CN105643968A - Manufacturing method for curved cover plate, curved cover plate and mobile terminal - Google Patents
Manufacturing method for curved cover plate, curved cover plate and mobile terminal Download PDFInfo
- Publication number
- CN105643968A CN105643968A CN201610008055.6A CN201610008055A CN105643968A CN 105643968 A CN105643968 A CN 105643968A CN 201610008055 A CN201610008055 A CN 201610008055A CN 105643968 A CN105643968 A CN 105643968A
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- CN
- China
- Prior art keywords
- curved surface
- plastic plate
- surface plastic
- cover plate
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/006—Producing casings, e.g. accumulator cases
-
- 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
-
- 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
Abstract
The embodiment of the invention discloses a manufacturing method for a curved cover plate, the curved cover plate and a mobile terminal. The manufacturing method for the curved cover plate comprises the steps of carrying out injection-compression treatment on plastic material for forming a curved plastic plate; carrying out silicification hardening treatment on the front surface of the curved plastic plate for forming a hardened layer on the front surface of the curved plastic plate; adopting the spraying, laser etching and numerical control machining technology for forming a decorative area on the back surface of the curved plastic plate. The curved cover plate is high in scratch resistance, small in stress, easy to form and low in cost.
Description
Technical field
The present embodiments relate to curved surface forming technology, particularly relate to the manufacture method of a kind of curved surface cover plate, curved surface cover plate and mobile terminal.
Background technology
At present, such as smart mobile phone, panel computer become with the intelligent terminal of personal computer etc people exchange, live, work, entertain, a requisite instrument of study etc., far beyond the category of call instrument, more become fashion product, not only to be suitable for, more want fashion. As the cover plate of intelligent terminal's form also from planar development to curved surface.
At present, the curved surface cover plate in mobile phone is generally bend glass cover plate, main adopts high-temperature thermo-compression formation technique to form bend glass, and by grinding and the technique such as polishing improves the surface property of bend glass. But, owing to the precision comparison difficulty of high-temperature thermo-compression formation technique controls, and to the grinding of bend glass and the more difficult control of polishing so that the machining accuracy of existing bend glass cover plate is not high, and process time is longer, thus curved surface cover plate is relatively costly.
Summary of the invention
The present invention provides the manufacture method of a kind of curved surface cover plate, curved surface cover plate and mobile terminal, to improve the machining accuracy of curved surface cover plate, saves cost.
First aspect, embodiments provides the manufacture method of curved surface cover plate, and described method includes:
Plastic material is carried out injection moulding compression process, to form curved surface plastic plate;
Silication cure process is made in the front of described curved surface plastic plate, to form hardened layer in the front of described curved surface plastic plate;
Adopt spraying, laser carving and numerical control processing technology, form ornamental area at the back side of described curved surface plastic plate.
Second aspect, the embodiment of the present invention additionally provides a kind of curved surface cover plate, and described curved surface cover plate includes the curved surface plastic plate formed through injection moulding compression process, and the front of described curved surface plastic plate is provided with hardened layer, and the back side of described curved surface plastic plate is provided with ornamental area.
The third aspect, the embodiment of the present invention additionally provides a kind of mobile terminal, and described mobile terminal includes the curved surface cover plate that any embodiment of the present invention provides.
The technical scheme that the embodiment of the present invention provides, by plastic material being carried out injection moulding compression process, to form curved surface plastic plate, bend glass is formed compared to prior art adopts high-temperature thermo-compression formation technique, there is stress little, easy-formation and low cost and other advantages, silication cure process is made in the front of curved surface plastic plate, to form hardened layer in the front of curved surface plastic plate, process compared to bend glass surface is ground in prior art and polishing etc., there is high scratch resistance, namely, embodiments provide a kind of high scratch resistance, stress is little, easy-formation and the low curved surface cover plate of cost.
Accompanying drawing explanation
Fig. 1 is the flow chart of the manufacture method of a kind of curved surface cover plate in the embodiment of the present invention one;
Fig. 2 is the flow chart of the manufacture method of a kind of curved surface cover plate in the embodiment of the present invention two;
Fig. 3 a is the flow chart of the manufacture method of a kind of curved surface cover plate in the embodiment of the present invention three;
Fig. 3 b-Fig. 3 d is the structural representation in each stage of manufacture method of the curved surface cover plate corresponding with Fig. 3 a.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail. It is understood that specific embodiment described herein is used only for explaining the present invention, but not limitation of the invention. It also should be noted that, for the ease of describing, accompanying drawing illustrate only part related to the present invention but not entire infrastructure.
