CN101963199A - Motor vehicle aluminium alloy brake with micro-arc oxidation ceramic coating braking surface - Google Patents
Motor vehicle aluminium alloy brake with micro-arc oxidation ceramic coating braking surface Download PDFInfo
- Publication number
- CN101963199A CN101963199A CN200910212580XA CN200910212580A CN101963199A CN 101963199 A CN101963199 A CN 101963199A CN 200910212580X A CN200910212580X A CN 200910212580XA CN 200910212580 A CN200910212580 A CN 200910212580A CN 101963199 A CN101963199 A CN 101963199A
- Authority
- CN
- China
- Prior art keywords
- brake disc
- braking surface
- brake
- motor vehicle
- aluminum alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a motor vehicle aluminium alloy brake with micro-arc oxidation ceramic coating braking surface. The basis material of the brake is aluminium alloy and aluminum oxide (AL2O3) ceramic coatings cover the inner and outer braking surfaces of the brake. In the vehicle aluminium alloy brake, the AL2O3 ceramic coatings are generated on the braking working surfaces which have the advantages of light weight, good heat dissipation, and high abrasive resistance, so the problems of low abrasive resistance, poor heat dissipation effect, heavy weight and the like in the conventional cast brake are solved.
Description
Technical field
The invention belongs to automobile disk type brake light technical field, particularly be specially one deck AL of drag friction surface, a kind of both sides for generating through differential arc oxidation
2O
3The aluminum alloy brake disc of ceramic film.
Background technique
Motor vehicle brake almost is mechanical friction type, promptly utilizes fricative braking moment between rotatable member and fixed element two working surfaces to make car deceleration or stops.Frictin braek is divided into drum-type and disc type two big classes by the shape of its rotatable member, and drum brake is to be made of the brake shoe brake drum.With respect to drum brake, disk type braker has that better heat stability, water stability are better, insensitivity better, advantage such as lighter and easy maintenance.
The rotatable member of disk type braker is one vertically to be laid and is the brake disc of working surface with the both side surface, and its fixed friction element generally is the brake slipper that is positioned at the brake disc both sides and has friction plate.During braking, when brake disc was clamped by the brake slipper of both sides, friction surface just produced the friction torque that acts on the brake disc.Disk type braker is commonly used for the wheel drag of automobile and motorcycle, also can be used as the centre brake of various automobiles.
In aforesaid operations, brake disc is an important components, and its hardness and abrasion resistance directly have influence on Security and working life, so require that brake disc tool hardness height, wear resistance are good, the characteristics of long service life.And present most of brake disc is to be made by cast iron, and this brake disc manufacture cost is cheap, but cast iron brake disk wears no resistance, and wear intensity is done; Radiating effect is bad, causes friction factor to reduce, and stopping distance prolongs, braking failure; The cast iron brake disk quality is big, has increased the fuel consumption of car load, and Cast Iron Surface gets rusty easily.
Seeking better solution both at home and abroad, domestic notice of authorization number is the utility model patent of CN201080980Y always, utilize magnesium alloy to substitute cast iron and make brake disc, but the rotating bending of magnesium alloy is unstable and shorter fatigue life.Generally speaking, frequency is little to the aerial fatigue behaviour influence of metallic material, but magnesium alloy is different fully.For example, in air, at frequency range 1～10Hz, for extruding AM60, frequency is low more, and fatigue life is short more.For extrusion magnesium alloy AZ80, frequency is low more, and fatigue crack growth rate is fast more, and chlorion can significantly reduce the fatigue life of magnesium alloy AM60 and AZ80, and the casting defect of cast magnesium alloy (as the cavity) place of fatigue crack initiation often then.CL
-, Br
-, I
-Bear the corrosion fatigue crack expansion rate that the divalent ion all can be accelerated magnesium alloy with four silica.
