CN107365995A - A kind of diesel engine spiracle plating process - Google Patents
A kind of diesel engine spiracle plating process Download PDFInfo
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- CN107365995A CN107365995A CN201710641061.XA CN201710641061A CN107365995A CN 107365995 A CN107365995 A CN 107365995A CN 201710641061 A CN201710641061 A CN 201710641061A CN 107365995 A CN107365995 A CN 107365995A
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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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a kind of diesel engine spiracle plating process, including Pre-treatment before plating and plasma cladding to be handled, and detailed process is as follows：Need coating position to be placed in activating solution diesel engine spiracle to soak, clean, dry；Mixed-powder is coated uniformly on the diesel engine spiracle surface for needing coating through Pre-treatment before plating, plasma cladding processing is carried out, cooling, obtains material A, be then heat-treated.A kind of diesel engine spiracle plating process proposed by the present invention, by optimize technique, coating material is tightly combined with matrix, is evenly distributed, and effectively increases the high temperature resistant, corrosion resistance and fatigue resistance of diesel engine spiracle, effectively extends the service life of diesel engine spiracle.
Description
Technical field
The present invention relates to coating technology field, more particularly to a kind of diesel engine spiracle plating process.
Background technology
Valve can be divided into inlet valve and exhaust valve from engine structure, the effect of inlet valve is to draw air into start
In machine, with fuel mixed combustion, the effect of exhaust valve is that the waste gas after burning is discharged and radiated.Existing diesel engine
Valve is made of metal or alloy material more, needs to bear higher mechanical load and thermic load at work, while also
The static load that impact load and gaseous-pressure are given of taking a seat is born, causes valve wear and seriously corroded, influences its valve
Service life.Coating, which refers to be attached on a certain matrix material, plays certain special role, and has certain combine with matrix material
The layer material of intensity, it can overcome certain defect of matrix material, improve its surface characteristic.At present, diesel engine spiracle
Plating process need to be improved, and the valve after coating have impact on the service life of valve in high temperature resistant and corrosion-resistant.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of diesel engine spiracle plating process, by excellent
Chemical industry skill, coating material are tightly combined with matrix, are evenly distributed, and effectively increase high temperature resistant, the corrosion resistance of diesel engine spiracle
And fatigue resistance, effectively extend the service life of diesel engine spiracle.
A kind of diesel engine spiracle plating process proposed by the present invention, including Pre-treatment before plating and plasma cladding processing.
Preferably, Pre-treatment before plating detailed process is as follows：Need coating position to be placed in activating solution diesel engine spiracle to soak
Bubble, clean, dry.
Preferably, activating solution is by one or both of sulfuric acid, acetic acid, citric acid composition described above.
Preferably, plasma cladding processing detailed process is as follows：Mixed-powder is coated uniformly on through Pre-treatment before plating
The diesel engine spiracle surface of coating is needed, plasma cladding processing is carried out, cooling, obtains material A, be then heat-treated.
Preferably, plasma cladding technological parameter is specific as follows：Ionized gas flow is 2-4L/min, and protective gas is argon
Gas and argon flow amount are 5-8L/min, and transfer arc voltage is 36-40V, transfer current 80-100A, are sprayed away from for 1.5-3cm, work(
Rate is 2-2.5KW, and sweep speed 5-8mm/s, plasma arc spot diameter is 1.2-2.2mm, and plasma melting coating thickness is
0.5-0.8mm。
Preferably, Technology for Heating Processing is as follows：Material A is warming up to 240-280 DEG C through 15-20min, is incubated 1-2h, then
320-350 DEG C is warming up to through 6-10min, 3-4h is incubated, is then air-cooled to room temperature.
Preferably, mixed-powder is by weight 100-120 by alloy powder and ceramic powders:1.5-3 is formed, and is mixed
The granularity of powder is 180-220 mesh.
