CN110172662A - A kind of compound coating ceramic powders-Ni-based coating preparation method - Google Patents
A kind of compound coating ceramic powders-Ni-based coating preparation method Download PDFInfo
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- CN110172662A CN110172662A CN201910450482.3A CN201910450482A CN110172662A CN 110172662 A CN110172662 A CN 110172662A CN 201910450482 A CN201910450482 A CN 201910450482A CN 110172662 A CN110172662 A CN 110172662A
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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
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
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- 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
- C22C32/0052—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 carbides
-
- 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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- 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
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
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- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The present invention discloses a kind of preparation method of compound coating ceramic powders-Ni-based coating, specifically includes: choosing raw material and is mixed to get mixed powder, pre-processes steel matrix surface；Mixed powder is placed in spraying equipment, uses argon gas and hydrogen as the spray gas of plasma spraying equipment, for hydrogen as carrier gas, for nitrogen as powder feeding gas, spray distance is constant, is sprayed, and obtains required coating ceramic-Ni60 coating.Preparation method of the present invention coats Cr by using Ni60 powder, Co cladding WC ceramic powders and NiCr3C2Ceramic particle is as raw material, the coating of preparation has good wearability and fatigue performance, effectively improve the service life of workpiece, during the preparation process, there is good uniformity, dispersibility between each constituent element, the problem of avoiding oxidizable raw material and splashing, there is good practical value.
Description
Technical field
The invention belongs to ceramic coatings technical method fields, and in particular to a kind of compound coating ceramic powders-Ni-based coating
Preparation method.
Background technique
Currently, the preparation of coating for metal surfaces and polishing machine are always the preparation method of coating the problem of being concerned
It is one of the principal element for evaluating coating performance again.Researchers at home and abroad are to obtain coating table using Supersonic Plasma Spraying
One of the best approach of face performance, but since coating prepares raw material and obtained coating surface performance is closely bound up, so that former
The selection of material becomes complicated, in addition, some researchers using nano particle directly as sprayed on material, cause this method due to
It is smaller in spraying process chinese raw materials partial size, easy to oxidize and splashing very sensitive to temperature, and the mixing uniformity of powder
Be not it is ideal, the material grains being prepared are easy to grow up, and have some limitations.
Due to having good uniformity, dispersibility between metallic cover ceramic powder difference constituent element, for preparing particle
Enhance composite material, the interface binding power of ceramic powder can be improved in metallic cover ceramic powder and ceramic powder divides with metal phase
The uniformity of cloth is, it can be achieved that multi-level number of mechanisms complex intensifying.Tungsten carbide wc has high hardness and corrosion resistance performance, wear-resistant
The advantages of performance, mixing with Ni60 has preferable wettability, and since cobalt Co has self-lubricating function at high temperature, use Co
WC is coated, the raising of wearability will be promoted.NiCr coats Cr3C2Coating has good wear and corrosion behavior, and shows higher
Oxidation-resistance property, can under the high temperature conditions as friction, corrosion components protective coating.
Summary of the invention
The object of the present invention is to provide a kind of compound coating ceramic powders-Ni-based coating preparation methods, solve and are spraying
The problem of process chinese raw materials is oxidizable and splashes.
The technical scheme adopted by the invention is that a kind of compound coating ceramic powders-Ni-based coating preparation method, including with
Lower step:
Step 1, raw material are chosen and are uniformly mixed using planetary ball mill and obtain mixed powder, while pre-processing steel matrix
Material；
Step 2, by step 1, treated that mixed powder is placed in Supersonic Plasma Spraying equipment, uses argon gas and hydrogen
Spray gas of the gas as plasma spraying equipment, hydrogen are kept not as carrier gas, nitrogen as powder feeding gas, spray distance
Become, is sprayed, obtain required coating ceramic-Ni60 coating.
The beneficial effects of the present invention are:
Raw material described in step 1 mainly include three kinds, specially Ni60 powder, Co cladding WC ceramic powders and NiCr packet
Cover Cr3C2Ceramic particle；
The steel as matrix material is specially No. 45 modulation steel.
