CN107295772B - A kind of communication apparatus metal shell and its preparation method and application - Google Patents
A kind of communication apparatus metal shell and its preparation method and application Download PDFInfo
- Publication number
- CN107295772B CN107295772B CN201610204155.6A CN201610204155A CN107295772B CN 107295772 B CN107295772 B CN 107295772B CN 201610204155 A CN201610204155 A CN 201610204155A CN 107295772 B CN107295772 B CN 107295772B
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- metal shell
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- communication apparatus
- layer
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Classifications
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- 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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/04—Metal casings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Signal Processing (AREA)
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The present invention relates to metal shell field, a kind of communication apparatus metal shell and its preparation method and application is disclosed, the preparation method of metal shell of the invention includes: 1) to be molded to form the plastic layer at least one slit in the inner surface of metal shell；2) decorative layer is formed in the outer surface of metal shell；3) protective layer is formed in the outer surface of the decorative layer；4) the corresponding metal shell from the slit is etched from the inner surface of metal shell, runs through the metal shell at the slit；5) colloid filling member is formed at the slit；6) protective layer is removed.Its antenna slot appearance of communication apparatus metal shell provided by the invention is invisible, and metal shell is apparent clean and tidy smooth, whole to have continuity, and metal-like is obvious.
Description
Technical field
The present invention relates to metal shell fields, and in particular, to a kind of communication apparatus metal shell and preparation method thereof and
Using.
Background technique
Antenna for mobile phone is the equipment on mobile phone for receiving signal, and smart phone is mostly built-in antenna at present, this requires
Cell phone rear cover cannot play shielding action to signal.This problem is not present in plastic shell mobile phone, for the popular gold risen
Belong to shell mobile phone, how to solve the problems, such as that signal shielding is the key that one of its design and manufacture.
Currently, metallic mobile phone mostly uses Kaitian's wire casing and the method being molded solves the problems, such as that its airframe signal shields, such as HTC
The two strip antenna slot up and down of ONE, side antenna slot of iPhone 5/5S etc..The above-mentioned prior art in antenna slot by filling out
The shielding that plastics carry out anti-stop signal is filled, but certain destruction is caused to metallic mobile phone fuselage overall structure, affects its appearance
Whole cleaning and continuity.The visible plastics of shell can also destroy the bulk metal texture of fuselage simultaneously.
Summary of the invention
It is an object of the invention to overcome above-mentioned problems of the prior art, a kind of communication apparatus metal shell is provided
And its preparation method and application.Its antenna slot appearance of communication apparatus metal shell provided by the invention is invisible, metal shell table
Sight is clean and tidy smooth, whole to have continuity, and metal-like is obvious.
To achieve the goals above, the present invention provides a kind of preparation method of communication apparatus metal shell, wherein this method
The following steps are included:
1) it is molded to form the plastic layer at least one slit in the inner surface of metal shell；
2) decorative layer is formed in the outer surface of metal shell；
3) protective layer is formed in the outer surface of the decorative layer；
4) the corresponding metal shell from the slit is etched from the inner surface of metal shell, makes the institute at the slit
Metal shell is stated to run through；
5) colloid filling member is formed at the slit；
6) protective layer is removed.
The present invention also provides one kind to pass through communication apparatus metal shell obtained by the above method.
The present invention also provides above-mentioned preparation methods to prepare the application in communication apparatus metal shell.
The communication apparatus metal shell antenna slot appearance obtained by means of the present invention is invisible, and metal shell surface layer is not
Once it was destroyed, apparent clean and tidy smooth, whole continuity, metal-like are substantially better than existing scheme.In addition, the metal shell
Hardness, wear-resisting, antidetonation and corrosion resisting property are significantly increased.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the communication apparatus metal shell of the preparation of preparation method described in the embodiment of the present invention 1.
