CN104812192B - A kind of method and injection molding metal shell of optimization injection molding metal shell appearance - Google Patents
A kind of method and injection molding metal shell of optimization injection molding metal shell appearance Download PDFInfo
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- CN104812192B CN104812192B CN201510164135.6A CN201510164135A CN104812192B CN 104812192 B CN104812192 B CN 104812192B CN 201510164135 A CN201510164135 A CN 201510164135A CN 104812192 B CN104812192 B CN 104812192B
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 99
- 239000002184 metal Substances 0.000 title claims abstract description 99
- 238000001746 injection moulding Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000005457 optimization Methods 0.000 title claims abstract description 21
- 239000003973 paint Substances 0.000 claims abstract description 155
- 230000037452 priming Effects 0.000 claims abstract description 41
- 239000004033 plastic Substances 0.000 claims abstract description 30
- 229920003023 plastic Polymers 0.000 claims abstract description 30
- 238000003754 machining Methods 0.000 claims abstract description 27
- 229910000838 Al alloy Inorganic materials 0.000 claims description 35
- 230000007704 transition Effects 0.000 claims description 33
- 239000002904 solvent Substances 0.000 claims description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000000016 photochemical curing Methods 0.000 claims description 8
- 239000000049 pigment Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 239000010407 anodic oxide Substances 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- 150000001298 alcohols Chemical class 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 30
- 239000000243 solution Substances 0.000 abstract description 2
- 239000002519 antifouling agent Substances 0.000 description 13
- 238000001771 vacuum deposition Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000003666 anti-fingerprint Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000003678 scratch resistant effect Effects 0.000 description 2
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
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- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present embodiments relate to injection molding metal shell technical field more particularly to the methods and injection molding metal shell of a kind of optimization injection molding metal shell appearance.This method includes：The seamed edge of metal shell body surface spraying priming paint after injection molding, colored paint of the spraying with metal-like on priming paint, then the metal shell body to having sprayed colored paint carries out bloom chamfer machining, finally makees protection processing to the seamed edge after bloom chamfer machining.Technical solution provided in an embodiment of the present invention, by carrying out colored paint of the one spraying with metal-like to the parts of plastics and metal part that are molded metal shell, so that the appearance of injection molding metal shell possesses unified color, the overall aesthetic degree of injection molding metal shell appearance is improved.
Description
Technical field
The present embodiments relate to injection molding metal shell technical fields more particularly to a kind of optimization to be molded metal shell appearance
Method and injection molding metal shell.
Background technology
With the fast development of electronic technology, people require the aesthetics of electronic product casing higher and higher.Metal material
The shell of matter has higher hardness and abrasion resistance, and fashionable appearance, has won liking for numerous users.Especially aluminium alloy
The shell of material, lighter in weight are convenient for carrying, so many electronic products all use the shell of aluminum alloy material.In order to be promoted
The effect of antenna in electronic product, it will usually the molded portion plastics in aluminum alloy casing.Existing injection molding aluminum alloy casing exists
After injection step when production and processing is completed, anodized directly just is done to shell so that only aluminium alloy part tool
There is metal-like, and parts of plastics is still plastics, the two colouring discrimination is apparent, leverages the aesthetics of overall appearance.
Invention content
The purpose of the embodiment of the present invention is to propose a kind of method and injection molding metal shell of optimization injection molding metal shell appearance,
It is optimized with the production and processing method to existing injection molding metal shell, solves the appearance color of existing injection molding metal shell
Inconsistent problem promotes the overall aesthetic degree of casing appearance.
On the one hand, an embodiment of the present invention provides a kind of methods of optimization injection molding metal shell appearance, including：
Metal shell body surface spraying priming paint after injection molding；
Colored paint of the spraying with metal-like on the priming paint；
The seamed edge of metal shell body to having sprayed colored paint carries out bloom chamfer machining；
Protection processing is made to the seamed edge after bloom chamfer machining.
Further, the seamed edge of the metal shell body to having sprayed colored paint carries out bloom chamfer machining, including：
The sprayed protection paint in the metal shell body for sprayed colored paint；
The seamed edge of metal shell body to having sprayed protective paint carries out bloom chamfer machining.