Preferably, alloy powder includes following components by mass fraction：Cr：20-25%, C：0.5-0.7%, B：0.2-
0.5%th, Si：0.8-1%, Mn：0.8-1.2%, Cu：0.5-0.8%, Ni：1.5-3%, W：0.2-0.5%, V：0.3-
0.8%th, Nb：0.1-0.3%, Sr：0.1-0.16%, La：0.2-0.5%, Ce：0.65-1%, Nd：0.5-0.8%, Y：0.1-
0.3%, surplus is Fe and inevitable impurity.
In specific embodiment, Cr mass fraction can also be 21%, 21.5%, 22%, 22.5%, 23%, 23.5%,
24%, C mass fraction can also be 0.54%, 0.58%, 0.6%, 0.62%, 0.65%, 0.68%, B mass fraction
Can also be 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, Si mass fraction can also be 0.82%, 0.85%,
0.9%th, 0.92%, 0.95%, 0.98%, Mn mass fraction can also be 0.85%, 0.9%, 0.95%, 0.1%,
0.11%, Cu mass fraction can also may be used also for 0.55%, 0.6%, 0.65%, 0.7%, 0.75%, Ni mass fraction
Think 1.8%, 2%, 2.2%, 2.4%, 2.6%, 2.8%, W mass fraction can also be 0.25%, 0.3%, 0.35%,
0.4%th, 0.45%, V mass fraction can also be 0.4%, 0.5%, 0.55%, 0.6%, 0.7%, Nb mass fraction also
Can be 0.14%, 0.18%, 0.2%, 0.22%, 0.25%, 0.28%, Sr mass fraction can also be 0.11%,
0.12%th, 0.13%, 0.14%, 0.15%, La mass fraction can also be 0.25%, 0.3%, 0.35%, 0.4%,
0.45%, Ce mass fraction can also be 0.7%, 0.75%, 0.8%, 0.85%, 0.9%, Nd mass fraction can be with
For 0.55%, 0.6%, 0.65%, 0.7%, 0.75%, Y mass fraction can also be 0.14%, 0.16%, 0.2%,
0.22%th, 0.25%, 0.28%, surplus is Fe and inevitable impurity.
Preferably, ceramic powders are by SiC, TiC and B2O3It is by weight 2-4:1-2:1-1.5 composition.
By optimizing Pre-treatment before plating technique in the present invention, reasonable selection activating solution immersion diesel engine spiracle, effectively remove
Diesel engine spiracle needs the metal oxide film at coating position, it is exposed fresh metallographic structure, forms one layer of activating surface, polishing
Being advantageous to raising valve needs the roughness at coating position, effectively improves plasma cladding effect；By optimizing plasma cladding
Handling process, coordinated from alloy powder with ceramic powders during plasma cladding and be used as coating material, it is logical in alloy powder
Control Cr, Si, Ni, Mn, Cu content is crossed, is that valve after coating has good corrosion resistance, heat-resisting quantity, hardness, strong
Degree is laid a good foundation with wearability, and V, Nb, B, Sr coordinate, and is made the dense internal organization of coating, crystallization of refinement, is avoided intergranular rotten
Erosion, further improve coating overall performance, and by increasing the content of rare element La, Ce, Nd, Y in alloy powder, effectively carry
Nucleation rate in high coating, effectively refine and improve the size of hardening constituent and distribution in coating, improve the globality of coating
Energy；SiC, TiC and B in ceramic powders2O3Coordinate, dispersion-strengthened effect is played in coating, further improve the resistance to height of coating
Temperature, corrosion resistance and anti-fatigue performance；Again by optimizing Technology for Heating Processing, further improve the institutional framework of coating, it is effectively thin
Change diesel engine spiracle coating interior tissue, reduce the porosity, the bond strength of coating and valve matrix material is big, effectively improves bavin
The performance such as hardness, intensity, impact resistance and the high temperature resistant of oil machine valve, corrosion-resistant.A kind of diesel engine spiracle proposed by the present invention
Plating process, by optimize technique, coating material is tightly combined with matrix, is evenly distributed, and effectively increases diesel engine spiracle
High temperature resistant, corrosion resistance and fatigue resistance, effectively extend the service life of diesel engine spiracle.