The particle diameter of Ni60 powder is 15-45 μm, is specifically grouped as by the group of following mass fraction: Ni, 70-72%,
Cr, 14.5-16%, B, 2.5-3.5%, Si, 3.5-4.0%, Fe, 6.5-7.0%, the sum of ratio of quality percent of the above component
It is 100%.
The particle diameter that Co coats WC ceramic powders is 15-45 μm, specific composed of the following components: WC, 85-90%, Co,
10-15%, the sum of ratio of quality percent of both the above component are 100%.
NiCr coats Cr3C2The particle diameter of ceramic particle is 15-45 μm, specific composed of the following components: Cr3C2、70-
80%, NiCr, 20-30%, the sum of ratio of quality percent of both the above component are 100%.
Pretreatment in step 1 specifically:
Steel as matrix material using cleaning up using acetone, is then preheated to 100 DEG C, at Brown Alundum sandblasting first
Reason, sandblasting distance are 120mm, and sandblasting angle is 60-70 °.
The technique of spraying described in step 2 are as follows: injection electric current is 300-360A, injection electric 100-120V, argon gas stream
Amount is 3.0-3.6m3/ h, hydrogen flowing quantity 0.2-0.25m3/ h, spray distance 100-120mm, powder feed rate 30-
35g/min, nitrogen flow 0.5-0.6m3/h。
The intensity of coating ceramic-Ni60 coating is not less than HRC68, coefficient of friction 0.42-0.52.
Coating ceramic-Ni60 coating in step 2 is also by acetone cleaning several times until completely, then use alcohol pair
Spray coating wiped clean.
A kind of compound coating ceramic powders-Ni-based coating preparation method of the present invention the utility model has the advantages that by using Ni60 powder
End, Co cladding WC ceramic powders and NiCr coat Cr3C2Ceramic particle has good wear-resisting as raw material, the coating of preparation
Performance and fatigue performance can effectively improve the service life of workpiece, have during the preparation process, between each constituent element good
Uniformity well, dispersibility improve the interface binding power of ceramic powder and the uniformity of ceramic powder and metal phase distribution, effectively
Avoid raw material it is oxidizable and splash the problem of, have good practical value.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of compound coating ceramic powders-Ni-based coating preparation method of the present invention；
Fig. 2 is dusty spray microscopic appearance and sample pattern electron-microscope scanning figure after spraying in the embodiment of the present invention 1, wherein
Fig. 2 (a) is Ni60 powder scanned picture, and Fig. 2 (b) is Co cladding WC ceramic powders scanned picture, and Fig. 2 (c) is NiCr cladding
Cr3C2Ceramic powders scanned picture, Fig. 2 (d) are compound coating ceramic powders-Ni-based coating sample photomacrographs that spraying obtains；
Fig. 3 is the scanning electron microscope (SEM) photograph of the coating prepared in the embodiment of the present invention 1, and wherein Fig. 3 (a) is the scanning of coating cross sections
Electron microscope, Fig. 3 (b) are the scanning electron microscope (SEM) photographs of coating surface；
Fig. 4 is the X-ray diffractogram of the coating prepared in the embodiment of the present invention 1；
Fig. 5 is the microcosmic schematic diagram of abrasion condition of the coating prepared in the embodiment of the present invention 1, and wherein Fig. 5 (a) is coating table
The wear morphology schematic diagram in face, Fig. 5 (b) are the schematic diagrames of surface of friction pair pattern；
Fig. 6 is the curve graph of the coefficient of friction of the coating of vegetation in the embodiment of the present invention 1.
In figure, 1. mixed powders, 2.Ni60 powder, 3.Co cladding WC ceramic powders, 4.NiCr cladding Cr3C2Ceramic particle,
5. steel as matrix material, 6. coating ceramic-Ni60 coatings.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of compound coating ceramic powders-Ni-based coating preparation method of the present invention, as shown in Figure 1, comprising the following steps:
Step 1, raw material are chosen and are uniformly mixed using planetary ball mill and obtain mixed powder 1, while pre-processing base steel
Body material 5；
Raw material mainly include three kinds, and specially Ni60 powder 2, Co cladding WC ceramic powders 3 and NiCr coat Cr3C2Pottery
Porcelain particle 4；Steel as matrix material 5 is specially No. 45 modulation steel.
