CN104372294A - Special pin shaft for engine chains and vacuum ion-plating process - Google Patents
Special pin shaft for engine chains and vacuum ion-plating process Download PDFInfo
- Publication number
- CN104372294A CN104372294A CN201410657508.9A CN201410657508A CN104372294A CN 104372294 A CN104372294 A CN 104372294A CN 201410657508 A CN201410657508 A CN 201410657508A CN 104372294 A CN104372294 A CN 104372294A
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- China
- Prior art keywords
- bearing pin
- vanadium
- engine chain
- vacuum
- pin shaft
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
- C23C14/32—Vacuum evaporation by explosion; by evaporation and subsequent ionisation of the vapours, e.g. ion-plating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention relates to a special pin shaft for engine chains and a vacuum ion-plating process. According to the special pin shaft for the engine chains and the vacuum ion-plating process, the wear resistance and strength as well as service life of a pin shaft of a transmission chain of an engine, particularly the pin shaft of the chain of a high-power engine, can be effectively improved, and the surface of the pin shaft of the chain of the high-power engine is plated with a vanadium plating layer by virtue of the vacuum ion-plating process. The special pin shaft and the vacuum ion-plating process have the advantages that (1) the plating layer is uniform, rapidly shaped, high in density and hardness and hardly falls off; and (2) the plated pin shaft has very high wear resistance, fatigue strength and stability and furthermore, the service life of the pin shaft is greatly prolonged.
Description
Technical field
The present invention relates to one and effectively can improve driving engine chain hinge pin high-wearing feature, high strength and work-ing life, the particularly high-wearing feature of large power engine chain hinge pin, high strength and the special bearing pin of the engine chain in work-ing life and vacuum ionic depositing process, belongs to the special bearing pin of engine chain and manufactures field.
Background technology
At present, general Automotive Engine Chain bearing pin surface is processed by carbonitriding technology, carbonitriding is that one infiltrates carbon and nitrogen to workpiece surface simultaneously, and with carburizing for the main chemical heat treatment process infiltrating nitrogen simultaneously, this can improve fatigue resistance and the wear resistance of workpiece surface to a certain extent.But in actually operating, there is insoluble tissue defects: black net, black hole, black-tape always, these defects cause the surface hardness of part, fatigue strength and work-ing life greatly to be reduced, and particularly for large power motivity chain, then seem particularly outstanding.
Summary of the invention
Purpose of design: avoid the weak point in background technology, can improve driving engine chain hinge pin high-wearing feature, high strength and the special bearing pin of the engine chain in work-ing life and vacuum ionic depositing process effectively if a kind of.
Design: in order to realize above-mentioned purpose of design.Bearing pin is put in vacuum chamber and adopts arc-discharge techniques by the present invention, add certain voltage between negative electrode and positive electrode after, form argon-arc plasma field between the two, Coating Materials vanadium surface as negative electrode produces arc light, it is made to evaporate formation atoms metal, atoms metal is subject to electron impact and ionizes as metal ion when entering argon-arc plasma field, under electric field action, metal ion high velocity bombardment, as the bearing pin surface of anode, meanwhile passes into nitrogen or hydrocarbon polymer and can form vanadium nitride or the vanadium carbide coating with premium properties on bearing pin surface in vacuum chamber.
Technical scheme 1: the special bearing pin of a kind of engine chain, large power engine chain hinge pin surface adopts vacuum ionic depositing process to be coated with vanadium coating.
Technical scheme 2: a kind of engine chain special bearing pin vacuum ionic depositing process, ion bombardment sputter clean method is utilized to process large power engine chain hinge pin surface before plating, then bearing pin is put in vacuum chamber and adopts arc-discharge techniques, add certain voltage between negative electrode and positive electrode after, make to form argon-arc plasma field between the two, Coating Materials vanadium surface as negative electrode produces arc light and evaporation forms atoms metal, atoms metal is subject to electron impact and ionizes as metal ion when entering argon-arc plasma field, under electric field action, while the bearing pin surface of metal ion high velocity bombardment as anode, in vacuum chamber, pass into nitrogen or hydrocarbon polymer can form vanadium nitride or the vanadium carbide coating with premium properties on bearing pin surface.
