CN107548255A - A kind of terminal shell and preparation method thereof - Google Patents
A kind of terminal shell and preparation method thereof Download PDFInfo
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- CN107548255A CN107548255A CN201710668103.9A CN201710668103A CN107548255A CN 107548255 A CN107548255 A CN 107548255A CN 201710668103 A CN201710668103 A CN 201710668103A CN 107548255 A CN107548255 A CN 107548255A
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Abstract
The embodiment of the invention discloses a kind of terminal shell and preparation method thereof.The preparation method includes：The layer on surface of metal of terminal shell described in electrophoretic process, electrophoresis layer is formed in the layer on surface of metal, the component of the electrophoresis layer includes resin and nano titanium oxide, polish the electrophoresis layer, make the electrophoresis layer smooth, top coat layer is formed in the electrophoresis layer after polishing using finish paint, obtains the terminal shell with sandwich construction.Because preparation method described in the embodiment of the present invention only carries out a finish paint spraying operation, an aspect enamelled coating is formed, therefore product fraction defective is greatly reduced compared to the multiple spray paint of background technology, this method, properties of product are improved, while reduce the production cost of product.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of terminal shell and preparation method thereof.
Background technology
With the continuous development of termination function, terminal is widely used by user.User is right while termination function is pursued
The aesthetic appearance of terminal it is also proposed requirement.
Current product design can produce terminal shell the white of ceramic texture to increase the aesthetic appearance of terminal
Highlight effect, terminal shell as shown in Figure 1, region A are the silver color surface of shell where letter, and other regions are white shell
Body surface face.The white high bright effect of ceramic texture mainly makes by way of the multiple spray paint in the surface of terminal shell
Out.
Although having produced the white high bright effect of ceramic texture by way of the multiple finish paint of above-mentioned spraying, due to
Each spray paint can reduce product yield, lift product fraction defective, therefore repeatedly spray paint can cause product fraction defective
It is higher, cause product cost higher.
The content of the invention
The invention provides a kind of preparation method of terminal shell, to solve multiple spray paint present in prior art
Product fraction defective can be caused higher, the problem of causing product cost higher.
First aspect, there is provided a kind of preparation method of terminal shell, methods described include：
The layer on surface of metal of terminal shell described in electrophoretic process, electrophoresis layer, the electrophoresis are formed in the layer on surface of metal
The component of layer includes resin and nano titanium oxide；
Polish the electrophoresis layer, make the electrophoresis layer smooth；
Top coat layer is formed in the electrophoresis layer after polishing using finish paint, obtains the terminal shell with sandwich construction.
Second aspect, there is provided a kind of terminal shell prepared according to above-mentioned preparation method, including：
Metal level；
Electrophoresis layer, formed on the layer on surface of metal, the component of the electrophoresis layer includes resin and titanium dioxide；
Top coat layer, formed in the electrophoresis layer on the face of the metal level.
So, in the embodiment of the present invention, when preparing terminal shell, the layer on surface of metal of first electrophoretic process terminal shell,
Layer on surface of metal forms electrophoresis layer, and the component of electrophoresis layer includes resin and titanium dioxide, electrophoresis layer of polishing afterwards, equals electrophoresis layer
It is whole, top coat layer finally is formed in electrophoresis layer after polishing using finish paint, obtains the terminal shell with sandwich construction.This
Preparation method described in inventive embodiments forms an aspect enamelled coating due to only carrying out a finish paint spraying operation, therefore compared to the back of the body
The multiple spray paint of scape technology, this method greatly reduce product fraction defective, improve properties of product, while reduce product
Production cost.
Preparation method described in the embodiment of the present invention has also carried out high light processing to the edge of terminal shell, especially by anode
Oxidation processes or electrophoretic process, further to increase the aesthetic appearance of product.