The IMP of U.S. material working research institute (The Institute of Materials Processing) succeeded in developing ladle aluminum Moving plate in 2005, promptly was matrix with the aluminum alloy, and the drag friction surface studs with one deck steel, applies for a patent.And the patent No. is that 5224752 U.S.'s patent of invention are also for light-duty brake disc, be to be coated with the coating that last layer thickness is 0.015-0.020 inch (promptly 381 microns-508 microns) at the brake disc braking surface with alloy matrix aluminum, coating is by any or multiple composition the in three kinds of aluminium oxide, titanium aluminium and the magnesium zirconates.Above-mentioned two kinds of methods all are to be matrix with the aluminum alloy, illustrate that the brake disc alloy matrix aluminum is a development trend, but these two kinds of methods all relate to alloy matrix aluminum and braking surface layer in conjunction with problem.All the alumina ceramic membrane that generates not as carrying out differential arc oxidation on the alloy matrix aluminum is to belong to growth in situ, metallurgy combination, and intensity is good.
Summary of the invention
The object of the present invention is to provide the high braking working surface of a kind of light weight, good heat dissipation, wear resistance to generate AL is arranged
2O
3The aluminum alloy brake disc of ceramic film solves problems such as existing cast iron brake disk wears no resistance, radiating effect is bad, quality is big.
The technical solution that realizes the object of the invention is: the body material of brake disc is an aluminum alloy, and the inside and outside braking surface of brake disc is coated with aluminium oxide AL
2O
3Ceramic film, this ceramic layer thickness are 10 microns to 370 microns.
The present invention compared with prior art, its remarkable advantage: (1) aluminum alloy brake disc is produced in enormous quantities and differential arc oxidation is handled easy and simple to handle stable.(2) the brake disc AL of Huo Deing
2O
3Rete consistency height, hardness height, has extraordinary wear resistance.(3) because AL
2O
3The ceramic layer thermal conductivity is very low, reduced heat energy that the drag friction working surface produces speed to the conduction of brake disc alloy matrix aluminum in braking, the thermal conductivity height of while alloy matrix aluminum, good heat dispersion is arranged, improved the performance such as wear-resisting, high temperature resistant of brake disc greatly, radiating effect is good, has prolonged the working life of brake disc.(4) aluminum alloy brake disc weight is lighter, has alleviated the weight of car load, has reduced the fuel consumption of car load.
Description of drawings
Fig. 1 is the whole shaft side figure of the Motor Vehicle aluminum alloy brake disc of arc differential oxide ceramic layer for braking surface of the present invention.
Fig. 2 is the plan view of the Motor Vehicle aluminum alloy brake disc of arc differential oxide ceramic layer for braking surface of the present invention.
Fig. 3 is the left view of the Motor Vehicle aluminum alloy brake disc of arc differential oxide ceramic layer for braking surface of the present invention.
Fig. 4 is the partial enlarged drawing of the Motor Vehicle aluminum alloy brake disc of arc differential oxide ceramic layer for braking surface of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
In conjunction with Fig. 1 to Fig. 4, braking surface of the present invention is that the body material of the Motor Vehicle aluminum alloy brake disc of arc differential oxide ceramic layer is an aluminum alloy, and the inside and outside braking surface of brake disc is coated with aluminium oxide AL
2O
3Ceramic film 1, this AL
2O
3The thickness of ceramic film is 10 microns to 370 microns.
Braking surface of the present invention is that the Motor Vehicle aluminum alloy brake disc of arc differential oxide ceramic layer is solid brake disc.
Braking surface of the present invention is that the Motor Vehicle aluminum alloy brake disc of arc differential oxide ceramic layer has ventilating hole channel, shown in figure one shaft side figure.
Braking surface of the present invention is the Motor Vehicle aluminum alloy brake disc of arc differential oxide ceramic layer, AL
2O
3Ceramic film 1 is that the inside and outside braking surface at aluminum alloy brake disc matrix adopts microarc oxidation treatment process to generate.Differential arc oxidation is to act on a kind of new process that light metal surface forms ceramic membrane by the electrion in the electrolytic solution, is one of research focus of present material surface modifying technology.Micro-arc oxidation films is a matrix growth in situ ceramic membrane, in conjunction with firm, ceramic membrane is evenly fine and close, porosity ratio is low, and corrosion resistance, wear resistance are good, and this technical matters is simple simultaneously, environmental pollution is little, the parts processed ability is strong, and particularly the workability to irregular part, hole, weld seam is better than other surface ceramic metallization processes, is a kind of rising process of surface treatment.