As shown in Fig. 2 (a), Ni60 powder 2 in spherical or close spherical, diameter all at 100 μm hereinafter, surface non-oxidation color and
Nonmetal inclusion has preferable mobility.As shown in Fig. 2 (b), it is approximately loose ball that Co, which coats 3 individual particle of WC ceramic powders,
Shape structure, structure are more conducive to heat absorption of the powder in flame stream and transmitting to reduce the no cofusing particle in coating, improve coating
Quality, individual particle of each powder almost without fully sintered densification.As shown in Fig. 2 (c), NiCr coats Cr3C2Ceramic particle 4, powder
Spherical in shape or elliposoidal shape and be in open structure, ensure that the good fluidity of powder, metallic cover ceramic spraying powder contains
There is certain hole, it is inside and outside while heated to facilitate sprayed on material, good molten condition is obtained, in spraying process
In, by the coating function of NiCr, hard-phase particles rebound is less, is easier to prepare quality coating.
The particle diameter of Ni60 powder 2 is 15-45 μm, is specifically grouped as by the group of following mass fraction: Ni, 70-72%,
Cr, 14.5-16%, B, 2.5-3.5%, Si, 3.5-4.0%, Fe, 6.5-7.0%, the sum of ratio of quality percent of the above component
It is 100%.
The particle diameter that Co coats WC ceramic powders 3 is 15-45 μm, specific composed of the following components: WC, 85-90%,
Co, 10-15%, the sum of ratio of quality percent of both the above component are 100%.
NiCr coats Cr3C2The particle diameter of ceramic particle 4 is 15-45 μm, specific composed of the following components: Cr3C2、70-
80%, NiCr, 20-30%, the sum of ratio of quality percent of both the above component are 100%.
Pretreatment in step 1 specifically: steel as matrix material 5 is cleaned up using acetone first, is then preheated to 100
DEG C, using Brown Alundum blasting treatment, sandblasting distance is 120mm, and sandblasting angle is 60-70 °.
Step 2, by step 1, treated that mixed powder is placed in Supersonic Plasma Spraying equipment, uses argon gas and hydrogen
Spray gas of the gas as plasma spraying equipment, hydrogen are kept not as carrier gas, nitrogen as powder feeding gas, spray distance
Become, is sprayed, obtain required coating ceramic-Ni60 coating.
The technique of spraying specifically: injection electric current is 300-360A, injection electric 100-120V, argon flow 3.0-
3.6m3/ h, hydrogen flowing quantity 0.2-0.25m3/ h, spray distance 100-120mm, powder feed rate 30-35g/min, nitrogen
Throughput is 0.5-0.6m3/h。
It can also be to the coating ceramic-Ni60 coating cleaning for using acetone to obtain step 2 several times until clean, then
It is wiped using spray coating of the alcohol to spraying intermediate；The cleaning of alcohol and acetone can allow surface free from admixture.
A kind of compound coating ceramic powders-Ni-based coating, coating are prepared using preparation method as described above.
The intensity of coating ceramic-Ni60 coating is not less than HRC68, and the coefficient of friction of the coating is 0.42-0.52.
Embodiment 1
The starting components of use are as shown in table 1:
1. embodiment of table, 1 starting components figure
It is uniformly mixed by above-mentioned raw material and using planetary ball mill；
Steel as matrix material uses No. 45 quenched steel matrix, and No. 45 quenched steel matrix sizes are ∮ 20mm × 20mm, first uses acetone
Cleaning, is then preheated to 100 DEG C, and using Brown Alundum blasting treatment, sandblasting distance is 120mm, and sandblasting angle is 60 °；
After substrate pretreated, mixed powder is placed in Supersonic Plasma Spraying equipment, argon gas and hydrogen are used
As the spray gas of plasma spraying equipment, hydrogen is remained unchanged as carrier gas, nitrogen as powder feeding gas, spray distance,
It is sprayed, obtains required coating ceramic-Ni60 coating.