Preparation method described in the embodiment of the present invention is before the layer on surface of metal of terminal shell described in electrophoretic process, also to gold
The surface towards electrophoresis layer of category layer is surface-treated, and forms multiple micropores in layer on surface of metal, it is therefore an objective to increase electrophoresis
The contact area of layer and metal level, increase the adhesive force of electrophoresis layer and metal level, improve the stability of end product.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of existing terminal shell；
Fig. 2 is the flow chart of the preparation method of the terminal shell of one embodiment of the invention；
Fig. 3 is the flow chart of the preparation method of the terminal shell of another embodiment of the present invention；
Fig. 4 is the first schematic diagram of the preparation method of the terminal shell of one embodiment of the invention；
Fig. 5 is the second schematic diagram of the preparation method of the terminal shell of one embodiment of the invention；
Fig. 6 is the 3rd schematic diagram of the preparation method of the terminal shell of one embodiment of the invention；
Fig. 7 is the block diagram of the terminal shell of one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Embodiment one
Fig. 2 is the flow chart of the preparation method of the terminal shell of one embodiment of the invention.Terminal shell shown in Fig. 2
Preparation method includes：
The layer on surface of metal of terminal shell described in step 101, electrophoretic process, electrophoresis layer is formed in the layer on surface of metal,
The component of the electrophoresis layer includes resin and titanium dioxide.
Terminal shell described in the embodiment of the present invention is arranged in terminal and used, and terminal can be diversified forms, as mobile phone,
Flat board, notebook, camera etc..
In the embodiment of the present invention, the matrix material of terminal shell is metal material, to obtain having brilliant white porcelain effect
Terminal shell, the embodiment of the present invention use electrophoretic process method, and an electrophoresis layer is formed in the layer on surface of metal of terminal shell.
Electrophoresis refers to the process of that charged particle migrates in the presence of electric field, more in reaction solution in electrophoresis process
The effective functional group of kind migrates in the presence of electric field, is finally reacted on male or female surface, forms electrophoresis layer.Electricity
During swimming, alive size and electrophoresis time can be applied by control, to control the formation speed of electrophoresis layer and thickness
Degree.
The electrophoresis layer formed in the embodiment of the present invention can be to include various ingredients, mainly include resin and nanometer titanium dioxide
The presence of titanium, wherein nano titanium oxide can make electrophoresis layer that white be presented, and finally make terminal shell that white porcelain effect be presented；
Resin can be a variety of, such as polyacrylic resin.
Step 102, the polishing electrophoresis layer, make the electrophoresis layer smooth.
Due to the electrophoresis layer surface irregularity of formation, therefore, it is necessary to polish electrophoresis layer after electrophoretic procedures are completed
Operation, electrophoresis layer surface is polished flat.
Step 103, using finish paint top coat layer is formed in electrophoresis layer after polishing, obtain the end with sandwich construction
End housing.
Finish paint has the function that to improve terminal shell brightness have certain protective effect, the embodiment of the present invention is completed
After the polishing of electrophoresis layer, top coat layer is formed in the electrophoresis layer after polishing, finally gives the terminal shell with sandwich construction.
Top coat layer can be formed over the electrophoretic layer using various ways, such as spray-coating surface enamelled coating or brushing finish paint over the electrophoretic layer
Layer.UV-curable finish coat (UV solidifies finish paint), or polyurethane finish can such as be selected according to actual selection finish paint species
The combination of (PU finish paints) and UV-curable finish coat (UV solidifies finish paint).UV-curable finish coat can include various ingredients, such as
UV-curable finish coat mainly includes polyurethane acrylic resin, UV monomers, diluent, light trigger and organosilicon auxiliary agent, also
The reagents such as other additives can be added in UV-curable finish coat as needed to strengthen finish paint performance.
Due to only carrying out a finish paint spraying operation, an aspect enamelled coating is formed, therefore compared to the multiple spray of background technology
Paint, greatly reduce product fraction defective, improve the rate of product two, and then reduce production cost.
According to the embodiment of the present invention, when preparing terminal shell, the layer on surface of metal of first electrophoretic process terminal shell, in metal
Layer surface forms electrophoresis layer, and the component of electrophoresis layer includes resin and titanium dioxide, electrophoresis layer of polishing afterwards, makes electrophoresis layer smooth,
Top coat layer finally is formed in the electrophoresis layer after polishing using finish paint, obtains the terminal shell with sandwich construction.This hair
Preparation method described in bright embodiment forms an aspect enamelled coating due to only carrying out a finish paint spraying operation, therefore compared to background
The multiple spray paint of technology, this method greatly reduce product fraction defective, improve properties of product, while reduce product
Production cost.
