CN204026118U - A kind of rotation or flexible wear-resisting bar - Google Patents
A kind of rotation or flexible wear-resisting bar Download PDFInfo
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- CN204026118U CN204026118U CN201420149365.6U CN201420149365U CN204026118U CN 204026118 U CN204026118 U CN 204026118U CN 201420149365 U CN201420149365 U CN 201420149365U CN 204026118 U CN204026118 U CN 204026118U
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Abstract
Rotation or a flexible wear-resisting bar, be coated with titanium coating, titanium nitride coating, ceramal coating successively in metallic rod.The thickness of titanium coating, titanium nitride coating, ceramal coating is respectively 20-80 nanometers, 2-6 microns, 2-6 microns.Between titanium nitride coating and ceramal coating, be provided with excessive titanium coating, excessively thick 20-80 nanometers of titanium coating.The wear-resisting bar of the utility model can longer life cycle be applied to hydraulic pressure and pneumatic, mixing plant, propeller live axle etc.Can ensure working life of wear-resisting bar of the present utility model be five times of prior art processes to more than ten times, the utility model rete toughness is good especially, hardness is high especially, is difficult for collapsing film, combination force improves; The hardness on film of the present utility model surface reaches 2500-3400HV.
Description
Technical field
The utility model relates to a kind of rotation or flexible wear-resisting bar, especially hydraulic pressure and the action element in pneumatic field---piston rod and preparation method.
Background technique
Rotation or flexible wear-resisting bar have multiple application, if oil hydraulic cylinder (comprising pneumatic cylinder) is as the critical piece in hydraulic pressure and pneumatic field, as oil hydraulic cylinder comprises cylinder barrel, front and rear cover, piston, piston rod is (also referred to as being called air-leg in hydraulic rod or pneumatic cylinder, with the fixing actuating strut of piston), front hydraulic fluid port seat and rear hydraulic fluid port seat, rear end cover arranges oilhole, oilhole axially also can be set, the outer periphery of piston arranges Sealing mounting groove, hydraulic lock is set in end cap, the filler opening of hydraulic lock connects the second oilhole, the other end of the second oilhole connects the 3rd oilhole, the oil outlet of hydraulic lock connects the second oilhole, the control mouth of hydraulic lock connects inclined hole, hydraulic fluid port seat after the other end of inclined hole connects, hydraulic fluid port seat before rear hydraulic fluid port seat connects by oil pipe, in Sealing mounting groove, combined seal ring is set, combined seal ring comprises a matrix seal ring, star circle and O shape circle, the outer periphery of matrix seal ring arranges groove, and star circle is arranged in groove, and O shape circle is separately positioned between matrix seal ring and piston.Piston rod is also applied to spiral swing hydranlic pressure jar etc.Rotating wear-resistant bar can be various running shafts, comprises various mixing plants, engine-driving axle, propeller shaft etc.
Traditional processing method as oil cylinder and piston rod is: broaching cylinder body---right boring cylinder body---grinding cylinder body or roll extrusion cylinder body or piston rod, after roll extrusion, surface roughness is rolled front Ra3.2～6.3 μ m by building and is reduced to Ra0.4～0.8 μ m, surface hardness improves approximately 30%, and cylinder barrel internal surface fatigue strength improves 25%.If working life only considered cylinder barrel impact by oil cylinder, improve 2～3 times.Piston rod can carry out surface carburization technique.The sealing of piston rod is arranged on dust sealing the inside inside hydraulic cylinder end cover, and effect is to prevent that hydraulic oil from leaking outside, one of main pressure-bearing original paper, and unidirectional pressure-bearing, bears pressure larger, directly contacts with hydraulic oil.Under requirement state of rest, pressure maintaining performance is good, and in action, pressure-bearing wants high, and sealability will be got well, and friction factor is little, and anti-plasticating capacity is strong etc.Section form and the material of rod seal are more, select different section forms and material according to different working environments.
Be arranged between piston and piston rod is piston static sealing ring.They are all the static sealing rings in oil hydraulic cylinder, and end cap static seal is to prevent that hydraulic oil from spilling from the gap between end cap and cylinder barrel, one side pressure-bearing, require strong in anti-extrusion ability, good sealing effect etc.; Piston static seal is bidirectional bearing, prevents that hydraulic oil from spilling between piston and piston rod, requires anti-extrusion ability strong, good sealing effect etc.
Comparatively speaking, the wearing and tearing meeting leakage of oil of oil hydraulic cylinder, is also mainly because impurity carries out hydraulic oil; Comparatively speaking, be longer than piston rod its working life; This is identical relatively good due to oil hydraulic cylinder and piston seal, can directly not contact impurity.
The outside of piston rod piston static sealing ring is also provided with dirt-proof boot etc.Because the service condition of engineering machinery etc. is severe, when engineering machinery work, piston rod is more easily attached hard particles, comprise sandstone particulate etc., easily piston rod surface is pulled out to lines, the operating life of the normal piston rod using of engineering machinery is within 1 year at present, and the operating life of the piston rod of best quality is no more than 2 years.