Technical scheme 3: the special bearing pin vacuum ionic plating apparatus of a kind of engine chain, vacuum chamber divides two regions, be respectively electron beam heated filament bay I and workpiece coating chamber II, two interval differential pressure plates separate, electron beam evaporation source and electron beam gun are placed in differential pressure plate side, a vacuum machine is equipped with in vacuum chamber, differential pressure plate opposite side is equipped with activated electrode and is connected with the positive pole of power supply, on the right side of activated electrode, electric motor is housed, bearing pin jack panel there are 10 degree of depth be the shrinkage pool of 1mm, each shrinkage pool can stablize placement bearing pin to be plated, heated tray is had below bearing pin jack panel, heated tray is connected with electric motor by pole, the electric motor the other end is connected with power cathode and pole and power supply have loop, workpiece coating chamber II side responds gas inlet.
The present invention compared with background technology, one be the application's coating evenly and formation speed is fast, plated layer compact degree is high, the high and difficult drop-off of hardness; Two is that plating rear pin shaft not only has very high wear resistance, fatigue strength and stability, and greatly improves the work-ing life of bearing pin.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram that bearing pin carries out ion plating vanadium.
Fig. 2 is the metallograph that bearing pin carbonitriding amplifies after 400 times.
Fig. 3 is that bearing pin plating vanadium amplifies the metallograph after 400.
Fig. 4 is that plating vanadium layers thickness is on the impact of hardness.
Fig. 5 is that plating vanadium layers thickness affects specific wear rate.
Fig. 6 is the complexion after carbonitriding bearing pin weares and teares 5 hours on wear testing machine.
Fig. 7 is the complexion after plating vanadium bearing pin weares and teares 5 hours on wear testing machine.
Embodiment
Embodiment 1: the special bearing pin of a kind of engine chain, large power engine chain hinge pin surface adopts vacuum ionic depositing process to be coated with vanadium coating.The described large power engine chain hinge pin plated surface vanadium degree of depth is 1-3 μm and thickness of coating is even.
Embodiment 2: with reference to Fig. 2-Fig. 7.On the basis of embodiment 1, a kind of engine chain special bearing pin vacuum ionic depositing process, ion bombardment sputter clean method is utilized to process large power engine chain hinge pin surface before plating, then bearing pin is put in vacuum chamber and adopts arc-discharge techniques, add certain voltage between negative electrode and positive electrode after, make to form argon-arc plasma field between the two, Coating Materials vanadium surface as negative electrode produces arc light and evaporation forms atoms metal, atoms metal is subject to electron impact and ionizes as metal ion when entering argon-arc plasma field, under electric field action, while the bearing pin surface of metal ion high velocity bombardment as anode, in vacuum chamber, pass into nitrogen or hydrocarbon polymer can form vanadium nitride or the vanadium carbide coating with premium properties on bearing pin surface.
Embodiment 3: with reference to accompanying drawing 1.The special bearing pin vacuum ionic plating apparatus of a kind of engine chain, comprises vacuum chamber 1, differential pressure plate 2, reaction gas inlet 3, activated electrode 4, bearing pin to be plated 5, bearing pin jack panel 6, heated tray 7, electric motor 8, power supply 9, slide rheostat 10, electron beam gun 11, vacuum machine 12, electron beam evaporation source 13.Vacuum chamber divides two regions, be respectively electron beam heated filament bay I and workpiece coating chamber II, two interval differential pressure plates 2 separate, electron beam evaporation source 13 and electron beam gun 11 are placed in differential pressure plate 2 side, for ensureing indoor maintenance vacuum state, be equipped with a vacuum machine 12.Differential pressure plate 2 opposite side is equipped with activated electrode 4 and is connected with the positive pole of power supply 9, electric motor 8 is housed on the right side of activated electrode 4, bearing pin jack panel 6 there are 10 degree of depth be the shrinkage pool of 1mm, each shrinkage pool can stablize placement one bearing pin 5 to be plated, heated tray 7 is had below bearing pin jack panel, heated tray 7 is connected with electric motor 8 by pole, and electric motor 8 the other end is connected with power supply 9 negative pole and pole and power supply 9 have loop, and workpiece coating chamber II side responds gas inlet 3.