It is generally acknowledged that micro-arc oxidation films mainly is made up of compacted zone and weaker zone, compacted zone and matrix bond good with outside weaker zone interlocking together.Compacted zone crystal grain is tiny, and voids is very little, does not have obvious pore and other defect, and hardness and insulation resistance are all very big; Weaker zone crystal grain is thicker, has a lot of holes and other defect, and is more coarse loose, and have a lot of microscopic cracks inwardly to expand again around the hole.But compacted zone and weaker zone do not have tangible separatrix.
Test shows that at the differential arc oxidation initial stage, ceramic membrane is comparatively fine and close, does not almost observe weaker zone, but along with the prolongation in processing time and thickening of rete, forms loose top layer gradually, and final weaker zone proportion can be up to about 90% of rete total thickness.The reason that forms loose surface layer is owing to the differential arc oxidation later stage, and higher micro-arc discharge voltage makes that the oxidizing process of internal layer is carried out on the one hand to the puncture that repeats of original rete, and the existence of the discharge hole of large-size forms weaker zone on the other hand.
The differential arc oxidation time should rationally be controlled.Though along with the increase of oxidization time, oxide thickness increases gradually, reach the regular hour after, the thickness speedup slows down even no longer increases.Oxidization time is long also can to cause in the rete that secondary discharge phenomenon or formation appears in some metal the weaker zone proportion too high.The thickness of testing surface aluminum alloy differential arc oxidation film general maximum reach 400 microns (0.4mm), but too much electric energy and time must be consumed, and the rete total thickness is weaker zone more than 85%, therefore THICKNESS CONTROL is comparatively suitable between 10 microns to 370 microns, owing to be the ceramic layer of alloy matrix aluminum growth in situ, so in conjunction with firm, ceramic film is evenly fine and close between the two.
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment 1: the motorcycle brake dish.Owing to the braking force that the motorcycle brake dish is required is less with respect to automobile, radiating effect is better relatively, so the general solid construction that adopts is used aluminum alloy 2219 plate stamping moulding here, and through machining, integer, grinding, heat treatment promptly can be made into the brake disc blank; Pass through oil removing again, clean, differential arc oxidation cleans, and can finish after the subsequent treatment.
Wherein differential arc oxidation electrolytic solution is adjusted at pH value between the 11-13 for being main component with water glass.Solution flows in electrolytic bath by circulating cooling system.The stainless steel electrolytic groove connects power cathode, and aluminum alloy brake disc blank connects power anode.Utilize the stirring cooling electrolyte temperature of air pump to be 20-50 ℃, the processing time is 30-50 minute, at the AL of sprocket surface growth in situ one deck densification
2O
3Ceramic layer is as Fig. 1, through detecting its AL
2O
3Ceramic layer thickness is 50 microns, and its surface hardness reaches HV1300.Dry friction coefficient is 0.18.After 400 kilometers entrucking was tested on the spot through 60 days, the surface by micro-arc oxidation layer did not have noticeable wear and comes off.
Embodiment 2: automobile brake disc.The operating load of automobile brake disc is very big, and temperature rise is obvious, the temperature rise when working in order to reduce brake disc, and disc thickness is unsuitable too small, for ventilation and heat, generally casts out ventilating hole channel between two working surfaces of brake disc.Lasting for the working stability that guarantees brake disc simultaneously, present embodiment is made automobile brake disc blank spare with aluminum alloy 2219 usefulness semisolid moulding thixotroping moulding, pass through machining, the brake disc blank is made in grinding, heat treatment, passes through oil removing again, clean, differential arc oxidation cleans, and can finish after the subsequent treatment.Wherein differential arc oxidation electrolytic solution is adjusted at pH value between the 11-13 for being main component with water glass.Solution flows in electrolytic bath by circulating cooling system.The stainless steel electrolytic groove connects power cathode, and aluminum alloy brake disc blank connects power anode.Utilize the stirring cooling electrolyte temperature of air pump to be 20-55 ℃, the processing time is 50-70 minute, at the AL of sprocket surface growth in situ one deck densification
2O
3Ceramic layer is as Fig. 1.Through detecting its AL
2O
3Ceramic layer thickness is 80 microns, and its surface hardness reaches HV1400.Dry friction coefficient is 0.18.After test room's wear test in 60 days, the surface by micro-arc oxidation layer does not have noticeable wear and comes off.