Embodiment two
Fig. 3 is the flow chart of the preparation method of the terminal shell of another embodiment of the present invention.Terminal shell shown in Fig. 3
Preparation method include：
The layer on surface of metal of terminal shell described in step 201, electrophoretic process, electrophoresis layer is formed in the layer on surface of metal,
The component of the electrophoresis layer includes resin and nano titanium oxide.
The matrix structure of terminal shell prepared by the embodiment of the present invention is metal level, such as aluminium alloy layer, by metal level
Handled, obtain required terminal shell.The metal of structure snd size needed for being obtained by using Digit Control Machine Tool (CNC)
Rotating fields, and required metal level is obtained by grinding process.
This method carries out electrophoretic process to layer on surface of metal first and forms electrophoresis layer, and electrophoresis layer is attached to layer on surface of metal.
Can be according to the reaction condition being actually needed in control electrophoresis process.In the embodiment of the present invention, the component bag of the electrophoresis layer of formation
Include resin and nano titanium oxide, nano titanium oxide is used for the white effect for increasing terminal shell, resin can be it is a variety of, such as
Polyacrylic resin.
So that the metal level of terminal shell is aluminium alloy layer as an example, the reaction to carrying out electrophoretic process on aluminium alloy layer surface
Journey is introduced.Electrophoresis reaction solution includes R-COOH and R-NH2Following reaction occurs for two kinds of main effective functional groups, negative electrode：
2H2O+2e-→2OH-+H2, the following reaction of anode generation：2H2O-→4H++O2+4e-, the H of generation+Can be with the R- in reaction solution
COO- is combined into R-COOH in anode.Following three kinds of reactions can then occur：Reaction between electrophoresis layer and aluminium alloy：R-
COOH+Al-OH (aluminium alloy) → R-COO-Al+H2O；Reaction between electrophoresis layer and the top coat layer being subsequently formed：R-COOH+
R'-OH (finish paint) → R-COO-R'+H2O；Electrophoresis layer curing reaction itself：R-COOH+R-NH2→R-CO-NH-R+H2O.It is based on
Above-mentioned course of reaction, when preparing terminal shell using methods described of the embodiment of the present invention, reaction solution when can be by controlling electrophoresis
In the effectively concentration of functional group and reaction condition control reaction process, and then control the performance of products obtained therefrom.
After electrophoretic process terminates, baking temperature and baking time can be controlled, baking operation is carried out to electrophoresis layer, it is final to obtain
To required electrophoresis layer.
It is further preferred that before this step is performed, methods described can also include：Surface-treated metal layer towards
The surface of electrophoresis layer, multiple micropores are formed in layer on surface of metal.The presence of a large amount of microcellular structures considerably increases electrophoresis layer in gold
Belong to the adhesive force on layer, so as to improve properties of product.
Metal level can be surface-treated using acid solution, such as use sulfuric acid solution., can be with surface treatment process
Apply certain voltage so that normal vector direction growth of the micropore along reaction surface, prevent from being got through between micropore, cause microporous layers
Partial collapse.Alive size can be applied according to actual control.
Step 202, the polishing electrophoresis layer, make the electrophoresis layer smooth.
After forming electrophoresis layer, due to electrophoresis layer out-of-flatness, it is therefore desirable to carry out grinding process to electrophoresis layer, obtain surface and put down
Whole electrophoresis layer.
Step 203, using finish paint top coat layer is formed in electrophoresis layer after polishing, obtain the terminal shell with sandwich construction
Body.
After electrophoresis layer polishing terminates, top coat layer is formed in the electrophoresis layer after polishing.Various ways forming face can be used
Enamelled coating, such as spray paint or brushing finish paint.It can be a variety of to form the finish paint of top coat layer, such as UV-curable finish coat, polyurethane
The combination of finish paint and UV-curable finish coat.
