CN106790791A - A kind of cell phone rear cover with metal-like and preparation method thereof - Google Patents
A kind of cell phone rear cover with metal-like and preparation method thereof Download PDFInfo
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- CN106790791A CN106790791A CN201611108248.5A CN201611108248A CN106790791A CN 106790791 A CN106790791 A CN 106790791A CN 201611108248 A CN201611108248 A CN 201611108248A CN 106790791 A CN106790791 A CN 106790791A
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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
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
- C04B35/49—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates containing also titanium oxides or titanates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
- C04B41/5194—Metallisation of multilayered ceramics, e.g. for the fabrication of multilayer ceramic capacitors
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/88—Metals
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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
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
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- Signal Processing (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention discloses a kind of cell phone rear cover with metal-like, including cell phone rear cover matrix and metal compound coatings, mainboard electronic component is provided with the cell phone rear cover matrix, it is made up of zirconium oxide；The metal compound coatings are obtained by following methods：Metal material is sprayed on the surface of cell phone rear cover matrix by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed, metallic film is formed；The metallic film is aoxidized by corrosion treatment, forms metallic compound；The thickness of the metallic compound accounts for the 70 80% of the thickness of metallic film.Accordingly, invention additionally discloses the preparation method of above-mentioned cell phone rear cover.Using the present invention, the outward appearance of metal shell is not only realized, the thickness with metal unique texture and sense of touch, and mobile phone reduces by 1/5, cost reduction by 2/3, more than 2 times of wireless radio transmission efficiency raising.
Description
Technical field
It is more particularly to a kind of with the cell phone rear cover of metal-like and its preparation side the present invention relates to cell phone rear cover field
Method.
Background technology
From first initial battlefield mobile phone 4G smart mobile phones till now, when extending to 5G on the horizon
Generation, the function of mobile phone becomes stronger and stronger.Cell phone rear cover since initial plastics, plastics, glass, metal till now etc.
Material is simultaneously deposited, and the variation of cell phone rear cover meets the demand of different customers.And in most cases, based on plastics into
This is low, the features such as plasticity is strong, is mainly used in low and middle-grade mobile phones.Glass is mainly used in the medium and high classes stage.And it is directed to gold
Category, based on its unique texture and sense of touch, is then mainly used in high-grade mobile phone, and another its complex process, yields are low, it is invisible it
In increased cost.With the growing demand of people and the arrival in 5G epoch, it has been found that, existing bonnet material
Demand is much can not meet, a kind of new material or new technique how is developed, preferably to serve masses, also shown
Obtain more crucial.
Plastics have the advantages that low cost, ease for use and plasticity, and technology maturation, but its low thermal conductivity, texture are not
It is good, be difficult to improve grade；Glass has outward appearance exquisite, glittering and translucent, but for 2.5D and 3D fields, the technology of glass is also much
It is not reaching to, and its is frangible, high with maintenance cost after sale so that glass is difficult to develop faster having in the near future；Metal
With preferable texture and sense of touch, class is very high, but the yields of complex manufacturing technology and finished product is relatively low, is virtually added to
Sheet, and 5G epoch on the horizon, the quantity of array antenna will significantly increase, and the shell of all-metal, can produce to signal at that time
Raw shielding, it is also difficult to be further developed；
Metal and ceramic phase are combined, can be a kind of trend of following cell phone rear cover development.
Prior art CN105306628 A disclose a kind of manufacture craft of mobile phone ceramic case, including：（1）Prepare ceramics
Housing：Prepare the ceramic shell matched with mobile phone；（2）Metal cladding：In the outer surface metal-coated films of the ceramic shell；
（3）Anodic oxidation：By anodized technique, the metallic film is replaced into the metal oxide film of insulation.Existing skill
Art is that metal oxide film is obtained by anodic oxidation, and the thickness of metallic film is 20-50 μm, and the thickness of metal oxide film is
10-20 μm, metal oxide film only accounts for metallic film 40-50%, and it can only ensure not influence radio signal, but can not
The efficiency of wireless radio transmission is improved, its heating problem can not be well solved.
The content of the invention
The technical problems to be solved by the invention are, there is provided a kind of cell phone rear cover, realize the outward appearance of metal shell, have
Metal unique texture and sense of touch.
