CN109790625A - Alloy substrates with external skin - Google Patents
Alloy substrates with external skin Download PDFInfo
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- CN109790625A CN109790625A CN201680088908.XA CN201680088908A CN109790625A CN 109790625 A CN109790625 A CN 109790625A CN 201680088908 A CN201680088908 A CN 201680088908A CN 109790625 A CN109790625 A CN 109790625A
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- external skin
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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
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/107—Post-treatment of applied coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/546—No clear coat specified each layer being cured, at least partially, separately
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- 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
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/026—Anodisation with spark discharge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/30—Metallic substrate based on refractory metals (Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/14—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
- B05D3/141—Plasma treatment
- B05D3/145—After-treatment
- B05D3/148—After-treatment affecting the surface properties of the coating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
It describes and is related to the example of coated alloy substrate.For example, the surface of processing alloy substrates includes providing the alloy substrates of die-cast metal alloy so as to the technology for coating the alloy substrates with external skin, the surface of the alloy substrates has multiple holes, and applies conductive layer on the surface of the alloy substrates.The conductive surface is made of metallic and conducting polymer, and applies the conductive layer, so that metallic fills multiple holes on the surface of the alloy substrates.Then, oxidation process is carried out on a surface to form oxide layer on a surface.The oxide layer provides the bonding of the surface and external skin.
Description
Background of invention
Metal alloy shows multifrequency nature, makes them appropriate for by commercial and industrial material to military and Medical Devices not
With application.In general, property type possessed by metal alloy is determined by the ingredient of the metal alloy.Property possessed by metal alloy
Matter determines purposes of the metal alloy in given application again.
Technique according to the composition of alloy and for manufacturing such alloy can customize metal conjunction in alloy making process
The property and characteristic of gold.The process for manufacturing metal alloy is usually controlled process.Monitor alloy composition and technological parameter with
Obtain the metal alloy with the characteristic for meeting final application.
Summary of drawings
Detailed description is provided referring to attached drawing.In the figure, the leftmost number mark of appended drawing reference first appears the appended drawing reference
Attached drawing.Identical feature and component are indicated with identical number in the whole text in attached drawing.
Fig. 1 shows the section of the die-cast metal alloy with external skin deposition of the embodiment according to this theme
Figure；
Fig. 2, which is shown, handles alloy substrates surface according to the embodiment of this theme to deposit the not same order of external skin
Section；
Fig. 3 shows a kind of illustrative methods that alloy substrates surface is handled according to the embodiment of this theme；With
Fig. 4 shows a kind of exemplary side for depositing external skin in alloy substrates according to the embodiment of this theme
Method.
Detailed description of the invention
In general, metal alloy has high surface porosity factor, has on their surfaces such as magnesium alloy, titanium alloy and aluminium alloy
There are a large amount of hole and cavity.These holes and cavity make the surface irregularity, it is hard and for coating other materials it is chemical
It is unstable.The material that this large amount of hole and cavity are also possible to reduce application is contacted with the surface of metal alloy surface, and is prevented
The material only applied is sufficiently bonded with the surface.
In addition, the surface of metal alloy or reactive, and tend to be aoxidized by atmospheric gas, with shape on a surface
At unstable oxide skin(coating).The unstable oxide skin(coating) reduces the stability of surface adhesion external skin, and makes the table
There is chemical resistance in face of different materials.
Therefore, in order to overcome problems, a variety of surface treatment process usually is imposed to the surface of metal alloy, are then sunk
Product putty and the external skin.But a variety of surface treatment process to handle surface and apply the whole process of external skin
Complicated, consuming time and resource.
According to the embodiment of this theme, the technology that alloy substrates surface is effectively treated is described.The technology reduces gold
Belong to the porosity and reactivity of alloy surface, and stablizes the surface for adhering to external skin.