Finish paint is formed after electrophoresis layer surface, finish paint can be entered by the hardening time and solidification temperature for controlling finish paint
Row curing process, ultimately forms top coat layer.
Step 204, the edge to the terminal shell carry out high light processing.
The edge of part terminal shell has highlight regions, the embodiment of the present invention after electrophoresis layer surface forming face enamelled coating,
High light processing is carried out to the edge of terminal shell, to increase the brightness at the edge of terminal shell.
The edge of terminal shell is carried out the mode of high light processing can include it is a variety of, such as first way, in terminal shell
The edge of body carries out chamfered, the partial shell structure at margins of excision, chamfering, the chamfering side of formation is formed in edge
Face includes metal level side, electrophoresis layer side and top coat layer side, anodized is carried out to metal level side, by metal level
Metal at side is oxidized to metal oxide.
It is above-mentioned that anodized is carried out to metal level side when the metal level of terminal shell is aluminium alloy layer, by gold
The step of metal at category layer side is oxidized to metal oxide can include：Anodized is carried out to aluminium alloy side,
By the oxidized aluminum alloy at aluminium alloy layer side into aluminum oxide.Because highlight effect, therefore anode can be presented in metal aluminum oxide
Aluminum alloy side face after oxidation has highlight effect.
The mode of the high light processing of edge progress to terminal shell can also include the following second way, use cutter pair
The edge of terminal shell carries out chamfered, and the chamfered flank of formation includes metal level side, electrophoresis layer side and top coat layer side
Face, electrophoretic process is carried out to metal level side, resin bed is formed on metal level side.Used cutter can have it is a variety of,
Such as diamond monocrystalline knife or other applicable cutters.Using the edge of diamond monocrystalline knife cutting terminal shell, can make in chamfered flank
Metal level side there is higher brightness, improve the brightness of metal level side.The resin bed formed on metal level side can be with
The Rotating fields formed for various kinds of resin, such as polyacrylic resin layer.
Metal shell is not easy to the transmission of terminal signaling, to reduce stop of the metal shell to signal, the embodiment of the present invention
The metal level of terminal shell is improved, injection molding processing is carried out using metal material and plastic material, after obtaining improvement
Metal level.Plastic material forms plastic cement antenna strip, and plastic cement antenna strip is easy to the transmission of terminal signaling, so as to improve terminal shell
The signal transfer functions of body.
The surface that some solvents can dissolve plastic cement antenna strip in finish paint be present, allow the plastic cement of dissolving and finish paint to be mixed,
After the solvent is volatilized, mixed layer is formed between plastic cement antenna strip and top coat layer, so as to improve between top coat layer and plastic cement antenna strip
Adhesive force.In addition, finish paint can also produce intermolecular force with plastic cement, such as hydrogen bond, Van der Waals force etc., above-mentioned point
Sub- intermolecular forces improve the adhesive force between top coat layer and plastic cement antenna strip.
To make those skilled in the art that the embodiment of the present invention be more clearly understood, now by following multiple examples to this hair
Bright embodiment methods described is described in detail.
Example 1
Fig. 4 is the first schematic diagram of the preparation method of the terminal shell of one embodiment of the invention.In Fig. 4,11 be that aluminium closes
Layer gold, 12 be electrophoresis layer, 13 be electrophoresis layer after polishing, 14 be top coat layer, 15 be bloom chamfered flank, 16 be on chamfered flank
Electrophoresis layer.Based on shown in Fig. 4, the preparation method of terminal shell comprises the following steps：
Step 11, using Digit Control Machine Tool aluminum alloy materials are handled, grinding process are carried out to the aluminium alloy structure of gained afterwards,
Obtain required aluminium alloy layer 11.
Used aluminum alloy materials are 6xxx series alloys, and the thickness of gained aluminium alloy layer 11 is 0.6mm.
Step 12, the surface of electrophoretic process aluminium alloy layer 11.
The surface of electrophoretic process aluminium alloy layer 11, electrophoresis layer 12 is formed on the surface of aluminium alloy layer 11.The electrophoresis layer 12 of formation
Component includes polyacrylic resin and white nano titanium oxide (TiO2), the thickness of gained electrophoresis layer 12 is 25-30 μm, electrophoresis
Layer 12 toasts after being formed to it, and baking temperature is 180 DEG C, baking time 0.5h.
Step 13, grinding process electrophoresis layer 12.
Using Sand paper for polishing polishing electrophoresis layer 12, the electrophoresis layer 13 after being polished.Removal quantity of polishing is 5 μm, sand of polishing
Paper model P4000#, polishing time are 3min.
Step 14, the surface spraying PU finish paints of electrophoresis layer 13 after polishing and the double solidification finish paints of UV finish paints, form top coat layer
14。
The thickness of top coat layer 14 is 25-30 μm, and UV energy is 600-800mj, and top coat layer 14 dries after being formed to it
Roasting, baking temperature is 80 ± 5 DEG C, baking time 10min；Toasted again afterwards, baking temperature is 80 ± 5 DEG C, baking
Time is 6h.
Step 15, the edge to terminal shell carry out CNC bloom chamfereds.
Chamfered is carried out to the edge of terminal shell using Digit Control Machine Tool CNC cutter, forms bloom chamfered flank 15.
CNC cutter is diamond monocrystalline knife, and cutter rotating speed is 10000r/min, amount of feeding 1000mm/min.
Step 16, the bloom chamfered flank 15 to gained carry out electrophoretic process, obtain required terminal shell.
Electrophoretic process is carried out to the metal level side of the bloom chamfered flank 15 of gained, the electrophoresis layer formed on chamfered flank
16.The component of electrophoresis layer 16 on chamfered flank mainly includes polyacrylic resin.Gained electrophoresis layer thickness is 3-5 μm, electrophoresis
Layer toasts after being formed to it, and baking temperature is 150 DEG C, baking time 0.5h.
Example 2
Fig. 5 is the second schematic diagram of the preparation method of the terminal shell of one embodiment of the invention.In Fig. 5,21 be that aluminium closes
Layer gold, 211 be microcellular structure layer, 22 be electrophoresis layer, 23 be electrophoresis layer after polishing, 24 be top coat layer, 25 be bloom chamfering side
Face, 26 are the anodic oxide layer on chamfered flank.Based on shown in Fig. 5, the preparation method of terminal shell comprises the following steps：
Step 21, using Digit Control Machine Tool aluminum alloy materials are handled, grinding process are carried out to the aluminium alloy structure of gained afterwards,
Obtain required aluminium alloy layer 21.
Used aluminum alloy materials are 6xxx series alloys, and the thickness of gained aluminium alloy layer 21 is 0.6mm.
Step 22, surface treatment aluminium alloy layer 21 surface, obtain microcellular structure layer 211.
Microcellular structure layer 211 is located at the surface of aluminium alloy layer 21, belongs to a part for aluminium alloy layer 21.
Reaction solution is H2SO4Solution, concentration 1.4g/L.The voltage applied during surface treatment is 19~20V, during reaction
Between be 12min, reaction temperature is 20 DEG C
Step 23, the surface of electrophoretic process aluminium alloy layer 21.
The surface of electrophoretic process aluminium alloy layer 21, electrophoresis layer 22 is formed on the surface of aluminium alloy layer 21.The electrophoresis layer 22 of formation
Component includes polyacrylic resin and white nano-TiO2, the thickness of gained electrophoresis layer 22 is 25-30 μm, after electrophoresis layer 22 is formed
It is toasted, the baking temperature of electrophoresis layer is 180 DEG C, baking time 0.5h.
Step 24, grinding process electrophoresis layer 22, the electrophoresis layer 23 after being polished.
Using Sand paper for polishing polishing electrophoresis layer 22, the electrophoresis layer 23 after being polished.Removal quantity of polishing is 5 μm, sand of polishing
Paper model P4000#, polishing time are 3min.
Step 25, the surface spraying UV finish paints of electrophoresis layer 23 after polishing, form top coat layer 24.
