CN108476250A - The metal frame manufacturing method of portable terminal - Google Patents
The metal frame manufacturing method of portable terminal Download PDFInfo
- Publication number
- CN108476250A CN108476250A CN201780001755.5A CN201780001755A CN108476250A CN 108476250 A CN108476250 A CN 108476250A CN 201780001755 A CN201780001755 A CN 201780001755A CN 108476250 A CN108476250 A CN 108476250A
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- CN
- China
- Prior art keywords
- injection molding
- metal body
- metal
- resin injection
- portable terminal
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- 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
-
- 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
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
-
- 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
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/243—Chemical after-treatment using organic dyestuffs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C2045/0079—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping applying a coating or covering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3431—Telephones, Earphones
- B29L2031/3437—Cellular phones
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Signal Processing (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Telephone Set Structure (AREA)
Abstract
A kind of metal frame manufacturing method the present invention relates to portable terminal includes：Metal body forming step is continuous to metal material and carries out multistage molding processing by stages, so as to be integrally formed metal body, the metal body includes constituting external whole backplate and the one side hollow frame side wall outstanding from backplate behind portable terminal；Resin injection molding step, it will be in resin injection molding portion's injection molding to metal body by insert injection molding by inserts of metal body, wherein, in metal body forming step, when carrying out multistage molding processing, it is formed around frame side wall towards lateral direction flange outstanding, the position that the antenna of portable terminal is arranged in frame side wall forms merogenesis hole, and the interconnecting piece being connect with backplate is formed in the frame side wall detached because forming merogenesis hole, injection molding is that resin injection molding portion closes merogenesis hole in resin injection molding step, interconnecting piece exposes, its method further includes：Flange cuts step, implements after resin injection molding step, and flange is removed by machining from frame side wall；Anodizing step makes it adsorb organic dyestuff to realize coloring after metal body surface carries out anodized；And interconnecting piece cuts step, implements after anodizing step, is removed the interconnecting piece exposed from resin injection molding portion by machining.
Description
Technical field
The present invention relates to a kind of metal frame manufacturing method of portable terminal, metal of this method in manufacture portable terminal
It when frame, can significantly shorten process time, reduce the usage amount of raw material, manufacturing cost is greatly reduced.
Background technology
Usually in portable terminals such as smart mobile phone, regular handset, tablet computers, in order to being installed on internal various electricity
Subassembly is protected or is fixed, and improves durability by using metal edge frame and appearance is made to seem more and increase
Shelves, it is necessary to use a kind of frame of performance shell effect.
Recently, it in order to improve the durability for being directed to external impact, and uses metal to make periphery sides frame or uses the back side
The case where whole metal frame made of metal, gradually increases.As shown in Figures 1 and 2, the iPhone series of products of Apple Inc.
The Samsung Calaxy S7 products produced recently with Samsung Electronics of South Korea use above-mentioned peripheral frame and the back side whole by
The metal frame 10 that metal is constituted.Here, front panel, display screen, battery and the various electronic units no longer to being shown in other figures
It illustrates.
As shown in figure 3, the metal frame 10 of this portable terminal 1, including：Body part 11, is made of metal material；Tree
Fat injection molding portion 12, is supported electronic unit etc..The body part 11, including：Backplate 11a constitutes portable terminal
It is whole outside the back side at end 1；Frame side wall 11b is in hollow shape, constitutes the peripheral frame of portable terminal 1.
The manufacturing method of the metal frame 10 of structure as described above, including：If iPhone is serial, by the gold with adequate thickness
Belong to the method that material forms backplate 11a and frame side wall 11b by machining from the beginning to the end；Such as registered patent bulletin
No. 10-1618694 record " metal shell making process ", backplate 11a and frame side wall 11b is fabricated separately, then by its into
The method that row mutually assembles；And " hand is processed using press moulding mode such as No. 10-2016-0108102 record of publication bulletin
Machine metal-back ", the method for making backplate 11a and frame side wall 11b be integrally formed by being molded processing.
If only manufacturing metal frame 10 by cutting, although its dimensional accuracy is higher, the characteristic of machining determines
It is difficult to produce complex-shaped product, process time is very very long, and material loss is very big.By backplate 11a and frame
The method that side wall 11b again mutually assembles it after being fabricated separately, there are assembling parts quantity is more, production efficiency is relatively low, and by
The problems such as bad incidence caused by product tolerance is higher.
These factors are just being allowed for, nearest scientific research personnel by being molded processing to making it be integrally formed metallic sheet material
Method carry out positive development activities.But when carrying out molding processing, if processed on overleaf plate 11a by being molded
Frame side wall 11b is formed, the circular portion of corner angle must should be just retained, it is prevented to be broken or rupture again.In addition, in order to
Retain the characteristic of antenna, just must form merogenesis hole in the part of setting antenna.Meanwhile in order to make the surface of metal frame 10
Color, interconnecting piece when carrying out anodization between metal how to present, be all objective reality the problem of.
Detailed description of the invention
Technical problem to be solved
To solve the above-mentioned problems, it is an advantage of the invention to provide a kind of manufactures of the metal frame of portable terminal
Method.It is molded that backplate is sent as an envoy in the manufacture of (multi-stage pressing) process and frame side wall is formed as one by multistage
Metal frame after, the metal detached when forming merogenesis hole connects, even if can be easy to if when carrying out anodization
Ground makes the surface of metal frame colour by interconnecting piece.
Other purposes, unique advantage and the novel feature of the present invention will by with attached drawing is relevant described further below and reason
Think that embodiment furthers elucidate.
The method for solving technical problem
To achieve the goals above, the metal frame manufacturing method of portable terminal of the present invention comprising：Metal body is formed
Step, and by stages progress multistage molding processing continuous to metal material, so as to it is integrally formed metal body, the metal
Ontology includes constituting backplate whole outside the portable terminal back side and the one side hollow frame outstanding from the backplate
Side wall；And resin injection molding step, resin injection molding portion is noted by insert injection molding using the metal body as inserts
Modeling is molded on the metal body, wherein in the metal body forming step, when carrying out multistage molding processing, and edge
It is formed towards lateral direction flange outstanding around the frame side wall, the portable terminal is set in the frame side wall
The position of antenna form merogenesis hole, and formed and the back of the body on the frame side wall detached because forming the merogenesis hole
The interconnecting piece of panel connection, in the resin injection molding step, injection molding is resin injection molding portion by the merogenesis
Hole is closed, and the interconnecting piece exposes, and the metal frame manufacturing method of the portable terminal further includes：Flange cuts step, in institute
It states resin injection molding step later to implement, the flange is removed by machining from the frame side wall；Anodization
Step makes it adsorb organic dyestuff to realize coloring after the surface of the metal body carries out anodized；And
Interconnecting piece cuts step, implements after the anodizing step, will be exposed from resin injection molding portion by machining
The interconnecting piece remove.
In addition, the metal frame manufacturing method of portable terminal of the present invention, further includes：Surface treatment step, in the metal
Implement between ontology forming step and resin injection molding step, the metal body is surface-treated, described in raising
The binding force in resin injection molding portion and the metal body.
In addition, the metal frame manufacturing method of portable terminal of the present invention, in the surface treatment step, to the metal
Body surface is implemented to increase the processing of oxygen content, to be formed containing aerobic oxygen-containing epithelium, in the resin injection molding step
In, resin injection molding portion is as thermoplastic resin composition, containing additive compound, the additive compound contain with
The functional group that the oxygen-containing epithelium reacts, the additive compound contain from by carboxyl and its salt and its ester, epoxy
Selected in the group that base, glycidyl, isocyanate group, carbodiimide, amino and its salt, anhydride group and its ester are constituted to
Few a kind of functional group.
In addition, the metal frame manufacturing method of portable terminal of the present invention, further includes：Sandblasting step is cut in the flange
Implement between step and anodizing step, so that the metal body surface becomes more beautiful.
Invention effect
The metal frame manufacturing method of portable terminal according to the present invention, by multistage mold pressing procedure produce backplate and
After the metal frame that frame side wall is formed as one, make to be realized between the metal that is detached when ensuring that antenna performance forms merogenesis hole
It is connected to each other.Even if easily can realize that the surface of metal frame by interconnecting piece if as a result, when carrying out anodization
Color.
Description of the drawings
Fig. 1 and 2 is the exploded perspective view that diagram lists the smart mobile phone used recently；
Fig. 3 be schematic thinking 1 and 2 embodiment in metal frame stereogram；
Fig. 4 is the flow chart of the one embodiment for indicating portable terminal metal frame manufacturing method according to the present invention；
Fig. 5 is the stereogram for the metal body for indicating that the embodiment metal body forming step by Fig. 4 is formed；
Fig. 6 is to amplify standing for the metal body major part that portable terminal antenna is provided in the embodiment for indicating Fig. 5
Body figure；
Fig. 7 is indicated resin injection molding portion's injection molding to metal sheet through the embodiment resin injection molding step of Fig. 4
The stereogram of state is integrally formed on body；
Fig. 8 is to amplify standing for the metal body major part that portable terminal antenna is provided in the embodiment for indicating Fig. 7
Body figure；
Fig. 9 is the stereogram for indicating to cut the metal body that step cuts flange by the embodiment flange of Fig. 4；
Figure 10 is to amplify standing for the metal body major part that portable terminal antenna is provided in the embodiment for indicating Fig. 9
Body figure；
Figure 11 is to amplify in the embodiment for indicating Fig. 4 to cut the metal body master that step cuts interconnecting piece by interconnecting piece
Want the stereogram of part；
Figure 12 is the flow chart for indicating another embodiment of portable terminal metal frame manufacturing method according to the present invention.
Specific implementation mode
The desirable embodiment of portable terminal metal frame manufacturing method is described in detail next, with reference to attached drawing.
First, as shown in figure 4, portable terminal metal frame manufacturing method according to the present invention, including：Metal body is formed
Step S100, resin injection molding step S200, flange cutting step S300, anodizing step S400, interconnecting piece cutting step
Rapid S500 can also include as shown in figure 12：Surface treatment step S150, sandblasting step S350.
Metal body forming step S100 is illustrated next, with reference to Fig. 1~Fig. 3, as shown in Figures 5 and 6, at this
In one step, and by stages progress multistage molding processing continuous to metal material, so that it includes to constitute just to be integrally formed
Take backplate 110 whole outside 1 back side of formula terminal and the one side hollow frame side wall 120 outstanding from the backplate 110
Metal body 100.
In above-mentioned metal body forming step S100, when carrying out multistage molding processing, around the frame side wall 120
It is formed towards lateral direction flange 130 outstanding, the antenna that the portable terminal 1 is arranged in the frame side wall 120 (is not schemed
Show) position on form merogenesis hole 140, and formed on the frame side wall 120 detached because forming merogenesis hole 140
There is the interconnecting piece 150 being connect with the backplate 110.
If directly only forming backplate 110 and frame side wall 120 by existing molding is processed, thickness can not be formed
Degree and the certain frame side wall 120 of height, while the bad incidence that can also improve round corners rupture or fracture etc..For
It solves the above problems, as shown in Figures 5 and 6, is formed with around frame side wall 120 towards lateral direction flange 130 outstanding,
The flange 130 supplements thickness and the material of amount of height when forming frame side wall 120, and in molding (pressi ng) up and down
On mold, backplate 110 and the progress of flange 130 position are fixed on the basis of frame side wall 120, to contribute to accurate landform
At frame side wall 120.
In addition, for the antenna (not shown) of portable terminal 10, as a kind of device of transmission electric wave, recently
It is fast-developing with the prosperity of wireless communication technique, show more miniaturization and light-weighted trend.In the early stage, generally all
Use externally positioned type antenna, that is, helical antenna, monopole antenna, sleeve-dipole antenna (sleeve-dipole antenna) etc..
But recently, mainly by built-in antenna, that is, PIFA (Planer Inverted F Antenna), small loop antenna (small
Loop antenna), antenna component (chip antenna), SMD antennas and DRA etc. be mounted on inside portable terminal 10, with
Embody antenna performance.For smart mobile phone, this built-in antenna is mainly used, as described herein, when being installed
When on metal body 100, if completely enclosed by metal body 100, the transmission characteristic that may result in antenna declines.To understand
Certainly this problem is formed with opening portion on the metal body 100 of installation antenna, and by aftermentioned resin injection molding portion 200 into
Row closing.In this case, just opening portion must be all around formed in the position court of installation antenna, therefore there are metal sheets
The necessary problem to be separated of body 100.
In the case where the metal body 100 detaches, so that it may its each section not to be fabricated separately, but pass through multistage
Molding makes and will be integrally formed, while can form opening portion in the position for installing above-mentioned antenna.In addition, to ensure aftermentioned
Each metal part is set to keep connection status, metal body 100 that there is the flange 130 and divide in anodizing step S400
Knothole 140 and interconnecting piece 150.That is, flange 130 when forming merogenesis hole 140 by merogenesis hole 140 on the basis of ensure that metal part exists
It is attached under unseparated state, and even if being removed after resin injection molding step S200, resin injection molding portion
200 can also fill merogenesis hole 140, to play the effect for making to be bonded to each other.In addition, for interconnecting piece 150, play with
Lower effect, in separation on the basis of the metal when carrying out anodization processing between metal part is combined by merogenesis hole 140
Under state, separately makes to keep metal bonding state between metal part by interconnecting piece 150, electric current can be passed through, to ensure
It can easily carry out being removed after anodization processing.
As shown in Figures 5 and 6, to guarantee to be formed backplate 110, frame side wall 120, flange 130, merogenesis hole 140
And interconnecting piece 150, after forming the metal body 100 with above structure by multistage molding processing, then executes resin and be molded into
Type step S200.
That is, in resin injection molding step S200, it is inserts with the metal body 100, passes through insert injection molding
It will be in 200 injection molding to the metal body 100 of resin injection molding portion.In this case, resin injection molding portion 200 is according to can
The design shape injection molding that various electronic units etc. are fixed.In particular, as shown in Figures 7 and 8, the resin injection molding
Portion 200 is according to the shape injection molding for closing and the interconnecting piece 150 is made to expose the merogenesis hole 140.Resin injection molding portion 200
The reason of 140 closed shape injection molding of merogenesis hole, to be, it is ensured that even if cutting step S300 by aftermentioned flange
In the case that flange 130 is removed, it can also make to keep connection knot between the metal part detached on the basis of merogenesis hole 140
It closes, and the resin injection molding portion 200 being packed into merogenesis hole 140 can ensure the antenna performance of portable terminal 1.Separately
Outside, resin injection molding portion 200 is so that the shape that interconnecting piece 150 exposes is the reason of injection molding, in order to by aftermentioned
Interconnecting piece cutting step S500 easily removes interconnecting piece 150.
In addition, as shown in figure 12, between the metal body forming step S100 and resin injection molding step S200
Surface treatment step S150 is executed, in surface treatment step S150, in order to improve resin injection molding portion 200 and the metal
The binding force of ontology 100 is surface-treated the metal body 100.Specifically, surface treatment is to improve with metal
The binding force in the resin injection molding portion 200 that the metal body 100 of material is obtained as inserts and by injection molding, may be used logical
It crosses concave shape and convex shape carries out the inserted mode of mechanicalness insertion, can also use by etching changes such as (etching)
Learn the binding force between the metal body 100 and resin injection molding portion 200 of processing raising metal material.
In the present invention, in order to keep binding force between the metal body 100 of metal material and resin injection molding portion 200 maximum
Change, form oxygen-containing epithelium on the surface of metal body 100, and resin injection molding portion 200 is made to contain additive compound, with
The functional group that oxygen-containing epithelium reacts, so as to obtain the powerful binding force between two kinds of unlike materials.That is, at surface
It manages in step S150, the surface of the metal body 100 formed by the metal body forming step S100 is implemented to increase
Add the processing of oxygen content, to be formed containing aerobic oxygen-containing epithelium.In this case, in the resin injection molding step
In S200, resin injection molding portion 200 is used as thermoplastic resin composition, containing with reacting with the oxygen-containing epithelium
The additive compound of functional group.The additive compound have from by carboxyl and its salt and its ester, epoxy group, shrink it is sweet
What oil base, isocyanate group, carbodiimide (carbodiimide group), amino and its salt, anhydride group and its ester were constituted
At least one kind of functional group selected in group.
In the surface treatment step S150, increase oxygen content as the surface of the metal body 100 is made to shape
At the processing method of oxygen-containing epithelium, including：The first, film containing rolled tin is formed, i.e., metal body 100 is immersed in containing zinc ion
In sodium solution, passes through flushing later and form a kind of film containing rolled tin containing Zn-ef ficiency as its oxygen-containing epithelium on surface；The second, logical
It crosses hydrothermal solution and forms hydrous oxide epithelium；Third forms hydrous oxide epithelium by warm water；And the 4th, pass through laser treatment
Oxide epithelium is formed, i.e., is handled by laser-induced thermal etching (etching) and forms oxide epithelium on the surface of metal body 100.
It will be used as inserts by the metal body 100 for being surface-treated and forming oxygen-containing epithelium, and is obtained by injection molding
As the resin injection molding portion 200 containing additive compound of the thermoplastic resin composition, the additive compound band
There is the functional group to react with the oxygen-containing epithelium, the firm binding force thus to obtain strength.
Fig. 7 and shown in Fig. 8 is formed by metal body forming step S100 and resin injection molding step S200 as a result,
Then metal body 100 and resin injection molding portion 200 will be removed as 100 finished goods of the metal body without necessary part.
Then, in order to be coloured, aftermentioned flange cutting step S300, anodizing step S400 and interconnecting piece cutting step are executed
S500。
Flange cutting step S300 is executed after the resin injection molding step S200, and the flange 130 is in resin
Injection molding portion 200 terminates the function that each metal part is attached due to the formation in resin injection molding portion 200 before being formed, will
The flange 300 is removed by machining from the frame side wall 120.As a result, as shown in FIG. 9 and 10, it is cut by flange
Step S300 is cut by after the removing of flange 300, the global shape in addition to interconnecting piece 150 is just identical as finished goods.
Then, in order to plate ideal face to cutting step S300 by flange and remove the metal body 100 of flange 300
Color, and then execute anodizing step S400.In anodizing step S400, the surface of the metal body 100 is carried out
After anodized, it is made to adsorb organic dyestuff, to realize coloring.Anodized, that is, anodization, referring to will be golden
Belong to ontology 100 and be used as anode, and after being immersed in the aqueous solutions such as the sulfuric acid as electrolyte, nitric acid, being electrified stream makes sun
Pole, that is, metal body 100 generates oxygen by electrolysis, then the oxygen makes component aoxidize, to form oxide scale film on surface,
The epithelium in solution and acid environment even when exposed to that will not dissolve, so as to protect metal.In addition, if thus giving birth to
At epithelium on adsorb organic dyestuff, it will be able to a variety of ideal colors are presented.
In the anodizing step S400, need metal body 100 as anode and stream is electrified, thus if
It is separated into different metal parts by merogenesis hole 140, then each metal part must just be respectively formed " pole ", thus more numerous
It is trivial.In order to solve this problem, even if can be incited somebody to action by interconnecting piece 150 if being separated into different metal parts by merogenesis hole 140
It is connected between each metal part, it is ensured that current flowing can be made each other.The interconnecting piece 150 is to be able to smoothly
The component for executing anodizing step S400 and designing can cut step S500 by aftermentioned interconnecting piece and remove.
In addition, as shown in figure 12, before executing the anodizing step S400, in order to make 100 surface of metal body
Become more beautiful, it is possible to implement sandblasting step S350.That is, sandblasting step S350 cuts step S300 and anode in the flange
It is executed between plating step S400, blasting treatment is carried out in order to make 100 surface of the metal body become more beautiful.Sandblasting
Exactly sand is mixed into high pressure water to the surface of metal body 100 and is sprayed, to which the dirty part such as dust or grease is clear
It removes, and increases intensity, surface is made to become very beautiful.
After having plated ideal color to metal body 100 by the anodizing step S400, it need to will only connect
Socket part 150 removes, you can forms finished goods.Therefore, interconnecting piece cutting step S500 is finally executed.Interconnecting piece cuts step S500
It is executed after the anodizing step S400, the company that will be exposed from resin injection molding portion 200 by machining
Socket part 150 removes.
As described above, the metal frame manufacturing method of portable terminal according to the present invention, is manufactured by multistage mold pressing procedure
After going out the metal frame that backplate 110 and frame side wall 120 are formed as one, make to ensure that antenna performance forms merogenesis hole 140
When the metal that detaches between realize and be connected to each other.Even if can easily pass through connection if as a result, when carrying out anodization
Realize the surface coloring of metal frame in portion 150.
In the above description, the embodiment of the present invention shown in the drawings does not limit the technological thought of the present invention.The present invention's
Protection domain is only limited by item described in claim.By above description, there is technical field one
As the technical staff of knowledge the technological thought of the present invention can be improved according to variform, be changed completely.Therefore, as long as
The improvement and change are self-evident for the technical staff with technical field general knowledge, are just all belonged to
In protection scope of the present invention.
Claims (4)
1. a kind of metal frame manufacturing method of portable terminal, which is characterized in that including：
Metal body forming step, and by stages progress multistage molding processing continuous to metal material, so that the one bodily form
At metal body, the metal body includes：Constitute backplate whole outside the portable terminal back side；And from the backplate
One side hollow frame side wall outstanding；And
Resin injection molding step, using the metal body as inserts by insert injection molding by resin injection molding portion's injection molding
Onto the metal body, wherein
In the metal body forming step, when carrying out multistage molding processing, court is formed around the frame side wall
Lateral direction flange outstanding, the position that the antenna of the portable terminal is arranged in the frame side wall form merogenesis hole,
And the interconnecting piece being connect with the backplate is formed on the frame side wall detached because forming the merogenesis hole,
In the resin injection molding step, injection molding is that resin injection molding portion closes the merogenesis hole, the company
Socket part to exposing outside,
The metal frame manufacturing method of the portable terminal further includes：
Flange cuts step, implements after the resin injection molding step, by the flange by machining from described
Frame side wall removes；
Anodizing step makes it adsorb organic dyestuff after the surface of the metal body carries out anodized, to
Realize coloring；And
Interconnecting piece cuts step, implements after the anodizing step, will be from resin injection molding portion by machining
The interconnecting piece exposed removes.
2. the metal frame manufacturing method of portable terminal according to claim 1, which is characterized in that further include：
Surface treatment step is implemented between the metal body forming step and resin injection molding step, to the metal
Ontology is surface-treated, to improve the binding force in resin injection molding portion and the metal body.
3. the metal frame manufacturing method of portable terminal according to claim 2, it is characterised in that：
In the surface treatment step, implements the processing for increasing oxygen content to the metal body surface, contain to be formed
The oxygen-containing epithelium of oxygen,
In the resin injection molding step, additive is contained as thermoplastic resin composition in resin injection molding portion
Close object, which contains the functional group to react with the oxygen-containing epithelium, the additive compound contain from
By carboxyl and its salt and its ester, epoxy group, glycidyl, isocyanate group, carbodiimide, amino and its salt, anhydride group
And its at least one kind of functional group selected in the group of ester composition.
