1A/dm
2, oxidation 2 ~ 5min, given positive pulse current density 7 ~ 20A/dm
2, negative pulse current density is 0 ~ 9A/dm
2, positive pulse oxidation voltage reaches 350 ~ 610V, when negative pulse oxidation voltage reaches 0 ~ 120V, and oxidation 30 ~ 90min;
3. take out the aluminium alloy cylinder after oxidation, clean oxidation solution post-drying with clear water;
4. by the top layer ground finish of ceramic layer to specified dimension.
Advantage of the present invention is:
(1) film forming efficiency is high, and energy consumption is low, be easy to control.Mechanical workout is adopted to precast the thread-like spiral groove of certain opening width and the degree of depth at aluminium alloy cylinder internal surface, micro-arc oxidation is adopted to obtain oxidation ceramic layer again, the oxide ceramic membrane of major part is formed under inner surface of cylinder block, and reach the larger degree of depth, thus increase the thickness of ceramic membrane.And change spiral fluted size, then can change the degree of depth and the width of this layer of ceramic membrane, but without the need to changing micro-arc oxidation process number.The total thickness of ceramic layer is the thickness sum of ceramic layer inside and outside spiral slot, compared with traditional micro-arc oxidation process, obtains the same electric current required for ceramic oxide film thickness, voltage, time all significantly reduces;
(2) oxide ceramic membrane aluminum substrate combination strengthen, wear resistance and thermal conductivity good.Under inner surface of cylinder block, oxide ceramic membrane distributes according to spiral fluted rotation direction, shape and size, defines ceramic membrane and the alternatively distributed state of aluminum substrate, is not only metallurgical binding with aluminum substrate, but also have the mode of screw thread-like connection, increase the reliability of connection.When being subject to stress and heat effect, between the two can mutually " cooperation ", ceramic membrane not easily peeling and peeling off.In addition, on inner surface of cylinder block, ceramic membrane is thinner, and heat can conduct to outer surface of cylinder block by rete thin location through aluminum substrate.Like this, not only can improve the wear resistance of inner surface of cylinder block and the thermo-efficiency of gas in the jar, not make again piston ring and piston occur thermal expansion and produce " card cylinder " or " scuffing of cylinder bore " phenomenon.
Accompanying drawing explanation
Fig. 1 is aluminium alloy cylinder internal surface screw-shaped spiral slot partial cross section structural representation.Ceramic layer is Al
2o
3pottery, is made up of two-layer, and bottom is the screw-shaped spiral layers under inner surface of cylinder block, and pitch is 0.1mm ~ 0.7mm, and cross-sectional shape is trapezoidal, and can be also circular arc, rectangle, trilateral, the ceramic layer on inner surface of cylinder block be top layer.
Fig. 2 is aluminium alloy cylinder micro-arc oxidation of inner surface microscopic appearance figure.Aluminium alloy cylinder material is the aluminum silicon alloy of ADC12, the degree of depth of bottom ceramic membrane is approximately 80 μm, and A/F is about 160 μm, and depth-to-width ratio is 1 ︰ 1.45, ceramic layer skin depth is approximately 55 μm, the thickness of top layer ceramic layer can be made to reach 5-10 μm by mechanical grinding processing.
Embodiment
The present invention further illustrates as follows in conjunction with specific embodiments:
Embodiment 1:1P52QMI Motorcycle Aluminum Alloy inner surface of cylinder block ceramic layer and processing method thereof:
1. adopt mechanical processing method to process thread-like spiral groove at aluminium alloy cylinder internal surface, spiral fluted pitch is 0.1mm ~ 0.7mm, and cross-sectional shape is trapezoidal, spiral slot A/F 0.16mm, and depth-to-width ratio is 1 ︰ 1.40;
2. by aluminium alloy cylinder wipe oil, load after outside surface sealing in differential arc oxidation groove, oxidizing process adopts pulse oxidizes power supply, aluminium alloy cylinder is as anode, stainless steel is as negative electrode, and the area ratio of anode and negative electrode is 1 ︰ 0.8, and oxidation solution temperature is 10 ~ 30 DEG C, and being in whipped state, differential arc oxidation liquid is the electrolytic solution of the water glass system of low alkalinity;
3. starting impulse oxidation power supply, pulse-repetition 100Hz, dutycycle 50 ~ 70%, given positive pulse current density is 3A/dm
2, negative pulse current density is 1A/dm
2, oxidation 5min, given positive pulse current density 12A/dm
2, negative pulse current density is 5A/dm
2, positive pulse oxidation voltage reaches 540V, when negative pulse oxidation voltage reaches 90V, and oxidation 50min;
4. take out the aluminium alloy cylinder after oxidation, clean oxidation solution post-drying with clear water;
5. by the top layer ground finish of ceramic layer to specified dimension 10 μm.