Claims (5)
1. Motor Vehicle aluminum alloy brake disc that braking surface is an arc differential oxide ceramic layer, it is characterized in that: the body material of brake disc is an aluminum alloy, the inside and outside braking surface of brake disc is coated with aluminium oxide AL
2O
3Ceramic film [1].
2. the Motor Vehicle aluminum alloy brake disc that braking surface according to claim 1 is an arc differential oxide ceramic layer is characterized in that: brake disc is solid brake disc.
3. the Motor Vehicle aluminum alloy brake disc that braking surface according to claim 1 is an arc differential oxide ceramic layer, it is characterized in that: brake disc has ventilating hole channel.
4. the Motor Vehicle aluminum alloy brake disc that braking surface according to claim 1 is an arc differential oxide ceramic layer is characterized in that: AL
2O
3Ceramic film [1] is that the inside and outside braking surface at aluminum alloy brake disc matrix adopts microarc oxidation treatment process to generate.
5. the Motor Vehicle aluminum alloy brake disc that braking surface according to claim 1 is an arc differential oxide ceramic layer is characterized in that: AL
2O
3The thickness of ceramic film [1] is 10 microns to 370 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910212580XA CN101963199A (en) | 2009-11-09 | 2009-11-09 | Motor vehicle aluminium alloy brake with micro-arc oxidation ceramic coating braking surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910212580XA CN101963199A (en) | 2009-11-09 | 2009-11-09 | Motor vehicle aluminium alloy brake with micro-arc oxidation ceramic coating braking surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101963199A true CN101963199A (en) | 2011-02-02 |
Family
ID=43516210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910212580XA Pending CN101963199A (en) | 2009-11-09 | 2009-11-09 | Motor vehicle aluminium alloy brake with micro-arc oxidation ceramic coating braking surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101963199A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606660A (en) * | 2012-03-05 | 2012-07-25 | 临安华龙摩擦材料有限公司 | Brake lining of electromagnetic clutch and preparation method for same |
| CN102853005A (en) * | 2011-07-02 | 2013-01-02 | 王勇 | Novel split brake disc |
| CN104109893A (en) * | 2013-04-17 | 2014-10-22 | 孙德杰 | Brake disc surface-hardening treatment process technology |
| CN105556005A (en) * | 2013-07-15 | 2016-05-04 | 福特全球技术公司 | Method for producing a brake disk, and brake disk |
| CN106624675A (en) * | 2017-01-24 | 2017-05-10 | 穆耀钊 | Brake disc or brake drum and preparation method for wear-resisting brake disc or brake drum |
| CN107723645A (en) * | 2017-10-18 | 2018-02-23 | 北京天宜上佳新材料股份有限公司 | A kind of repeatable lightweight brake disc utilized and preparation method thereof |
| CN109868386A (en) * | 2019-03-08 | 2019-06-11 | 安徽信息工程学院 | A kind of wear-resistant material and preparation method thereof |
| CN110117808A (en) * | 2019-04-29 | 2019-08-13 | 湖北维斯曼新能源科技有限公司 | A method of suitable for scroll type air compressor sound panel surface oxidation processes |
-
2009
- 2009-11-09 CN CN200910212580XA patent/CN101963199A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853005A (en) * | 2011-07-02 | 2013-01-02 | 王勇 | Novel split brake disc |
| CN102606660A (en) * | 2012-03-05 | 2012-07-25 | 临安华龙摩擦材料有限公司 | Brake lining of electromagnetic clutch and preparation method for same |
| CN102606660B (en) * | 2012-03-05 | 2015-10-14 | 临安华龙摩擦材料有限公司 | Magnetic clutch brake strip and preparation method thereof |
| CN104109893A (en) * | 2013-04-17 | 2014-10-22 | 孙德杰 | Brake disc surface-hardening treatment process technology |
| CN104109893B (en) * | 2013-04-17 | 2016-12-28 | 孙德杰 | Brake disc Surface hardening treatment Technology |