The principle of work of this vacuum ion plating film device: utilize vacuum machine 12 that vacuum chamber 1 is adjusted to certain vacuum degree, pass into nitrogen from entrance 3, starts heated tray 7 and makes bearing pin jack panel reach assigned temperature, make bearing pin 5 thermally equivalent to be plated.Heating with electron beam gun 11 with vanadium is that the electron beam evaporation source 13 of material makes vanadium evaporate, positive voltage in addition on activated electrode 4, due to geseous discharge, plasma discharge district is formed between activated electrode 4 and electron beam evaporation source 13, the vanadium ion gone out from electron beam evaporation source 13 expanding and the Nitrogen ion that is ionized to through plasma discharge district to bearing pin to be plated 5 accelerated motion being added with negative voltage, impact to bearing pin 5 to be plated with high-energy, will there is chemical reaction when arriving bearing pin to be plated 5 surface being heated to certain temperature in vanadium ion and Nitrogen ion, form vanadium nitride film.For enabling bearing pin 5 surface to be plated uniform coated, insert bottom dish 6 at pin shaft hole and have a pole to be connected with electric motor 8, electric motor 8 can at the uniform velocity rotate, to ensure that bearing pin to be plated 5 surface being in different positions can both be impacted by vanadium ion and Nitrogen ion.Change slide rheostat 10 and carry out regulating voltage size, thus change bombardment by ions energy size, reach the object controlling the coating degree of depth.
Carbonitriding phasor as shown in Figure 2, can find out in matrix to there is more residual austenite, and this can cause nitrided layer hardness to reduce, and friction durability reduces.If remained austenite content will be controlled well, then to control temperature, time, medium composition and supply well, but more difficult in actually operating.
Phasor as shown in Figure 3, can find out that plating vanadium bearing pin material is evenly distributed, between coating and matrix, bonding strength is good, and coating is dense, and surface hardness is improved greatly, improves wear resistance and shearing resistance.
Be illustrated in figure 4 the impact of plating vanadium layers thickness effects on surface hardness, from figure, curve can find out that film thickness is thicker, and its surface hardness is higher.
Be illustrated in figure 5 plating vanadium layers thickness to the impact of specific wear rate, along with thickness of coating increases, specific wear rate reduces, to finally tending to be steady.
Can obtain as Fig. 6 and Fig. 7 compares, the wear test carried out under the same conditions, the breakage of carbonitriding bearing pin surface is very serious, and plates vanadium bearing pin surface and still do not change, and illustrates that the wear resistance of the bearing pin plated after vanadium is more better than the wear resistance of carbonitriding bearing pin.
It is to be understood that: although above-described embodiment to be contrasted detailed text description to mentality of designing of the present invention; but these text descriptions; just the simple text of mentality of designing of the present invention is described; instead of the restriction to mentality of designing of the present invention; any do not exceed mentality of designing of the present invention combination, increase or amendment, all fall within the scope of protection of the present invention.
Claims (5)
1. the special bearing pin of engine chain, is characterized in that: large power engine chain hinge pin surface adopts vacuum ionic depositing process to be coated with vanadium coating.
2. the special bearing pin of engine chain according to claim 1, is characterized in that: the described large power engine chain hinge pin plated surface vanadium degree of depth is 1-3 μm and thickness of coating is even.
3. an engine chain special bearing pin vacuum ionic depositing process, it is characterized in that: before plating, utilize ion bombardment sputter clean method to process large power engine chain hinge pin surface, then bearing pin is put in vacuum chamber and adopts arc-discharge techniques, add certain voltage between negative electrode and positive electrode after, make to form argon-arc plasma field between the two, Coating Materials vanadium surface as negative electrode produces arc light and evaporation forms atoms metal, atoms metal is subject to electron impact and ionizes as metal ion when entering argon-arc plasma field, under electric field action, while the bearing pin surface of metal ion high velocity bombardment as anode, in vacuum chamber, pass into nitrogen or hydrocarbon polymer can form vanadium nitride or the vanadium carbide coating with premium properties on bearing pin surface.
4. the special bearing pin vacuum ionic plating apparatus of engine chain, it is characterized in that: vacuum chamber (1) point two regions, be respectively electron beam heated filament bay (I) and workpiece coating chamber (II), two intervals differential pressure plate (2) separate, electron beam evaporation source (13) and electron beam gun (11) are placed in differential pressure plate (2) side, a vacuum machine (12) is equipped with in vacuum chamber, differential pressure plate (2) opposite side is equipped with activated electrode (4) and is connected with the positive pole of power supply (9), on activated electrode (4) right side, electric motor (8) is housed, bearing pin jack panel (6) there are 10 degree of depth be the shrinkage pool of 1mm, each shrinkage pool can stablize placement bearing pin to be plated (5), heated tray (7) is had below bearing pin jack panel, heated tray (7) is connected with electric motor (8) by pole, electric motor (8) the other end is connected with power supply (9) negative pole and pole and power supply (9) have loop, workpiece coating chamber (II) side responds gas inlet (3).