In a kind of illustrative embodiments of this theme, the alloy substrates of die-cast metal alloy are received.As being appreciated that
Like that, obtain die-cast metal alloy by the way that molten metal alloy is cast or molded in pressing mold or mold, then carry out it is cooling and
Solidification is to obtain the alloy substrates.The surface of the alloy substrates be it is porous, on the surface have multiple holes.Then, at this
Conductive layer is deposited on the surface of alloy substrates.The conductive layer deposition is on a surface to be completely covered the surface.In an example
In, which can be deposited by spraying technology, or can be with manual deposition.The conductive layer can be gathered by metallic and conduction
Close object composition.
After depositing the conductive layer, mechanical processing process is imposed to the surface, the mechanical processing process may include wiping
Wash and polish the surface.In mechanical processing process, excessive conductive can remove, and by filling metallic
Hole keeps the surface smooth, thus reduces the porosity on the surface.After being machined the metal alloy, it is based on oxidation process oxygen
Change the surface of the alloy substrates, to form oxide layer on a surface.
The oxide layer being consequently formed provides stability to the surface to adhere to external skin, and makes the surface and outside
It is environmentally isolated to prevent the surface to be directly exposed to environment and reduce the reactivity and corrosion on the surface.After aoxidizing the surface,
Deposition includes the external skin of at least one coat on the surface of the alloy substrates.The external skin can be the alloy-based
Bottom provides smooth and glossiness appearance.
Deposition conductive layer and the technology aoxidized significantly reduce the porosity and reaction on the surface as a result,
Property, and enhance the external skin of application and the bonding on the surface.In addition, the technology provides processing surface and makes surface to painting
The mechanism of stable saving time and resource for covering.
Above-mentioned technology is further described referring to attached drawing 1 to 4.It should be pointed out that the description and the appended drawings only describe this theme
Principle and embodiments described herein, and should not be construed as limiting this theme.Thus it is to be understood that can design each
Kind arrangement embodies the principle of this theme although these are arranged and are not explicitly described or shown herein.In addition, this
All statements that the principle of this theme, aspect and embodiment and its specific example are enumerated in text, which are intended to, covers its equivalent.
Fig. 1 shows cutting for the die-cast metal alloy 100 with external skin deposition of the embodiment according to this theme
Face figure.The die-cast metal alloy 100 have without hole uniform outer surface, and according to technology described herein to alloy substrates
102 impose surface treatment process after obtain.Provide the description of surface treatment process in detail referring to subsequent drawings.
Referring to Fig.1, which is made of metal alloy, such as magnesium alloy, titanium alloy or aluminium alloy.The alloy
Substrate 102 can be made by manufacturing the technology of alloy, such as using pressing mold molding or the die casting metal alloy, wherein toppling over melting
Metal alloy and be then allowed to cool shape to take pressing mold.During manufacturing alloy substrates, in fact it could happen that various
Defect causes to form hole and cavity on the surface of alloy substrates 102 such as gas and air trapping.
The die-cast metal alloy 100 has the conductive layer 104 being deposited in the alloy substrates 102.The conductive layer 104 is by gold
The single or multiple layers for belonging to particle and conducting polymer form.In an example, which includes aluminum particulate, magnesium particle
One of with titanium particle, it is sub- which can be polylactene, polyphenylene vinylene, poly- sub- thienyl
Vinyl, polythiophene, poly- 3- alkylthrophene, polypyrrole, polyaniline, polyphenylene, polyphenylene sulfide and poly- furans and poly- 3,
One of 4- Ethylenedioxy Thiophene poly styrene sulfonate (PEDOT).The conductive layer 104 is by making the gold of conductive layer 104
The porosity for belonging to hole and the cavity on particle-filled 102 surface of alloy substrates to reduce the surface.
In an exemplary embodiment, which includes oxide layer 106.In an example, should
Oxide layer 106 is fine and close ceramic protective layer, provides hardness and stability for the surface, to be bonded with external skin,
And the surface is isolated with external environment, thus reduce the reactivity on the surface.In an example, which can
To be magnesia (MgO) layer with a thickness of about 3-15 microns (μm).