Further, the protective paint is that transparent ultraviolet photo-curing paints.
Further, the metal shell body surface spraying priming paint after injection molding, including：
Metal shell body surface spraying transition paint after injection molding；
Spray-applied primer is painted in the transition.
Further, the protection processing uses technique for vacuum coating or anode oxidation process.
On the other hand, an embodiment of the present invention provides a kind of injection molding metal shells, including：
The injection moulding plastic in metal-back and the ontology formed are the chamfering with matcoveredn at the seamed edge of the ontology；Institute
It states the surface on ontology in addition to chamfering and is coated with priming paint, the primed surface is coated with the colored paint with metal-like.
Further, it is also coated with protective paint on the colored paint surface.
Further, the protective paint is that transparent ultraviolet photo-curing paints.
Further, the surface in addition to chamfering and transition paint is also coated between priming paint on the ontology.
Further, the protective layer is vacuum coating or anodic oxide coating.
The method of the optimization injection molding metal shell appearance provided in the embodiment of the present invention, the metal shell body after injection molding
The rib of surface spraying priming paint, colored paint of the spraying with metal-like on priming paint, then the metal shell body to having sprayed colored paint
Side carries out bloom chamfer machining, finally makees protection processing to the seamed edge after bloom chamfer machining, outside to injection molding metal
The parts of plastics and metal part of shell carry out colored paint of the one spraying with metal-like so that the appearance for being molded metal shell is gathered around
There is unified color, improves the overall aesthetic degree of injection molding metal shell appearance.
The injection molding metal shell provided in the embodiment of the present invention, due on the overall surface of parts of plastics and metal part
It is integrally coated with priming paint and the colored paint with metal-like, has covered the difference of parts of plastics and metal part color, is used
The color of plastics is can't see at family in use, and the overall appearance solid colour of shell creates an aesthetic feeling, improves making for user
With experience.
Description of the drawings
Fig. 1 is the flow diagram for the method that a kind of optimization that the embodiment of the present invention one provides is molded metal shell appearance；
Fig. 2 is a kind of flow diagram of the method for optimization injection molding metal shell appearance provided by Embodiment 2 of the present invention；
Fig. 3 is the flow diagram for the method that a kind of optimization that the embodiment of the present invention three provides is molded metal shell appearance；
Fig. 4 is the flow signal for the method that a kind of optimization that the embodiment of the present invention four provides is molded aluminum alloy casing appearance
Figure；
Fig. 5 is a kind of partial sectional schematic view for injection molding aluminum alloy casing that the embodiment of the present invention five provides.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.It is appreciated that
It is that specific embodiment described herein is used only for explaining the present invention rather than limitation of the invention.It further needs exist for illustrating
, only the parts related to the present invention are shown for ease of description, in attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is the flow diagram for the method that a kind of optimization that the embodiment of the present invention one provides is molded metal shell appearance,
As shown in Figure 1, this method includes：
Step 101, the metal shell body surface spraying priming paint after injection molding.
Metal shell body after injection molding is made of parts of plastics and metal part, and the two color difference is larger, and boundary is bright
It is aobvious, in order to achieve the purpose that same color is presented in the appearance for keeping injection molding metal shell final, need to cover parts of plastics and
The color distortion of metal part can realize that color is unified by way of integrally spraying colored paint, but existing with metallic
The general adhesive force of coloured paint of sense is very low, it is difficult to it is painted on the metal shell body surface after injection molding, so this
The color distortion of parts of plastics and metal part is covered using first spray-applied primer in embodiment.Illustratively, the priming paint
May include resin, solvent, pigment and auxiliary agent, wherein pigment can be the white inorganic pigments such as titanium dioxide or other with it is rear
Pigment similar in the colored paint color of continuous spraying, main function is as between the metal shell body after colored paint and injection molding
Transition makes colored paint that can be effectively attached in metal shell body in spraying process, while covering parts of plastics and gold
Belong to the color distortion of part.
Preferably, the specific ingredient of the priming paint includes mainly by mass percentage：20~30% acrylic resin,
5~10% benzene kind solvent, 3~8% esters solvent, 10~15% alcohols solvent, 10~15% ketones solvent, 20~
30% as pigment titanium dioxide and 10~15% the filler as auxiliary agent.
Preferably, the thickness of spray-applied primer is 20~40 microns.
Step 102, colored paint of the spraying with metal-like on priming paint.
The colored paint with metal-like refers to band just like the metal-like as the anodic oxidation of metal, coloured
It paints, silver color, gold or grey can be respectively adopted according to the difference of brand or model in specific color etc..The colored paint can be existing
Common metallic paint or other paint of satisfaction with metal-like condition on the market.
Preferably, the thickness for spraying colored paint is 10~15 microns.
Step 103, metal shell body to having sprayed colored paint seamed edge carry out bloom chamfer machining.
It is metal material at the seamed edge of general injection molding metal shell, needs to make chamfering, can remove preceding processes in this way
The burr of generation can also prevent user to be accidentally scratched in use, can also promote the overall beautiful of metal shell
Degree.Illustratively, numerically-controlled machine tool (Computer numerical control, CNC) can be used in the present embodiment and carry out bloom
Chamfer machining.
Step 104 makees protection processing to the seamed edge after bloom chamfer machining.
It carries out priming paint and colored paint at the seamed edge after bloom chamfer machining to be all removed, metal part can expose
Come, the metal at bloom chamfering aoxidizes or is corroded in order to prevent, needs to make protection processing to seamed edge.
Illustratively, now mature technique for vacuum coating or anode oxidation process can be used.
The method for the optimization injection molding metal shell appearance that the embodiment of the present invention one provides, the metal shell body after injection molding
The rib of surface spraying priming paint, colored paint of the spraying with metal-like on priming paint, then the metal shell body to having sprayed colored paint
Side carries out bloom chamfer machining, finally makees protection processing to the seamed edge after bloom chamfer machining, outside to injection molding metal
The parts of plastics and metal part of shell carry out colored paint of the one spraying with metal-like so that the appearance for being molded metal shell is gathered around
There is unified color, improves the overall aesthetic degree of injection molding metal shell appearance.
Embodiment two
Fig. 2 is a kind of flow diagram of the method for optimization injection molding metal shell appearance provided by Embodiment 2 of the present invention,
The present embodiment is optimized based on above-described embodiment, in the present embodiment, by step to having sprayed the metal shell of colored paint
The seamed edge of ontology carries out bloom chamfer machining and is optimized for：The sprayed protection paint in the metal shell body for sprayed colored paint, to spray
The seamed edge for being painted with the metal shell body of protective paint carries out bloom chamfer machining.
Correspondingly, the method for the present embodiment includes the following steps：
Step 201, the metal shell body surface spraying priming paint after injection molding.
Step 202, colored paint of the spraying with metal-like on priming paint.
Step 203, the sprayed protection paint in the metal shell body for sprayed colored paint.
In order to avoid causing to damage to the colored paint sprayed during carrying out bloom chamfer machining, sprayed in the present embodiment
It is painted with sprayed protection paint in the metal shell body of colored paint.Illustratively, the protective paint can be colourless ultraviolet photo-curing
Paint (Ultraviolet Curing Paint, UV paint), also referred to as light-initiated coating or photo-curing material, in the photograph of ultraviolet light
It penetrates down and promotes decomposition of initiator, generate free radicals, cause resin reaction, instantaneous solidification film forming, UV paints are current most environmentally friendly oil
Paint, hardness is good, and transparency is high.In addition, after spraying UV paints, can scratch resistant, anti-fingerprint, and corrosion resistance is strong, is resistant to strong acid.
Illustratively, sprayed protection paint step can be completed by CNC.
Step 204, metal shell body to having sprayed protective paint seamed edge carry out bloom chamfer machining.
Step 205 makees protection processing to the seamed edge after bloom chamfer machining.