The degree of depth of inner surface of cylinder block bottom ceramic membrane is approximately 80 μm, and A/F is about 160 μm, and depth-to-width ratio is 1 ︰ 1.45, and ceramic layer skin depth is approximately 55 μm, makes the thickness of top layer ceramic layer be 10 μm by mechanical grinding after being processed.
Claims (5)
1. aluminium alloy cylinder internal surface ceramic layer and processing method thereof, is characterized in that described aluminium alloy cylinder internal surface ceramic layer is Al
2o
3pottery, is made up of two-layer, and bottom is the screw-shaped spiral layers under inner surface of cylinder block, and the degree of depth is 30 ~ 400 μm, and the ceramic layer on inner surface of cylinder block is top layer, and thickness is 0 ~ 10 μm.
2. aluminium alloy cylinder internal surface ceramic layer according to claim 1 and processing method thereof, the pitch that it is characterized in that thread-like spiral layer in described aluminium alloy cylinder internal surface ceramic layer is 0.1 ~ 0.7mm, and cross-sectional shape is circular arc, rectangle, trilateral or trapezoidal.
3. prepare the processing method of aluminium alloy cylinder internal surface ceramic layer according to claim 1 for one kind, it is characterized in that first adopting mechanical processing method to process thread-like spiral groove at aluminium alloy cylinder internal surface, then adopt micro-arc oxidation growth in situ one deck ceramic coating formed by micro-arc oxidation inside and outside spiral slot.
4. a kind of processing method preparing aluminium alloy cylinder internal surface ceramic layer according to claim 1 according to claim 3, it is characterized in that the pitch of thread-like spiral groove is 0.1 ~ 0.7mm, cross-sectional shape is circular arc, rectangle, trilateral or trapezoidal, spiral slot A/F is no more than 0.4mm, and depth-to-width ratio is 1 ︰ 1 ~ 3.
5. a kind of processing method preparing aluminium alloy cylinder internal surface ceramic layer according to claim 1 according to claim 3, it is characterized in that micro-arc oxidation process adopts pulse oxidizes power supply, aluminium alloy cylinder is as anode, and its outside surface is sealed, stainless steel is as negative electrode, and the area ratio of anode and negative electrode is 1 ︰ 0.6 ~ 1, and oxidation solution is the water glass system of low alkalinity or the electrolytic solution of sodium phosphate system or sodium metaaluminate system, by following process steps, prepare Al at aluminium alloy cylinder internal surface
2o
3ceramic layer:
1. by aluminium alloy cylinder wipe oil, load in differential arc oxidation groove after outside surface sealing, and be connected with the anode line of power supply, oxidation solution temperature is 10 ~ 30 DEG C, and is in whipped state;
2. starting impulse oxidation power supply, pulse-repetition 50 ~ 200Hz, dutycycle 50 ~ 70%, given positive pulse current density is 2 ~ 5A/dm
2, negative pulse current density is 0 ~ 1A/dm
2, oxidation 2 ~ 5min, given positive pulse current density 7 ~ 20A/dm
2, negative pulse current density is 0 ~ 9A/dm
2, positive pulse oxidation voltage reaches 350 ~ 610V, when negative pulse oxidation voltage reaches 0 ~ 120V, and oxidation 30 ~ 90min;
3. take out the aluminium alloy cylinder after oxidation, clean oxidation solution post-drying with clear water;
4. by the top layer ground finish of ceramic layer to specified dimension.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086984A (en) * | 2016-08-23 | 2016-11-09 | 苏州库浩斯信息科技有限公司 | A kind of Microarc Oxidation of Al-mg Alloy method and electrolyte |
| CN106591916A (en) * | 2016-11-30 | 2017-04-26 | 北京交通大学 | Surface treatment method for aluminum alloy part of contact net |
