CN109234676A - A kind of diamond-like coating piston ring and preparation method containing transition zone - Google Patents
A kind of diamond-like coating piston ring and preparation method containing transition zone Download PDFInfo
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- CN109234676A CN109234676A CN201811115476.4A CN201811115476A CN109234676A CN 109234676 A CN109234676 A CN 109234676A CN 201811115476 A CN201811115476 A CN 201811115476A CN 109234676 A CN109234676 A CN 109234676A
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- piston ring
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- titanium nitride
- titanium
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- 239000011248 coating agent Substances 0.000 title claims abstract description 53
- 238000000576 coating method Methods 0.000 title claims abstract description 53
- 230000007704 transition Effects 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 76
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 38
- 239000000758 substrate Substances 0.000 claims abstract description 33
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000010936 titanium Substances 0.000 claims abstract description 31
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 31
- 238000000151 deposition Methods 0.000 claims description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 238000005238 degreasing Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000013527 degreasing agent Substances 0.000 description 2
- 238000005237 degreasing agent Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
Classifications
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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
- C23C14/0605—Carbon
-
- 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
- C23C14/0021—Reactive sputtering or evaporation
-
- 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
- C23C14/0641—Nitrides
-
- 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
- C23C14/325—Electric arc evaporation
Abstract
The present invention provides a kind of diamond-like coating piston ring and preparation method containing transition zone, including piston ring substrate, the piston ring substrate periphery is provided with the incremental titanium nitride layer of nitrogen content from the inside to the outside, the titanium nitride layer periphery is provided with diamond-like coating, production process of the present invention is simple, using the titanium nitride of incremental nitrogen content as the transition zone between diamond-like coating and piston ring, change the hardness of titanium nitride layer by the nitrogen amount of titanium nitride layer, so that the hardness of titanium nitride is located among titanium and diamond-like coating, the hardness gradient that can be effectively formed among from titanium to diamond-like coating, and then increase the anti-scratch and antistripping ability of coating on piston ring, the overall thickness of piston ring is unaffected simultaneously, avoid influencing the specification of piston ring, so that piston ring substrate has good service life, increase piston The practicability of ring.
Description
Technical field
The present invention relates to piston ring technical fields, and in particular to a kind of diamond-like coating piston ring containing transition zone and
Preparation method.
Background technique
The year two thousand twenty passenger car fuel oil consumes hundred kilometers of 5L of national standard hereinafter, this proposes height to engine works and automobile factory
It is required that and reducing the frictional work loss of engine is to reduce one of the important means of fuel oil consumption of automobile.Piston ring operating friction
Power loss accounts for 25% or more of the total frictional work loss of engine, so the friction loss for reducing piston ring reduces engine and fires
Oil consumption contribution is big；
The most effective way of the reduction frictional work loss of piston ring is using low-friction coefficient coating, diamond-like coating
Has the low friction requirement that low friction high abrasion characteristic just meets piston ring, diamond-like coating has hardness height, internal stress
Greatly, diamond-like coating is directly accomplished into piston ring surface, binding force it is difficult to ensure that, be easy to fall off；
For this purpose, it is proposed that a kind of diamond-like coating piston ring and preparation method containing transition zone.
Summary of the invention
The present invention provides a kind of diamond-like coating piston ring and preparation method containing transition zone, and utilization is gradually incremented by nitrogen
The titanium nitride of content is as the transition zone between diamond-like coating and piston ring, so that piston ring substrate has good use
Service life increases the practicability of piston ring.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of diamond-like coating piston ring and preparation method containing transition zone, including piston ring substrate, the piston
Ring base periphery is provided with the incremental titanium nitride layer of nitrogen content from the inside to the outside, and the titanium nitride layer periphery is provided with eka-gold
Hard rock coating.
Further, titanium layer is provided between the piston ring substrate and titanium nitride layer, and the thickness of titanium layer is less than or equal to
The 5%~10% of titanium nitride layer thickness.
Preferred embodiment is initially formed titanium layer deposition on the piston ring, and transition zone can be made to have very phase with piston ring substrate
Close heat distortion amount, and then continue depositing layers of titanium and be passed through nitrogen formation titanium nitride, make nitrogen while forming titanium nitride
Content is stepped up, and then changes the hardness of titanium layer, the diamond-like that the convenient and later period is formed through Magnetic filter vacuum cathode arc
It combines, improves the binding force between diamond-like, transition zone and piston ring.