Description of symbols
1, metal shell 2, plastic layer 3, decorative layer
4, colloid filling member
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of preparation method of communication apparatus metal shell, wherein method includes the following steps:
1) it is molded to form the plastic layer at least one slit in the inner surface of metal shell；
2) decorative layer is formed in the outer surface of metal shell；
3) protective layer is formed in the outer surface of the decorative layer；
4) the corresponding metal shell from the slit is etched from the inner surface of metal shell, makes the institute at the slit
Metal shell is stated to run through；
5) colloid filling member is formed at the slit；
6) protective layer is removed.
In the present invention, the communication apparatus for example can be with are as follows: mobile phone, tablet computer, laptop, bluetooth headset,
Router or bracelet etc..
In the present invention, when the inner surface of the metal shell is defined as being used in communication apparatus, metal shell court
To the surface inside communication apparatus.It is understood that when the outer surface of metal shell is defined as being used in communication apparatus,
Surface of the metal shell towards the external world.In addition, the surfaces externally and internally for being used to prepare the metal shell of metal shell be also applied for it is above-mentioned
Definition.
In the present invention, the material of the metal shell can for commonly used in the art for the various metals of communication apparatus,
It such as can be aluminium alloy, stainless steel, magnesium alloy or titanium alloy etc..
In the present invention, there is no particular limitation for the thickness of the metal shell, and those skilled in the art can be according to tool
The communication apparatus of body is suitably selected.Such as the thickness of the metal shell can be 0.1-1mm, preferably 0.2-
0.3mm。
It is first molded in metallic interior surface due to of the invention, can be used relatively thin metal shell, such as can be with
Use the metal shell with a thickness of 0.2-0.3mm.
In the present invention, there is no particular limitation for the mode being molded in the inner surface of metal shell, such as the note
Modeling can be molded using vertical injection molding machine.
According to the present invention, in order to improve the compactness of plastic layer and metal shell that injection molding obtains, the metal improved
The intensity of shell carries out roughening treatment to the injection surface in injection molding region preferably before the injection molding.
According to the present invention, the coarsing processing method is preferred are as follows: at 10-35 DEG C, by the inner surface of metal shell with it is dense
The hydrochloric acid solution that degree is 2-20 weight % contacts 1-5min, then takes out metal shell, impregnates 1-5min into the water；It repeats
Aforesaid operations 2-10 times.
By above-mentioned roughening treatment, at least there can be multiple micro- holes in the inner surface of the metal shell, so as to mention
The compactness of plastic layer and metal shell that height injection molding obtains.
The material that above-mentioned injection molding uses can be resin commonly used in the art, for example, can be selected from polyethylene, polypropylene,
Polyacetals, polystyrene, Noryl, polyethylene terephthalate, polybutylene terephthalate (PBT), poly- naphthalene diformazan
Sour ethylene glycol it, polyphenylene sulfide, polyimides, polyamidoimide, polyetherimide, polysulfones, polyether sulfone, polyether-ketone, polyethers
One of ether magnesium, polycarbonate, polyamide and acrylonitrile-butadiene-styrene copolymer are a variety of.
For the mechanical strength of the plastic layer further increased, the material that preferably above-mentioned injection molding uses is above-mentioned resin
With the mixture of glass fibre.It is further preferred that in said mixture, the resin be selected from polyphenylene sulfide, polycarbonate,
One of polyamide；On the basis of the weight of the mixture, the content of the glass fibre is 1-50 weight %.
According to the present invention, the condition of the injection molding can be condition commonly used in the art.It is excellent in of the invention one
It is described to be molded into nanometer injection molding in the embodiment of choosing, it is preferable that the condition of the injection molding includes: that mould temperature is 50-300 DEG C, spray
Mouth temperature is 200-450 DEG C, dwell time 1-50s, and injections pressure is 50-300MPa, and the injection time is 1-30s, when delay
Between be 1-30s, cooling time 1-60s.