Model utility content
The purpose of this utility model is: propose the wear-resisting bar of the much higher layer of a kind of wear-resisting bar, especially surface hardness of rotating or stretch structure, not only have high-wear resistance, surface hardness is high and fragility is low, and have extraordinary working life is durability simultaneously.
The technical solution of the utility model is: a kind of rotation or flexible wear-resisting bar, be coated with titanium coating, titanium nitride coating, ceramal coating successively in metallic rod.The thickness of titanium coating, titanium nitride coating, ceramal coating is respectively 20-80 nanometers, 2-7 microns, 2-7 microns.
Further, between titanium nitride coating and ceramal coating, be provided with excessive titanium coating, excessively thick 20-80 nanometers of titanium coating.
Utilize the wear-resisting bar that the utility model surface is ceramal coating.
Improvement of the present utility model is, plates excessive titanium coating and ceramal coating at above-mentioned ceramal coating surface again, coating thick 100-350 nanometers, 2-7 microns respectively.
Hard ceramic alloy is nitride and boride, nitrogen aluminum titanium alloy, chromium nitride, nitrogen Cr-Al alloy, tungsten boride alloy, zirconium boride alloy, titanium boride alloy, nitride or boride, or titanium niobium alloy.
Ceramal coating is nitrogen aluminum titanium alloy AlTiN, TiCN (TiCN), Ge Lvhejin titanium Ni Hejin titanium boride He Jin zirconium boride alloy or tungsten boride alloy. the surface hardness of material can reach 2500-3400HV or higher.
Utilize the wear-resisting bar that the utility model surface is ceramal coating, can greatly extend the working life in engineering machinery (comprising mixing plant, engine shaft), the life-span can extend 5 times or longer, is better than greatly the structure of surface carburization or carburized case.
The manufacture method of the utility model Wear-resisting piston rod, the metal surface of piston rod (can adopt the materials such as carbon steel, manganese steel, spring steel) is through cleaning processing and ion source cleaning, carry out coating covering with physical vacuum intermediate processing, the temperature of metal substrate is controlled at 150-200 DEG C, adopts and comprises that vacuum ion plating is as modes such as magnetron sputterings; First plate the pure titanium of 20-80 nanometer, then progressively add 2-7 microns of nitrogen titanium-nitride thickness, excessively 2-7 microns of titanium coating 20-80 nanometers, hard ceramic alloy layers, the content that excessively reduces gradually nitrogen in plating material in titanium coating titanium nitride composition is transitioned into pure titanium, at pure titanium coating surface hard ceramic alloy film, hard ceramic alloy comprises nitrogen aluminum titanium alloy, chromium nitride, nitrogen Cr-Al alloy, tungsten boride alloy, zirconium boride alloy, titanium boride alloy, nitride or boride, or titanium niobium alloy etc.Measured hardness 2800-3400HV, the combination force of film reaches 1.8kgf-2.0kgf.Piston rod is placed on the indoor rotating basis of plating and rotates, and target material is the material that is parallel to piston rod, and piston rod can be looked the structure of plating chamber, is parallel to ground or all can perpendicular to even plating under the condition of ground rotation.
The beneficial effects of the utility model are: hard ceramic alloy coating technique plates extensive use at small instruments and tools, nowadays solve effectively application on wear-resisting bar, that this field professional person wants a difficult problem of capturing for many years always, in the process of plating, improve the combination force of coating, when reducing the fragility of coating, particularly importantly also will control the hardness and the photometric brightness that improve piston rod surface coating, this is the difficult point place that this technology is captured.The wear-resisting bar of the utility model can longer life cycle be applied to hydraulic pressure and pneumatic, mixing plant, propeller live axle etc.Can ensure working life of wear-resisting bar of the present utility model be five times of prior art processes to more than ten times, the utility model rete toughness is good especially, hardness is high especially, is difficult for collapsing film, combination force improves.The hardness on film of the present utility model surface reaches 2500-3400HV, can resist the particle of 1800HV left and right hardness, and in use this wear-resisting bar can not damaged by the first-class particulate that may bring of dirt-proof boot.
Brief description of the drawings
Fig. 1 is the utility model cross-sectional structure schematic diagram.
Embodiment
On the basal plane 1 of metallic rod, be provided with successively titanium coating 2, titanium nitride coating 3, transition titanium coating 4, hard ceramic alloy layer 5.The thickness of titanium coating, titanium nitride coating, transition titanium coating, ceramal coating is preferably respectively 20-80 nanometers (50 about nanometers better), 2-4 microns, 20-80 nanometers, 2-4 microns, and as thicker in wear-resisting bar, coating is to 5-7 micron.The combination force of surveying this ceramal coating and steel pole face reaches 1.8-2kgf, and hardness reaches 2500-3400HV, and has good toughness.