Embodiment one
Fig. 1 is the flow chart of the manufacture method of a kind of curved surface cover plate in the embodiment of the present invention one. As it is shown in figure 1, the manufacture method of this curved surface cover plate specifically may include steps of:
Step 11, plastic material is carried out injection moulding compression process, to form curved surface plastic plate.
Wherein, plastic material refers to polymer for basis, after addition additive under uniform temperature, pressure, the processed solid material moulding the type of making or crosslinking curing molding and obtain, if plastic material can be PC (Polycarbonate, Merlon), PMMA (PolymethylMethacrylate, polymethyl methacrylate) or PC and PMMA composite board.
In order to make curved surface (3D) cover plate of intelligent terminal have high transmission rate and the advantage such as stress is little, exemplary, plastic material can be 80-90MPa for hot strength, stretch modulus is 2900-3200MPa, bending strength is 110-120MPa, bending modulus is 2900-3200MPa, and light transmittance is 90%, and forming temperature is the high impact-resistant PMMA material of 230-270 DEG C; Or, plastic material is hot strength is 80-85MPa, and stretch modulus is 2700-2900MPa, and bending strength is 105-110MPa, and bending modulus is 2700-2900MPa, and light transmittance is 90%, and forming temperature is the high rigidity PC material of 240-280 DEG C. Further, the pencil hardness of high impact-resistant PMMA material is 3H (1kgf), namely with 3H hardness pencil, the lines of 3 1.0 �� 0.2cm length are marked from different directions on high impact-resistant PMMA material sample surface with 45 degree of angles and load 1kg power, after wiping pencil vestige with rubber, high impact-resistant PMMA material sample surface does not have cut and scuffing. The pencil hardness of high rigidity PC material is 2H (1kgf), namely with 2H hardness pencil, the lines of 3 1.0 �� 0.2cm length are marked from different directions on high rigidity PC material sample surface with 45 degree of angles and load 1kg power, after wiping pencil vestige with rubber, high rigidity PC material sample surface does not have cut and scuffing.
Exemplary, if plastic material is high impact-resistant PMMA material, following parameter can be adopted: mold temperature is 60-80 DEG C, injection temperature 250-280 DEG C, injecting rate 250-300cm3/s, compression distance 1-3mm, time delay 0s, compression stress 500-600T, compression speed 0.5-1.5cm/s, plastic material is carried out injection moulding compression process, to form curved surface plastic plate; If injected plastics material is high rigidity PC material, following parameter can be adopted: mold temperature is 60-80 DEG C, injection temperature 250-280 DEG C, injecting rate 250-300cm3/s, compression distance 1-3mm, time delay 0s, compression stress 500-600T, compression speed 0.5-1.5cm/s, carries out injection moulding compression process to plastic material, to form curved surface plastic plate.High impact-resistant PMMA material or high rigidity PC material are carried out injection moulding compression process by the present embodiment, to form curved surface plastic plate, the injection moulding compression process adopted is compared to making the high-temperature thermo-compression formation technique that bend glass adopts in prior art, there is the manageable advantage of precision, the form and the big I that make curved surface plastic plate are obtained by mold injection according to design requirement, as can injection moulding to obtain thickness be 1.2mm, length is 155mm, width is 80mm, tensile elongation is 2.5mm and R angular radius is the curved surface plastic plate of 3mm, and the injection pressure of plastic material can be eliminated, avoid the deformation of curved surface plastic plate or there is surface rainbow stricture of vagina.
Silication cure process is made in step 12, front to described curved surface plastic plate, to form hardened layer in the front of described curved surface plastic plate.
Generally using the concave surface of curved surface plastic plate as front, using the convex surface of curved surface plastic plate as the back side. Concrete, adopt glass, epoxy resin and coupling agent, silication cure process is made in the front of curved surface plastic plate, to form hardened layer in the front of curved surface plastic plate. The present embodiment is formed in the front of curved surface plastic plate hardened layer, makes the front of curved surface plastic plate have high scratch resistance energy.
Step 13, employing spraying, laser carving and numerical control processing technology, form ornamental area at the back side of described curved surface plastic plate.
Can not or be difficult to carry out printed decoration to curved surface cover plate, thus the present embodiment adopts spraying coating process form the color of required color or superposition at the back side of curved surface plastic plate, and adopt laser carving technique to remove the color of viewing area, to obtain transparent viewing area, also adopting numerical control processing technology to remove extraneous region and region, position, hole, its region, mesopore position can be shooting region, head bore position, region, position, physical button hole, region, speaker hole position and region, position, Mike hole etc.