The thickness of top coat layer 24 is 25-30 μm, and UV energy is 600-800mj, and top coat layer 24 dries after being formed to it
Roasting, solidification temperature is 50~60 DEG C, and hardening time is 12~15s.
Step 26, the edge to terminal shell carry out CNC bloom chamfereds.
Chamfered is carried out to the edge of terminal shell using Digit Control Machine Tool CNC cutter, forms bloom chamfered flank 25.
CNC cutter is diamond monocrystalline knife, and cutter rotating speed is 10000r/min, amount of feeding 1000mm/min.
Step 27, the bloom chamfered flank 25 to gained carry out high light anode processing, obtain required terminal shell.
Anodized, anode voltage 8V, oxidation are carried out to the metal level side c of the bloom chamfered flank 25 of gained
Time is 42min, reaction solution H2SO4Concentration be 200g/L, oxidizing temperature is 18 DEG C.
Example 3
Fig. 6 is the 3rd schematic diagram of the preparation method of the terminal shell of one embodiment of the invention.In Fig. 6,31 be that aluminium closes
Layer gold, 311 be microcellular structure layer, 32 be electrophoresis layer, 33 be electrophoresis layer after polishing, 34 be top coat layer, 35 be bloom chamfering side
Face, 36 are the electrophoresis layer on chamfered flank.Based on shown in Fig. 6, the preparation method of terminal shell comprises the following steps：
Step 31, using Digit Control Machine Tool aluminum alloy materials are handled, grinding process are carried out to the aluminium alloy structure of gained afterwards,
Obtain required aluminium alloy layer 31.
Used aluminum alloy materials are 6xxx series alloys, and the thickness of gained aluminium alloy layer 31 is 0.6mm.
Step 32, surface treatment aluminium alloy layer 31 surface, obtain microcellular structure layer 311.
Microcellular structure layer 311 is located at the surface of aluminium alloy layer 31, belongs to a part for aluminium alloy layer 31.
Reaction solution is H2SO4Solution, concentration 1.4g/L.The voltage applied during surface treatment is 19~20V, during reaction
Between be 12min, reaction temperature is 20 DEG C
Step 23, the surface of electrophoretic process aluminium alloy layer 31.
The surface of electrophoretic process aluminium alloy layer 31, electrophoresis layer 32 is formed on the surface of aluminium alloy layer 31.The electrophoresis layer 32 of formation
Component includes polyacrylic resin and white nano-TiO2, the thickness of gained electrophoresis layer 32 is 25-30 μm, after electrophoresis layer 32 is formed
It is toasted, the baking temperature of electrophoresis layer 32 is 180 DEG C, baking time 0.5h.
Step 24, grinding process electrophoresis layer 32, the electrophoresis layer 33 after being polished.
Using Sand paper for polishing polishing electrophoresis layer 32, the electrophoresis layer 33 after being polished.Removal quantity of polishing is 5 μm, sand of polishing
Paper model P4000#, polishing time are 3min.
Step 25, the surface spraying UV finish paints of electrophoresis layer 33 after polishing, form top coat layer 34.
The thickness of top coat layer 34 is 25-30 μm, and UV energy is 600-800mj, and top coat layer 34 dries after being formed to it
Roasting, solidification temperature is 50~60 DEG C, and hardening time is 12~15s.
Step 26, the edge to terminal shell carry out CNC bloom chamfereds.
Chamfered is carried out to the edge of terminal shell using Digit Control Machine Tool CNC cutter, forms bloom chamfered flank 35.
CNC cutter is diamond monocrystalline knife, and cutter rotating speed is 10000r/min, amount of feeding 1000mm/min.
Step 37, high voltage electrophoresis processing is carried out to gained chamfering, obtain required terminal shell.
Electrophoretic process is carried out to the metal level side d of the highlighted chamfered flank 35 of gained, formed on highlighted chamfered flank
Electrophoresis layer 36.The component of the electrophoresis layer of formation mainly includes polyacrylic resin.Electrophoresis layer on the highlighted chamfered flank of gained
36 thickness is 3-5 μm, and the electrophoresis layer 36 on highlighted chamfered flank is toasted after being formed to it, and baking temperature is 150 DEG C, is dried
The roasting time is 0.5h.