In addition, the die-cast metal alloy 100 includes the external skin 108 being deposited in oxide layer 106.The external skin
108 can have coat, as have be coated in die-cast metal alloy 100 on several dope layers paint coatings, so as to
The surface provides color and texture.In an example, which can be the metal coating being made of metal powder.It is such
Metal coating provides metallic luster to the surface of the alloy substrates 102.In addition, the external skin 108 makes the alloy substrates 102
It is water-fast, smooth and soft, and assign 102 antibacterial of alloy substrates, antifouling and anti-fingerprint characteristic.Including outer with this class feature
The die-cast metal alloy 100 of portion's coating can be used for the application in electronic equipment, such as manufacture laptop computer, laptop and intelligence
The rear cover and shell of energy mobile phone.
The description for having been combined Fig. 2 explains the surface for handling the die-cast metal alloy 100 to deposit external skin 108
Each stage details.
Fig. 2 shows each stage that the surface of metal alloy is handled according to an illustrative embodiments of this theme
200, it is realized by various devices.For ease of description, surface treatment process and painting are described referring to alloy substrates 202
Each stage of layer deposition.In the context of the present specification, device can be the group of equipment, machine or equipment or machine
It closes, for being operated in each stage.In the different stages, different devices and the alloy substrates 202 interact, to increase
Add the different layers being deposited on 202 surface of alloy substrates, to generate the die-cast metal alloy, such as above-mentioned die-cast metal alloy 100.
In an exemplary embodiment, the alloy substrates 202 for being surface-treated and external skin deposits are obtained.With
Conductive layer 206 is applied to the alloy substrates 202 by bringing device 204 afterwards.In an example, which can be with
It is for spraying conductive material on the surface of alloy substrates 202 to form one of conductive layer 206 in alloy substrates 202
Spraying equipment or multiple spraying equipments.In another example, which can be with manual deposition.In manual deposition, by one
Quantitative fluid conductive material is poured in alloy substrates 202 with the surface of covering alloy substrate 202, and uses such as plastic knife
Equipment of sprawling sprawl conductive material on a surface.The conductive layer 206 is similar to previously described conductive layer 104, and by gold
Belong to particle and conducting polymer composition.In an example, which allows the shape on the surface of the alloy substrates 202
At ceramic oxide layer.The ceramic oxide layer is made of metallic, and the metallic is filled in 202 table of alloy substrates
In the hole and cavity in face.
Mechanical processing process then is imposed to the alloy substrates 202 with conductive layer 206, the mechanical processing process passes through
Machinery processing apparatus 208 carries out.The machinery processing apparatus 208 may include for removing excessive conductive material from the surface
And residual conductive material is cleaned or scrubbed to polish the machine tools and polissoir on the surface.In an example, lead to
It crosses on the surface in the conductive layer 206 and rotates the polissoir to be polished.The polishing on the surface allows the gold of conductive layer 206
Belong to the hole and cavity on the particle-filled surface, so that the smooth surface, and reduce the porosity of the alloy substrates 202.Complete
After mechanical processing process, the alloy substrates 210 of machining are obtained.
In an exemplary embodiment, oxygen is carried out in the alloy substrates 210 of machining by oxidation unit 212
Change process.In an example, which can be differential arc oxidation (MAO), the oxidation unit 212 may include electrode,
The energy converter of container containing electrolyte and the MAO for carrying out the alloy substrates 202, and in the alloy-based of machining
Oxide layer 214 is formed on the surface at bottom 210.In an example, which can be in about 10-45 degrees Celsius (DEG C) of temperature
Under about 2 to 10 minutes duration are carried out under the voltage of about 160-550 volts (V).
In addition, different chemicals can be used during MAO, such as electrolyte or it is used for aoxidizing water-soluble
Liquid.The chemicals includes sodium metasilicate, metal phosphate, potassium fluoride, potassium hydroxide or sodium hydroxide, fluozirconate, hexa metaphosphoric acid
Sodium, sodium fluoride, iron ammonium oxalate, phosphate, powdered graphite, SiO 2 powder, alumina powder, metal powder and polycyclic oxygen second
Alkane alkyl phenol ether.The chemicals can be used together with water, and group becomes the water of the amount of about 0.05-15 percentage (%), pH value
It is about 8-13.The MAO improves the surface of alloy substrates 202 and the adherency for the external skin being applied in alloy substrates 202
Property, and prevent sur-face peeling problem.