Further, the thickness H of the titanium nitride layer1With the thickness H of diamond-like coating2There are following relationships: 1/50≤
H1/H2≤1/10。
Further, nitrogen element content y incremental from the inside to the outside in the titanium nitride layer and titanium nitride layer be from the inside to the outside
Thickness x is in there are following function ratio relationships: y=1.25x2~5x2。
Do not influence the diamond-like coating later period effect and diamond-like, the combination between transition zone and piston ring
Under the premise of power, the thickness of transition zone and diamond-like coating is reduced, piston ring is made to be suitable for more environment.
The preparation method of diamond-like coating piston ring containing transition zone, includes the following steps:
S1: carrying out roughness processing to piston ring substrate, and carry out cleaning by degreasing and hydrocarbon processing, to treated piston
Ring base clamping, wiping and shove charge；
S2: titanium nitride layer deposition is carried out, steps are as follows:
S21: it vacuumizes for the first time；
S22: heating in furnace is vacuumized for the second time；
S23: Ion Cleaning is carried out to piston ring substrate；
S24: in-furnace temperature is constant, and nitrogen is passed through into furnace, and nitrogen flow is incremented by, and titanium target, which is powered to running, carries out titanium nitride
Deposition；
S25: closing nitrogen valve, argon gas valve and titanium target power supply, carries out third time and vacuumizes；
S3: diamond-like coating deposition.
Further, the time x that nitrogen flow y incremental from the inside to the outside in the titanium nitride layer is passed through with nitrogen is in
There are following relationships: y=0.025x.
From the above technical scheme, it is simple that the invention has the following beneficial effects: production process, utilizes incremental nitrogen
The titanium nitride of content changes nitridation as the transition zone between diamond-like coating and piston ring, by the nitrogen amount of titanium nitride layer
The hardness of titanium layer can be effectively formed from titanium to diamond-like so that the hardness of titanium nitride is located among titanium and diamond-like coating
Hardness gradient among coating, and then increase the anti-scratch and antistripping ability of coating on piston ring, while the total thickness of piston ring
Spend it is unaffected, avoid influence piston ring specification increase piston ring so that piston ring substrate has good service life
Practicability.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is the curve graph of nitrogen content and titanium nitride layer thickness relationship in titanium nitride layer；
Fig. 3 is the flow for being passed through nitrogen and the curve graph for being passed through the time.
In figure: 1, piston ring substrate, 2, titanium nitride layer, 3, diamond-like coating.
Specific embodiment
It is excellent to a kind of diamond-like coating piston ring containing transition zone of the invention and preparation method with reference to the accompanying drawing
Embodiment is selected to be described in detail.
As depicted in figs. 1 and 2, a kind of diamond-like coating piston ring containing transition zone, including piston ring substrate 1, institute
It states 1 periphery of piston ring substrate and is provided with the incremental titanium nitride layer 2 of nitrogen content, 2 periphery of titanium nitride layer from the inside to the outside
It is provided with diamond-like coating 3, titanium layer is provided between preferred piston ring substrate 1 and titanium nitride layer 2, and the thickness of titanium layer is small
In equal to the 5%~10% of titanium nitride layer thickness.
It is initially formed titanium layer deposition on the piston ring, can make transition zone and piston ring substrate 1 that there is very similar heat
Deflection, so continue depositing layers of titanium and be passed through nitrogen formed titanium nitride, make while forming titanium nitride the content of nitrogen by
Step increases, and then changes the hardness of titanium layer, convenient to combine with the diamond-like that the later period is formed through Magnetic filter vacuum cathode arc,
The binding force between diamond-like, transition zone and piston ring is improved, so that diamond-like is that piston ring has excellent performance.
Meanwhile the thickness H of the titanium nitride layer 21With the thickness H of diamond-like coating 32There are following relationships: 1/50≤
H1/H2≤ 1/10, do not influence diamond-like coating using effect and diamond-like, the knot between transition zone and piston ring
Under the premise of resultant force, the thickness of transition zone and diamond-like coating is reduced, piston ring is made to be suitable for more environment.