It is found through experiments that, the decay resistance and fatigue resistance of the diesel engine spiracle obtained using plating process of the present invention
5-7% and 4-5% are improved respectively, and its service life adds 3-4 times compared with before.
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of diesel engine spiracle plating process proposed by the present invention, including Pre-treatment before plating and plasma cladding processing.
Embodiment 2
A kind of diesel engine spiracle plating process proposed by the present invention, is comprised the following steps that：
S1, Pre-treatment before plating：Need coating position to be placed in activating solution diesel engine spiracle to soak, clean, dry；Its
In, activating solution is sulfuric acid；
S2, plasma cladding processing：Mixed-powder is coated uniformly on to the diesel engine for needing coating through Pre-treatment before plating
Valve surfaces, plasma cladding processing is carried out, cooling, obtains material A, it is subsequently heat-treated.
Wherein, plasma cladding technological parameter is specific as follows：Ionized gas flow is 3L/min, protective gas be argon gas and
Argon flow amount is 6.5L/min, and transfer arc voltage is 38V, transfer current 90A, is sprayed away from for 2.2cm, power 2.2KW, scanning
Speed is 6.5mm/s, and plasma arc spot diameter is 1.8mm, and plasma melting coating thickness is 0.5-0.8mm；
Mixed-powder is 110 by weight by alloy powder and ceramic powders:2.2 compositions, and the granularity of mixed-powder is
200 mesh；
Alloy powder includes following components by mass fraction：Cr：22.5%th, C：0.6%th, B：0.35%th, Si：0.9%th,
Mn：1%th, Cu：0.65%th, Ni：2.2%th, W：0.35%th, V：0.5%th, Nb：0.2%th, Sr：0.12%th, La：0.35%th, Ce：
0.8%th, Nd：0.65%th, Y：0.2%, surplus is Fe and inevitable impurity；
Ceramic powders are by SiC, TiC and B2O3It is 3 by weight:1.5:1.2 composition.
Embodiment 3
A kind of diesel engine spiracle plating process proposed by the present invention, is comprised the following steps that：
S1, Pre-treatment before plating：Need coating position to be placed in activating solution diesel engine spiracle to soak, clean, dry；Its
In, activating solution is 1 by volume by sulfuric acid, acetic acid:1 composition；
S2, plasma cladding processing：Mixed-powder is coated uniformly on to the diesel engine for needing coating through Pre-treatment before plating
Valve surfaces, plasma cladding processing is carried out, cooling, obtains material A, material A is then warming up to 260 DEG C through 18min, insulation
1.5h, 335 DEG C then are warming up to through 8min, are incubated 3.4h, are then air-cooled to room temperature.
Wherein, plasma cladding technological parameter is specific as follows：Ionized gas flow is 2L/min, protective gas be argon gas and
Argon flow amount is 5L/min, and transfer arc voltage is 36V, transfer current 80A, is sprayed away from for 1.5cm, power 2KW, sweep speed
For 5mm/s, plasma arc spot diameter is 1.2mm, and plasma melting coating thickness is 0.5mm；
Mixed-powder is 100 by weight by alloy powder and ceramic powders:1.5 compositions, and the granularity of mixed-powder is
180 mesh；
Alloy powder includes following components by mass fraction：Cr：20%th, C：0.5%th, B：0.2%th, Si：0.8%th, Mn：
0.8%th, Cu：0.8%th, Ni：1.5、W：0.2%th, V：0.8%th, Nb：0.1%th, Sr：0.1%th, La：0.5%th, Ce：0.65%th,
Nd：0.5%th, Y：0.3%, surplus is Fe and inevitable impurity；
Ceramic powders are by SiC, TiC and B2O3It is 2 by weight:1:1 composition.
