CN106086748A - A kind of heavy-duty gear nano surface coating and preparation method thereof - Google Patents
A kind of heavy-duty gear nano surface coating and preparation method thereof Download PDFInfo
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- CN106086748A CN106086748A CN201610581759.2A CN201610581759A CN106086748A CN 106086748 A CN106086748 A CN 106086748A CN 201610581759 A CN201610581759 A CN 201610581759A CN 106086748 A CN106086748 A CN 106086748A
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- Prior art keywords
- boron nitride
- tube
- many walls
- nano
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0068—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention provides a kind of heavy-duty gear nano surface coating and preparation method thereof, coating includes many walls boron nitride nano-tube and Ni-based composite metal powder, first weigh a certain amount of many walls boron nitride nano-tube to mix with Ni-based composite metal powder, then using this mixed-powder as plasma spraying feeding, on gear, prepare many walls boron nitride nano-tube by plasma spraying technology and strengthen ni base alloy coating, finally utilize hot isostatic pressing method that prepared coating is carried out densification.The gear coating obtained by the method, has excellent binding ability, toughness, wearability, corrosion resistance and fatigue resistance, such that it is able to significantly improve the service life of heavy-duty gear.
Description
Technical field
The present invention relates to gear surface process field, specifically a kind of heavy-duty gear nano surface coating and preparation side thereof
Method.
Background technology
Gear is one of transfer motion power, the critical component changing the direction of motion and speed in modern high end manufacture equipment, also
It it is easy wearing detail.The performance of gear directly governs service life and the production security of drive system.Gear engages in transmission
Time bear the multiple comprehensive function power such as periodic shock loading, bending stress, contact stress and frictional force, its damage type master
The gear teeth to be included fracture, the abrasion of face fatigue equivalent, tooth face agglutination, flank of tooth abrasive wear and flank of tooth Plastic Flow.Japan
The machinery industry investigation of mechanical society and University Of Chongqing finds, the gear caused because of the surface damage such as gear pitting corrosion and abrasion loses
Effect quantity accounts for the 74% of institute's investigation sample, gear teeth phenomenon of rupture seldom occurs.Therefore, the surface property of strengthening gear becomes raising
The reliability of gear driving pair and the main path extending its service life.In order to reach this requirement, it is necessary to gear is carried out
Surface Hardening Treatment.Conventional gear surface intensive treatment technology mainly includes carburizing, nitriding and carbo-nitriding etc..Such surface
Treatment technology has the advantages such as technique is simple and with low cost, but for the gear of high performance requirements, such as low-speed heave-load purposes tooth
Wheel, above-mentioned conventional surface treatment technology is still difficult to meet its requirement.Therefore for above-mentioned technical problem, it is necessary to provide a kind of new
The preparation method of heavy-duty gear nano surface coating, to overcome drawbacks described above.
Summary of the invention
The present invention is to solve problem of the prior art, it is provided that a kind of heavy-duty gear nano surface coating and preparation side thereof
Method, this coating has the binding ability of excellence, toughness, wearability, corrosion resistance and fatigue resistance.Such that it is able to significantly improve
The service life of heavy-duty gear.
The coating that the present invention provides includes many walls boron nitride nano-tube and Ni-based composite metal powder, and wherein, many walls nitrogenize
Boron Nanotube quality percentage ratio is 2-4%, and remaining is Ni-based composite metal powder, described Ni-based composite metal powder include as
The component 60%-65%Ni of lower mass percent, 0.001%-0.048%C, 0.015%-0.06%Si, 0.3%-0.9%
Mn, 10%-14.5%Cr, 15.5%-17.0%Mo, 4.0%-5.0%Fe, 1.5%-2.5%Co, 3.0%-4.5%W, its
Remaining is V.
Described Ni-based composite metal powder granularity is 30-50 micron.
Present invention also offers the preparation method of a kind of heavy-duty gear nano surface coating, comprise the following steps:
1) many walls boron nitride nano-tube and Ni-based composite metal powder, wherein many walls boron nitride nano-tube percent mass are weighed
Ratio is 2-4%；
2) by load weighted many walls boron nitride nano-tube ultrasonic disperse 30min in dehydrated alcohol；
3) the many walls boron nitride nano-tube after ultrasonic disperse is sufficiently mixed with Ni-based composite metal powder；
4) using step 3) in mixed powder as the feeding of plasma spraying, carry out plasma spraying and obtain many walls nitrogen
Change boron nanotube and strengthen ni base alloy coating；
5) coating prepared is carried out hip treatment.
Improving further, the process that is sufficiently mixed described in step 3 is carried out by planetary ball mill, the tank used during ball milling
Body is ceramic pot, and ball-milling medium bead is agate ball, and ratio of grinding media to material uses 2:1, and the speed setting of ball grinder is 400r/min, positive and negative
Two way alternate runs, and the rotating speed of ball mill rotating disk is about the 1/2 of ball grinder rotating speed, forward and reverse every 2 hours alternate runs, amounts to
Running 8 hours and stop ball mill and run, spherical tank takes off need to be placed one day, resampling, allows the powder of gained after ball milling have a relaxation
Henan process.