The method of optimization injection molding metal shell appearance provided by Embodiment 2 of the present invention, in the metal shell for having sprayed colored paint
Sprayed protection paint on ontology can avoid causing to damage to the colored paint sprayed during carrying out bloom chamfer machining, simultaneously
Can make the injection molding metal shell surface machined have scratch resistant, anti-fingerprint and it is corrosion-resistant the advantages that.
Embodiment three
Fig. 3 is the flow diagram for the method that a kind of optimization that the embodiment of the present invention three provides is molded metal shell appearance,
The present embodiment is optimized based on above-described embodiment, in the present embodiment, by metal shell body of the step after injection molding
Surface spraying priming paint is optimized for：Metal shell body surface spraying transition paint after injection molding paints spraying bottom in the transition
Paint.
Correspondingly, the method for the present embodiment includes the following steps：
Step 301, the metal shell body surface spraying transition paint after injection molding.
In order to further enhance adhesive force of the priming paint on the metal shell body surface after injection molding, sprayed in the present embodiment
Before priming, the first metal shell body surface spraying transition paint after injection molding.Illustratively, the transition paint and priming paint can
For same paint.Preferably, the thickness of transition paint is thinner than priming paint, if the thickness of priming paint is 20~40 microns, the thickness of transition paint
Degree is 15~30 microns.
In addition, the transition paint can also play the role of covering the color distortion of parts of plastics and metal part simultaneously.
Step 302 paints spray-applied primer in transition.
Preferably, after having sprayed transition paint, after after transition paint naturally dry or other drying means being used to be dried,
Again spray-applied primer is painted in transition.
Step 303, colored paint of the spraying with metal-like on priming paint.
Step 304, the sprayed protection paint in the metal shell body for sprayed colored paint.
Step 305, metal shell body to having sprayed protective paint seamed edge carry out bloom chamfer machining.
Step 306 makees protection processing to the seamed edge after bloom chamfer machining.
The method for the optimization injection molding metal shell appearance that the embodiment of the present invention three provides first is being noted before spray-applied primer
Metal shell body surface spraying transition paint after modeling, can further enhance metal shell body surface of the priming paint after injection molding
On adhesive force, while further enhancing the level of coverage of the color distortion to parts of plastics and metal part.
Example IV
Fig. 4 is the flow signal for the method that a kind of optimization that the embodiment of the present invention four provides is molded aluminum alloy casing appearance
Figure, the present embodiment are optimized based on above-described embodiment, are described in detail for being molded aluminum alloy mobile phone shell.
Correspondingly, the method for the present embodiment includes the following steps：
Step 401, using cotton piece buff polishing or manual grinding by the way of to the aluminum alloy mobile phone shell ontology after injection molding above
Parts of plastics polish with aluminium alloy part intersection.
It is to be polished to the intersection of parts of plastics and aluminium alloy part without offset, i.e. plastics that the step, which needs effect to be achieved,
With aluminium alloy part without step, entire body surface is flat smooth for part.
Step 402, the aluminum alloy mobile phone shell body surface after injection molding spray transition paint.
The thickness of the transition paint is 20 microns, and specific ingredient includes mainly by mass percentage：20~30%
Acrylic resin, 5~10% benzene kind solvent, 3~8% esters solvent, 10~15% alcohols solvent, 10~15% ketone
Class solvent, 20~30% as pigment titanium dioxide and 10~15% the filler as auxiliary agent.
Step 403 paints spray-applied primer in transition.
After having sprayed transition paint, after after transition paint naturally dry or other drying means being used to be dried, then in mistake
It crosses and paints spray-applied primer.
The thickness of the priming paint is 30 microns, which is paint identical with transition paint.
Step 404, colored paint of the spraying with metal-like on priming paint.
The thickness of the colored paint be 12 microns, the colored paint be band just like the metal-like as the anodic oxidation of metal, have
Silver color, gold or grey can be respectively adopted according to the brand of mobile phone or the difference of model etc. in the paint of color, specific color.
Step 405 sprays UV paints on the aluminum alloy mobile phone shell ontology for sprayed colored paint.
The step is processed using CNC.