Embodiment 4
A kind of diesel engine spiracle plating process proposed by the present invention, is comprised the following steps that：
S1, Pre-treatment before plating：Need coating position to be placed in activating solution diesel engine spiracle to soak, clean, dry；Its
In, activating solution is 1 by volume by sulfuric acid, acetic acid, citric acid:1:1:Composition；
S2, plasma cladding processing：Mixed-powder is coated uniformly on to the diesel engine for needing coating through Pre-treatment before plating
Valve surfaces, plasma cladding processing is carried out, cooling, obtains material A, material A is then warming up to 240 DEG C through 15min, insulation
2h, 320 DEG C then are warming up to through 6min, are incubated 4h, are then air-cooled to room temperature.
Wherein, plasma cladding technological parameter is specific as follows：Ionized gas flow is 4L/min, protective gas be argon gas and
Argon flow amount is 8L/min, and transfer arc voltage is 40V, transfer current 100A, is sprayed away from for 3cm, power 2.5KW, scanning speed
It is 2.2mm to spend for 8mm/s, plasma arc spot diameter, and plasma melting coating thickness is 0.8mm；
Mixed-powder is 120 by weight by alloy powder and ceramic powders:3 compositions, and the granularity of mixed-powder is 220
Mesh；
Alloy powder includes following components by mass fraction：Cr：25%th, C：0.7%th, B：0.2%th, Si：1%th, Mn：
1.2%th, Cu：0.5%th, Ni：3%th, W：0.5%th, V：0.8%th, Nb：0.3%th, Sr：0.16%th, La：0.2%th, Ce：1%th, Nd：
0.8%th, Y：0.1%, surplus is Fe and inevitable impurity；
Ceramic powders are by SiC, TiC and B2O3It is 4 by weight:2:1.5 composition.
Embodiment 5
A kind of diesel engine spiracle plating process proposed by the present invention, is comprised the following steps that：
S1, Pre-treatment before plating：Need coating position to be placed in activating solution diesel engine spiracle to soak, clean, dry；Its
In, activating solution is 1 by volume by acetic acid, citric acid:1 composition；
S2, plasma cladding processing：Mixed-powder is coated uniformly on to the diesel engine for needing coating through Pre-treatment before plating
Valve surfaces, plasma cladding processing is carried out, cooling, obtains material A, material A is then warming up to 250 DEG C through 16min, insulation
1.8h, 330 DEG C then are warming up to through 7min, are incubated 3.8h, are then air-cooled to room temperature.
Wherein, plasma cladding technological parameter is specific as follows：Ionized gas flow is 2.4L/min, and protective gas is argon gas
And argon flow amount is 6L/min, transfer arc voltage is 38V, transfer current 85A, is sprayed away from for 2cm, power 2.2KW, scanning speed
It is 1.5mm to spend for 6.5mm/s, plasma arc spot diameter, and plasma melting coating thickness is 0.6mm；
Mixed-powder is 120 by weight by alloy powder and ceramic powders:1.5 compositions, and the granularity of mixed-powder is
210 mesh；
Alloy powder includes following components by mass fraction：Cr：22.5%th, C：0.65%th, B：0.25%th, Si：0.9%th,
Mn：0.85%th, Cu：0.65%th, Ni：1.8%th, W：0.25%th, V：0.4%th, Nb：0.15%th, Sr：0.12%th, La：0.25%th,
Ce：0.7%th, Nd：0.65%th, Y：0.15%, surplus is Fe and inevitable impurity；
Ceramic powders are by SiC, TiC and B2O3It is 4 by weight:1:1 composition.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (9)
1. a kind of diesel engine spiracle plating process, it is characterised in that handled including Pre-treatment before plating and plasma cladding.
2. diesel engine spiracle plating process according to claim 1, it is characterised in that Pre-treatment before plating detailed process is as follows：
Need coating position to be placed in activating solution diesel engine spiracle to soak, clean, dry.
3. diesel engine spiracle plating process according to claim 2, it is characterised in that activating solution is by sulfuric acid, acetic acid, citric acid
One or both of composition described above.