The preparation method of diamond-like coating piston ring containing transition zone, includes the following steps:
S1: piston ring substrate is ground by side, repairs mouth, outside polishing Honing process, so that the side of piston ring substrate
Surface roughness reaches Rz3.2um hereinafter, roughness of excircle reaches Rz1.6um hereinafter, piston ring substrate is carried out 3 slot cleaning by degreasing
Processing:
Inject 70~80 DEG C of temperature of degreasing agent in the 1st slot, degreasing agent may be selected to be 15~25g/L of sodium hydroxide,
The mixed liquor of tertiary sodium phosphate 3g/L, sodium metasilicate 10g/L, sodium carbonate 5g/L, pH value 12~13 will that treated be living by step 1
Plug ring matrix is placed in slot 15 minutes；The piston ring substrate for handling completion in 1st slot is taken out, is placed in the 2nd slot, the 2nd slot
It is middle that piston ring impregnate 5 minutes using room temperature water source；Piston ring substrate after cleaning in 2nd slot is placed in the 3rd slot, benefit
It is cleaned again 5 minutes with 60~70 DEG C of water temperature of hot water；
Piston ring substrate is subjected to hydrocarbon cleaning: hydrocarbon cleaning being carried out being heated up to 90~120 DEG C first, it will be in step 2
The piston ring substrate that cleaning is completed is put into the agent for carbon hydrogen detergent after heating, and the ingredient of agent for carbon hydrogen detergent may be selected to be:
C12H26,30~50%, C3H3F5,20~40%, C2H5OH, 10~30% intermixture, soaking time are 15 minutes, step
Rapid two and step 3 be that the cleanup step of piston ring substrate cleans piston ring substrate after improving roughness, avoided
The binding force of the greasy dirt on surface, impurity effect and transition zone；
By clamping before the piston ring substrate progress plated film after hydrocarbon cleaning, nothing is utilized to clamping piston ring substrate surface
Water-ethanol wipe and shove charge；
S2: titanium nitride layer deposition, specific:
S21 is vacuumized for the first time, makes to reach high vacuum in furnace, vacuum degree is made to reach 5 × 10-3Pa；
S22 opens heater, and 180~200 DEG C of temperature range is simultaneously kept for 30 minutes, vacuumized for the second time, make vacuum
Degree reaches 5 × 10-5Pa；
S23 Ion Cleaning: piston ring substrate surface is activated using argon ion bombardment, argon flow is 70~100cc, bias
900HV, carries out bombardment 80 minutes with this condition by 150 DEG C of Ion Cleaning temperature；
S24 in-furnace temperature is constant, and titanium target, which is powered to running, carries out titanium nitride deposition, and titanium target current regulation is 25A, and into furnace
It is passed through nitrogen 30 minutes, nitrogen flow uniformly increases to 0.25CC by 0；
S25 closes nitrogen valve, argon gas valve and titanium target power supply, and heter temperature is set as 120 DEG C, carries out third time and takes out very
Sky makes vacuum degree in furnace reach 4 × 10-5Pa；
S3: diamond-like coating deposition: graphite target power supply, high-low bias are opened, high bias 1500V, low bias are made
1000V is passed through the argon gas that flow is 100CC, and the working time is 60 minutes, and diamond-like coating is made to reach 25um or so；
As shown in Figures 2 and 3, wherein in titanium nitride layer 2 nitrogen element content y incremental from the inside to the outside and titanium nitride layer 2 by
Interior to outer thickness x is in there are following function ratio relationships: y=1.25x2~5x2, nitrogen incremental from the inside to the outside member in titanium nitride layer
The time x that plain flow y and nitrogen are passed through is in there are following relationships: y=0.025x；
In S24 in step s 2, preferred first different nitrogen first deposit titanium layer, because of existing piston ring substrate material
Material is mainly steel and cast iron, and thermal expansion coefficient under the conditions of 20~300 DEG C is 11*10-6/K or so, makes transition zone and work
Plug ring has excellent binding force, while can also make the titanium deposited by being passed through the time of nitrogen and the control of flow
Layer containing small amount or close to zero nitrogen, be then gradually increased the content of nitrogen, titanium layer made to be converted into titanium nitride layer, by
Hardness is gradually promoted, piston ring is made to pass through transition zone preferably in conjunction with diamond-like coating, the good bonding strength with titanium layer works as piston
Ring base hardness is greater than titanium layer, then can directly carry out the deposition of titanium nitride layer, so that hard between piston ring substrate 1 and titanium nitride layer
Degree is close, and then improves the binding force of piston ring substrate and titanium nitride layer；
Using electronic stripping tester, diamond-like coating piston ring of the several groups with transition zone is chosen as embodiment, no
The diamond-like coating piston ring for having transition zone as a comparison case, under same time, identical environment, does coating stripping respectively
Experiment, obtains following list data:
| Peel force (N) | Glass result | |
| Embodiment 1 | 50 | It is unstripped |
| Embodiment 2 | 55 | It is unstripped |
| Embodiment 3 | 65 | It is unstripped |
| Comparative example 1 | 48 | Removing |
| Comparative example 2 | 45 | Removing |
It is obtained by experimental data: having the antistripping energy of the diamond-like coating of the diamond-like coating piston ring of transition zone
Power, the antistripping effect relative to the diamond-like coating piston ring for not having transition zone is preferable, and the peel force that can be born is more
Greatly, so that the service life is longer the later period, the practicability that piston ring uses is improved.Embodiment described above is only
Preferred embodiments of the present invention will be described, is not intended to limit the scope of the present invention, and is not departing from design of the present invention
Under the premise of spirit, the various changes and improvements that those of ordinary skill in the art make technical solution of the present invention should all be fallen
Enter in the protection scope that claims of the present invention determines.
