CN108018548A - One kind repairs tungsten base powder alloy die casting coating alloy and preparation method thereof - Google Patents
One kind repairs tungsten base powder alloy die casting coating alloy and preparation method thereof Download PDFInfo
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- CN108018548A CN108018548A CN201711273496.XA CN201711273496A CN108018548A CN 108018548 A CN108018548 A CN 108018548A CN 201711273496 A CN201711273496 A CN 201711273496A CN 108018548 A CN108018548 A CN 108018548A
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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
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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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
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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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
- C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/027—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal matrix material comprising a mixture of at least two metals or metal phases or metal matrix composites, e.g. metal matrix with embedded inorganic hard particles, CERMET, MMC.
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Abstract
The invention discloses one kind to repair tungsten base powder alloy die casting coating alloy and preparation method thereof, and the purpose is to mould concentrated wear surface is repaired so that the size and function of mould are able to recover with re-using and lifting the performance of die surface.The core technology of the present invention is superimposed by a variety of sufacings, forms the multi-layer composite coatings alloy with different functionalities, and the coating alloy is cobalt, chromium, tungsten, iron and diamondite, by mass percentage (Wt/%)：Cobalt (Co)：45 50, chromium (Cr)：30 40%, tungsten (W)：24, tungsten carbide (WC)：24, iron (Fe)：Surplus.
Description
Technical field
The present invention relates to one kind to repair tungsten base powder alloy die casting coating alloy and preparation method thereof, close using high energy
The laser beam heats melt painting alloy of degree and quickly solidification form metallurgical binding with matrix, in tungsten base powder alloy die casting
Wear out failure surface forms wear-resistant coating, belongs to Materials Science and Engineering field.
Background technology
Tungsten base powder alloy is a kind of using tungsten as hard phase, is the composite wood that Binder Phase is formed with nickel, copper or nickel, iron etc.
Material, has high heat conduction, high intensity, high density, the property such as low thermal coefficient of expansion and excellent corrosion stability, inoxidizability and toughness
Can, it is one of optimal material for manufacturing high-precision mold and die casting.Tungsten base powder alloy die casting is in forming part pressure
Cast in production process, the non-ferrous metal liquid of melting enters mold cavity with high pressure, High Temperature And Velocity, mold cavity surface is produced violent
Impact and wash away, cause tungsten base powder alloy die casting mold cavity surface to produce corrosion, wear and crackle；In filling process
In, molten metal, impurity and slag can also produce mold cavity surface the chemical action of complexity, accelerate the corruption on mold cavity surface
Erosion, abrasion and the generation of crackle.Pertinent literature both domestic and external thinks that thermal wear is the master of tungsten base powder alloy die casting failure
Want one of reason.The abrasion of tungsten base powder alloy die casting mold cavity surface is excessive will to cause the compressing part of liquid non-ferrous metal
Dimension overproof and surface quality it is unqualified.Tungsten base powder alloy die casting manufactures costly, this is because tungsten based powders
Alloy material is expensive, and mould processing and manufacture difficulty are big, and the mould R and M expense after putting into production is also high, because
This, on-call maintenance mould, prevents mould from further damaging, and can substantially reduce the die cost of Die Casting.It is rational to solve
Method is exactly that mould local damage surface is repaired by surface engineering technology so that the size and function of mould are able to extensive
Multiple and re-using simultaneously lifts the performance of die surface.At present, the common surface engineering technology of engineering material has physical vapor to sink
Product (PVD), chemical vapor deposition (CVD), thermal spraying, built-up welding and a variety of increases material manufacturing technologies and alloy system developed in recent years
System etc..Tungsten base powder alloy is due to its special physical and chemical performance, and thermal conductivity is extremely strong, and linear expansion coefficient is small；The fusing point of tungsten is high,
Alloy is not formed with most metals, even if formation alloy is also mostly intermetallic compound, the common Surface Engineering of engineering material
Technology is used to repairing the abrading section of tungsten base powder alloy die casting working surface of mould cavity, existing main problem be repair layer and
The chemical composition and performance of basis material are there are larger difference, and the mutual compatibility of material and associativity are poor, after reparation
For tungsten base powder alloy die casting during castings production, mold cavity surface repair layer is subject to high pressure, high temperature and the height of molten metal
Speed is washed away, and concurrently there are liberated heat in absorption molten metal process of setting, and mold cavity surface repair layer reaches higher first
Temperature and expand；After die sinking, mold cavity surface repair layer shrinks with air contact Quench and produces tension, and this alternate stress is anti-
Multiple circulation, easily cracks at repair layer and basis material interface cohesion, with the increase of production number, ultimately results in and repaiies
Cladding cracks and flakes off.Therefore, the wearability of tungsten base powder alloy die casting repair layer and antifatigue how is improved at the same time
Property and its bond strength with matrix, extend the service life of mould, improve mould utilization factor, be that researcher is bounden
Responsibility and long-term and difficult task.
The content of the invention
The object of the present invention is to provide one kind to repair tungsten base powder alloy die casting coating alloy and preparation method thereof, right
The laser beam heats melt painting alloy of the abrading section application high-energy-density of tungsten base powder alloy die casting working surface of mould cavity
And quickly solidification forms metallurgical binding with matrix, wear-resistant coating is formed in tungsten base powder alloy die casting wear surface so that
The size and function of mold cavity are able to recover and re-use.
A kind of reparation tungsten base powder alloy die casting coating alloy of the present invention and preparation method thereof, its core skill
Art is：Consider coating alloy and the case hardness of tungsten base powder alloy physical chemistry compatibility and coating alloy, wear-resisting
Property and high-temperature behavior, be superimposed by a variety of sufacings, formed with different functionalities multi-layer composite coatings alloy.
What the above-mentioned purpose of the present invention was realized in：
One kind repairs tungsten base powder alloy die casting coating alloy, and first layer is iron-based Langaloy, its component presses matter
Measure percentage Wt/% meters：Nickel：32-36, iron Fe：64-68, sulphur S, phosphorus P and carbon C Yuan Su≤0.5；The second layer is wear-resistant coating
Alloy, wear-resistant coating alloying component is determined by Orthogonal Optimization Test, and Wt/% is counted its component by mass percentage：Cobalt Co：45-
50, chromium Cr：30-40, tungsten W：2-4, tungsten carbide wc：2-4, iron Fe：Surplus.
A kind of preparation method of reparation tungsten base powder alloy die casting coating alloy, is folded by a variety of surfaces
Add, form the multi-layer composite coatings alloy with different functionalities, including step in detail below：
The first step, carries out mechanical treatment to the abrading section of tungsten base powder alloy die casting working surface of mould cavity, removes table
Face oxide and various dirts；
Second step, using electric spark deposition, deposits in the abrading section of tungsten base powder alloy die casting working surface of mould cavity
One layer of iron-based Langaloy；
3rd step, the iron-based deposited using the laser beam of high-energy-density in tungsten base powder alloy die casting working surface of mould cavity
One layer of wear-resistant coating alloy of Langaloy surface deposited metal.
In second step, electric spark deposition iron-based Langaloy layer thickness is：50~80 μm.
In 3rd step, the wear-resistant coating alloy material powder particle size is 40-80 μm.
In 3rd step, the laser beam deposition step for using high-energy-density for：
Using 1.0KW pulses Nd：YAG solid state lasers progress laser cladding, pulsewidth 6.0ms, spot diameter 2.0mm, from
Burnt position 10mm；Deposition rate 3mm/s, deposition coating alloy powder are sent into laser cladding molten bath by lateral automatic powder feeding system, swash
Vacuum drying processing is carried out to powder before light deposition, to remove the moisture of powder adsorption, powder sending quantity 3.0g/min；Using argon
Gas shielded laser cladding molten bath, protection air-flow amount 10L/min.
A kind of reparation tungsten base powder alloy die casting coating alloy of the present invention and preparation method thereof, is adopted first
With electric spark deposition technology one layer of nickelic conjunction of iron-based is deposited in the abrading section of tungsten base powder alloy die casting working surface of mould cavity
Gold.Electric spark deposition technology can be within the extremely short time by iron-based Langaloy and the temperature wink of tungsten base powder alloy contact position
Between reach 8000 DEG C -25000 DEG C, and then iron-based Langaloy deposition to tungsten base powder alloy surface is formed into intermediate layer.Iron-based
The intensity of Langaloy and it is moulding preferably, it is close with the linear expansion coefficient of tungsten base powder alloy, while material is mutual therebetween
Between compatibility and associativity it is preferable, deposition one layer of iron-based Langaloy can improve post laser deposition wear-resistant coating alloy with
Tungsten base powder alloy bond strength and anti-fatigue performance.The high temperature heat wear resistance poor performance of iron-based Langaloy, tungsten based powders are closed
The abrading section deposition iron-based Langaloy of golden die casting working surface of mould cavity cannot be directly as working lining.It is of the present invention
One kind repairs tungsten base powder alloy die casting coating alloy and preparation method thereof, using the laser beam of high-energy-density in tungsten original washing powder
The iron-based Langaloy surface of last alloy die cast mould working surface of mould cavity abrading section deposition one layer of wear-resistant coating alloy of deposition again.
Wear-resistant coating alloy of the present invention is cobalt, chromium, tungsten, iron and diamondite, cobalt-chromium-tungsten alloy have good thermal fatigue resistance,
Corrosion and heat resistant, wear-corrosion resistance and weldability, preferable weldability for repair again in the future the material used provide it is good
Compatibility and compatibility；The each element and tungsten base powder alloy of iron and alloy system all have preferable compatibility；Add carbon
Change the wearability that tungsten hard alloy can further improve coating alloy, adding the amount of tungsten carbide needs to control within the specific limits,
The purpose is to ensure deposition coating alloy and tungsten base powder alloy equivalent life.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of reparation tungsten base powder alloy die casting coating alloy of the present invention and preparation method thereof, by a variety of
Sufacing is superimposed, and one layer and tungsten base powder alloy compatibility and the preferable iron-based of associativity are deposited using electric spark deposition technology
Langaloy, recycles the laser beam of high-energy-density to solve at the same time in one layer of wear-resistant coating alloy of iron-based Langaloy surface deposited metal
Determine the wearability and fatigue resistance and its bond strength with matrix of repair layer.
Brief description of the drawings
Fig. 1 iron-based Langaloy surface deposited metal wear-resistant coating alloys
Embodiment
The embodiment being given by the following further is specifically described the method for the present invention.
A kind of reparation tungsten base powder alloy die casting coating alloy of the present invention and preparation method thereof, is by more
The superposition of kind of sufacing, first using electric spark deposition technology tungsten base powder alloy die casting working surface of mould cavity wear
Position one layer of iron-based Langaloy of deposition, then recycles the laser beam of high-energy-density resistance in one layer of iron-based Langaloy surface deposited metal
Grind coating alloy.Wear-resistant coating alloying component, by mass percentage (Wt/%)：Cobalt (Co)：45-50, chromium (Cr)：30-
40%, tungsten (W)：2-4, tungsten carbide (WC)：2-4, iron (Fe)：Surplus.
A kind of reparation tungsten base powder alloy die casting coating alloy of the present invention and preparation method thereof, including it is following
Processing step：
The first step, carries out mechanical treatment to the abrading section of tungsten base powder alloy die casting working surface of mould cavity, removes table
Face oxide and various dirts.
Second step, using electric spark deposition technology in the wear out failure portion of tungsten base powder alloy die casting working surface of mould cavity
Position one layer of iron-based Langaloy of deposition, iron-based Langaloy component is by mass percentage (Wt/%)：Nickel (Ni)：32-36, iron
(Fe)：Yuan Su≤0.5 such as 64-68, sulphur (S), phosphorus (P) and carbon (C).Iron-based Langaloy of the present invention also can use it is commercially available into
Divide the alloy system with similar nature.
3rd step, the iron-based deposited using the laser beam of high-energy-density in tungsten base powder alloy die casting working surface of mould cavity
One layer of wear-resistant coating alloy of deposition again on Langaloy surface.Coating alloy of the present invention is cobalt, chromium, tungsten, iron and carbonization
Tungsten alloy, coating alloy material powder granular size are 40-80 μm, by mass percentage (Wt/%)：Cobalt (Co)：45-50,
Chromium (Cr)：30-40%, tungsten (W)：2-4, tungsten carbide (WC)：2-4, iron (Fe)：Surplus.Using 1.0KW pulses Nd：YAG solids swash
Light device carries out laser cladding, pulsewidth 6.0ms, spot diameter 2.0mm, defocus position 10mm；Deposition rate 3mm/s, deposition alloy
Powder is sent into laser cladding molten bath by lateral automatic powder feeding system, vacuum drying processing is carried out to powder before laser cladding, to remove
The moisture of powder adsorption, powder sending quantity 3.0g/min；Using argon gas protection laser cladding molten bath, protection air-flow amount 10L/min.
A kind of reparation tungsten base powder alloy die casting coating alloy of the present invention and preparation method thereof, it is following all
What embodiment was obtained using above-mentioned iron-based Langaloy, coating alloy component and processing step and parameter, tungsten based powders are closed
Golden component is by mass percentage (Wt/%)：W：97, Ni：2.1, Fe：0.9.Embodiment see the table below 1.
A kind of reparation tungsten base powder alloy die casting coating alloy described in invention and preparation method thereof, is pressed
The technical indicator reached according to above-mentioned processing step and component progress tungsten base powder alloy die casting reparation：
(1) coating alloy and tungsten base powder alloy substrate combinating strength 120-150MPa after repairing；
(2) the coating alloy wearability after repairing is 1.1-1.3 times of tungsten base powder alloy basis material wearability.
1 coating alloy material composition of table and its coating performance
Claims (5)
1. one kind repairs tungsten base powder alloy die casting coating alloy, it is characterised in that first layer is iron-based Langaloy, its
Wt/% is counted component by mass percentage：Nickel：32-36, iron Fe：64-68, sulphur S, phosphorus P and carbon C Yuan Su≤0.5；The second layer is
Wear-resistant coating alloy, Wt/% is counted its component by mass percentage：Cobalt Co：45-50, chromium Cr：30-40, tungsten W：2-4, tungsten carbide
WC：2-4, iron Fe：Surplus.
A kind of 2. preparation method for repairing tungsten base powder alloy die casting coating alloy as claimed in claim 1, by more
The superposition of kind surface, forms the multi-layer composite coatings alloy with different functionalities, including step in detail below：
The first step, carries out mechanical treatment to the abrading section of tungsten base powder alloy die casting working surface of mould cavity, removes Surface Oxygen
Compound and various dirts；
Second step, using electric spark deposition, one layer is deposited in the abrading section of tungsten base powder alloy die casting working surface of mould cavity
Iron-based Langaloy；
3rd step, it is nickelic in the iron-based that tungsten base powder alloy die casting working surface of mould cavity deposits using the laser beam of high-energy-density
One layer of wear-resistant coating alloy of alloy surface deposition.
3. a kind of reparation tungsten base powder alloy die casting coating alloy preparation method as claimed in claim 2, its feature exist
In second, electric spark deposition iron-based Langaloy layer thickness is：50~80um.
4. a kind of preparation method for repairing tungsten base powder alloy die casting coating alloy as claimed in claim 2, its feature
It is, the 3rd step, the wear-resistant coating alloy material powder particle size is 40-80 μm.
5. a kind of preparation method for repairing tungsten base powder alloy die casting coating alloy as claimed in claim 2, its feature
Be, used described in the 3rd step the laser beam deposition step of high-energy-density for：
Using 1.0KW pulses Nd：YAG solid state lasers carry out laser cladding, pulsewidth 6.0ms, spot diameter 2.0mm, defocus position
Put 10mm；Deposition rate 3mm/s, deposition coating alloy powder are sent into laser cladding molten bath by lateral automatic powder feeding system, and laser melts
Vacuum drying processing is carried out to powder before applying, to remove the moisture of powder adsorption, powder sending quantity 3.0g/min；Protected using argon gas
Protect laser cladding molten bath, protection air-flow amount 10L/min.
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| CN201711273496.XA CN108018548B (en) | 2017-12-06 | 2017-12-06 | Coating alloy for repairing tungsten-based powder alloy die-casting die and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352108A (en) * | 2018-11-14 | 2019-02-19 | 吉林大学 | Repair the tungsten base powder alloy casting mould coating and technique of production aluminium alloy engine cylinder cap |
| CN113445046A (en) * | 2021-06-30 | 2021-09-28 | 重庆工港致慧增材制造技术研究院有限公司 | Tungsten alloy and method for laser cladding of tungsten alloy on surface of mold sprue cup |
| CN114457272A (en) * | 2022-02-11 | 2022-05-10 | 吉林大学 | High-entropy alloy and method for repairing tungsten-based powder alloy die-casting die by laser cladding |
| CN114769622A (en) * | 2022-05-05 | 2022-07-22 | 南昌航空大学 | Laser additive manufacturing method for network-shaped metal ceramic hard alloy |
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|---|---|---|---|---|
| CN109352108A (en) * | 2018-11-14 | 2019-02-19 | 吉林大学 | Repair the tungsten base powder alloy casting mould coating and technique of production aluminium alloy engine cylinder cap |
| CN113445046A (en) * | 2021-06-30 | 2021-09-28 | 重庆工港致慧增材制造技术研究院有限公司 | Tungsten alloy and method for laser cladding of tungsten alloy on surface of mold sprue cup |
| CN114457272A (en) * | 2022-02-11 | 2022-05-10 | 吉林大学 | High-entropy alloy and method for repairing tungsten-based powder alloy die-casting die by laser cladding |
| CN114769622A (en) * | 2022-05-05 | 2022-07-22 | 南昌航空大学 | Laser additive manufacturing method for network-shaped metal ceramic hard alloy |
| CN114769622B (en) * | 2022-05-05 | 2023-04-25 | 南昌航空大学 | Preparation method for network-shaped metal ceramic hard alloy laser additive manufacturing |
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| CN108018548B (en) | 2019-12-27 |
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