The technical problems to be solved by the invention are also resided in, there is provided a kind of cell phone rear cover, intensity hardness is high, and high temperature resistant is resistance to
Corrosion, thermal conductivity is moderate, and the thickness of mobile phone reduces by 1/5, cost reduction by 2/3, more than 2 times of wireless radio transmission efficiency raising.
The technical problems to be solved by the invention are also resided in, there is provided a kind of cell phone rear cover, and its yield rate is more than 95%.
The technical problems to be solved by the invention are also resided in, there is provided a kind of cell phone rear cover, will not mistake after long period use
Degree heating.
The technical problems to be solved by the invention are also resided in, there is provided a kind of preparation method of above-mentioned cell phone rear cover, the system
Preparation Method process is simple, easily operation, is adapted to large-scale promotion application.
To reach above-mentioned technique effect, the invention provides a kind of cell phone rear cover with metal-like, including after mobile phone
Lid matrix and metal compound coatings, mainboard electronic component is provided with the cell phone rear cover matrix, and it is made up of zirconium oxide；
The metal compound coatings are obtained by following methods：
Metal material is sprayed on by mobile phone by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed
The surface of bonnet matrix, forms the metallic film that thickness is 50nm-5000nm or 0.1-0.5mm；
The metallic film is aoxidized by corrosion treatment, forms the insulation that thickness is 50nm-1000nm or 0.1-0.3mm
Metallic compound；
The thickness of the metallic compound accounts for the 70-80% of the thickness of metallic film.
Used as the improvement of such scheme, the metal material is aluminium alloy, titanium alloy, magnesium alloy or stainless steel.
As the improvement of such scheme, circuit, chip, antenna, NFC, wireless charging are provided with the cell phone rear cover matrix
Module.
Used as the improvement of such scheme, the thickness of the cell phone rear cover matrix is 100nm-0.8mm.
Used as the improvement of such scheme, cell phone rear cover matrix composition of raw materials in parts by weight is as follows：
Zirconium oxide 50-80 parts
Aluminum oxide 1-5 parts
Yittrium oxide 0.1-0.5 parts
Titanium oxide 0.1-0.5 parts
Binding agent 1-10 parts
Dispersant 0.1-5 parts
Plasticizer 0.1-5 parts
Solvent 10-35 parts.
Used as the improvement of such scheme, the solvent is water or organic solvent；
The binding agent is one kind or combination in PMA, ethyl cellulose, polyvinyl alcohol；
The dispersant is one kind or combination in triethanolamine, tbp, terpinol；
The plasticizer is one kind or combination in polyethylene glycol, phthalic acid ester, ethylene glycol.
Accordingly, invention additionally discloses a kind of preparation method of the cell phone rear cover with metal-like, including：
（1）Raw material mixing and slurrying needed for cell phone rear cover will be prepared, ceramics curtain coating plain piece is obtained by casting machine；
（2）Ceramics curtain coating plain piece is carried out into lamination treatment；
（3）Ceramics curtain coating plain piece after lamination is carried out laminating treatment；
（4）The ceramics curtain coating plain piece after treatment will be laminated carries out isostatic pressed treatment；
（5）Ceramics curtain coating plain piece after isostatic pressed is processed carries out dumping treatment；
（6）Ceramics curtain coating plain piece after dumping is processed is sintered, and obtains potsherd；
（7）Metal material is sprayed on by pottery by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed
The surface of ceramics, forms the metallic film that thickness is 50nm-5000nm or 0.1-0.5mm；
（8）The metallic film is aoxidized by corrosion treatment, it is the exhausted of 50nm-1000nm or 0.1-0.3mm to form thickness
The metallic compound of edge.
Used as the improvement of such scheme, the ceramics curtain coating plain piece after the lamination carries out laminating treatment by press, described
Pressure≤the 15MPa of press.
Used as the improvement of such scheme, the pressure of the isostatic pressed treatment is 13-60MPa.
Used as the improvement of such scheme, the temperature of the sintering is 1400 DEG C -1700 DEG C, and sintering time is 24-72h.