After being aoxidized, external skin 216 is applied in the alloy substrates 210 of machining by coating unit 218.
For example, coating unit 218 can be in the alloy substrates 202 spray exterior cladding material coating apparatus or spraying set
It is standby.The external skin 216 may include at least one coat.The coat can be with a dope layer or multiple coating
The paint coatings of layer.In an example, which can have different color and appearance.In an example, the painting
The bed of material includes the single layer of ultraviolet (UV) coating or polyurethane (PU) coating, and in another example, which includes priming coat
And the UV coating or PU coating.
In another exemplary embodiment, the coat of the external skin 216 may include metal coating, such as metal UV
Coating or metal PU coating.The metal coating deposits on a surface so as to the alloy substrates 102 provide metallic luster.One
In a example, metal UV coating about 50-55 DEG C at a temperature of with 600-1000 millijoule (mj) UV exposure deposition about
10-12 minutes.Metal UV coating is made of pearl, metal powder, dyestuff and color pigment.In another example, the metal
UV coating can be made of resin, such as polyurethane, polycarbonate, polyurethane-acrylate, polyacrylate, polystyrene, be gathered
Ether ether ketone, polyacrylamide ether ether ketone (polyacryletheretherketone), polyester, fluoropolymer and the resin
Mixture.Metal UV coating with a thickness of about 10-25 μm.
Metal PU coating can be made of polyurethane or polyurethane-acrylate.In an example, metal PU is applied
Layer with a thickness of about 5-20 μm.In an exemplary embodiment, metal PU coating can be deposited with two layers, primary coat
Layer (not shown in the diagram) and top coating (not shown in the diagram).In an example, the priming coat is at about 80-150 DEG C
At a temperature of deposit about 20-40 minutes duration.The priming coat can be by barium sulfate, talcum, dyestuff, metal powder and coloured silk
Color pigment composition.The priming coat can also include priming coat resin such as polyurethane and acrylic acid-polyurethane, and can contain aluminum shot
Son is so as to metallic luster.Then, the top coating can about 80-140 DEG C at a temperature of deposit about 20-40 minutes.
In an example, the coat of the external skin 216 may include being deposited on before deposited metal UV coating
Priming paint and powder coating (not shown in the diagram) in oxide layer 214.In an example, the priming paint and the powder can be deposited
Coating is to improve the adhesiveness and durability of the external skin at the surface sharp edges.The priming paint can be made of resin, such as
Epoxy resin, acrylic acid-epoxy hybrid resin, acrylic resin, polyurethane and acrylic acid-polyurethane.In addition, the priming paint may be used also
To contain filler, it is selected from carbon black, titanium dioxide, clay, mica, talcum, barium sulfate, calcium carbonate, synthetic dyestuff, metal powder
End, aluminium oxide, CNT, graphene, graphite, organic and inorganic powder.
The powder coating is made of a high proportion of filler, such as talcum, clay, graphene and high aspect ratio pigment.In addition, should
Powder coating may include epoxy resin, poly- (vinyl chloride), polyamide, polyester, polyurethane, acrylic resin, polyphenylene oxide.It can be with
The primer resin is imposed temperature about 20-40 minutes of about 80-160 DEG C.In an example, the powder coating and the bottom
Paint can contain filler, be selected from carbon black, titanium dioxide, clay, mica, talcum, barium sulfate, calcium carbonate, synthetic dyestuff, metal
Powder, aluminium oxide, CNT, graphene, graphite, organic and inorganic powder.
After depositing the external skin 216 by coating unit 218, receiving has base alloy 202 and as most
The die-cast metal alloy 220 of the external skin 216 of top layer.The technology provides surface treatment process, including deposition conductive layer
The porosity and reactivity of the alloy substrates 102 are reduced with oxide layer.
Fig. 3 and Fig. 4 shows the surface for handling alloy substrates to deposit the method 300 and 400 of external skin.It retouches
The sequence for stating method 300 and 400, which is not intended to, to be interpreted to limit, and can be any number of described with combined in any order
Method frame comes implementation method 300 and 400 or alternative.
Fig. 3 shows the method 300 that alloy substrates surface is handled according to a kind of illustrative embodiments of this theme.The conjunction
The surface of gold substrate usually has a large amount of holes and cavity, this makes the surface irregularity and has to coating different materials anti-
Property.In addition, the surface is also reacted with atmospheric gas, and unstable for the holding on the surface of the external skin for that will apply
It is fixed.Therefore, in order to reduce surface porosity and reactivity and make surface-stable to adhere to external skin, be surface-treated
Process.The external skin can be deposited on coating material or metal coating in the alloy substrates single layer or multiple layers,
To provide smooth and glossiness appearance to the alloy substrates.
At box 302, apply conductive layer in the alloy substrates.The conductive layer is by metallic and conducting polymer group
At.Apply the conductive layer so that metallic fills multiple holes on the surface of the alloy substrates.
Then at box 304, oxidation process is imposed to the alloy substrates to form oxide layer on a surface.The oxygen
Change layer and provides the bonding of the surface and external skin.Alloy substrates 102 with the external skin are die-cast metal alloys, such as
Above-mentioned die-cast metal alloy 100 and 220 has and can be used for various applications (such as shell and rear cover of manufacture electronic equipment)
The characteristic of surface quality.
Fig. 4, which is shown, to be handled the surface of alloy substrates according to the another exemplary embodiment of this theme and deposits external painting
The method 400 of layer.
At box 402, alloy substrates are received.The alloy substrates are die-cast metal alloys, and have porous surface, tool
There are multiple holes and cavity.As being appreciated that, which can mold in pressing mold or mold or the die casting metal
Obtain after alloy, and the hole and cavity may be due to defect, as the metal alloy molding or press casting procedure in
Gas and air trapping.At box 404, conductive layer is deposited on the surface of the alloy substrates.The conductive layer is by metallic
It is formed with conducting polymer.
In an example, which can be one of aluminum particulate, magnesium particle and titanium particle, and the conduction
Polymer can be polylactene, polyphenylene vinylene, poly- sub- thienyl ethenylidene, polythiophene, poly- 3- alkyl
Thiophene, polypyrrole, polyaniline, polyphenylene, polyphenylene sulfide and poly- furans and poly- 3,4- Ethylenedioxy Thiophene polyphenyl second
One of alkene sulfonate (PEDOT).In an exemplary embodiment, which can be deposited on the alloy-based
On bottom 102.
After depositing the conductive layer, at box 406, mechanical processing process is imposed on the surface of the alloy substrates, with
The hole that makes metallic fill the alloy substrates be will pass through to smooth the surface.Therefore, which reduces
The porosity on the surface of the alloy substrates 102.In an example, which may include cleaning, scrub or throwing
The light surface from the surface of the alloy substrates to remove excessive conductive material.
Then, at box 408.To progress oxidation process on the surface to aoxidize the surface, and formed on a surface
Oxide layer.The oxide layer provides stability to the alloy substrates to adhere to external skin, and reduces the reactivity of the alloy substrates.
The oxide layer also provides hardness to the alloy substrates.In an exemplary embodiment, which is MAO process, and
And the oxide layer 106 is formed on the surface of the alloy substrates 102.
At box 410, external skin is deposited on the surface of the alloy substrates.The external skin may include individually applying
Coating or multiple coats.In an example, which can be the paint coatings with color and smooth texture.It can
To deposit the external skin so as to special to the glossiness appearance of alloy substrates offer and antibacterial, anti-fingerprint, antifouling and waterproof
Property.
In another exemplary embodiment, which can be by metal powder, pearl, dyestuff and color pigment
The metal coating of composition.In an example, which may include ultraviolet (UV) coating of metal or metal PU (poly- ammonia
Ester) coating.The metal coating provides metallescent appearance to the alloy substrates 102.The alloy substrates for being coated with metal coating can
For subsequent use in the application in electronic equipment, such as the rear cover of laptop computer, laptop or smart phone.