4. diesel engine spiracle plating process according to claim 1, it is characterised in that plasma cladding processing detailed process is such as
Under：Mixed-powder is coated uniformly on the diesel engine spiracle surface for needing coating through Pre-treatment before plating, carries out plasma cladding
Processing, cooling, obtains material A, is then heat-treated.
5. diesel engine spiracle plating process according to claim 4, it is characterised in that plasma cladding technological parameter is specific such as
Under：Ionized gas flow is 2-4L/min, and protective gas is argon gas and argon flow amount is 5-8L/min, and transfer arc voltage is 36-
40V, transfer current 80-100A, spray away from for 1.5-3cm, power 2-2.5KW, sweep speed 5-8mm/s, plasma arc
Spot diameter is 1.2-2.2mm, and plasma melting coating thickness is 0.5-0.8mm.
6. diesel engine spiracle plating process according to claim 4, it is characterised in that Technology for Heating Processing is as follows：Material A is passed through
15-20min is warming up to 240-280 DEG C, is incubated 1-2h, is then warming up to 320-350 DEG C through 6-10min, is incubated 3-4h, Ran Houkong
It is cooled to room temperature.
7. diesel engine spiracle plating process according to claim 4, it is characterised in that mixed-powder is by alloy powder and ceramics
Powder is by weight 100-120:1.5-3 is formed, and the granularity of mixed-powder is 180-220 mesh.
8. diesel engine spiracle plating process according to claim 7, it is characterised in that alloy powder by mass fraction include with
Lower component：Cr：20-25%, C：0.5-0.7%, B：0.2-0.5%, Si：0.8-1%, Mn：0.8-1.2%, Cu：0.5-
0.8%th, Ni：1.5-3%, W：0.2-0.5%, V：0.3-0.8%, Nb：0.1-0.3%, Sr：0.1-0.16%, La：0.2-
0.5%th, Ce：0.65-1%, Nd：0.5-0.8%, Y：0.1-0.3%, surplus are Fe and inevitable impurity.
9. diesel engine spiracle plating process according to claim 7, it is characterised in that ceramic powders are by SiC, TiC and B2O3Press
Weight ratio is 2-4:1-2:1-1.5 composition.
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| CN201710641061.XA CN107365995A (en) | 2017-07-31 | 2017-07-31 | A kind of diesel engine spiracle plating process |
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| CN201710641061.XA CN107365995A (en) | 2017-07-31 | 2017-07-31 | A kind of diesel engine spiracle plating process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838807A (en) * | 2010-04-19 | 2010-09-22 | 浙江吉利汽车研究院有限公司 | Laser cladding coating material for inlet valve and exhaust valve of engine and coating thereof |
| CN102218857A (en) * | 2011-05-27 | 2011-10-19 | 合肥金四达科技有限公司 | Composite material coated with SiC-Fe based alloy layer and preparation method of composite material |
| CN102392241A (en) * | 2011-11-10 | 2012-03-28 | 湖北汽车工业学院 | Method for preparing Fe-based WC-Ni gradient coating by using plasma cladding method |
-
2017
- 2017-07-31 CN CN201710641061.XA patent/CN107365995A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838807A (en) * | 2010-04-19 | 2010-09-22 | 浙江吉利汽车研究院有限公司 | Laser cladding coating material for inlet valve and exhaust valve of engine and coating thereof |
| CN102218857A (en) * | 2011-05-27 | 2011-10-19 | 合肥金四达科技有限公司 | Composite material coated with SiC-Fe based alloy layer and preparation method of composite material |
| CN102392241A (en) * | 2011-11-10 | 2012-03-28 | 湖北汽车工业学院 | Method for preparing Fe-based WC-Ni gradient coating by using plasma cladding method |
Non-Patent Citations (1)
| Title |
|---|
| 胡永俊 等: "热处理对等离子熔覆层析出物与残余应力的影响", 《热加工工艺》 * |
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Application publication date: 20171121 |