Step 406 carries out bloom chamfer machining to the seamed edge for having sprayed the aluminum alloy mobile phone shell ontology that UV is painted.
The step is processed using CNC.
Step 407 makees protection processing to the seamed edge after bloom chamfer machining.
The protection processing is specially technique for vacuum coating or anode oxidation process.
Illustratively, as follows using the detailed process flow of technique for vacuum coating：
After the special degreasing fluid of aluminium alloy is heated to 70 DEG C, dipped at degreasing fluid wiping bloom chamfering several times with cotton,
It is cleaned again with pure water, until bloom chamfering does not hang droplet totally.Then it is wiped again with alcohol one time, is fitted into vacuum coating equipment and plates
Alundum (Al2O3), silica and fingerprint proof membrane.Reach anti-fingerprint and corrosion resistant purpose.
It is as follows using the detailed process flow of anode oxidation process：
After the special degreasing fluid of aluminium alloy is heated to 70 DEG C, the aluminium alloy mobile phone shell after bloom chamfer machining is impregnated
It wherein 3~6 minutes, is cleaned later with pure water, reuses a concentration of 5% sulfuric acid activated 30~60 seconds, cleaned with pure water, carry out sun
Pole aoxidizes.Wherein, anodic oxidation condition specifically, using 200-220g/L sulfuric acid, under 18~23 DEG C, voltage 9.5V,
Reaction time is 15~20 minutes.It continues thereafter with and is cleaned with pure water, then dyed that (dyeing is selective step, if doing silver
The phone housing of color need not then carry out this step, need to carry out this if doing the phone housing of golden, grey or other colors
Step).It is cleaned again with pure water, then carries out sealing of hole (being handled 15 minutes at 90 DEG C using hole sealing agent).After being cleaned with pure water,
Water is dried up with air pressure gun, is finally dried under conditions of 60-70 DEG C.
The embodiment of the present invention four is described in detail for being molded aluminum alloy mobile phone shell outside optimization injection molding aluminum alloy casing
The color distortion of the method for sight, the injection molding aluminum alloy mobile phone shell processed using this method, parts of plastics and aluminium alloy part can
Be completely covered, from it is whole in appearance from the point of view of, phone housing as being made of metal completely, color uniformity,
It creates an aesthetic feeling, promotes the usage experience of user.
Embodiment five
The embodiment of the present invention provides a kind of injection molding metal shell, which can be used the excellent of the embodiment of the present invention
The method for changing injection molding metal shell appearance is made, and specifically includes：The injection moulding plastic in metal-back and the ontology formed, the rib of ontology
It is the chamfering with matcoveredn at side, the surface on ontology in addition to chamfering is coated with priming paint, and primed surface is coated with metallic
The colored paint of sense.
Further, it is also coated with protective paint on colored paint surface.
Further, protective paint is that transparent ultraviolet photo-curing paints.
Further, the surface on ontology in addition to chamfering and transition paint is also coated between priming paint.
Further, protective layer is vacuum coating or anodic oxide coating.
Specific implementation mode as one preferred, Fig. 5 are outside a kind of injection molding aluminium alloy that the embodiment of the present invention five provides
The partial sectional schematic view of shell, as shown, the injection molding aluminum alloy casing includes：The injection moulding plastic 2 in Al alloy shell 1 and formed
Ontology, be the chamfering 3 with matcoveredn 4 at the seamed edge of ontology, the surface on ontology in addition to chamfering 3 is coated with transition paint 5, mistake
It crosses on paint 5 and is coated with priming paint 6,6 surface of priming paint is coated with the colored paint 7 with metal-like, and 7 surface of colored paint is coated with protective paint 8.Wherein,
Protective layer 4 is vacuum coating or anodic oxide coating；Protective paint 8 paints for UV；The thickness of transition paint 5 is 20 microns, the thickness of priming paint
Degree is 30 microns, and the thickness of colored paint is 12 microns.