Implement the present invention to have the advantages that：
The present invention provides a kind of cell phone rear cover with metal-like, using special cermacis as cell phone rear cover matrix, and
Ceramic package sprays layer of metal material, final cell phone rear cover finished product, the not only advantage with special cermacis, but also has
There is metal-like, this technique is manufactured with respect to full metal jacket, and relatively easy with processing technology, yields is high, will not to signal
Shielding action is played, and maintains the distinctive texture of metal and sense of touch, top grade, the sensation of fashion can be given.
Wherein, cell phone rear cover matrix is made up of zirconium oxide, aluminum oxide, yittrium oxide, the titanium oxide etc. of specific proportioning, with resistance to
High temperature, hardness are high, abrasion performance, the excellent performance such as corrosion-resistant, Mohs' hardness close to 9.0, slightly inferior to diamond, with sapphire hardness
Quite, stable chemical nature, antiacid alkali, and its thermal conductivity is moderate, mobile phone in after long period use will not excessive heating, be situated between
Electric constant is sapphire 3 times, but its cost is that there was only sapphire a quarter.
Metal compound coatings are to first pass through spraying coating process, and metallic film, Ran Houtong are formed in cell phone rear cover matrix surface
Excessive erosion treatment aoxidizes metallic film, forms metallic compound.The present invention utilizes etching process, and defines metal foil thickness
It is 50nm-5000nm or 0.1-0.5mm to spend, and metallic compound thickness is 50nm-1000nm or 0.1-0.3mm, metallization
The thickness of compound accounts for the 70-80% of the thickness of metallic film, and the thickness of mobile phone can be made to reduce by 1/5, cost reduction by 2/3, radio
Efficiency of transmission improves more than 2 times, and yield rate is more than 95%.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the cell phone rear cover with metal-like of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the drawings and specific embodiments pair
The present invention is described in further detail.
As shown in figure 1, the present invention provides a kind of cell phone rear cover with metal-like, using special cermacis as mobile phone after
Lid matrix 1, and in the surface spraying layer of metal material of cell phone rear cover matrix 1, metallic film 2 is formed, then by corrosion treatment
The oxidation of the metallic film 2 is formed into metal compound coatings 3.Final cell phone rear cover finished product, not only with special cermacis
Advantage, but also with metal-like, this technique is manufactured with respect to full metal jacket, yields relatively easy with processing technology
Height, shielding action will not be played to signal, and maintains the distinctive texture of metal and sense of touch, can give top grade, fashion
Feel.
The metal material can be aluminium alloy, titanium alloy, magnesium alloy or stainless steel, but not limited to this.
Specifically, the metal compound coatings 3 are obtained by following methods：
Metal material is sprayed on by mobile phone by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed
The surface of bonnet matrix 1, forms metallic film 2；
The metallic film 2 is aoxidized by corrosion treatment, forms the metal compound coatings 3 of insulation.
Preferably, metal material is sprayed on the surface of cell phone rear cover matrix 1 by magnetron sputtering, metallic film 2 is formed.
Principle of magnetron-sputtering is：Electronics accelerates to fly to substrate in the presence of electric field, and it collides with ar atmo, ionizes out substantial amounts of
Argon ion and electronics, electronics fly to substrate.Argon ion accelerates to bombard target in the presence of electric field, sputters substantial amounts of target former
Son, film forming on substrate is deposited in neutral target atom (or molecule).Therefore, magnetron sputtering can with precise control metallic film into
The thickness and uniformity of type, tack of the metallic film on ceramic matrix are strong, difficult for drop-off.
After magnetron sputtering technique, the present invention by corrosion treatment, the metal or alloy of substrate surface is converted into again
Nonconducting metallic compound, metallic compound can change the surface state and performance of virgin metal or alloy, such as improve corrosion resistant
Corrosion, surface coloring, enhancing wearability and hardness, protection metal surface etc., and, using magnetron sputtering technique+corruption of the present invention
Erosion is processed, and wireless radio transmission efficiency improves more than 2 times, and yield rate is more than 95%.
Preferably, the thickness of the metallic film 2 is 50nm-5000nm or 0.1-0.5mm, and the metallic compound is applied
The thickness of layer 3 is 50nm-1000nm or 0.1-0.3mm, and metallic film 2 is engaged with the thickness of metal compound coatings 3, makes
Obtaining cell phone rear cover has good metal-like, and thickness reduces 1/5.