According to the present invention, in step 1), there is no particular limitation for size, the number and shape of the slit, can basis
Its specific application is to select (such as antenna slot slit).Preferably, the width of the slit is 1-10mm, preferably 1-
5mm；The length of the slit is 10-100mm.
The shape of the slit can be linear, curved shape, square wave is linear or sawtooth is linear, preferably linear.Make
Item number for the slit can be 1-20 item, preferably 1-6 item.
In order to further increase the hardness, wear-resisting, antidetonation and corrosion resisting property of metal shell, in step 2), the formation dress
The step of adoring layer can be for selected from anodic oxidation, hard anodizing, enamelled anodizing, differential arc oxidation, spraying, electrophoresis, physics
Be vapor-deposited one of (PVD) and chemical vapor deposition (CVD) or a variety of.As anodic oxidation, hard anodizing, porcelain
Anodic oxidation, differential arc oxidation, spraying and electrophoresis method and condition can be method and condition commonly used in the art, specifically
Ground can use following conditions.
As the anodic oxidation, condition can be with are as follows: anodizing solution is the sulfuric acid of 180-200g/L, and anode voltage is
13-20V, temperature are 10-21 DEG C, oxidization time 30-60min.
As the hard anodizing, condition can be with are as follows: temperature is 5-12 DEG C, time 20-80min, impulse wave
Type is positive square-wave pulse, duty ratio 30-99%, frequency 100-1000Hz, current density 2-8A/dm2, wherein oxygen
Change liquid to be made of sulfuric acid, oxalic acid and water, in terms of 1L oxidation solution, the content of sulfuric acid is 120-220g, and the content of oxalic acid is 8-20g,
Surplus is water.
As the enamelled anodizing, condition can be with are as follows: electrolyte is 40-50g/L titanium potassium oxalate, 1-4g/L grass
Acid, 6-10g/L boric acid, 0.5-2g/L citric acid, voltage 80-120V, oxidization time 30-60min, oxidizing temperature 30-
60℃。
As the differential arc oxidation, condition can be with are as follows: electrolyte is 0.02-0.05mol/L sodium metasilicate and 0.03-
0.07mol/L sodium hydroxide, oxidizing temperature are 15-35 DEG C, and oxidation forward voltage is 400-600V, oxidization time 20-
100min。
As the spraying, method can be with are as follows: in one or more layers resistance to highly basic of the spraying of product surface, etching solution is rotten
The organic or inorganic object coating of 40min or more is lost, coating layer thickness can control at 10-50 μm.As the organic or inorganic object,
It can be for selected from one of epoxy resin, polyester resin, acrylic resin and polyurethane resin or a variety of.
As the electrophoresis, condition can be with are as follows: electrophoretic paint is dumb light paint WNO-1: polish lacquer NNO-4=7:3, solid content
For 9-14%, temperature is 28-32 DEG C, voltage 30-200V, time 1-3min, pH value 7-9.
According to the present invention, above-mentioned anodic oxidation, hard anodizing, enamelled anodizing, differential arc oxidation, electrophoresis, PVD,
During CVD, the inner surface of the metal shell forms the decorative layer in order to prevent, before carrying out step 2), preferably uses
Slit section described in the metal shell medial surface is bonded by adhesive tape.
According to the present invention, there is no particular limitation for the thickness of the decorative layer, and the shell appearance after capable of guaranteeing injection molding is
Complete entirety.The thickness of the decorative layer for example can be 1-100 μm, preferably 10-40 μm.
According to the present invention, decorative layer is damaged in subsequent etching step in order to prevent, is needed before step 4), is carried out
The operation of step 3), that is, forming protective layer in the outer surface of the decorative layer.
It according to the present invention, can be the conventional method of this field as the method for forming the protective layer.Such as can be
Ink layer is formed in the surface coating printing ink of the decorative layer, or to put up adhesive tape.It can be for purchased from depth as the ink
It the 5680 of Science and Technology Co., Ltd. is UV ink that ditch between fields Wan Jiayuan, which refines, and the method for the coating is not particularly limited, and can adopt
With the conventional methods in the field, the protective layer is formed.It can be High temperature-resistanadhesive adhesive tape or acid and alkali-resistance glue as the adhesive tape
Band etc..
According to the present invention, after the outer surface of the decorative layer forms above-mentioned protective layer, from the inner surface of metal shell
The corresponding metal shell at the slit is etched, the metal shell at the slit is run through.
As the method and steps of the etching, there is no particular limitation, as long as can reach the institute etched at the slit
State the purpose of metal shell, it is preferable that described to be etched to chemical etching or chemical etching, more preferably described being etched to
Learn etching.Specifically, the chemical etching can select acidic etching liquid or alkaline etching liquid.As the acid etching
Liquid, ingredient can be with are as follows: the solution being made by 550-600g ferric trichloride, 30-50g hydrochloric acid and 100g water, etching condition can be with
Are as follows: temperature is 15-45 DEG C (preferably 25-35 DEG C), etching period 10-30min；As the alkaline etching liquid, ingredient
It can be with are as follows: the aqueous solution containing 50-60g/L sodium hydroxide, 50-60g/L sodium carbonate and 50-60g/L sodium nitrate, etching condition can
With are as follows: temperature is 15-45 DEG C (preferably 25-35 DEG C), etching period 20-60min.
According to the present invention, 4) the corresponding metal shell at the slit can be made to be etched simultaneously through the above steps
Manifest decorative layer.In turn, colloid filling member is formed at the slit.The colloid filling member can be by the slit
It fills glue and solidifies and obtain in place.By forming the colloid filling member, can reach improve metal shell hardness, it is wear-resisting,
The purpose of antidetonation and corrosion resisting property.
It can be various glue commonly used in the art as the glue, such as can be UV solidified glue, heat-curable glue
Water or moment glue etc..It is preferably the UV solidified glue for being purchased from 3211 models of Le Tai company as the UV solidified glue.
It as cured condition can be the condition of this field routine, such as can be ultraviolet photo-curing, be heating and curing
Or anaerobic curing etc..
According to the present invention, in step 6), when the protective layer is ink layer, the method for removing the protective layer can be with
The ink layer is stripped to be impregnated with paint stripper.It can be for purchased from the surface treatment of four brightness of Dongguan City as the paint stripper
The neutral paint stripper of the SH-665 model of Science and Technology Ltd..
When the protective layer is adhesive tape according to the present invention, the method for removing the protective layer can be to remove the adhesive tape.
The present invention also provides a kind of communication apparatus metal shells of above-mentioned preparation method preparation.
The present invention additionally provides a kind of above-mentioned preparation methods to prepare the application in communication apparatus metal shell.
The present invention will be described in detail by way of examples below, but the present invention is not limited in following embodiments.
Embodiment 1
The present embodiment is used to illustrate the preparation method of communication apparatus metal shell provided by the invention.
1) it is molded
In the interior table of metal shell 1 (Al-alloy casing is purchased from Nan Ping Chinalco, the trade mark 5052, with a thickness of 0.2mm)
Face carries out nanometer and is molded to form plastic layer 2, and the material of injection molding is polyphenylene sulfide (PPS) and glass fibre (weight ratio PPS: glass
Fiber=2:1), the condition of injection molding are as follows: mould temperature is 140 DEG C, and nozzle temperature is 300 DEG C, dwell time 7s, projects pressure and is
200MPa, the injection time be 6s, delay time 15s, cooling time 10s.120 DEG C of annealing 1.5h are carried out after demoulding is cooling.
The slit of formation is linear, and item number is 3, length 6cm, width 1mm, and the spacing between adjacent two slits is 5mm.
2) anodizing forms decorative layer
With adhesive tape (the green silicone protective film for being purchased from the GHT2545G model of Shenzhen company, Xi Meng spy Electronics Co., Ltd.)
The inner surface slit section of metal shell is bonded, anodic oxygen is carried out to the metal shell 1 for being formed with plastic layer 2 in step 1)
Change, electrolyte is 190g/L sulfuric acid, the condition of anodic oxidation are as follows: temperature is 19 DEG C, voltage 15V, time 40min, organic
Dyeing, and sealing of hole 20min, to form the decorative layer 3 with a thickness of 15 μm.
3) protective layer is formed
Spraying 5680 is that UV ink (is purchased from Shenzhen Wan Jiayuan to refine science and technology in the decorative layer 3 of the outer surface of metal shell 1
Limited liability company) after, after then toasting 25min at 80 DEG C, carrying out uv-exposure, (conditions of exposure is time 2min, ultraviolet
Luminous intensity is 800mJ/cm2), the UV ink protective layer with a thickness of 20 μm is consequently formed.In addition, by the inner surface of metal shell 1
The adhesive tape of slit section fitting removes.
4) it etches
The metal shell at the inner surface slit of metal shell 1 is etched using acidic etching liquid, the group of etching solution
As 550g ferric trichloride, 40g hydrochloric acid, 100g water, the condition of etching are as follows: temperature is 25 DEG C, etching period 19min；It obtains
Metal shell 1 at the slit is run through and manifests the metal shell 1 of decorative layer.
5) colloid filling member is formed
The recess portion and slit formed will be etched using UV solidified glue (being purchased from Le Tai company, 3211 models) in step 4)
It is filled, is then 800mJ/cm in ultraviolet ray intensity2Under conditions of solidified, formed colloid filling member 4.
6) protective layer is removed
Utilizing neutral paint stripper soaking step 5) ink of obtained metal shell to spray in step 3) strips, obtains
To metal shell.Neutral paint stripper is the depainting that the SH-665 model of Science and Technology Ltd. is surface-treated purchased from four brightness of Dongguan City
Agent, soaking time 15min.
Embodiment 2
The present embodiment is used to illustrate the preparation method of communication apparatus metal shell provided by the invention.
Communication apparatus metal shell is prepared using the method for embodiment 1, unlike, hard anodic oxygen is used in step 2)
The decorative layer that the method for change is formed with a thickness of 45 μm.Hard anodizing condition: temperature is 10 DEG C, time 40min, impulse wave
Type is positive square-wave pulse, duty ratio 80%, frequency 800Hz, current density 5A/dm2, wherein oxidation solution by sulfuric acid,
Oxalic acid and water composition, in terms of 1L oxidation solution, the content of sulfuric acid is 180g, and the content of oxalic acid is 10g, and surplus is water；In addition to this
Communication apparatus metal shell is obtained in the same manner.
Embodiment 3
The present embodiment is used to illustrate the preparation method of communication apparatus metal shell provided by the invention.
Communication apparatus metal shell is prepared using the method for embodiment 2, unlike, the thickness of Al-alloy casing in step 1)
Spending is 0.3mm, and in step 2), etching period 28min obtains the metal shell at the slit and run through and manifest decoration
The metal shell of layer；Obtain communication apparatus metal shell in the same manner in addition to this.
Embodiment 4
The present embodiment is used to illustrate the preparation method of communication apparatus metal shell provided by the invention.
Communication apparatus metal shell is prepared using the method for embodiment 1, unlike, it is formed in step 2) using electrophoresis
With a thickness of 30 μm of decorative layer, electrophoretic paint is dumb light paint WNO-1: polish lacquer NNO-4=7:3 of Japanese clear water Co., Ltd., Gu
Content is 13%, and temperature is 30 DEG C, voltage 160V, time 2min, pH 7.8；Following etching solution and erosion are selected in step 4
Quarter condition: alkaline etching liquid ingredient: sodium hydroxide, sodium carbonate and sodium nitrate are 50g/L, and 25 DEG C of temperature, etching period is
35min；Obtain communication apparatus metal shell in the same manner in addition to this.
Embodiment 5
The present embodiment is used to illustrate the preparation method of communication apparatus metal shell provided by the invention.
Communication apparatus metal shell is prepared using the method for embodiment 1, unlike, porcelain anodic oxygen in step 2) use
The decorative layer that the method for change is formed with a thickness of 30 μm.Porcelain anolyte is 40g/L titanium potassium oxalate, 2g/L oxalic acid, 6g/L boron
Sour 1g/L citric acid, the condition of enamelled anodizing are as follows: voltage 100V, oxidization time 40min, oxidizing temperature are 40 DEG C；
Obtain communication apparatus metal shell in the same manner in addition to this.
The structure of the communication apparatus metal shell prepared in above-described embodiment 1-5 as shown in Figure 1, metal shell 1 interior table
Face is formed with plastic layer 2, and the slit on plastic layer 2 and metal shell 1 is filled up by colloid filling member 4.Outside the communication apparatus metal
Shell is due to being formed with decorative layer in outer surface, and slit appearance is invisible, also, since decorative layer is not destroyed, apparent whole
Clean smooth, whole continuity, metal-like are obvious.
Test case 1
Using the micro Vickers HV-1000 of Shanghai Aolong Xingdi Testing Instrument Co., Ltd., it is 1N, protects in load
The hardness for the communication apparatus metal shell that testing example 1-5 is obtained under conditions of pressure time 10s, wherein embodiment 1 obtains
The hardness of communication apparatus metal shell is 320HV, and the hardness for the communication apparatus metal shell that embodiment 2 obtains is 415HV, is implemented
The hardness for the communication apparatus metal shell that example 3 obtains is 415HV, and the hardness for the communication apparatus metal shell that embodiment 4 obtains is
25HV, the hardness for the communication apparatus metal shell that embodiment 5 obtains are 254HV.
Test case 2
The wear resistance for the communication apparatus metal shell that testing example 1-5 is obtained with the following method.
A. prepare 3 parts of RKF 10K (yellow cone, ROSLER company) and 1 part of RKK15P (green pyramid, ROSLER
Company), about 15L, is added to vibration frictiograph (ROSLER company, Trough vibrator R180/530 TE-30) grinding altogether
In slot；
B. FC120 4mL (ROSLER company) is drawn with pipette, and adds water to 200mL, be added in grinding groove；
C. it is added in 0.5L water to grinding groove；Add water 0.5L every 60min in test process；
D. the complete machine of setup test complete machine or counterweight needs to guarantee that main screw lift error is no more than ± 15g, TP/ key
Etc. complete, communication apparatus metal shell to be measured is mounted in complete machine, vibration Friction tester is put into and is tested, shell test
Time is 2 hours, is checked within all shells every 1 hour primary.
After test 2 hours, decorative layer does not occur the communication apparatus metal shell that embodiment 1-5 is obtained without obvious scratch
Show-through material phenomenon, it can be seen that, vibration wear time it is equal > 2h.
Test case 3
In test condition: in 35 DEG C ± 2 DEG C of closed environment, humidity > 85%, pH value is used within the scope of 6.5-7.2
The continuous 48h of 5% ± 1% NaCl solution carries out brine spray, the communication apparatus that testing example 1-5 is obtained to surface-treated layer
The corrosion resisting property of metal shell.
After carrying out brine spray 48 hours, decor surface does not go out the communication apparatus metal shell that embodiment 1-5 is obtained
Phenomena such as existing hot spot, film surface is completely corrosion-free, it is seen that and its salt fog time is equal > 48h.