The technical scheme that the present embodiment provides, by plastic material being carried out injection moulding compression process, to form curved surface plastic plate, bend glass is formed compared to prior art adopts high-temperature thermo-compression formation technique, there is stress little, easy-formation and low cost and other advantages, silication cure process is made in the front of curved surface plastic plate, to form hardened layer in the front of curved surface plastic plate, process compared to bend glass surface is ground in prior art and polishing etc., there is high scratch resistance, namely, embodiments provide a kind of high scratch resistance, stress is little, easy-formation and the low curved surface cover plate of cost.
Embodiment two
On the basis of above-described embodiment one, present embodiments provide the manufacture method of a kind of curved surface cover plate, the present embodiment is further qualified at the front of curved surface plastic plate formation hardened layer. Fig. 2 is the flow chart of the manufacture method of a kind of curved surface cover plate in the embodiment of the present invention two, as in figure 2 it is shown, the manufacture method of this curved surface cover plate specifically may include steps of:
Step 21, plastic material is carried out injection moulding compression process, to form curved surface plastic plate.
Step 22, glass powder is hydrolyzed into glass colloid.
In the present embodiment, glass powder can be nano-powder, and particle diameter is 0.05-1um.
Step 23, described glass colloid is placed in epoxy resin, and adds silane coupler and catalyst, be agitated to form compositions.
In the present embodiment, epoxy resin can include at least one in glycidyl ether type epoxy resin, glycidyl ester epoxy resin and glycidyl amine epoxy resin, silane coupler can include at least one in vinyl silanes, amino silane and methacryloxypropyl silane, catalyst can be tetraethyl orthosilicate, the effect of catalyst is to promote that silicon links with carbon atom, increases the adhesive force of composition coating. Further, glass colloid content in the composition is 20%-40%, and epoxy resin content in the composition is 40-60%, and silane coupler content in the composition is 0.5-2%, and catalyst content in the composition is 0.5-2%.Concrete, glass colloid is placed in epoxy resin, and after adding silane coupler and catalyst, uses high speed rotating dispersion machine, be stirred with rate of dispersion 2000-6000 rev/min, to obtain compositions.
Step 24, described compositions is coated in the front of described curved surface plastic plate, the described hardened layer of cured formation.
In the present embodiment, adopting the techniques such as spraying, dip-coating or showering, compositions is coated in the front of curved surface plastic plate, carries out baking-curing subsequently, solidification temperature is 40-80 DEG C, and hardening time is 0.5H-1H, to form hardened layer.
It should be noted that before compositions is coated in the front of curved surface plastic plate, also need to clean curved surface plastic plate, concrete, adopt ultrasonic cleaning curved surface plastic plate 1-5min.
Step 25, employing spraying, laser carving and numerical control processing technology, form ornamental area at the back side of described curved surface plastic plate.
The technical scheme that the present embodiment provides, by plastic material being carried out injection moulding compression process, to form curved surface plastic plate, glass powder, epoxy resin, silane coupler and catalyst is adopted to form compositions, and compositions is coated in the front of curved surface plastic plate, cured formation hardened layer, adopt spraying, laser carving and numerical control processing technology subsequently, form ornamental area at the back side of described curved surface plastic plate, specifically provide a kind of curved surface cover plate with high scratch resistance surface.
Embodiment three
On the basis of above-described embodiment one and embodiment two, present embodiments provide the manufacture method of a kind of curved surface cover plate, the present embodiment is further qualified at the back side of curved surface plastic plate formation ornamental area. Fig. 3 a is the flow chart of the manufacture method of a kind of curved surface cover plate in the embodiment of the present invention three, and as shown in Figure 3 a, the manufacture method of this curved surface cover plate specifically may include steps of:
Step 31, plastic material is carried out injection moulding compression process, to form curved surface plastic plate.
Silication cure process is made in step 32, front to described curved surface plastic plate, to form hardened layer in the front of described curved surface plastic plate.
Step 33, employing spraying coating process, form ink ornamental area at the back side of described curved surface plastic plate.
Form required color at the back side of curved surface plastic plate, with reference to Fig. 3 b, for required color for white, adopt spraying coating process to form white ink ornamental area 310 at the back side of curved surface plastic plate.
Step 34, employing laser carving technique, remove the ink decoration in the viewing area of described curved surface plastic plate, to obtain Transparence Display region.