According to the embodiment of the present invention, when preparing terminal shell, the layer on surface of metal of first electrophoretic process terminal shell, in metal
Layer surface forms electrophoresis layer, and the component of electrophoresis layer includes resin and titanium dioxide, electrophoresis layer of polishing afterwards, makes electrophoresis layer smooth,
Top coat layer finally is formed in the electrophoresis layer after polishing using finish paint, obtains the terminal shell with sandwich construction.This hair
Preparation method described in bright embodiment forms an aspect enamelled coating due to only carrying out a finish paint spraying operation, therefore compared to background
The multiple spray paint of technology, this method greatly reduce product fraction defective, improve properties of product, while reduce product
Production cost.
Preparation method described in the embodiment of the present invention has also carried out high light processing to the edge of terminal shell, especially by anode
Oxidation processes or electrophoretic process, further to increase the aesthetic appearance of product.
Preparation method described in the embodiment of the present invention is before the layer on surface of metal of terminal shell described in electrophoretic process, also to gold
The surface towards electrophoresis layer of category layer is surface-treated, and forms multiple micropores in layer on surface of metal, it is therefore an objective to increase electrophoresis
The contact area of layer and metal level, increase the adhesive force of electrophoresis layer and metal level, improve the stability of end product.
Embodiment three
Fig. 7 is terminal shell prepared by the preparation method according to the above embodiment of the present invention.In Fig. 7, the terminal
Housing includes metal level a, electrophoresis layer b and top coat layer c；Wherein electrophoresis layer b is formed on metal level a surfaces, and top coat layer c is formed
Electrophoresis layer b on metal level a face.
Further, the edge of the terminal shell can be chamfering structure, and chamfering structure includes metal level side, electrophoresis layer
Side and top coat layer side, metal level side region are highlight area.
Wherein, the highlight area can be by carrying out anodized to metal level side, by metal level side
The metal at place is oxidized to metal oxide and obtained；Or can be by carrying out electrophoretic process to metal level side, in metal level
Resin bed is formed on side to obtain.
Further, it is covered in micropore surface formed with multiple micropores, electrophoresis layer on the surface towards electrophoresis layer of metal level.
Processing can be optimized to the structure of terminal shell according to above method embodiment of the present invention.
According to the embodiment of the present invention, because terminal shell can be by a finish paint spraying operation, top coat layer is formed, because
Compared to the multilayer top coat layer of background technology, terminal shell provided by the invention has the characteristics of yield is high for this, production into
This is relatively low.
The edge of terminal shell provided in an embodiment of the present invention has a highlight area, and the aesthetic appearance of product is higher.
Layer on surface of metal has multiple microcellular structures, the presence of microcellular structure in terminal shell provided in an embodiment of the present invention
Electrophoresis layer and the contact area of metal level are increased, and then adds the adhesive force of electrophoresis layer and metal level, improves terminal production
The stability of product.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (13)
1. a kind of preparation method of terminal shell, it is characterised in that methods described includes：
The layer on surface of metal of terminal shell described in electrophoretic process, electrophoresis layer is formed in the layer on surface of metal, the electrophoresis layer
Component includes resin and nano titanium oxide；
Polish the electrophoresis layer, make the electrophoresis layer smooth；
Top coat layer is formed in the electrophoresis layer after polishing using finish paint, obtains the terminal shell with sandwich construction.
2. preparation method according to claim 1, it is characterised in that the edge of the terminal shell has highlight area,
Formed in the electrophoresis layer after polishing after top coat layer, methods described also includes：
High light processing is carried out to the edge of the terminal shell.
3. preparation method according to claim 2, it is characterised in that the edge to the terminal shell carries out bloom
Processing includes：
Chamfered is carried out in the edge of the terminal shell, the chamfered flank of formation includes metal level side, electrophoresis layer side
Face and top coat layer side；
Anodized is carried out to the metal level side, the metal at the metal level side is oxidized to metal oxygen
Thing.