| CN107059089A (en) * | 2017-02-10 | 2017-08-18 | 大连海事大学 | ZL109 aluminum alloy differential arc oxidation wear-resistant ceramic layer process |
| CN107166343A (en) * | 2017-06-14 | 2017-09-15 | 乐山市同源科技有限公司 | The method for improving LED radiation radiating |
| CN107447244A (en) * | 2017-08-02 | 2017-12-08 | 山东省科学院新材料研究所 | A kind of aluminium alloy cylinder and its ceramic treatment method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1222943A (en) * | 1996-08-26 | 1999-07-14 | 日本电信电话株式会社 | Method of manufacturing porous anodized alumina film |
| CN101429672A (en) * | 2008-11-19 | 2009-05-13 | 东南大学 | Surface treating method for sea water corrosion-resistant metal aluminum or aluminum alloy |
| CN101484612A (en) * | 2006-07-05 | 2009-07-15 | 浦项工科大学校产学协力团 | Method for fabricating superh ydrophob ic surface and solid having superhydrophobic surface structure by the same method |
| CN101722778A (en) * | 2008-10-30 | 2010-06-09 | 深圳富泰宏精密工业有限公司 | Method for making housing and housing made by same |
| KR20130046835A (en) * | 2011-10-28 | 2013-05-08 | 주식회사 옵트론텍 | Method of high silicon aluminum alloy, black oxide coating |
| WO2013099935A1 (en) * | 2011-12-27 | 2013-07-04 | 三菱レイヨン株式会社 | Stamper, method for producing same, and method for producing molded body |
| WO2015021582A1 (en) * | 2013-08-12 | 2015-02-19 | Hewlett-Packard Development Company,L.P. | Oxidation treatment of metal surfaces |
-
2015
- 2015-11-03 CN CN201510732541.8A patent/CN105463548A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1222943A (en) * | 1996-08-26 | 1999-07-14 | 日本电信电话株式会社 | Method of manufacturing porous anodized alumina film |
| CN101484612A (en) * | 2006-07-05 | 2009-07-15 | 浦项工科大学校产学协力团 | Method for fabricating superh ydrophob ic surface and solid having superhydrophobic surface structure by the same method |
| CN101722778A (en) * | 2008-10-30 | 2010-06-09 | 深圳富泰宏精密工业有限公司 | Method for making housing and housing made by same |
| CN101429672A (en) * | 2008-11-19 | 2009-05-13 | 东南大学 | Surface treating method for sea water corrosion-resistant metal aluminum or aluminum alloy |
| KR20130046835A (en) * | 2011-10-28 | 2013-05-08 | 주식회사 옵트론텍 | Method of high silicon aluminum alloy, black oxide coating |
| WO2013099935A1 (en) * | 2011-12-27 | 2013-07-04 | 三菱レイヨン株式会社 | Stamper, method for producing same, and method for producing molded body |
| WO2015021582A1 (en) * | 2013-08-12 | 2015-02-19 | Hewlett-Packard Development Company,L.P. | Oxidation treatment of metal surfaces |
Non-Patent Citations (3)
| Title |
|---|
| D.T. ASQUITH等: "Effect of combined shot-peening and PEO treatment on fatigue life of 2024 Al alloy", 《THIN SOLID FILMS》 * |
| KANG LI等: "Influence of surface etching pretreatment on PEO process of eutectic Al–Si alloy", 《CHINESE JOURNAL OF CHEMICAL ENGINEERING》 * |
| 魏晓伟等: "脉冲电压波形和冷却条件对发动机铝活塞硬质氧化的影响", 《材料保护》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086984A (en) * | 2016-08-23 | 2016-11-09 | 苏州库浩斯信息科技有限公司 | A kind of Microarc Oxidation of Al-mg Alloy method and electrolyte |
| CN106086984B (en) * | 2016-08-23 | 2019-05-03 | 苏州库浩斯信息科技有限公司 | A kind of Microarc Oxidation of Al-mg Alloy method and electrolyte |
| CN106591916A (en) * | 2016-11-30 | 2017-04-26 | 北京交通大学 | Surface treatment method for aluminum alloy part of contact net |
| CN107059089A (en) * | 2017-02-10 | 2017-08-18 | 大连海事大学 | ZL109 aluminum alloy differential arc oxidation wear-resistant ceramic layer process |
| CN107166343A (en) * | 2017-06-14 | 2017-09-15 | 乐山市同源科技有限公司 | The method for improving LED radiation radiating |
| CN107447244A (en) * | 2017-08-02 | 2017-12-08 | 山东省科学院新材料研究所 | A kind of aluminium alloy cylinder and its ceramic treatment method |
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Application publication date: 20160406 |