With reference to Fig. 3 c, adopt laser carving technique, remove the white ink decoration in the viewing area 320 of curved surface plastic plate, to obtain Transparence Display region 320.
Step 35, employing numerical control processing technology, form region, position, hole, to obtain curved surface cover plate on the curved surface plastic plate comprising described Transparence Display region.
With reference to Fig. 3 d, adopt numerical control processing technology, the curved surface plastic plate comprise Transparence Display region 320 forms region, position, hole 330, to obtain curved surface cover plate.
The technical scheme that the present embodiment provides, by plastic material being carried out injection moulding compression process, to form curved surface plastic plate, silication cure process is made in the front of curved surface plastic plate, to form hardened layer in the front of curved surface plastic plate, and adopt spraying, laser carving and numerical control processing technology, form ornamental area at the back side of curved surface plastic plate and specifically provide a kind of curved surface cover plate with ink ornamental area.
The embodiment of the present invention additionally provides a kind of curved surface cover plate, and including the curved surface plastic plate formed through injection moulding compression process, the front of described curved surface plastic plate is provided with hardened layer, and the back side of described curved surface plastic plate is provided with ornamental area.
The curved surface cover plate provided in the embodiment of the present invention is carried out pencil hardness test: adopt surface to have the pencil of high impact-resistant PMMA material and high rigidity PC material, draw the lines of 31 �� 0.2cm length from different directions in the front of curved surface cover plate with 45�� angle and load 500g power, after wiping pencil vestige with rubber, 7H pencil does not stay cut or 8H pencil to leave shadow scratch; And curved surface cover plate is carried out steel wool test: with the steel wool of 20mm*20mm at the long 30-40mm lines of the front of curved surface cover plate friction, steel wool model is #0000, and pressure is 1000g, test frequency is 35-50 beat/min, finding after tested, rubbing 2500 times, curved surface lid surface is without scratch. Therefore the present embodiment is improve the hardness in the front of curved surface cover plate by hardened layer.
The curved surface cover plate provided in the embodiment of the present invention is carried out stress test: under polarisation sunglasses, it has been found that the surface of the curved surface cover plate made in the present embodiment, without obvious rainbow stricture of vagina, therefore this embodiment reduces the stress of curved surface cover plate.
The embodiment of the present invention additionally provides a kind of mobile terminal. This mobile terminal includes the curved surface cover plate that any embodiment of the present invention provides.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle. It will be appreciated by those skilled in the art that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute without departing from protection scope of the present invention. Therefore, although the present invention being described in further detail by above example, but the present invention is not limited only to above example, when without departing from present inventive concept, other Equivalent embodiments more can also be included, and the scope of the present invention is determined by appended right.
Claims (11)
1. the manufacture method of a curved surface cover plate, it is characterised in that including:
Plastic material is carried out injection moulding compression process, to form curved surface plastic plate;
Silication cure process is made in the front of described curved surface plastic plate, to form hardened layer in the front of described curved surface plastic plate;
Adopt spraying, laser carving and numerical control processing technology, form ornamental area at the back side of described curved surface plastic plate.
2. method according to claim 1, it is characterized in that, described plastic material is hot strength is 80-90MPa, stretch modulus is 2900-3200MPa, bending strength is 110-120MPa, bending modulus is 2900-3200MPa, and light transmittance is 90%, and forming temperature is the high impact-resistant PMMA material of 230-270 DEG C; Or,
Described plastic material is hot strength is 80-85MPa, and stretch modulus is 2700-2900MPa, and bending strength is 105-110MPa, and bending modulus is 2700-2900MPa, and light transmittance is 90%, and forming temperature is the high rigidity PC material of 240-280 DEG C.
3. method according to claim 2, it is characterised in that plastic material is carried out injection moulding compression process, to form curved surface plastic plate, including:
If described plastic material is high impact-resistant PMMA material, adopt following parameter: mold temperature is 60-80 DEG C, injection temperature 250-280 DEG C, injecting rate 250-300cm3/s, compression distance 1-3mm, time delay 0s, compression stress 500-600T, compression speed 0.5-1.5cm/s, carries out injection moulding compression process to described plastic material, to form curved surface plastic plate;
If described injected plastics material is high rigidity PC material, adopt following parameter: mold temperature is 60-80 DEG C, injection temperature 250-280 DEG C, injecting rate 250-300cm3/s, compression distance 1-3mm, time delay 0s, compression stress 500-600T, compression speed 0.5-1.5cm/s, carries out injection moulding compression process to described plastic material, to form curved surface plastic plate.