In the utility model metallic rod, first plate 0.08 micron of pure titanium, then progressively adding nitrogen titanium-nitride reaches 2 or 4 microns and all can, transition titanium coating is that titanium nitride is transitioned into 0.08 micron of pure titanium (by regulating the amount of nitrogen in vacuum to reduce gradually, keep the evaporation in titanium source), on pure titanium, plate again hard ceramic alloy, if nitrogen aluminium titanium is to 2 or 5 microns of needs thickness, measured hardness is 2500-2800HV, combination force 1.6kgf-2.0kgf.The basal plane of metallic rod and the temperature of target are at 160 degrees Celsius.
Above ceramal is nitride and boride: nitrogen aluminum titanium alloy, nitrogen Cr-Al alloy, tungsten boride alloy, zirconium boride alloy, titanium boride alloy, titanium niobium alloy all can.Tungsten boride alloy, zirconium boride alloy, titanium boride alloy, titanium niobium alloy can be prepared into alloy target material, also can put many target ions coating apparatus in a target source by every kind of metal.
Preparation method of the present utility model, first carry out carrying out again under vacuum condition Ion Cleaning 5-15 minute physics plating, still plate 0.08 micron of pure titanium, then plate 3 microns of titanium nitrides, plate afterwards again 0.15 micron of titanium nitride transition layer to pure titanium, plate again titanium boride to 3 micron thickness cemented carbide, combination force 2kgf, measured hardness 2600-2800HV.The basal plane of metallic rod and the temperature of target are at 180 degrees Celsius.
When plating ceramal, can be that titanium boride and titanium nitride alternately plate and plate altogether 2-4 micron.
All size metallic rod basal plane is through Ultrasonic Cleaning, ion(ic) etching, thorough cleaning piston bar basal plane, by the means such as arc ion plating and magnetron sputtering, plasma spraying and advanced multiple-layer stacked coating process, and effectively control piston bar temperature distortion in course of working, piston rod has the Wear-resisting piston rod of the hard ceramic alloy of 2-8 micron thick coating through multilayer plating processing acquisition surface.The arc power in target source be controlled at 15-20V, 80-180A. solenoid controlled 15V-20V,
1—4A。
The embodiment of ceramal layer is as follows: Cr-Al alloy HV3000---and 3200, titanium niobium alloy HV3200---3400, titanium boride alloy HV2600---2800, zirconium boride alloy HV2800---3000, tungsten boride alloy HV2300---the power of 2500. magnetron sputterings is controlled at 60KW450-500V.Employing comprises that vacuum ion plating is as modes such as magnetron sputterings; First plate the pure titanium of 50-150 nanometer, then progressively add 2-4 microns of nitrogen titanium-nitride thickness, excessively 2-4 microns of titanium coating 50-150 nanometers, hard ceramic alloy layers, the content that excessively reduces gradually nitrogen in plating material in titanium coating titanium nitride composition is transitioned into pure titanium, at pure titanium coating surface ceramal film, ceramal is for comprising nitrogen aluminum titanium alloy, nitrogen Cr-Al alloy, tungsten boride alloy, zirconium boride alloy, titanium boride alloy, titanium niobium alloy etc.Measured hardness 2500-3400HV, the combination force of film reaches 1.6kgf-2.0kgf.
The measurement of hardness of the present utility model adopts HV-1000ZDT automatic turret microhardness testers, measuring range 1-4000HV.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. rotation or a flexible wear-resisting bar, is characterized in that being coated with successively in metallic rod titanium coating, titanium nitride coating, ceramal coating; The thickness of titanium coating, titanium nitride coating, ceramal coating is respectively 20-80 nanometers, 2-6 microns, 2-6 microns; Between titanium nitride coating and ceramal coating, be provided with excessive titanium coating, excessively thick 20-80 nanometers of titanium coating.
2. rotation according to claim 1 or flexible wear-resisting bar, is characterized in that plating excessive titanium coating and ceramal coating at above-mentioned ceramal coating surface again, respectively thick 100-350 nanometers, 2-6 microns of coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149365.6U CN204026118U (en) | 2014-03-28 | 2014-03-28 | A kind of rotation or flexible wear-resisting bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149365.6U CN204026118U (en) | 2014-03-28 | 2014-03-28 | A kind of rotation or flexible wear-resisting bar |
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| Publication Number | Publication Date |
|---|---|
| CN204026118U true CN204026118U (en) | 2014-12-17 |
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|---|---|---|---|
| CN201420149365.6U Expired - Fee Related CN204026118U (en) | 2014-03-28 | 2014-03-28 | A kind of rotation or flexible wear-resisting bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909968A (en) * | 2016-06-29 | 2016-08-31 | 安丘东旭机械有限公司 | Wear resisting piece |
-
2014
- 2014-03-28 CN CN201420149365.6U patent/CN204026118U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909968A (en) * | 2016-06-29 | 2016-08-31 | 安丘东旭机械有限公司 | Wear resisting piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190128 Address after: 214131 No. 113 Huaqing Road, Wuxi City, Jiangsu Province Patentee after: Wuxi Huamei board Co.,Ltd. Address before: 214131 No. 113 Huaqing Road, Wuxi City, Jiangsu Province Patentee before: Wang Liang |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |