CN108103500A - A kind of stretching prestressing force cermet die casting and preparation method thereof - Google Patents
A kind of stretching prestressing force cermet die casting and preparation method thereof Download PDFInfo
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- CN108103500A CN108103500A CN201711409106.7A CN201711409106A CN108103500A CN 108103500 A CN108103500 A CN 108103500A CN 201711409106 A CN201711409106 A CN 201711409106A CN 108103500 A CN108103500 A CN 108103500A
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- Prior art keywords
- cermet
- prestressing force
- coating
- die
- silicide
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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
Abstract
The invention discloses a kind of stretching prestressing force cermet die castings and preparation method thereof, belong to coat preparing technology field.Including die matrix prestressed cermet coating is stretched with having for its surface is arranged on；Be adapted to by the heat of die matrix and prepared cermet interlayer so that cermet coating is completed into rear preparing, and ceramic layer has stretching prestressing force, is metallurgical binding or mechanical bond between cermet coating and die matrix.The stretching prestressing force cermet is prepared to comprise the following steps：A removes die matrix oxide-film, carries out oil removing cleaning.B selects spraying process, vapour deposition process, composite deposite method, and a kind of prepared in self-propagating high-temperature synthetic method or high-temperature melting method stretches prestressing force metal-cermic coating.By the obtained coating of manufacturing technology of the present invention efficiently solve mold thermal fatigue resistance, wearability, thermal deformation resistant can be undesirable situation and the technical issues of improve the die life of mold, improve workpiece quality, yield.
Description
Technical field
The invention belongs to coat preparing technology fields, and in particular to it is a kind of stretching prestressing force cermet die casting and its
Preparation method.
Background technology
Due to die casting, die surface local temperature is high during processing and manufacturing, and alloys adhesion is on mold during depanning
It can not take out of, die surface has adhered to a laminated golden object, and causing the product respective surfaces of die casting, there are rough, coarse and recessed
A kind of casting surface defect of convex injustice, in the past by uniformly brushing anti-sticky wax on mold cavity surface or nitriding obtains nitriding layer
And anti-adhesive properties are improved, anti-sticky wax not only increases process, while influences yield and can not also ensure quality, since nitration case is easy
It comes off and itself brittleness is larger, structure is not fine and close enough and infiltration layer is thin, in use easily failure, causes the service life of mold
It is short, industrial production demand can not be met.
If being surface-treated to die casting, the heat-resistant anti-fatigue performance of mold can be improved, so as to improve the quality of mold
And the service life.Prior art report usually carries out rare earth surface hardening to die casting surface, is oozed since rare earth element has to improve
The multiple functions such as speed, strengthening surface and purification surface, it is to improving die surface institutional framework, surface physics, chemistry and mechanics
Performance has and greatly influences, and can improve infiltration rate, strengthening surface, generation rare earth compound, while can eliminate and be distributed on crystal boundary
The illeffects of trace impurity plays a part of reinforcing and stablizes mold mold cavity surface crystal boundary, so that the wearability of mold,
Thermal fatigue resistance significantly improves, so as to increase substantially die life.But since rare earth reinforced surface treatment is obtained
Coating brittleness itself is larger, and structure is not fine and close, and undesirable with the bond strength of die matrix, therefore whole coating performance has
It waits to further improve.
The content of the invention
In order to overcome above-mentioned defect in the prior art, it is an object of the invention to provide a kind of stretching prestressing force gold
Belong to ceramic die casting and preparation method thereof, by applying the metal-cermic coating for stretching prestressing force and preparing die matrix surface,
It can solve the mold of the situation that the thermal fatigue resistance of existing die casting, wearability, thermal deformation resistant can be undesirable and mold
Service life is shorter, the technical issues of so as to influence workpiece quality, yield.
The present invention is to be achieved through the following technical solutions：
The invention discloses a kind of stretching prestressing force cermet die castings, including die matrix and are arranged on its surface
Have and stretch prestressed cermet coating；Wherein：
The cermet coating is combined by metallic binding phase with particle size for 0.1~3 μm of ceramic particle, and gold
Belong in ceramic layer and contain the one or more in oxide-base, carbide base, nitride base, boride-based and silicide base.
Preferably, the cermet coating selects aluminium oxide, zirconium oxide, magnesia, titanium carbide, carborundum, tungsten carbide, nitrogen
Change titanium, boron nitride, silicon nitride, tantalum nitride, titanium boride, tantalum boride, vanadium boride, chromium boride, zirconium boride, tungsten boride, molybdenum boride, boron
Change niobium, hafnium boride, silication manganese, iron suicide, cobalt silicide, nickle silicide, titanium silicide, zirconium silicide, niobium silicide, vanadium silicide, tantalum silicide, silicon
Change the ceramic layer that the one or more in molybdenum, tungsten silicide and barium slilicide are matrix.
Preferably, the metal that the cermet coating is combined by Co and Ni for parent metal Binder Phase with SiC particulate
Ceramic layer；Wherein, the mass fraction of Co is that 20%~25%, B is 0.05%~0.15%, remaining is Ni；SiC accounts for the total matter of coating
The 40%~65% of amount.
Preferably, the thickness of the cermet coating is 0.01~0.13mm.
Preferably, the stretching prestressing force of the cermet coating is less than the generation thermal expansion strain stress in heating process
60%.
The invention also discloses the preparation methods of above-mentioned stretching prestressing force cermet die casting, comprise the following steps：
1) cleaning treatment die matrix；
2) die matrix surface after the cleaning process, using spraying process, vapour deposition process, laser melting coating, composite deposite
Method, self-propagating high-temperature synthetic method or high-temperature melting method, which prepare to have, stretches prestressed metal-cermic coating, is made to stretch and in advance should
Power cermet die casting.
Preferably, cleaning treatment is to polish to remove die matrix surface step by step using the sand paper of 400#, 600# and 1000#
Oxide-film, and with acetone soln supersonic cleaning matrix surface, scavenging period is 15~25min, drying is spare.
Preferably, using laser cladding by metallic binding phase and ceramic particles deposition on die matrix surface.
Preferably, laser melting coating uses electron beam cladding, and electron beam technology parameter is：Power 2.03kw, beam spot size 7
× 9mm, electron beam translational speed are 5~8mm/s.
Compared with prior art, the present invention has technique effect beneficial below：
Stretching prestressing force cermet die casting disclosed by the invention stretches prestressing force in die matrix table by applying
Face prepares cermet coating, is adapted to by die matrix with the heat of prepared cermet interlayer so that cermet coating exists
It prepares and completes into rear, ceramic layer has stretching prestressing force, and the ceramic layer improves the anti-adhesive properties of mold, and cermet coating
It is combined by Binder Phase and small size ceramic particle, is metallurgical binding or machinery knot between metal-cermic coating and die matrix
It closes, so as to improve the quality of mold and service life, has reached desired effect, the stretching prestressing force that coating has in itself improves
The thermal deformation resistant of mold, thermal fatigue resistance.
Further, the present invention is to there is oxide-base, and carbide base, nitride base is boride-based, and one in silicide base
Kind or a variety of cermet coatings as main component have by the method preparation of cladding stretches prestressed ceramic coating.
Preparation method disclosed by the invention prepares the stretching prestressing force cermet and comprises the following steps：A removes mold base
Body oxide-film carries out oil removing cleaning.B selects spraying process, vapour deposition process, composite deposite method, self-propagating high-temperature synthetic method or height
A kind of prepared that temperature is fused in method stretches prestressing force metal-cermic coating.The coating being prepared by this method effectively solves
The thermal fatigue resistance of mold, wearability, thermal deformation resistant can be undesirable situation and improve the die life of mold, improve
The technical issues of workpiece quality, yield.This method can will significantly improve 8-25 times die life, preparation method operation letter
Single, treatment effeciency is high.
Description of the drawings
Fig. 1 is the structure diagram of the stretching prestressing force cermet die casting of the present invention.
Wherein, 1 is die matrix；2 be cermet coating.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Embodiment 1
Referring to Fig. 1, one kind, which has, stretches prestressing force cermet die casting, by die matrix 1 and is arranged on its surface
Top is formed with prestressed cermet coating 2 is stretched.The cermet coating is as main component for tungsten carbide+tantalum silicide
Ceramic layer is adapted to by the heat of die matrix and prepared cermet interlayer so that cermet coating after the completion of preparation,
Ceramic layer has stretching prestressing force, stretches the 60% of the generation thermal expansion strain stress that prestressing force is less than in heating process, wherein, gold
Belong to ceramic layer by metallic binding phase and particle size be no more than 3um ceramic particle it is compound form, the size of ceramic particle is preferred
0.1-3um, the thickness for stretching prestressing force metal layer are 0.04mm.
It is above-mentioned that there is the preparation method for stretching prestressing force cermet die casting, comprise the following steps：
1) polished step by step using the sand paper of 400#, 600#, 1000# and remove die surface oxide, remove die matrix table
The oxide-film in face, and with the supersonic cleaning matrix surface of acetone soln, make surface totally spare, scavenging period 15min, so
After dry up it is spare；
2) using laser melting and coating technique 1 surface of die matrix prepare have stretch prestressing force cermet coating, with tungsten carbide+
Tantalum silicide is raw material, and the ingredient proportion of cladding material is weight percentage, and tungsten carbide 20%, surplus is tantalum silicide, and granularity is
200 mesh are sufficiently mixed before laser melting coating using ball mill and uniformly, prepare the cermet coating that thickness is 0.04mm and manufacture the painting
Layer electron beam technology parameter be：Power 2.03kw, beam spot size are 7 × 9mm, and electron beam translational speed is 5mm/s.
Embodiment 2
One kind, which has, stretches prestressing force cermet die casting, is carried by die matrix 1 with being arranged on its surface
Prestressed cermet coating 2 is stretched to form.The cermet coating is tungsten carbide+tantalum silicide ceramic layer as main component,
It is adapted to by die matrix with the heat of prepared cermet interlayer so that cermet coating is after the completion of preparation, ceramic layer
There is stretching prestressing force, stretch the 60% of the generation thermal expansion strain stress that prestressing force is less than in heating process, wherein, cermet
Layer by metallic binding phase and particle size be no more than 3um ceramic particle it is compound form, the preferred 0.1- of size of ceramic particle
3um, the thickness for stretching prestressing force metal layer are 0.10mm.
It is above-mentioned that there is the preparation method for stretching prestressing force cermet die casting, comprise the following steps：
1) polished step by step using the sand paper of 400#, 600#, 1000# and remove die surface oxide, remove die matrix table
The oxide-film in face, and with the supersonic cleaning matrix surface of acetone soln, make surface totally spare, scavenging period 20min, so
After dry up it is spare；
2) had using laser melting and coating technique preparation and stretch prestressing force cermet coating, using tungsten carbide+tantalum silicide as raw material, melted
The ingredient proportion for covering material is weight percentage, tungsten carbide 20%, and surplus is tantalum silicide, and granularity is 200 mesh, before laser melting coating
It is sufficiently mixed using ball mill and uniformly, prepares the electron beam technology ginseng that the cermet coating that thickness is 0.10mm manufactures the coating
Number is：Power 5kw, beam spot size are 7 × 9mm, and electron beam translational speed is 7mm/s.
Embodiment 3
One kind, which has, stretches prestressing force cermet die casting, is carried by die matrix 1 with being arranged on its surface
Prestressed cermet coating 2 is stretched to form.The cermet coating is magnesia+tantalum silicide ceramic layer as main component,
It is adapted to by die matrix with the heat of prepared cermet interlayer so that cermet coating is after the completion of preparation, ceramic layer
There is stretching prestressing force, stretch the 60% of the generation thermal expansion strain stress that prestressing force is less than in heating process, wherein, cermet
Layer by metallic binding phase and particle size be no more than 3um ceramic particle it is compound form, the preferred 0.1- of size of ceramic particle
3um, the thickness for stretching prestressing force metal layer are 0.04mm.
It is above-mentioned that there is the preparation method for stretching prestressing force cermet die casting, comprise the following steps：
1) polished step by step using the sand paper of 400#, 600#, 1000# and remove die surface oxide, remove die matrix table
The oxide-film in face, and with the supersonic cleaning matrix surface of acetone soln, make surface totally spare, scavenging period 15min, so
After dry up it is spare；
2) had using laser melting and coating technique preparation and stretch prestressing force cermet coating, using magnesia+tantalum silicide as raw material, melted
The ingredient proportion for covering material is weight percentage, magnesia 20%, and surplus is tantalum silicide, and granularity is 200 mesh, before laser melting coating
It is sufficiently mixed using ball mill and uniformly, prepares the electron beam technology ginseng that the cermet coating that thickness is 0.04mm manufactures the coating
Number is：Power 2.03kw, beam spot size are 7 × 9mm, and electron beam translational speed is 5mm/s.
Embodiment 4
One kind, which has, stretches prestressing force cermet die casting, is carried by die matrix 1 with being arranged on its surface
Prestressed cermet coating 2 is stretched to form.The cermet coating is magnesia+tantalum silicide ceramic layer as main component,
It is adapted to by die matrix with the heat of prepared cermet interlayer so that cermet coating is after the completion of preparation, ceramic layer
There is stretching prestressing force, stretch the 60% of the generation thermal expansion strain stress that prestressing force is less than in heating process, wherein, cermet
Layer by metallic binding phase and particle size be no more than 3um ceramic particle it is compound form, the preferred 0.1- of size of ceramic particle
3um, the thickness for stretching prestressing force metal layer are 0.10mm.
It is above-mentioned that there is the preparation method for stretching prestressing force cermet die casting, comprise the following steps：
1) polished step by step using the sand paper of 400#, 600#, 1000# and remove die surface oxide, remove die matrix table
The oxide-film in face, and with the supersonic cleaning matrix surface of acetone soln, make surface totally spare, scavenging period 20min, so
After dry up it is spare；
2) had using laser melting and coating technique preparation and stretch prestressing force cermet coating, using magnesia+tantalum silicide as raw material, melted
The ingredient proportion for covering material is weight percentage, magnesia 20%, and surplus is tantalum silicide, and granularity is 200 mesh, before laser melting coating
It is sufficiently mixed using ball mill and uniformly, prepares the electron beam technology ginseng that the cermet coating that thickness is 0.10mm manufactures the coating
Number is：Power 5kw, beam spot size are 7 × 9mm, and electron beam translational speed is 7mm/s.
In conclusion stretching prestressing force cermet die casting disclosed by the invention, draws including die matrix with carrying
Stretch prestressed cermet coating；The cermet coating is contains oxide-base, and carbide base, nitride base is boride-based,
One or more ceramic layer as main component in silicide base, cermet coating is by metallic binding phase and the ceramics of small size
Particles dispersed forms, and is adapted to by die matrix with the heat of prepared cermet interlayer so that prepared by cermet coating
Complete into rear, ceramic layer has stretching prestressing force, is metallurgical binding or mechanical bond between cermet coating and die matrix.
The stretching prestressing force cermet is prepared to comprise the following steps：A removes die matrix oxide-film, and it is clear to carry out oil removing
It washes.B selects spraying process, vapour deposition process, composite deposite method, prepared by a kind of in self-propagating high-temperature synthetic method or high-temperature melting method
Have and stretch prestressing force metal-cermic coating.The coating obtained by the manufacturing technology of the present invention efficiently solves the heat-resisting tired of mold
Lao Xing, wearability, thermal deformation resistant undesirable situation and can improve the die life of mold, improve workpiece quality, yield
The technical issues of.
Claims (9)
1. a kind of stretching prestressing force cermet die casting, which is characterized in that including die matrix (1) and be arranged on its surface
Have and stretch prestressed cermet coating (2)；Wherein：
The cermet coating (2) is combined by metallic binding phase with particle size for 0.1~3 μm of ceramic particle, and gold
Belong in ceramic layer (2) and contain the one or more in oxide-base, carbide base, nitride base, boride-based and silicide base.
2. stretching prestressing force cermet die casting according to claim 1, which is characterized in that the cermet coating
(2) selection aluminium oxide, zirconium oxide, magnesia, titanium carbide, carborundum, tungsten carbide, titanium nitride, boron nitride, silicon nitride, tantalum nitride,
Titanium boride, tantalum boride, vanadium boride, chromium boride, zirconium boride, tungsten boride, molybdenum boride, niobium (Nb) boride, hafnium boride, silication manganese, iron suicide,
One in cobalt silicide, nickle silicide, titanium silicide, zirconium silicide, niobium silicide, vanadium silicide, tantalum silicide, molybdenum silicide, tungsten silicide and barium slilicide
Kind or a variety of ceramic layers for matrix.
3. stretching prestressing force cermet die casting according to claim 1, which is characterized in that the cermet coating
(2) cermet coating being combined by Co and Ni for parent metal Binder Phase with SiC particulate；Wherein, the mass fraction of Co is
20%~25%, B are 0.05%~0.15%, remaining is Ni；SiC accounts for the 40%~65% of coating gross mass.
4. stretching prestressing force cermet die casting according to claim 1, which is characterized in that the cermet coating
(2) thickness is 0.01~0.13mm.
5. stretching prestressing force cermet die casting according to claim 1, which is characterized in that the cermet coating
(2) stretch the generation thermal expansion strain stress that prestressing force is less than in heating process 60%.
6. the preparation method of the stretching prestressing force cermet die casting in Claims 1 to 5 described in any one, feature
It is, comprises the following steps：
1) cleaning treatment die matrix (1)；
2) die matrix (1) surface after the cleaning process, using spraying process, vapour deposition process, laser melting coating, composite deposite
Method, self-propagating high-temperature synthetic method or high-temperature melting method, which prepare to have, stretches prestressed metal-cermic coating (2), and it is pre- that stretching is made
Stress cermet die casting.
7. the preparation method according to claim 6 for stretching prestressing force cermet compression mod, which is characterized in that at cleaning
Reason is to polish to remove the oxide-film on die matrix (1) surface step by step using the sand paper of 400#, 600# and 1000#, and molten with acetone
Liquid supersonic cleaning matrix surface, scavenging period are 15~25min, and drying is spare.
8. the preparation method according to claim 6 for stretching prestressing force cermet compression mod, which is characterized in that using sharp
Light cladding method is by metallic binding phase and ceramic particles deposition on die matrix (1) surface.
9. the preparation method according to claim 8 for stretching prestressing force cermet compression mod, which is characterized in that laser melts
It covers using electron beam cladding, electron beam technology parameter is：Power 2.03kw, beam spot size be 7 × 9mm, electron beam translational speed
For 5~8mm/s.
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| CN201711409106.7A CN108103500A (en) | 2017-12-22 | 2017-12-22 | A kind of stretching prestressing force cermet die casting and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108950537A (en) * | 2018-07-02 | 2018-12-07 | 东南大学 | Cubic boron nitride self-lubricating coat in use cutter and preparation method thereof |
| CN109023359A (en) * | 2018-11-05 | 2018-12-18 | 湘潭大学 | A kind of the prestressing force laser melting coating crackle suppressing method and device of Model For The Bush-axle Type Parts |
| CN109321803A (en) * | 2018-11-30 | 2019-02-12 | 苏州艾默特材料技术有限公司 | A kind of heating element with porous ceramics coating |
| CN109481105A (en) * | 2018-11-01 | 2019-03-19 | 镁荷津生物科技(上海)有限公司 | A kind of sealer and manufacturing method and angiocarpy bracket with compression |
| CN110723964A (en) * | 2019-09-30 | 2020-01-24 | 江西中材新材料有限公司 | Barrier layer, sintering mold and preparation method thereof |
| CN111876715A (en) * | 2020-05-26 | 2020-11-03 | 广东粤科新材料科技有限公司 | Preparation method of plastic pipeline extrusion die with composite function |
| CN113388833A (en) * | 2021-05-31 | 2021-09-14 | 四川大学 | Preparation method of erosion and wear resistant fluid valve part |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108950537A (en) * | 2018-07-02 | 2018-12-07 | 东南大学 | Cubic boron nitride self-lubricating coat in use cutter and preparation method thereof |
| CN109481105A (en) * | 2018-11-01 | 2019-03-19 | 镁荷津生物科技(上海)有限公司 | A kind of sealer and manufacturing method and angiocarpy bracket with compression |
| CN109023359A (en) * | 2018-11-05 | 2018-12-18 | 湘潭大学 | A kind of the prestressing force laser melting coating crackle suppressing method and device of Model For The Bush-axle Type Parts |
| CN109321803A (en) * | 2018-11-30 | 2019-02-12 | 苏州艾默特材料技术有限公司 | A kind of heating element with porous ceramics coating |
| CN110723964A (en) * | 2019-09-30 | 2020-01-24 | 江西中材新材料有限公司 | Barrier layer, sintering mold and preparation method thereof |
| CN110723964B (en) * | 2019-09-30 | 2022-04-01 | 江西中材新材料有限公司 | Barrier layer, sintering mold and preparation method thereof |
| CN111876715A (en) * | 2020-05-26 | 2020-11-03 | 广东粤科新材料科技有限公司 | Preparation method of plastic pipeline extrusion die with composite function |
| CN113388833A (en) * | 2021-05-31 | 2021-09-14 | 四川大学 | Preparation method of erosion and wear resistant fluid valve part |
| CN113388833B (en) * | 2021-05-31 | 2022-06-03 | 四川大学 | Preparation method of erosion and wear resistant fluid valve part |
| CN116162931A (en) * | 2023-04-26 | 2023-05-26 | 中国恩菲工程技术有限公司 | Bottom blowing spray gun composite coating, preparation method thereof and bottom blowing spray gun |
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