Specific process parameter is as shown in table 2:
The technological parameter of 2. embodiment of table, 1 Supersonic Plasma Spraying
Coating ceramic-Ni60 coating is cleaned several times until completely, then being wiped using alcohol spray coating using acetone
It wipes；Obtain the coating ceramic-Ni60 coating that thickness is 300 μm.
The microstructure of the coating of preparation is observed, while verifying the polishing machine of coating:
Coatings cross-section along preparation is cut, and is then processed by shot blasting；The microstructure and phase structure of coating are adopted
It is tested with scanning electron microscope and XRD diffraction analysis instrument, carries out microsclerometry, load using DHV1000 microhardness testers
0.2kg keeps 15s；
Using abrasive tester (MM-2000), its composite coating polishing machine is tested: the revolving speed of steel ball
(GCr15, HRC64) is 300rpm, test load 50N.
Analysis of experimental results:
As shown in Fig. 2 (4), the coating sample surface of preparation uniformly without pit the defects of.
To the coating of preparation by grind away polish and surface corrosion after, micro-analysis, such as Fig. 3 are carried out using scanning electron microscope
(a) shown in, coating cross sections distribution of each phase is relatively uniform, and coating is well combined with matrix, as shown in Fig. 3 (b), is dispersed on coating
A small amount of hole, especially interface defect are obvious.The presence (diameter: 1-2lm) of micropore may in coating process of setting
The clamping of gas is related, it is also possible to related with reacting for air with cermet particles.Reaction process is as follows:
2WC→W2C+C (1)
W2C→2W+C (2)
2C+O2→2CO(gas) (3)
As shown in figure 4, the main object of coating mutually may be by γ-Ni, WC, Cr3C2、W2C, (Fe, Cr)7C3Phase composition, W2C phase
Occur, be that slight oxidation and decarbonization has occurred in WC in spraying process, following reaction has occurred:
2WC+O2→W2C+CO2 (4)
The surrounding phase Co in apparent WC-Co is not found in coating, is obtained because X-ray diffractometer is Cu target
The peak Co arrived is very weak, is because setting rate is very when molten metal Co phase deposits on matrix in high speed flame stream on the other hand
Fastly, part Co becomes amorphous state, so that the peak Co broadens, so that the peak Co seems unobvious.Cr3C2The appearance of phase is spray coated
Journey high temperature causes carbide to decompose, and plays the role of strengthened coat.
As shown in Fig. 5 (a) and Fig. 5 (b), there is bending polishing scratch shape in coating surface, shows as abrasive wear, for friction
There is polishing scratch step in secondary surface (GCr15), illustrates that the hardness of coating is greater than the hardness (HRC63) of GCr15 ball, as shown in fig. 6,
When rubbing 7min, " V " shape is presented in curve, this is because the lower material of hardness produces first in the secondary sliding process floating coat that rubs
Raw elastic or plastic deformation, adhesion, hard particles or hard phase generate ditch dug with a plow by secondary its surface of indentation of friction and act on, coefficient of friction
Change between 0.54-0.61, and as the increase of fraction time is under the action of rubbing secondary alternate stress, coating surface is concave-convex
Uneven pattern has all polished substantially, and real contact area becomes larger between friction pair, so that rate of depreciation reduces, coefficient of friction becomes
Change is relatively stable, and abrasion also tends towards stability, and coefficient of friction is between 0.42-0.52, the coefficient of friction change rate in the 30min time
It is 32.67%.
Embodiment 2
The starting components of use are as shown in table 3:
3. embodiment of table, 2 starting components figure
It is uniformly mixed by above-mentioned raw material and using planetary ball mill；
Steel as matrix material uses No. 45 quenched steel matrix, and No. 45 quenched steel matrix sizes are ∮ 20mm × 20mm, first uses acetone
Cleaning, is then preheated to 100 DEG C, and using Brown Alundum blasting treatment, sandblasting distance is 120mm, and sandblasting angle is 70 °；
Mixed powder is placed in Supersonic Plasma Spraying equipment, uses argon gas and hydrogen as plasma spraying equipment
Spray gas, hydrogen remains unchanged as powder feeding gas, spray distance, sprayed as carrier gas, nitrogen, obtain required
Coating ceramic-Ni60 coating.