The thickness of the metal compound coatings 3 accounts for the 70-80% of the thickness of metallic film 2, if metal compound coatings 3
Thickness account for the thickness of metallic film 2 less than 70%, surface coloring is difficult, and corrosion resistance can not be significantly improved, wearability and hardness
Can not significantly improve.If the thickness of metal compound coatings 3 accounts for the thickness of metallic film 2 more than 80%, metal foil can be influenceed
The fastness that film adheres in the cell phone rear cover matrix 1 of ceramic material.
And, the present invention substantially can be improved to 95% the yield rate of product using the tactic pattern of ceramics+metal, former
Because as follows：（1）The thickness of metal is about the 1/10 to 1/3 of simple metal technique, even more thin.Metal thickness is thinning, allowance
Smaller, not only cost reduction, yield rate is also more many than original lifting.（2）The shaping of structural member relies primarily on ceramics to provide, gold
Used as the attachment for being plated in surface, the later stage is processed category again, thus the processing to metal will not be excessive be related to shaping in terms of, make
Yield is obtained to improve；（3）If only using ceramics as cell phone rear cover, the Mohs' hardness of ceramics causes process close to 9.0
In, cost is not only high, and shaping yield is also very low, and the present invention uses ceramics+smithcraft so that the processing to ceramics is reduced,
Cost can be lower, and yield can also be lifted.
Further, be provided with mainboard electronic component in the cell phone rear cover matrix 1, mainboard electronic component include circuit,
Chip, antenna, NFC, wireless charging module etc., but not limited to this.The present invention will such as circuit, chip, antenna, NFC, wireless charging
Electronic component involved by the mainboards such as electricity can be transferred in cell phone rear cover, neither influence the transmission of signal, also saved
Space on mainboard.
The thickness of the cell phone rear cover matrix 1 is 100nm-0.8mm, but not limited to this.It should be noted that the mobile phone
The thickness of bonnet matrix 1 can be adjusted according to actual needs, and embodiments thereof does not limit to illustrated embodiment of the present invention.
The cell phone rear cover matrix is made up of zirconium oxide, and its composition of raw materials in parts by weight is as follows：
Zirconium oxide 50-80 parts
Aluminum oxide 1-5 parts
Yittrium oxide 0.1-0.5 parts
Titanium oxide 0.1-0.5 parts
Binding agent 1-10 parts
Dispersant 0.1-5 parts
Plasticizer 0.1-5 parts
Solvent 10-35 parts.
The solvent is water or organic solvent；
The binding agent is one kind or combination in PMA, ethyl cellulose, polyvinyl alcohol；
The dispersant is one kind or combination in triethanolamine, tbp, terpinol；
The plasticizer is one kind or combination in polyethylene glycol, phthalic acid ester, ethylene glycol.
Preferably, cell phone rear cover matrix composition of raw materials in parts by weight is as follows：
Zirconium oxide 55-75 parts
Aluminum oxide 1-3 parts
Yittrium oxide 0.1-0.3 parts
Titanium oxide 0.1-0.3 parts
Binding agent 2-8 parts
Dispersant 0.1-3 parts
Plasticizer 0.1-3 parts
Solvent 15-30 parts.
More preferably, cell phone rear cover matrix composition of raw materials in parts by weight is as follows：
Zirconium oxide 60-70 parts
Aluminum oxide 1-2 parts
Yittrium oxide 0.1-0.3 parts
Titanium oxide 0.1-0.3 parts
Binding agent 2-5 parts
Dispersant 0.1-2 parts
Plasticizer 0.1-2 parts
Solvent 20-25 parts.
Cell phone rear cover matrix is made up of zirconium oxide, aluminum oxide, yittrium oxide, the titanium oxide etc. of specific proportioning, with high temperature resistant,
Hardness is high, abrasion performance, the excellent performance such as corrosion-resistant, and Mohs' hardness is suitable with sapphire hardness slightly inferior to diamond close to 9.0,
Stable chemical nature, antiacid alkali, and its thermal conductivity is moderate, mobile phone in after long period use will not excessive heating, dielectric is normal
Number is sapphire 3 times, but its cost is that there was only sapphire a quarter.