Improve further, step 4) described in the technological parameter of plasma spraying be, running voltage 45V, operating current
400-600A, spray distance 100-120mm, main gas Ar pressure 0.7-0.9MPa, auxiliary gas H2Pressure 0.6-0.8Mpa, carrier gas N2Pressure
Power 0.6-0.8Mpa, powder feed rate 40g/min.
Improve further, step 4) described in many walls boron nitride nano-tube to strengthen ni base alloy coating thickness be 0.5-
0.8mm。
Improve further, step 5) described in hip treatment technique be, when temperature 1050 DEG C, pressure 10MPa, pressurize
Between 60min.
The present invention has the beneficial effects that: many walls boron nitride nano-tube prepared by the present invention strengthens ni base alloy coating and has excellent
Different binding ability, toughness, wearability etc., it is possible to use on low-speed heavy-loaded gear surface, improves gear at harsh bars such as heavy duties
Service life under part.And prepare simplicity, raw material is easy to get, and is worthy to be popularized in addition to low-speed heavy-loaded gear, and other need material
Material possesses the field of wear resistant corrosion resistant.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the invention will be further described.
Embodiment one
Appropriate many walls boron nitride nano-tube, and ultrasonic disperse in dehydrated alcohol is weighed according to 2% mass percent
30min；
It is sufficiently mixed in powder after dispersion is added Ni-based composite metal powder, the described each gold of Ni-based composite metal powder
Belonging to content is: 65%Ni, 0.04%C, 0.06%Si, 0.6%Mn, 10%Cr, 15.5%Mo, 4.0%Fe, 1.5%Co,
3.0%W, 0.3%V；
Matrix surface is deoiled cleaning, then carry out plasma spraying；Plasma Spray Parameters is: running voltage
45V, operating current 600A, spray distance 100mm, main gas Ar pressure 0.9MPa, auxiliary gas H2Pressure 0.8Mpa, carrier gas N2Pressure
0.8Mpa, powder feed rate 40g/min；
The coating of acquisition is carried out high temperature insostatic pressing (HIP) densification: temperature 1050 DEG C, pressure are 10MPa, the dwell time is
60min, i.e. obtaining thickness is that 0.5mm many walls boron nitride nano-tube strengthens ni base alloy coating.
Embodiment two
Appropriate many walls boron nitride nano-tube, and ultrasonic disperse in dehydrated alcohol is weighed according to 3% mass percent
30min；
It is sufficiently mixed in powder after dispersion is added Ni-based composite metal powder, the described each gold of Ni-based composite metal powder
Belonging to content is: 65%Ni, 0.04%C, 0.06%Si, 0.6%Mn, 10%Cr, 15.5%Mo, 4.0%Fe, 1.5%Co,
3.0%W, 0.3%V；
Matrix surface is deoiled cleaning；Then plasma spraying is carried out；Plasma Spray Parameters is: running voltage
45V, operating current 600A, spray distance 110mm, main gas Ar pressure 0.9MPa, auxiliary gas H2Pressure 0.8Mpa, carrier gas N2Pressure
0.8Mpa, powder feed rate 40g/min；
The coating of acquisition is carried out high temperature insostatic pressing (HIP) densification: temperature 1050 DEG C, pressure are 10MPa, the dwell time is
60min, i.e. obtaining thickness is that 0.5mm many walls boron nitride nano-tube strengthens ni base alloy coating.
Embodiment three
Appropriate many walls boron nitride nano-tube, and ultrasonic disperse in dehydrated alcohol is weighed according to 4% mass percent
30min；
It is sufficiently mixed in powder after dispersion is added Ni-based composite metal powder, the described each gold of Ni-based composite metal powder
Belonging to content is: 60%Ni, 0.04%C, 0.06%Si, 0.6%Mn, 13%Cr, 16.5%Mo, 4.0%Fe, 1.5%Co,
4.0%W, 0.3%V；
Matrix surface is deoiled cleaning, then carry out plasma spraying；Plasma Spray Parameters is: running voltage
45V, operating current 600A, spray distance 110mm, main gas Ar pressure 0.9MPa, auxiliary gas H2Pressure 0.8Mpa, carrier gas N2Pressure
0.8Mpa, powder feed rate 40g/min；
The coating of acquisition is carried out high temperature insostatic pressing (HIP) densification: temperature 1050 DEG C, pressure are 10MPa, the dwell time is
60min, i.e. obtaining thickness is that 0.8mm many walls boron nitride nano-tube strengthens ni base alloy coating.