The die-cast metal alloy obtained by the surface treatment method can be used for wherein needing to have to external skin
The various purposes of the metal alloy sheet material of pore-free surface with high-adhesiveness.For example, the die-cast metal alloy can be used for making
Electronic equipment is made, such as the rear cover of laptop computer and smart phone.
Therefore, the technology significantly reduces the porosity and reactivity of the metal alloy, enhance external skin with
Bonding between the metal alloy surface.In addition, the technology provides saving time and the resource of processing metal alloy surface
Mechanism.
Use structure feature and/or method dedicated the language description embodiment of this theme, it is understood that
It is that this theme is not necessarily limited to the specific features or method.On the contrary, public under the background of some embodiments of this theme
Open and explain the specific features and method.
Claims (15)
1. a kind of method, comprising:
Alloy substrates are received, wherein the alloy substrates are the die-cast metal alloys with porous surface；
Conductive layer is deposited on the surface of the alloy substrates, wherein the conductive layer is made of metallic and conducting polymer；
Mechanical processing process is imposed to the surface of the alloy substrates, will pass through the hole for filling the metallic on the surface
To smooth the surface；
It carries out oxidation process on a surface to aoxidize the surface, and forms oxide layer on a surface；And
External skin is deposited in the alloy substrates, which includes at least one coat.
2. method as claimed in claim 1, wherein the metal alloy includes in magnesium alloy, aluminium alloy and titanium alloy
At least one.
3. method as claimed in claim 1, wherein the oxidation process is differential arc oxidation (MAO).
4. method as claimed in claim 3, wherein the MAO under the voltage of about 150-550 volts (V) into
Row.
5. method as claimed in claim 1, wherein the oxide layer with a thickness of about 3-15 microns (μm).
6. method as claimed in claim 1, wherein the conducting polymer includes polylactene, polyphenylene
Ethenylidene, poly- sub- thienyl ethenylidene, polythiophene, poly- 3- alkylthrophene, polypyrrole, polyaniline, polyphenylene, polyphenyl
At least one of thioether and poly- furans and poly- 3,4- Ethylenedioxy Thiophene poly styrene sulfonate (PEDOT).
7. method as claimed in claim 1, wherein at least one coat includes metal coating, which is applied
Layer includes the layer of at least one of metal powder, pearl, dyestuff and color pigment.
8. method as claimed in claim 7, wherein the metal coating includes ultraviolet (UV) coating of metal and metal
One of polyurethane (PU) coating.
9. a kind of method, comprising:
Apply conductive layer on the surface of alloy substrates, which is made of metallic and conducting polymer, wherein the gold
Belong to multiple holes on the surface of the particle-filled alloy substrates；And
Oxidation process is imposed to the alloy substrates to form oxide layer on a surface, wherein the oxide layer provides the surface
With the bonding of external skin.
10. method as claimed in claim 9, wherein the oxidation process is differential arc oxidation (MAO).
11. method as claimed in claim 9 further comprises applying external skin in the alloy substrates,
In the external skin include at least one coat, which includes at least one of dope layer and metal coating.
12. a kind of die-cast metal alloy, comprising:
Alloy substrates, wherein the surface of the alloy substrates is porous；
Conductive layer in the alloy substrates, the conductive layer include metallic and conducting polymer, and wherein the metallic is filled out
It fills in the hole on the surface of the alloy substrates to smooth the surface；
Oxide layer on the conductive layer forms the oxide layer based on oxidation process；With
External skin in the oxide layer, the external skin are made of at least one coat.
13. the die-cast metal alloy as claimed in claim 12, wherein at least one coat includes that metal applies
Layer, which includes one of ultraviolet (UV) coating of metal and metal polyurethane (PU) coating.
14. the die-cast metal alloy as claimed in claim 13, wherein the metal coating with a thickness of about 10-25
Micron (μm).