Using cell phone rear cover matrix obtained in above-mentioned material, it can very well coordinate metal material of the invention and magnetic control
Sputtering technology+corrosion treatment technique, makes the present invention obtain optimal metal-like, and above-mentioned metal material is difficult to scratch, and is difficult
Come off, long service life, wireless radio transmission efficiency improves more than 2 times, and yield rate is more than 95%.
Accordingly, invention additionally discloses a kind of preparation method of the cell phone rear cover with metal-like, including：
（1）Raw material mixing and slurrying needed for cell phone rear cover will be prepared, ceramics curtain coating plain piece is obtained by casting machine.
（2）Ceramics curtain coating plain piece is carried out into lamination treatment.
（3）Ceramics curtain coating plain piece after lamination is carried out laminating treatment.
Preferably, the blank after the lamination is carried out laminating treatment by press, and the pressure≤15MPa of the press is adopted
Blank is carried out with above-mentioned pressure laminate treatment, can make to be bonded together well between lamella, and so that after lamination
The geomery of blank within zone of reasonableness, so that the later stage carries out isostatic pressed treatment.
（4）The ceramics curtain coating plain piece after treatment will be laminated carries out isostatic pressed treatment.
Preferably, the pressure of the isostatic pressed treatment is 13-60MPa.
（5）Ceramics curtain coating plain piece after isostatic pressed is processed carries out dumping treatment.
（6）Ceramics curtain coating plain piece after dumping is processed is sintered, and obtains potsherd.
Preferably, the temperature of the sintering is 1400 DEG C -1700 DEG C, and sintering time is 24-72h.Before sintering, first carry out
Dumping, low temperature bonding agent is removed.Then, carry out being sintered in sintering furnace, temperature is gentle high by 1600 degree or so
Warm binding agent removal.The present invention is sintered within the temperature range of 1400 DEG C -1700 DEG C, can be by binding agent as far as possible
Elimination so that last ceramic product has inner homogeneous, it is ensured that ceramics performance.
（7）Metal material is sprayed by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed
On the surface of potsherd, the metallic film that thickness is 50nm-5000nm or 0.1-0.5mm is formed.
（8）The metallic film is aoxidized by corrosion treatment, forms thickness for 50nm-1000nm or 0.1-0.3mm
Insulation metallic compound.
It should be noted that it is related to the structure of cell phone rear cover, material characteristics consistent with the above in preparation method, herein no longer
Repeat.
In sum, the present invention uses ceramics+metal back cover, and both its unique texture and sense of touch with metal, had again
The high temperature resistant of ceramics, hardness high, abrasion performance, the excellent performance such as corrosion-resistant.Its advantage for having had the two concurrently, indices are more dashed forward
Go out, performance is remarkable, it will better meet the demand of client.
The present invention is further produced with specific embodiment below
Embodiment 1
（One）Formula：
（1）, cell phone rear cover matrix
50 parts of zirconium oxide
1 part of aluminum oxide
0.1 part of yittrium oxide
0.1 part of titanium oxide
1 part of binding agent
0.1 part of dispersant
0.1 part of plasticizer
10 parts of solvent.
（2）, metal material be aluminium alloy.
（Two）Preparation method：
（1）Raw material mixing and slurrying needed for cell phone rear cover will be prepared, ceramics curtain coating plain piece is obtained by casting machine；
（2）Ceramics curtain coating plain piece is carried out into lamination treatment；
（3）Ceramics curtain coating plain piece after lamination is carried out laminating treatment；
（4）The ceramics curtain coating plain piece after treatment will be laminated carries out isostatic pressed treatment；
（5）Ceramics curtain coating plain piece after isostatic pressed is processed carries out dumping treatment；
（6）Ceramics curtain coating plain piece after dumping is processed is sintered, and obtains potsherd；
（7）Metal material is sprayed on by pottery by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed
The surface of ceramics, forms the metallic film that thickness is 70nm；
（8）The metallic film is aoxidized by corrosion treatment, forms the metallic compound of the insulation that thickness is 50nm, metallization
The thickness of compound accounts for the thickness 71% of metallic film.