Claims (6)
1. a kind of diamond-like coating piston ring containing transition zone, including piston ring substrate (1), it is characterised in that: the work
Plug ring matrix (1) periphery is provided with the incremental titanium nitride layer (2) of nitrogen content, titanium nitride layer (2) outer circle from the inside to the outside
Face is provided with diamond-like coating (3).
2. a kind of diamond-like coating piston ring containing transition zone according to claim 1, it is characterised in that: the work
Be provided with titanium layer between plug ring matrix (1) and titanium nitride layer (2), and the thickness of titanium layer be less than or equal to titanium nitride layer thickness 5%~
10%。
3. a kind of diamond-like coating piston ring containing transition zone according to claim 1, it is characterised in that: the nitrogen
Change the thickness H of titanium layer (2)1With the thickness H of diamond-like coating (3)2There are following relationships: 1/50≤H1/H2≤1/10。
4. a kind of diamond-like coating piston ring containing transition zone according to claim 1, it is characterised in that: the nitrogen
Change nitrogen element content y and the thickness x of titanium nitride layer (2) from the inside to the outside incremental from the inside to the outside in titanium layer (2) in there are following letters
Number is than relationship: y=1.25x2~5x2。
5. a kind of preparation side of diamond-like coating piston ring containing transition zone according to any one of claims 1-4
Method includes the following steps:
S1: carrying out roughness processing to piston ring substrate, and carry out cleaning by degreasing and hydrocarbon processing, to treated piston ring group
Body clamping, wiping and shove charge；
S2: titanium nitride layer deposition is carried out, steps are as follows:
S21: it vacuumizes for the first time；
S22: heating in furnace is vacuumized for the second time；
S23: Ion Cleaning is carried out to piston ring substrate；
S24: in-furnace temperature is constant, and the incremental nitrogen of flow is passed through into furnace, and titanium target, which is powered to running, carries out titanium nitride deposition；
S25: closing nitrogen valve, argon gas valve and titanium target power supply, carries out third time and vacuumizes；
S3: diamond-like coating deposition.
6. a kind of preparation method of diamond-like coating piston ring containing transition zone according to claim 5, feature
Be: the time x that nitrogen flow y incremental from the inside to the outside and nitrogen are passed through in the titanium nitride layer is in the presence of such as ShiShimonoseki
System: y=0.025x.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811115476.4A CN109234676A (en) | 2018-09-25 | 2018-09-25 | A kind of diamond-like coating piston ring and preparation method containing transition zone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811115476.4A CN109234676A (en) | 2018-09-25 | 2018-09-25 | A kind of diamond-like coating piston ring and preparation method containing transition zone |
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Family
ID=65056094
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930126A (en) * | 2019-04-18 | 2019-06-25 | 包头中科泰磁涂层科技有限责任公司 | A kind of physical gas-phase deposite method of brass nut surfacecti proteon |
| CN111005021A (en) * | 2019-12-20 | 2020-04-14 | 广东省新材料研究所 | Bionic composite coating, preparation method and application thereof, and flow passage component |
| CN112555409A (en) * | 2020-11-20 | 2021-03-26 | 安庆帝伯格茨活塞环有限公司 | Low-friction diamond-like coating piston ring with texture structure and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111005021A (en) * | 2019-12-20 | 2020-04-14 | 广东省新材料研究所 | Bionic composite coating, preparation method and application thereof, and flow passage component |
| CN112555409A (en) * | 2020-11-20 | 2021-03-26 | 安庆帝伯格茨活塞环有限公司 | Low-friction diamond-like coating piston ring with texture structure and preparation method thereof |
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Application publication date: 20190118 |