15. the die-cast metal alloy as claimed in claim 12, wherein at least one coat includes priming coat,
The priming coat includes at least one of barium sulfate, talcum, dyestuff, metal powder and color pigment.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2016/055598 WO2018067148A1 (en) | 2016-10-05 | 2016-10-05 | Alloy substrate with exterior coat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109790625A true CN109790625A (en) | 2019-05-21 |
Family
ID=61832173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680088908.XA Pending CN109790625A (en) | 2016-10-05 | 2016-10-05 | Alloy substrates with external skin |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20190177858A1 (en) |
| EP (1) | EP3478873A4 (en) |
| CN (1) | CN109790625A (en) |
| WO (1) | WO2018067148A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114929938A (en) * | 2019-12-09 | 2022-08-19 | 惠普发展公司，有限责任合伙企业 | Coated metal alloy substrate and method of making same |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020046324A1 (en) * | 2018-08-30 | 2020-03-05 | Hewlett-Packard Development Company, L.P. | Coated substrates for electronic devices |
| DE102020206998B4 (en) * | 2019-06-19 | 2023-02-23 | Universität Stuttgart, Körperschaft Des Öffentlichen Rechts | Method for increasing the efficiency of a power transmission device, power transmission device and use of an electrically conductive material |
| DE102019130367A1 (en) * | 2019-11-11 | 2021-05-12 | Michael Brenner | Multi-layer system |
| WO2021092852A1 (en) * | 2019-11-14 | 2021-05-20 | Hewlett-Packard Development Company, L.P. | High gloss ceramic finish enclosures |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007144322A1 (en) * | 2006-06-14 | 2007-12-21 | Basf Se | Method for producing electrically conductive surfaces on a carrier |
| CN101598909A (en) * | 2009-07-06 | 2009-12-09 | 苏州吴中恒久光电子科技有限公司 | The organic photoconductor of sandwich construction |
| WO2015122901A1 (en) * | 2014-02-14 | 2015-08-20 | Hewlett-Packard Development Company, L.P. | Substrate with insulating layer |
| CN104975292A (en) * | 2014-04-08 | 2015-10-14 | 通用汽车环球科技运作有限责任公司 | Method of preparing coating being anti-corrosion, having glossy appearance and used for light metal workpieces |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6911139B2 (en) * | 2001-08-03 | 2005-06-28 | Elisha Holding Llc | Process for treating a conductive surface and products formed thereby |
| US7396559B2 (en) * | 2003-08-11 | 2008-07-08 | General Motors Corporation | Method of making an electrically conductive element for use in a fuel cell |
-
2016
- 2016-10-05 EP EP16918429.8A patent/EP3478873A4/en not_active Withdrawn
- 2016-10-05 WO PCT/US2016/055598 patent/WO2018067148A1/en unknown
- 2016-10-05 CN CN201680088908.XA patent/CN109790625A/en active Pending
- 2016-10-05 US US16/323,088 patent/US20190177858A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007144322A1 (en) * | 2006-06-14 | 2007-12-21 | Basf Se | Method for producing electrically conductive surfaces on a carrier |
| CN101598909A (en) * | 2009-07-06 | 2009-12-09 | 苏州吴中恒久光电子科技有限公司 | The organic photoconductor of sandwich construction |
| WO2015122901A1 (en) * | 2014-02-14 | 2015-08-20 | Hewlett-Packard Development Company, L.P. | Substrate with insulating layer |
| CN104975292A (en) * | 2014-04-08 | 2015-10-14 | 通用汽车环球科技运作有限责任公司 | Method of preparing coating being anti-corrosion, having glossy appearance and used for light metal workpieces |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114929938A (en) * | 2019-12-09 | 2022-08-19 | 惠普发展公司，有限责任合伙企业 | Coated metal alloy substrate and method of making same |
Also Published As
| Publication number | Publication date |
|---|---|
| US20190177858A1 (en) | 2019-06-13 |
| EP3478873A1 (en) | 2019-05-08 |
| EP3478873A4 (en) | 2020-03-18 |
| WO2018067148A1 (en) | 2018-04-12 |
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