Embodiment 2
（One）Formula：
（1）, cell phone rear cover matrix
60 parts of zirconium oxide
2 parts of aluminum oxide
0.2 part of yittrium oxide
0.2 part of titanium oxide
5 parts of binding agent
2 parts of dispersant
2 parts of plasticizer
20 parts of solvent.
（2）, metal material be titanium alloy.
（Two）Preparation method：
（1）Raw material mixing and slurrying needed for cell phone rear cover will be prepared, ceramics curtain coating plain piece is obtained by casting machine；
（2）Ceramics curtain coating plain piece is carried out into lamination treatment；
（3）Ceramics curtain coating plain piece after lamination is carried out laminating treatment；
（4）The ceramics curtain coating plain piece after treatment will be laminated carries out isostatic pressed treatment；
（5）Ceramics curtain coating plain piece after isostatic pressed is processed carries out dumping treatment；
（6）Ceramics curtain coating plain piece after dumping is processed is sintered, and obtains potsherd；
（7）Metal material is sprayed on by pottery by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed
The surface of ceramics, forms the metallic film that thickness is 200nm；
（8）The metallic film is aoxidized by corrosion treatment, forms the metallic compound of the insulation that thickness is 160nm, metal
The thickness of compound accounts for the thickness 80% of metallic film.
Embodiment 3
（One）Formula：
（1）, cell phone rear cover matrix
70 parts of zirconium oxide
4 parts of aluminum oxide
0.4 part of yittrium oxide
0.4 part of titanium oxide
6 parts of binding agent
0.4 part of dispersant
0.4 part of plasticizer
25 parts of solvent.
（2）, metal material be magnesium alloy.
（Two）Preparation method：
（1）Raw material mixing and slurrying needed for cell phone rear cover will be prepared, ceramics curtain coating plain piece is obtained by casting machine；
（2）Ceramics curtain coating plain piece is carried out into lamination treatment；
（3）Ceramics curtain coating plain piece after lamination is carried out laminating treatment；
（4）The ceramics curtain coating plain piece after treatment will be laminated carries out isostatic pressed treatment；
（5）Ceramics curtain coating plain piece after isostatic pressed is processed carries out dumping treatment；
（6）Ceramics curtain coating plain piece after dumping is processed is sintered, and obtains potsherd；
（7）Metal material is sprayed on by pottery by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed
The surface of ceramics, forms the metallic film that thickness is 3000nm；
（8）The metallic film is aoxidized by corrosion treatment, forms the metallic compound of the insulation that thickness is 2350nm, metal
The thickness of compound accounts for the thickness 78% of metallic film.
Embodiment 4
（One）Formula：
（1）, cell phone rear cover matrix
80 parts of zirconium oxide
5 parts of aluminum oxide
0.5 part of yittrium oxide
0.5 part of titanium oxide
10 parts of binding agent
5 parts of dispersant
5 parts of plasticizer
35 parts of solvent.
（2）, metal material be stainless steel.
（Two）Preparation method：
（1）Raw material mixing and slurrying needed for cell phone rear cover will be prepared, ceramics curtain coating plain piece is obtained by casting machine；
（2）Ceramics curtain coating plain piece is carried out into lamination treatment；
（3）Ceramics curtain coating plain piece after lamination is carried out laminating treatment；
（4）The ceramics curtain coating plain piece after treatment will be laminated carries out isostatic pressed treatment；
（5）Ceramics curtain coating plain piece after isostatic pressed is processed carries out dumping treatment；
（6）Ceramics curtain coating plain piece after dumping is processed is sintered, and obtains potsherd；
（7）Metal material is sprayed on by pottery by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed
The surface of ceramics, forms the metallic film that thickness is 0.2mm；
（8）The metallic film is aoxidized by corrosion treatment, forms the metallic compound of the insulation that thickness is 0.15mm, metal
The thickness of compound accounts for the thickness 75% of metallic film.
Technology for detection is done to specific embodiment below, it is as a result as follows：
。
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of cell phone rear cover with metal-like, it is characterised in that including cell phone rear cover matrix and metal compound coatings,
Mainboard electronic component is provided with the cell phone rear cover matrix, it is made up of zirconium oxide；
The metal compound coatings are obtained by following methods：
Metal material is sprayed on by mobile phone by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed
The surface of bonnet matrix, forms the metallic film that thickness is 50nm-5000nm or 0.1-0.5mm；
The metallic film is aoxidized by corrosion treatment, forms the insulation that thickness is 50nm-1000nm or 0.1-0.3mm
Metallic compound；
The thickness of the metallic compound accounts for the 70-80% of the thickness of metallic film.