It is covered from figure 5 it can be seen that the junction of Al alloy shell 1 and plastic cement 2 is painted by multilayer, i.e., gradually by transition paint
5, priming paint 6, colored paint 7 and protective paint 8 cover, and the overall appearance color of shell is consistent, and can promote the aesthetics of shell.If
Think further to allow at chamfering 3 and if the color of other parts is also consistent, only needs to select color and protect when spray colored paint 7
Color as layer 4.
The injection molding metal shell that the embodiment of the present invention five provides, due on the overall surface of parts of plastics and metal part
It is integrally coated with priming paint and the colored paint with metal-like, has covered the difference of parts of plastics and metal part color, is used
The color of plastics is can't see at family in use, and the overall appearance solid colour of shell creates an aesthetic feeling, improves making for user
With experience.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (2)
1. a kind of method of optimization injection molding metal shell appearance, which is characterized in that including：
Using cotton piece buff polishing or manual grinding by the way of to above the aluminum alloy mobile phone shell ontology after injection molding parts of plastics with
Aluminium alloy part intersection carries out grinding process, wherein in aluminum alloy mobile phone shell ontology molded portion plastics for promoting hand
The effect of antenna in machine；The grinding process makes the intersection of parts of plastics and aluminium alloy part without offset；
The transition paint that injection molding aluminum alloy mobile phone shell body surface coating thickness after grinding process is 20 microns, wherein institute
The ingredient for stating transition paint includes by mass percentage：20~30% acrylic resin, 5~10% benzene kind solvent, 3~8%
Esters solvent, 10~15% alcohols solvent, 10~15% ketones solvent, 20~30% as the titanium dioxide of pigment and 10
~15% filler as auxiliary agent；
After the transition paint naturally dry on injection molding aluminum alloy mobile phone shell surface or drying, then it is 30 to paint coating thickness in transition
The priming paint of micron, wherein the priming paint is identical with the ingredient of the transition paint；
Coating thickness is 12 microns and the colored paint with metal-like on the priming paint；Wherein, the colored paint is band just like gold
Metal-like as the anodic oxidation of category, coloured paint；
Transparent ultraviolet photo-curing paint is sprayed on the aluminum alloy mobile phone shell ontology for having sprayed colored paint by numerically-controlled machine tool；
The aluminum alloy mobile phone shell ontology seamed edge for having sprayed transparent ultraviolet photo-curing paint is carried out by numerically-controlled machine tool high
Light chamfer machining；
Protection processing is made to the seamed edge after bloom chamfer machining using anode oxidation process.
2. a kind of injection molding metal shell, which is characterized in that be molded the side of metal shell appearance using optimization described in claim 1
Prepared by method, and the shell includes injection moulding plastic and the ontology that is formed in metal-back, at the seamed edge of the ontology for
The chamfering of protective layer；Surface on the ontology in addition to chamfering is coated with priming paint, and the primed surface is coated with metal-like
Colored paint；The colored paint surface is also coated with transparent ultraviolet photo-curing paint；Surface on the ontology in addition to chamfering and
Transition paint is also coated between priming paint；The protective layer is anodic oxide coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164135.6A CN104812192B (en) | 2015-04-08 | 2015-04-08 | A kind of method and injection molding metal shell of optimization injection molding metal shell appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164135.6A CN104812192B (en) | 2015-04-08 | 2015-04-08 | A kind of method and injection molding metal shell of optimization injection molding metal shell appearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104812192A CN104812192A (en) | 2015-07-29 |
| CN104812192B true CN104812192B (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510164135.6A Expired - Fee Related CN104812192B (en) | 2015-04-08 | 2015-04-08 | A kind of method and injection molding metal shell of optimization injection molding metal shell appearance |
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| Country | Link |
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| CN110049644A (en) * | 2019-04-04 | 2019-07-23 | Oppo广东移动通信有限公司 | Shell and preparation method thereof and electronic equipment |
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| CN110732954B (en) * | 2019-11-05 | 2021-07-06 | 东莞信柏结构陶瓷股份有限公司 | Method for polishing joint line between mobile phone rear cover and middle frame |
| WO2021138840A1 (en) * | 2020-01-08 | 2021-07-15 | Hewlett-Packard Development Company, L.P. | Covers for electronic devices |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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