4. preparation method according to claim 2, it is characterised in that the edge to the terminal shell carries out bloom
Processing includes：
Chamfered is carried out to the edge of the terminal shell using cutter, the chamfered flank of formation includes metal level side, electricity
Swimming layer side and top coat layer side；
Electrophoretic process is carried out to the metal level side, resin bed is formed on the metal level side.
5. preparation method according to claim 1, it is characterised in that in the metal of terminal shell described in the electrophoretic process
Before the step of layer surface, methods described also includes：
The surface towards the electrophoresis layer of the metal level is surface-treated, multiple micropores are formed in the layer on surface of metal.
6. preparation method according to claim 1, it is characterised in that：
The finish paint is UV-curable finish coat, or the combination of polyurethane finish and UV-curable finish coat.
7. preparation method according to claim 3, it is characterised in that the metal level of the terminal shell is aluminium alloy layer；
It is described that anodized is carried out to the metal level side, the metal at the metal level side is oxidized to metal oxygen
Compound includes：
Anodized is carried out to aluminium alloy side, by the oxidized aluminum alloy at the aluminium alloy layer side into aluminum oxide.
8. preparation method according to claim 1, it is characterised in that the metal level is led to by metal material and plastic material
Cross injection molding manner to be formed, the plastic material forms plastic cement antenna strip；
The electrophoresis layer is covered in the plastic cement antenna strip surface.
9. preparation method according to claim 1, it is characterised in that the resin in electrophoresis layer is polyacrylic resin
Layer.
10. preparation method according to claim 4, it is characterised in that the resin bed formed on the metal level side
For polyacrylic resin layer.
A kind of 11. terminal shell prepared by preparation method according to any one of claim 1~10, it is characterised in that bag
Include：
Metal level；
Electrophoresis layer, formed on the layer on surface of metal；
Top coat layer, formed in the electrophoresis layer on the face of the metal level.
12. terminal shell according to claim 11, it is characterised in that the edge of the terminal shell is chamfering structure,
The chamfering structure includes metal level side, electrophoresis layer side and top coat layer side, and metal level side region is height
Light region；
The highlight area is by carrying out anodized to the metal level side, by the gold at the metal level side
Category is oxidized to metal oxide and obtained；Either by carrying out electrophoretic process to the metal level side, in the metal level side
Resin bed is formed on face to obtain.
13. terminal shell according to claim 11, it is characterised in that the table towards the electrophoresis layer of the metal level
Formed with multiple micropores on face.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710668103.9A CN107548255A (en) | 2017-08-07 | 2017-08-07 | A kind of terminal shell and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108342762A (en) * | 2018-03-09 | 2018-07-31 | 广东欧珀移动通信有限公司 | Production method, shell and the electronic device of shell |
| CN109023485A (en) * | 2018-08-23 | 2018-12-18 | 深圳和而泰智能控制股份有限公司 | A kind of surface treatment method of aluminum alloy die casting |
| CN109811390A (en) * | 2019-01-14 | 2019-05-28 | 苏州华远纳米烫印科技有限公司 | Notebook aluminum or aluminum alloy part innerside and the milling corrosion-resistant paint layer depositing operation of smooth surface |
| CN110416695A (en) * | 2019-08-13 | 2019-11-05 | 东莞美景科技有限公司 | Antenna structure of metal spraying and preparation method thereof |
| TWI718869B (en) * | 2019-04-26 | 2021-02-11 | 美商惠普發展公司有限責任合夥企業 | Electronic device housings with chamfered edges |
| CN112760695A (en) * | 2020-12-28 | 2021-05-07 | 深圳誉格金属制品有限公司 | Processing technology of aluminum alloy stretching shell |
| WO2021177977A1 (en) * | 2020-03-06 | 2021-09-10 | Hewlett-Packard Development Company, L.P. | Covers or enclosures for an electronic device |
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| CN110416695A (en) * | 2019-08-13 | 2019-11-05 | 东莞美景科技有限公司 | Antenna structure of metal spraying and preparation method thereof |
| WO2021177977A1 (en) * | 2020-03-06 | 2021-09-10 | Hewlett-Packard Development Company, L.P. | Covers or enclosures for an electronic device |
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