2. there is the cell phone rear cover of metal-like as claimed in claim 1, it is characterised in that the metal material is that aluminium is closed
Gold, titanium alloy, magnesium alloy or stainless steel.
3. there is the cell phone rear cover of metal-like as claimed in claim 1, it is characterised in that set in the cell phone rear cover matrix
There are circuit, chip, antenna, NFC, wireless charging module.
4. there is the cell phone rear cover of metal-like as claimed in claim 3, it is characterised in that the thickness of the cell phone rear cover matrix
It is 100nm-0.8mm to spend.
5. there is the cell phone rear cover of metal-like as claimed in claim 4, it is characterised in that the cell phone rear cover matrix is with weight
The composition of raw materials of amount part meter is as follows：
Zirconium oxide 50-80 parts
Aluminum oxide 1-5 parts
Yittrium oxide 0.1-0.5 parts
Titanium oxide 0.1-0.5 parts
Binding agent 1-10 parts
Dispersant 0.1-5 parts
Plasticizer 0.1-5 parts
Solvent 10-35 parts.
6. there is the cell phone rear cover of metal-like as claimed in claim 5, it is characterised in that the solvent is water or organic molten
Agent；
The binding agent is one kind or combination in PMA, ethyl cellulose, polyvinyl alcohol；
The dispersant is one kind or combination in triethanolamine, tbp, terpinol；
The plasticizer is one kind or combination in polyethylene glycol, phthalic acid ester, ethylene glycol.
7. a kind of preparation method of the cell phone rear cover with metal-like, it is characterised in that including：
（1）Raw material mixing and slurrying needed for cell phone rear cover will be prepared, ceramics curtain coating plain piece is obtained by casting machine；
（2）Ceramics curtain coating plain piece is carried out into lamination treatment；
（3）Ceramics curtain coating plain piece after lamination is carried out laminating treatment；
（4）The ceramics curtain coating plain piece after treatment will be laminated carries out isostatic pressed treatment；
（5）Ceramics curtain coating plain piece after isostatic pressed is processed carries out dumping treatment；
（6）Ceramics curtain coating plain piece after dumping is processed is sintered, and obtains potsherd；
（7）Metal material is sprayed on by pottery by magnetron sputtering, arc heat thermal spraying, supersonic speed thermal spraying or plasma thermal sprayed
The surface of ceramics, forms the metallic film that thickness is 50nm-5000nm or 0.1-0.5mm；
（8）The metallic film is aoxidized by corrosion treatment, it is the exhausted of 50nm-1000nm or 0.1-0.3mm to form thickness
The metallic compound of edge.
8. there is the preparation method of the cell phone rear cover of metal-like as claimed in claim 7, it is characterised in that after the lamination
Ceramics curtain coating plain piece carry out laminating treatment, the pressure≤15MPa of the press by press.
9. there is the preparation method of the cell phone rear cover of metal-like as claimed in claim 7, it is characterised in that the isostatic pressed
The pressure for the treatment of is 13-60MPa.
10. there is the preparation method of the cell phone rear cover of metal-like as claimed in claim 7, it is characterised in that the sintering
Temperature be 1400 DEG C -1700 DEG C, sintering time is 24-72h.