4. method according to claim 1, it is characterised in that silication cure process is made in the front of described curved surface plastic plate, to form hardened layer in the front of described curved surface plastic plate, including:
Glass powder is hydrolyzed into glass colloid;
Described glass colloid is placed in epoxy resin, and adds silane coupler and catalyst, be agitated to form compositions;
Described compositions is coated in the front of described curved surface plastic plate, the described hardened layer of cured formation.
5. method according to claim 4, it is characterised in that described glass powder is nano-powder, particle diameter is 0.05-1um, and described glass colloid content in the composition is 20%-40%.
6. method according to claim 4, it is characterized in that, described epoxy resin includes at least one in glycidyl ether type epoxy resin, glycidyl ester epoxy resin and glycidyl amine epoxy resin, and described epoxy resin content in the composition is 40-60%.
7. method according to claim 4, it is characterised in that described silane coupler includes at least one in vinyl silanes, amino silane and methacryloxypropyl silane, and described silane coupler content in the composition is 0.5-2%.
8. method according to claim 4, it is characterised in that described catalyst is tetraethyl orthosilicate.
9. the method according to any one of claim 1-8, it is characterised in that adopt spraying, laser carving and numerical control processing technology, forms ornamental area at the back side of described curved surface plastic plate, including:
Adopt spraying coating process, form ink ornamental area at the back side of described curved surface plastic plate;
Adopt laser carving technique, remove the ink decoration in the viewing area of described curved surface plastic plate, to obtain Transparence Display region;
Adopt numerical control processing technology, the curved surface plastic plate comprising described Transparence Display region forms region, position, hole, to obtain curved surface cover plate.
10. a curved surface cover plate, it is characterised in that including the curved surface plastic plate formed through injection moulding compression process, the front of described curved surface plastic plate is provided with hardened layer, and the back side of described curved surface plastic plate is provided with ornamental area.
11. a mobile terminal, it is characterised in that include the curved surface cover plate described in claim 10.
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| CN201610008055.6A CN105643968B (en) | 2016-01-04 | 2016-01-04 | Preparation method, curved surface cover plate and the mobile terminal of curved surface cover plate |
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| CN201610008055.6A CN105643968B (en) | 2016-01-04 | 2016-01-04 | Preparation method, curved surface cover plate and the mobile terminal of curved surface cover plate |
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| CN107813518A (en) * | 2017-11-02 | 2018-03-20 | 珠海市魅族科技有限公司 | Mobile phone bottom and its processing method and mobile phone |
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| CN109572024A (en) * | 2018-11-21 | 2019-04-05 | Oppo（重庆）智能科技有限公司 | The manufacturing method of the shell of electronic device, the shell of electronic device and electronic device |
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| CN106393555A (en) * | 2016-09-22 | 2017-02-15 | 宇龙计算机通信科技(深圳)有限公司 | Method for processing mobile phone shell, mobile phone shell and mobile phone |
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| CN107813518A (en) * | 2017-11-02 | 2018-03-20 | 珠海市魅族科技有限公司 | Mobile phone bottom and its processing method and mobile phone |
| CN109367040A (en) * | 2018-09-28 | 2019-02-22 | 东莞华晶粉末冶金有限公司 | Intelligence wearing face-piece and preparation method thereof |
| CN109367040B (en) * | 2018-09-28 | 2021-06-04 | 东莞华晶粉末冶金有限公司 | Intelligent wearable shell and manufacturing method thereof |
| CN109572024A (en) * | 2018-11-21 | 2019-04-05 | Oppo（重庆）智能科技有限公司 | The manufacturing method of the shell of electronic device, the shell of electronic device and electronic device |
| CN109873884A (en) * | 2019-02-22 | 2019-06-11 | 努比亚技术有限公司 | A kind of flexibility screen assembly, flexible screen mould group and wearable device |
| CN110505327A (en) * | 2019-08-26 | 2019-11-26 | Oppo广东移动通信有限公司 | Shell, electronic equipment and control method |
| CN110505327B (en) * | 2019-08-26 | 2021-04-02 | Oppo广东移动通信有限公司 | Shell, electronic equipment and control method |
| CN112706533A (en) * | 2019-10-24 | 2021-04-27 | 三星显示有限公司 | Glass cover plate and method for producing a glass cover plate |
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| CN112562516A (en) * | 2020-12-23 | 2021-03-26 | Oppo广东移动通信有限公司 | Cover plate for display screen, display screen and preparation method of display screen |
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