According to the result of test case 1-3 it is found that the hardness of communication apparatus metal shell provided by the invention, wear-resisting, antidetonation
And corrosion resisting property is extremely good.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (16)
1. a kind of preparation method of communication apparatus metal shell, which is characterized in that method includes the following steps:
1) it is molded to form the plastic layer at least one slit in the inner surface of metal shell；
2) decorative layer is formed in the outer surface of metal shell；
3) protective layer is formed in the outer surface of the decorative layer；
4) the corresponding metal shell from the slit is etched from the inner surface of metal shell, makes the gold at the slit
Belong to shell to run through；
5) corresponding metal shell through part forms colloid filling member at the slit and at the slit；
6) protective layer is removed；
Wherein, in step 1), the width of the slit is 1-10mm.
2. preparation method according to claim 1, wherein in step 1), the material of the metal shell is aluminium alloy, no
Become rusty one of steel, magnesium alloy or titanium alloy or a variety of.
3. preparation method according to claim 1, wherein the metal shell with a thickness of 0.1-1mm.
4. preparation method according to claim 3, wherein the metal shell with a thickness of 0.2-0.3mm.
5. preparation method according to claim 1 or 2, wherein in step 1), it is described be molded the material that uses for resin and
The mixture of glass fibre, the resin are selected from polyethylene, polypropylene, polyacetals, polystyrene, Noryl, poly- pair
Ethylene terephthalate, polybutylene terephthalate (PBT), poly- naphthalenedicarboxylic acid ethylene glycol it, it is polyphenylene sulfide, polyimides, poly-
Amide imide, polyetherimide, polysulfones, polyether sulfone, polyether-ketone, polyethers ether magnesium, polycarbonate, polyamide and acrylic nitrile-butadiene
One of diene-styrene copolymer is a variety of.
6. preparation method according to claim 1 or 2, wherein described to be molded into nanometer injection molding.
7. preparation method according to claim 5, wherein in step 1), the width of the slit is 1-5mm.
8. preparation method described in any one of -4 according to claim 1, wherein in step 1), the condition packet of the injection molding
Include: mould temperature is 50-300 DEG C, and nozzle temperature is 200-450 DEG C, dwell time 1-50s, and injection pressure is 50-300MPa, is penetrated
Out the time be 1-30s, delay time 1-30s, cooling time 1-60s.
9. preparation method according to claim 1, wherein in step 2, pass through sun the step of the formation decorative layer
Pole oxidation, hard anodizing, enamelled anodizing, differential arc oxidation, spraying, electrophoresis, physical vapour deposition (PVD) and chemical vapor deposition
One of product is a variety of.
10. according to claim 1 or preparation method described in 9, wherein in step 2, the decorative layer with a thickness of 1-100 μ
m。
11. preparation method according to claim 10, wherein in step 2, the decorative layer with a thickness of 10-40 μm.
12. preparation method according to claim 1, wherein in step 3), the method for forming the protective layer is coating oil
Ink forms ink layer, or to put up adhesive tape.
13. preparation method according to claim 1, wherein described to be etched to chemical etching or electrochemistry erosion in step 4)
It carves.
14. preparation method according to claim 1, wherein in step 5), the colloid filling member passes through in the slit
Corresponding metal shell through part is filled glue and is solidified and obtains at place and the slit.
15. preparation method according to claim 12, wherein in step 6), it is de- to use to remove the method for the protective layer
It paints agent and strips the ink layer, or the removal adhesive tape.