5. the special bearing pin vacuum ionic plating apparatus of a kind of engine chain according to claim 4, be is characterized in that: be connected with power supply (9) by slide rheostat (10) at activated electrode (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410657508.9A CN104372294B (en) | 2014-11-19 | 2014-11-19 | The special bearing pin of engine chain and vacuum ionic depositing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410657508.9A CN104372294B (en) | 2014-11-19 | 2014-11-19 | The special bearing pin of engine chain and vacuum ionic depositing process |
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| Publication Number | Publication Date |
|---|---|
| CN104372294A true CN104372294A (en) | 2015-02-25 |
| CN104372294B CN104372294B (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410657508.9A Active CN104372294B (en) | 2014-11-19 | 2014-11-19 | The special bearing pin of engine chain and vacuum ionic depositing process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296940A (en) * | 2015-11-02 | 2016-02-03 | 杭州持正科技股份有限公司 | Carbonitriding and vacuum ion plating vanadium technology for engine timing chain pin shaft |
| CN105951096A (en) * | 2016-05-06 | 2016-09-21 | 黄山中链科技有限公司 | Vacuum ion vanadium plating process for engine chain |
| CN106811725A (en) * | 2015-11-27 | 2017-06-09 | 中国科学院宁波材料技术与工程研究所 | Temperature range self adaptation lubricant coating wide and preparation method and application |
| CN108149199A (en) * | 2017-12-19 | 2018-06-12 | 环球传动泰州有限公司 | The processing method of chain axis pin peculiar to vessel |
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| EP0309733A1 (en) * | 1987-09-26 | 1989-04-05 | Detlev Dr. Repenning | Process for the production of layers with a high degree of hardness and/or low friction properties and containing at least two components |
| US20020102400A1 (en) * | 1999-11-29 | 2002-08-01 | Vladimir Gorokhovsky | Composite vapour deposited coatings and process therefor |
| CN101892450A (en) * | 2010-05-11 | 2010-11-24 | 青岛征和工业有限公司 | Nitrocarburizing treatment method of pin shaft of engine toothed chain |
| CN103899708A (en) * | 2014-03-28 | 2014-07-02 | 杭州东华链条集团有限公司 | Chain applicable to low temperature environments and production method thereof |
| CN204281845U (en) * | 2014-11-19 | 2015-04-22 | 杭州持正科技有限公司 | The special bearing pin vacuum ionic plating apparatus of engine chain |
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2014
- 2014-11-19 CN CN201410657508.9A patent/CN104372294B/en active Active
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| EP0309733A1 (en) * | 1987-09-26 | 1989-04-05 | Detlev Dr. Repenning | Process for the production of layers with a high degree of hardness and/or low friction properties and containing at least two components |
| US20020102400A1 (en) * | 1999-11-29 | 2002-08-01 | Vladimir Gorokhovsky | Composite vapour deposited coatings and process therefor |
| CN101892450A (en) * | 2010-05-11 | 2010-11-24 | 青岛征和工业有限公司 | Nitrocarburizing treatment method of pin shaft of engine toothed chain |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296940A (en) * | 2015-11-02 | 2016-02-03 | 杭州持正科技股份有限公司 | Carbonitriding and vacuum ion plating vanadium technology for engine timing chain pin shaft |
| CN106811725A (en) * | 2015-11-27 | 2017-06-09 | 中国科学院宁波材料技术与工程研究所 | Temperature range self adaptation lubricant coating wide and preparation method and application |
| CN106811725B (en) * | 2015-11-27 | 2019-02-15 | 中国科学院宁波材料技术与工程研究所 | Wide adaptive lubricant coating of temperature range and the preparation method and application thereof |
| CN105951096A (en) * | 2016-05-06 | 2016-09-21 | 黄山中链科技有限公司 | Vacuum ion vanadium plating process for engine chain |
| CN105951096B (en) * | 2016-05-06 | 2018-08-21 | 黄山中链科技有限公司 | A kind of engine chain vacuum ion plating vanadium technique |
| CN108149199A (en) * | 2017-12-19 | 2018-06-12 | 环球传动泰州有限公司 | The processing method of chain axis pin peculiar to vessel |
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| Publication number | Publication date |
|---|---|
| CN104372294B (en) | 2017-06-13 |
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Address after: 311121 Haishu Road, Yuhang District, Zhejiang, No. 12 Hangzhou Road Patentee after: HANGZHOU SFR TECHNOLOGY CO., LTD. Address before: 311121 Haishu Road, Yuhang District, Zhejiang, No. 12 Hangzhou Road Patentee before: HANGZHOU CHIZHENG TECHNOLOGY CO., LTD. |