| CN105556005A (en) * | 2013-07-15 | 2016-05-04 | 福特全球技术公司 | Method for producing a brake disk, and brake disk |
| CN105556005B (en) * | 2013-07-15 | 2018-09-21 | 福特全球技术公司 | Method and brake disc for producing brake disc |
| CN106624675A (en) * | 2017-01-24 | 2017-05-10 | 穆耀钊 | Brake disc or brake drum and preparation method for wear-resisting brake disc or brake drum |
| CN106624675B (en) * | 2017-01-24 | 2018-07-27 | 西安傲博赛制动科技有限公司 | The preparation method and brake disc or brake drum of wear-resisting brake disc or brake drum |
| CN107723645A (en) * | 2017-10-18 | 2018-02-23 | 北京天宜上佳新材料股份有限公司 | A kind of repeatable lightweight brake disc utilized and preparation method thereof |
| CN109868386A (en) * | 2019-03-08 | 2019-06-11 | 安徽信息工程学院 | A kind of wear-resistant material and preparation method thereof |
| CN110117808A (en) * | 2019-04-29 | 2019-08-13 | 湖北维斯曼新能源科技有限公司 | A method of suitable for scroll type air compressor sound panel surface oxidation processes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101963199A (en) | Motor vehicle aluminium alloy brake with micro-arc oxidation ceramic coating braking surface | |
| Kiran et al. | Dry sliding wear behavior of heat treated hybrid metal matrix composite using Taguchi techniques | |
| CN103074660B (en) | Al and Alalloy surface ZrO 2/ Al 2o 3the preparation method of composite membrane | |
| CN104313572B (en) | A kind of preparation method of aluminum alloy surface laser alloying Al Cr Ti Si Cu multi-principal elements alloy coatings | |
| CN104388927B (en) | Method for preparing high-hardness coating on aluminum alloy surface | |
| US20160215839A1 (en) | Method for producing a brake disk and brake disk | |
| CN112981488B (en) | Lubricating and wear-resistant composite coating prepared on surface of aviation aluminum alloy | |
| Gecu et al. | Improving wear resistance of 304 stainless steel reinforced AA7075 aluminum matrix composite by micro-arc oxidation | |
| CN102514444B (en) | High-strength aluminum alloy wheel | |
| CN106756255A (en) | A kind of wear-resistant coating that express elevator traction sheave is manufactured for laser | |
| Yu et al. | Influence of silicon on growth mechanism of micro-arc oxidation coating on cast Al–Si alloy | |
| Kuznetsov et al. | Machining of the ceramic oxide coating formed by plasma electrolytic oxidation | |
| CN104328315A (en) | Process method for improving friction and wear properties of multi-element aluminum-silicon alloy | |
| CN104357838B (en) | Method for refining silicide phase in multi-principal-element alloy coating | |
| Zhang et al. | Preparation and tribological properties of thin oxide coatings on an Al383/SiO2 metallic matrix composite | |
| CN109440166A (en) | A kind of magnesium lithium alloy surface raising wear resistance and corrosion resistance micro-arc oxidation compound treatment method | |
| CN113373439A (en) | Composite coating for improving surface wear resistance of 35CrMoV steel and preparation method thereof | |
| CN211942837U (en) | Forged high-strength aluminum alloy hub | |
| CN103115098B (en) | Automobile-use silumin brake disc | |
| CN109295348A (en) | A kind of preparation process of high-strength aluminum alloy brake disc | |
| CN102978675B (en) | Concrete delivery cylinder and manufacturing method thereof, and pumping device comprising concrete delivery cylinder | |
| CN216555078U (en) | Aluminum-based alloy brake disc with wear-resistant coating for railway vehicle | |
| CN104109893B (en) | Brake disc Surface hardening treatment Technology | |
| CN212079989U (en) | Aluminum-iron composite brake disc | |
| CN107345309B (en) | A kind of silumin plasma electrolytic oxidation ceramic coating preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110202 |