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| CN201611108248.5A CN106790791B (en) | 2016-12-06 | 2016-12-06 | Mobile phone rear cover with metal texture and preparation method thereof |
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| CN201611108248.5A CN106790791B (en) | 2016-12-06 | 2016-12-06 | Mobile phone rear cover with metal texture and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332959A (en) * | 2017-06-21 | 2017-11-07 | 维沃移动通信有限公司 | Housing, Wireless Telecom Equipment and manufacture of casing |
| CN107599536A (en) * | 2017-08-02 | 2018-01-19 | 广东新秀新材料股份有限公司 | High tenacity ceramics, its preparation method and application |
| CN108166038A (en) * | 2017-12-25 | 2018-06-15 | 沭阳瑞泰科技有限公司 | A kind of ceramics painting methods and electronic product ceramic member |
| CN108192048A (en) * | 2018-01-18 | 2018-06-22 | 杨霞 | A kind of mobile phone shell with metal-like and preparation method thereof |
| CN109133955A (en) * | 2017-06-19 | 2019-01-04 | 济南瑰宝新材料有限公司 | A kind of Zirconium oxide fibre toughened zirconium oxide ceramic material and preparation method thereof |
| CN109719300A (en) * | 2017-10-31 | 2019-05-07 | 华为技术有限公司 | The method of composite material, mobile phone center, cell phone rear cover and machining composite material |
| CN114107904A (en) * | 2020-08-25 | 2022-03-01 | 荣耀终端有限公司 | Preparation method of structural member, structural member and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199758Y (en) * | 2008-04-14 | 2009-02-25 | 徐钲鉴 | Structure for covering surface of electronic apparatus shell |
| CN104947059A (en) * | 2015-06-30 | 2015-09-30 | 成都易胜科生物科技有限公司 | Electronic device shell with nanometer titanium dioxide film covering surface and processing method thereof |
| CN104961461A (en) * | 2015-06-08 | 2015-10-07 | 南充三环电子有限公司 | Preparation method for zirconia ceramic rear cover of mobile phone |
| CN105430125A (en) * | 2015-11-13 | 2016-03-23 | 深圳百工精艺材料技术有限公司 | Functional mobile phone back shell and preparation method thereof |
| CN105491823A (en) * | 2014-09-19 | 2016-04-13 | 联想(北京)有限公司 | Electronic equipment and preparation method for electronic equipment shell |
-
2016
- 2016-12-06 CN CN201611108248.5A patent/CN106790791B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199758Y (en) * | 2008-04-14 | 2009-02-25 | 徐钲鉴 | Structure for covering surface of electronic apparatus shell |
| CN105491823A (en) * | 2014-09-19 | 2016-04-13 | 联想(北京)有限公司 | Electronic equipment and preparation method for electronic equipment shell |
| CN104961461A (en) * | 2015-06-08 | 2015-10-07 | 南充三环电子有限公司 | Preparation method for zirconia ceramic rear cover of mobile phone |
| CN104947059A (en) * | 2015-06-30 | 2015-09-30 | 成都易胜科生物科技有限公司 | Electronic device shell with nanometer titanium dioxide film covering surface and processing method thereof |
| CN105430125A (en) * | 2015-11-13 | 2016-03-23 | 深圳百工精艺材料技术有限公司 | Functional mobile phone back shell and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133955A (en) * | 2017-06-19 | 2019-01-04 | 济南瑰宝新材料有限公司 | A kind of Zirconium oxide fibre toughened zirconium oxide ceramic material and preparation method thereof |
| CN107332959A (en) * | 2017-06-21 | 2017-11-07 | 维沃移动通信有限公司 | Housing, Wireless Telecom Equipment and manufacture of casing |
| CN107599536A (en) * | 2017-08-02 | 2018-01-19 | 广东新秀新材料股份有限公司 | High tenacity ceramics, its preparation method and application |
| CN107599536B (en) * | 2017-08-02 | 2019-10-22 | 广东新秀新材料股份有限公司 | High tenacity ceramics, preparation method and application |
| CN109719300A (en) * | 2017-10-31 | 2019-05-07 | 华为技术有限公司 | The method of composite material, mobile phone center, cell phone rear cover and machining composite material |
| CN108166038A (en) * | 2017-12-25 | 2018-06-15 | 沭阳瑞泰科技有限公司 | A kind of ceramics painting methods and electronic product ceramic member |
| CN108192048A (en) * | 2018-01-18 | 2018-06-22 | 杨霞 | A kind of mobile phone shell with metal-like and preparation method thereof |
| CN114107904A (en) * | 2020-08-25 | 2022-03-01 | 荣耀终端有限公司 | Preparation method of structural member, structural member and electronic equipment |
| CN114107904B (en) * | 2020-08-25 | 2024-03-12 | 荣耀终端有限公司 | Manufacturing method of structural part, structural part and electronic equipment |
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