Table 1 is the wear extent of carburizing part and coating, can obtain from table 1, and the coating prepared by the present invention compares carburizing part tool
There is the abrasion resistance properties of excellence.Its wear-resisting amount is about the 1/8 of carburizing part, and abrasion resistance properties relatively carburizing part improves about 7 times.
The concrete application approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, it is noted that for
For those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some improvement, this
A little improvement also should be regarded as protection scope of the present invention.
Claims (5)
1. a heavy-duty gear nano surface coating, it is characterised in that: include many walls boron nitride nano-tube and Ni-based composition metal
Powder, wherein, many walls boron nitride nano-tube mass percent is 2-4%, and remaining is Ni-based composite metal powder, and described is Ni-based
Composite metal powder includes the component of following mass percent, 60%-65%Ni, 0.001%-0.048%C, 0.015%-0.06%
Si, 0.3%-0.9%Mn, 10%-14.5%Cr, 15.5%-17.0%Mo, 4.0%-5.0%Fe, 1.5%-2.5%Co, 3.0%-4.5%W,
Remaining is V；Described Ni-based composite metal powder granularity is 30-50 micron.
2. the preparation method of heavy-duty gear nano surface coating as claimed in claim 1, it is characterised in that comprise the following steps:
1) weighing many walls boron nitride nano-tube and Ni-based composite metal powder, wherein many walls boron nitride nano-tube mass percent is
2-4%；
2) by load weighted many walls boron nitride nano-tube ultrasonic disperse 30min in dehydrated alcohol；
3) the many walls boron nitride nano-tube after ultrasonic disperse is sufficiently mixed with Ni-based composite metal powder；
4) using powder mixed in step 3) as the feeding of plasma spraying, carry out plasma spraying and obtain many walls boron nitride
Nanotube strengthens ni base alloy coating；
5) coating prepared is carried out hip treatment.
The preparation method of heavy-duty gear nano surface coating the most according to claim 2, it is characterised in that: described in step 3
The process that is sufficiently mixed carried out by planetary ball mill, during ball milling use tank body be ceramic pot, ball-milling medium bead is agate
Nao ball, ratio of grinding media to material uses 2:1, and the speed setting of ball grinder is 400r/min, and positive and negative two way alternate runs, turning of ball mill rotating disk
Speed is about the 1/2 of ball grinder rotating speed, forward and reverse every 2 hours alternate runs, amounts to 8 hours stopping ball mill of operation and runs, ball
Tank takes off need to place one day, resampling.
4. its preparation method of the heavy-duty gear nano surface coating stated according to claim 2, it is characterised in that: described in step 4)
The technological parameter of plasma spraying be, running voltage 45V, operating current 400-600A, spray distance 100-120mm, main gas
Ar pressure 0.7-0.9MPa, auxiliary gas H2Pressure 0.6-0.8Mpa, carrier gas N2Pressure 0.6-0.8Mpa, powder feed rate 40g/min.
5. its preparation method of the heavy-duty gear nano surface coating stated according to claim 2, it is characterised in that: described in step 4)
Many walls boron nitride nano-tube strengthen ni base alloy coating thickness be 0.5-0.8mm；Hip treatment work described in step 5)
Skill is, 1050 ° of C of temperature, pressure 10MPa, dwell time 60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581759.2A CN106086748A (en) | 2016-07-21 | 2016-07-21 | A kind of heavy-duty gear nano surface coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581759.2A CN106086748A (en) | 2016-07-21 | 2016-07-21 | A kind of heavy-duty gear nano surface coating and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106086748A true CN106086748A (en) | 2016-11-09 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610581759.2A Withdrawn CN106086748A (en) | 2016-07-21 | 2016-07-21 | A kind of heavy-duty gear nano surface coating and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321640A (en) * | 2016-11-10 | 2017-01-11 | 无锡市明盛强力风机有限公司 | Solid lubrication ball bearing and preparation method thereof |
| CN106544617A (en) * | 2016-10-19 | 2017-03-29 | 无锡市江南橡塑机械有限公司 | A kind of low-speed heavy-loaded gear face coat and preparation method thereof |
| CN112546734A (en) * | 2020-12-08 | 2021-03-26 | 南京工业大学 | Method for manufacturing filter material |
-
2016
- 2016-07-21 CN CN201610581759.2A patent/CN106086748A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544617A (en) * | 2016-10-19 | 2017-03-29 | 无锡市江南橡塑机械有限公司 | A kind of low-speed heavy-loaded gear face coat and preparation method thereof |
| CN106321640A (en) * | 2016-11-10 | 2017-01-11 | 无锡市明盛强力风机有限公司 | Solid lubrication ball bearing and preparation method thereof |
| CN112546734A (en) * | 2020-12-08 | 2021-03-26 | 南京工业大学 | Method for manufacturing filter material |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161109 |
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| WW01 | Invention patent application withdrawn after publication |