Specific process parameter is as shown in table 4:
The technological parameter of 4. embodiment of table, 2 Supersonic Plasma Spraying
Coating ceramic-Ni60 coating is cleaned several times until completely, then being wiped using alcohol spray coating using acetone
It wipes, obtains the coating ceramic-Ni60 coating that thickness is 292 μm.
Embodiment 3
The starting components of use are as shown in table 5:
5. embodiment of table, 3 starting components figure
It is uniformly mixed by above-mentioned raw material and using planetary ball mill；
Steel as matrix material uses No. 45 quenched steel matrix, and No. 45 quenched steel matrix sizes are ∮ 20mm × 20mm, first uses acetone
Cleaning, is then preheated to 100 DEG C, and using Brown Alundum blasting treatment, sandblasting distance is 120mm, and sandblasting angle is 65 °；
Mixed powder is placed in Supersonic Plasma Spraying equipment, uses argon gas and hydrogen as plasma spraying equipment
Spray gas, hydrogen remains unchanged as powder feeding gas, spray distance, sprayed as carrier gas, nitrogen, obtain required
Coating ceramic-Ni60 coating.
Specific process parameter is as shown in table 6:
The technological parameter of 6. embodiment of table, 3 Supersonic Plasma Spraying
Coating ceramic-Ni60 coating is cleaned several times until completely, then being wiped using alcohol spray coating using acetone
It wipes, obtains the coating ceramic-Ni60 coating that thickness is 285 μm.
Such as coating prepared by embodiment 1-3, there is good wear-resisting property and fatigue performance, work can be effectively improved
The service life of part has good uniformity, dispersibility, improves ceramic powder during the preparation process between each constituent element
The uniformity of interface binding power and ceramic powder and metal phase distribution.
Claims (9)
1. a kind of compound coating ceramic powders-Ni-based coating preparation method, which comprises the following steps:
Step 1, raw material are chosen and are uniformly mixed using planetary ball mill and obtain mixed powder (1), while pre-processing steel matrix
Material (5)；
Step 2, by step 1, treated that mixed powder (1) is placed in Supersonic Plasma Spraying equipment, uses argon gas and hydrogen
As the spray gas of plasma spraying equipment, hydrogen is remained unchanged as carrier gas, nitrogen as powder feeding gas, spray distance,
It is sprayed, obtains required coating ceramic-Ni60 coating.
2. a kind of compound coating ceramic powders-Ni-based coating preparation method according to claim 1, which is characterized in that step
Raw material described in rapid 1 mainly include three kinds, specially Ni60 powder (2), Co cladding WC ceramic powders (3) and NiCr cladding
Cr3C2Ceramic particle (4)；
The steel as matrix material (5) is specially No. 45 modulation steel.
3. a kind of compound coating ceramic powders-Ni-based coating preparation method according to claim 2, which is characterized in that institute
The particle diameter for stating Ni60 powder (2) is 15-45 μm, is specifically grouped as by the group of following mass fraction: Ni, 70-72%, Cr,
14.5-16%, B, 2.5-3.5%, Si, 3.5-4.0%, Fe, 6.5-7.0%, the sum of ratio of quality percent of the above component are
100%.
4. a kind of compound coating ceramic powders-Ni-based coating preparation method according to claim 2, which is characterized in that institute
The particle diameter for stating Co cladding WC ceramic powders (3) is 15-45 μm, specific composed of the following components: WC, 85-90%, Co, 10-
15%, the sum of ratio of quality percent of both the above component is 100%.
5. a kind of compound coating ceramic powders-Ni-based coating preparation method according to claim 2, which is characterized in that institute
State NiCr cladding Cr3C2The particle diameter of ceramic particle (4) is 15-45 μm, specific composed of the following components: Cr3C2、70-
80%, NiCr, 20-30%, the sum of ratio of quality percent of both the above component are 100%.