4. the metal frame manufacturing method of portable terminal according to claim 1, which is characterized in that further include：
Sandblasting step cuts in the flange and implements between step and anodizing step, so that the metal body surface becomes
It obtains more beautiful.
Applications Claiming Priority (3)
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| KR10-2016-0145384 | 2016-11-02 | ||
| KR1020160145384A KR101857366B1 (en) | 2016-11-02 | 2016-11-02 | Method for manufacturing metal frame for portable terminal |
| PCT/KR2017/011187 WO2018084443A1 (en) | 2016-11-02 | 2017-10-11 | Method for manufacturing metal frame for mobile terminal |
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| CN108476250A true CN108476250A (en) | 2018-08-31 |
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| KR (1) | KR101857366B1 (en) |
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| CN108697014A (en) * | 2018-06-30 | 2018-10-23 | Oppo广东移动通信有限公司 | Method for producing shell, shell and electronic equipment |
| KR102617370B1 (en) * | 2018-11-08 | 2023-12-26 | 삼성전자주식회사 | An electronic device comprising a housing including a plurality of layers |
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| CN104540364A (en) * | 2014-12-30 | 2015-04-22 | 天津三星通信技术研究有限公司 | Electronic device shell assembly and manufacturing method thereof |
| KR20150082005A (en) * | 2014-01-07 | 2015-07-15 | 인탑스 주식회사 | Composite molding apparatus of press and injection and composite molding method |
| KR101571289B1 (en) * | 2015-05-14 | 2015-11-24 | 후이저우 유-원 포유 컴퍼니 리미티드 | manufacturing method of metal case for mobile terminal and metal case for mobile terminal using the same |
| CN105120625A (en) * | 2015-07-31 | 2015-12-02 | 广东欧珀移动通信有限公司 | Method for machining metal casing, metal casing and electronic equipment |
| CN105979025A (en) * | 2015-03-06 | 2016-09-28 | 爱斯特技术开发有限公司 | Metal case for portable phone formed through press process and method of manufacturing the same |
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| DE9109072U1 (en) * | 1991-07-23 | 1991-10-24 | Siemens Ag, 8000 Muenchen, De | |
| JPH0639876A (en) * | 1992-05-22 | 1994-02-15 | Fujitsu Ltd | Method for in-mold molding and thin-wall box using it |
| KR101420614B1 (en) * | 2012-12-28 | 2014-07-28 | 주식회사 우전앤한단 | Exterior case for mobile device |
| KR101667885B1 (en) * | 2015-07-24 | 2016-10-19 | 신영주 | Forging Die for Metal Plate of Portable terminal and Manufacturing Method of Metal Plate of Portable using the same and Metal Plate of Portable terminal thereof |
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- 2016-11-02 KR KR1020160145384A patent/KR101857366B1/en active IP Right Grant
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2017
- 2017-10-11 WO PCT/KR2017/011187 patent/WO2018084443A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20150082005A (en) * | 2014-01-07 | 2015-07-15 | 인탑스 주식회사 | Composite molding apparatus of press and injection and composite molding method |
| CN104540364A (en) * | 2014-12-30 | 2015-04-22 | 天津三星通信技术研究有限公司 | Electronic device shell assembly and manufacturing method thereof |
| CN105979025A (en) * | 2015-03-06 | 2016-09-28 | 爱斯特技术开发有限公司 | Metal case for portable phone formed through press process and method of manufacturing the same |
| KR101571289B1 (en) * | 2015-05-14 | 2015-11-24 | 후이저우 유-원 포유 컴퍼니 리미티드 | manufacturing method of metal case for mobile terminal and metal case for mobile terminal using the same |
| CN105120625A (en) * | 2015-07-31 | 2015-12-02 | 广东欧珀移动通信有限公司 | Method for machining metal casing, metal casing and electronic equipment |
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| KR101857366B1 (en) | 2018-05-14 |
| KR20180048159A (en) | 2018-05-10 |
| WO2018084443A1 (en) | 2018-05-11 |
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