16. the communication apparatus metal shell of the preparation of preparation method described in any one of -15 according to claim 1.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610204155.6A CN107295772B (en) | 2016-03-31 | 2016-03-31 | A kind of communication apparatus metal shell and its preparation method and application |
| TW105130150A TWI608782B (en) | 2016-03-31 | 2016-09-19 | Communication device metal housing, manufacturing method and application thereof |
| PCT/CN2017/075501 WO2017166974A1 (en) | 2016-03-31 | 2017-03-02 | Metal housing for communication device, preparation method therefor, and applications thereof |
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| CN201610204155.6A CN107295772B (en) | 2016-03-31 | 2016-03-31 | A kind of communication apparatus metal shell and its preparation method and application |
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| CN107295772A CN107295772A (en) | 2017-10-24 |
| CN107295772B true CN107295772B (en) | 2019-11-22 |
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|---|---|
| CN (1) | CN107295772B (en) |
| TW (1) | TWI608782B (en) |
| WO (1) | WO2017166974A1 (en) |
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| CN109093929A (en) * | 2018-09-17 | 2018-12-28 | 华为技术有限公司 | A kind of terminal |
| CN109348635A (en) * | 2018-12-07 | 2019-02-15 | 深圳市飞荣达科技股份有限公司 | A kind of circuit board substrate processing method |
| CN114375114B (en) * | 2020-10-15 | 2023-06-02 | 华为技术有限公司 | Aluminum-magnesium dual alloy composite, terminal metal shell and manufacturing method thereof |
| CN113339311B (en) * | 2021-05-31 | 2023-08-15 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Preparation method of high corrosion-resistant air-cooled frame |
| WO2023010269A1 (en) * | 2021-08-03 | 2023-02-09 | Micro Motion, Inc. | Wireless signal-permeable meter electronics enclosure |
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| US5178722A (en) * | 1990-04-30 | 1993-01-12 | Toyo Bossan Kabushiki Kaisha | Method of producing a flexible metal and resin film laminate with holes |
| CN104377424A (en) * | 2013-08-14 | 2015-02-25 | 三星电机株式会社 | Cover for electronic device, antenna assembly, electronic device, and method for manufacturing the same |
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| FR2957749A1 (en) * | 2010-03-22 | 2011-09-23 | Sorin Crm Sas | METHOD FOR PRODUCING AN ELECTRICAL CROSSROAD IN THE METAL WALL OF A HOUSING, IN PARTICULAR AN ACTIVE MEDICAL DEVICE, AND DEVICE COMPRISING SUCH A TRAVERSEE |
| KR101928933B1 (en) * | 2012-03-29 | 2018-12-14 | 삼성전자 주식회사 | Antenna device of mobile terminal |
| CN103507203B (en) * | 2012-06-25 | 2016-03-02 | 比亚迪股份有限公司 | A kind of metal-resin composite and preparation method thereof |
| CN104540341A (en) * | 2014-10-23 | 2015-04-22 | 深圳富泰宏精密工业有限公司 | Shell, electronic device employing shell and manufacture method of shell |
| CN105530785B (en) * | 2014-12-26 | 2016-11-23 | 比亚迪股份有限公司 | A kind of electronic product metal shell being formed with antenna slot and preparation method thereof |
| 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 |
| CN106413321B (en) * | 2015-07-27 | 2019-07-26 | 比亚迪股份有限公司 | A kind of communication apparatus metal shell and preparation method thereof |
| CN105007348A (en) * | 2015-07-29 | 2015-10-28 | 广东欧珀移动通信有限公司 | Shell, mobile terminal and shell manufacturing method |
-
2016
- 2016-03-31 CN CN201610204155.6A patent/CN107295772B/en active Active
- 2016-09-19 TW TW105130150A patent/TWI608782B/en active
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- 2017-03-02 WO PCT/CN2017/075501 patent/WO2017166974A1/en active Application Filing
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| US5178722A (en) * | 1990-04-30 | 1993-01-12 | Toyo Bossan Kabushiki Kaisha | Method of producing a flexible metal and resin film laminate with holes |
| CN105340130A (en) * | 2013-06-07 | 2016-02-17 | 苹果公司 | Antenna window and antenna pattern for electronic devices and methods of manufacturing the same |
| CN104377424A (en) * | 2013-08-14 | 2015-02-25 | 三星电机株式会社 | Cover for electronic device, antenna assembly, electronic device, and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI608782B (en) | 2017-12-11 |
| WO2017166974A1 (en) | 2017-10-05 |
| TW201735763A (en) | 2017-10-01 |
| CN107295772A (en) | 2017-10-24 |
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