6. a kind of compound coating ceramic powders-Ni-based coating preparation method according to claim 1, it is further characterized in that,
Pretreatment in the step 1 specifically:
The steel as matrix material (5) using cleaning up using acetone, is then preheated to 100 DEG C, using Brown Alundum sandblasting first
Processing, sandblasting distance are 120mm, and sandblasting angle is 60-70 °.
7. a kind of compound coating ceramic powders-Ni-based coating preparation method according to claim 1, which is characterized in that step
The technique of spraying described in rapid 2 are as follows: injection electric current is 300-360A, injection electric 100-120V, argon flow 3.0-
3.6m3/ h, hydrogen flowing quantity 0.2-0.25m3/ h, spray distance 100-120mm, powder feed rate 30-35g/min, nitrogen
Throughput is 0.5-0.6m3/h。
8. a kind of compound coating ceramic powders-Ni-based coating preparation method according to claim 1, which is characterized in that institute
The intensity of coating ceramic-Ni60 coating is stated not less than HRC68, coefficient of friction 0.42-0.52.
9. a kind of compound coating ceramic powders-Ni-based coating preparation method according to claim 1, which is characterized in that step
Coating ceramic-Ni60 the coating in rapid 2 is also by acetone cleaning several times until clean, the subsequent spraying for using alcohol pair
Layer wiped clean.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115287580A (en) * | 2022-07-18 | 2022-11-04 | 中国人民解放军空军工程大学 | High-contact fatigue performance sealing coating for rotor engine inner cylinder and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431335A (en) * | 2003-01-17 | 2003-07-23 | 西安交通大学 | Method for preparing nickel based self fluxing alloy coat on substrate of copper or copper alloy |
| CN102534455A (en) * | 2011-12-28 | 2012-07-04 | 中国科学院宁波材料技术与工程研究所 | Composite gradient coating thermally sprayed on surface of screw rod of injecting and molding machine and a method for preparing same |
| CN102732877A (en) * | 2012-06-21 | 2012-10-17 | 西安热工研究院有限公司 | Preparation method of inner-wall wear resistant coating of small-bore pipeline and bend |
| CN104388887A (en) * | 2014-11-20 | 2015-03-04 | 西安交通大学 | Composite gradient coating on surface of heavy load gear and method for preparing composite gradient coating on surface of heavy load gear |
| CN104498864A (en) * | 2015-01-12 | 2015-04-08 | 南昌航空大学 | Repair and refabrication method of coal cutting pick |
| CN104789921A (en) * | 2015-04-30 | 2015-07-22 | 上海市机械制造工艺研究所有限公司 | Process for spraying composite coating on metal surface |
-
2019
- 2019-05-24 CN CN201910450482.3A patent/CN110172662A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431335A (en) * | 2003-01-17 | 2003-07-23 | 西安交通大学 | Method for preparing nickel based self fluxing alloy coat on substrate of copper or copper alloy |
| CN102534455A (en) * | 2011-12-28 | 2012-07-04 | 中国科学院宁波材料技术与工程研究所 | Composite gradient coating thermally sprayed on surface of screw rod of injecting and molding machine and a method for preparing same |
| CN102732877A (en) * | 2012-06-21 | 2012-10-17 | 西安热工研究院有限公司 | Preparation method of inner-wall wear resistant coating of small-bore pipeline and bend |
| CN104388887A (en) * | 2014-11-20 | 2015-03-04 | 西安交通大学 | Composite gradient coating on surface of heavy load gear and method for preparing composite gradient coating on surface of heavy load gear |
| CN104498864A (en) * | 2015-01-12 | 2015-04-08 | 南昌航空大学 | Repair and refabrication method of coal cutting pick |
| CN104789921A (en) * | 2015-04-30 | 2015-07-22 | 上海市机械制造工艺研究所有限公司 | Process for spraying composite coating on metal surface |
Non-Patent Citations (1)
| Title |
|---|
| 牛显明等: "WC/12Co颗粒增强Ni60A复合涂层的组织及耐磨性能", 《兰州理工大学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115287580A (en) * | 2022-07-18 | 2022-11-04 | 中国人民解放军空军工程大学 | High-contact fatigue performance sealing coating for rotor engine inner cylinder and preparation method thereof |
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