CN110272196A - Glass shell, preparation method and electronic equipment - Google Patents
Glass shell, preparation method and electronic equipment Download PDFInfo
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- CN110272196A CN110272196A CN201910593505.6A CN201910593505A CN110272196A CN 110272196 A CN110272196 A CN 110272196A CN 201910593505 A CN201910593505 A CN 201910593505A CN 110272196 A CN110272196 A CN 110272196A
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- Prior art keywords
- glass shell
- crude product
- hot bending
- side wall
- glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
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Abstract
This application discloses glass shell, preparation method and electronic equipments.This method comprises: cutting process is carried out to plate glass, to obtain hot bending raw material plate；Hot bending shape processing is carried out to the hot bending raw material plate, to obtain glass shell crude product, the glass shell crude product has a bottom surface, and the side wall being connected with the bottom surface, and the bending angle between the side wall and the bottom surface is greater than 70 degree；Second cutting process is carried out to the glass shell crude product, to obtain the glass shell.The glass board material that the bending angle between side wall and the bottom surface is greater than 70 degree easily can be obtained by hot bending as a result, and this method yields is higher, it is bad that the corner of the adjacent two side walls of shell is less prone to breakage etc..
Description
Technical field
This application involves field of electronic devices, and in particular, to glass shell, preparation method and electronic equipment.
Background technique
Current glass board material, in particular for the glass plate of the electronic equipments such as mobile phone cover board (TP cover board and battery cover)
Material is mostly to be formed by flat sheet by moulding process such as hot bendings.The method for currently forming glass board material is mostly to pass through heat
Rigid die under the conditions of state is bent, or is vacuumized in a mold by unilateral side molded by atmosphere.Wherein, mold is bent
The precision of glass board material prepared by mode cannot be guaranteed, and there are tangerine line, bumps and impression etc. are bad for appearance.And unilateral pumping is very
Empty method is more demanding to mold and technique.Also, above-mentioned hot bending shape technique is difficult to prepare between side wall and bottom surface
Glass board material with large curved angle, it is difficult to meet the integrated demand of current casting of electronic device.
Therefore, current glass shell, preparation method and electronic equipment are still to be improved.
Summary of the invention
The application is intended to alleviate or even solve at least one of following technical problem at least to some extent:
In the one aspect of the application, present applicant proposes a kind of methods for preparing glass shell.This method comprises: to flat
Glass sheet carries out cutting process, to obtain hot bending raw material plate；Hot bending shape processing is carried out to the hot bending raw material plate, to obtain glass
Glass shell crude product, the glass shell crude product have a bottom surface, and the side wall being connected with the bottom surface, the side wall and institute
The bending angle stated between bottom surface is greater than 70 degree；Second cutting process is carried out to the glass shell crude product, to obtain the glass
Shell.The glass board material that the bending angle between side wall and the bottom surface is greater than 70 degree easily can be obtained by hot bending as a result, and
This method yields is higher, and it is bad that the angle shell R (corners of adjacent two side walls) are less prone to breakage etc..
In the another aspect of the application, present applicant proposes a kind of glass shells.The glass shell is using noted earlier
Method preparation.Therefore, the glass shell have whole features for having of mentioned-above method shell obtained and
Advantage, details are not described herein.
At the another aspect of the application, present applicant proposes a kind of glass shells.The glass shell has a bottom surface, with
And the side wall being connected with the bottom surface, the bending angle between the side wall and the bottom surface are greater than 70 degree, the glass shell is
It is obtained by hot bending shape.Easily the bending angle between side wall and the bottom surface can be obtained by hot bending as a result, to be greater than
70 degree of glass board material, and the product yield of the glass shell is higher, the angle shell R (corners of adjacent two side walls) no
It is bad easily to there is breakage etc..
At the another aspect of the application, present applicant proposes a kind of electronic equipment.The electronic equipment includes: display screen and master
Plate, the display screen and the mainboard are connected；Shell, the shell limit accommodation space, the display screen and the master
In plate storage and the accommodation space, and the light emission side of the display screen faces away from the side setting of the accommodation space, institute
At least part for stating shell is made of mentioned-above glass shell.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the application will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the flow diagram for the method that the application proposes；
Fig. 2 shows the part flow diagram for the method that the application proposes；
Fig. 3 shows the structural schematic diagram for the glass shell that the application proposes；
Fig. 4 shows the structural schematic diagram for the glass shell that the application proposes；
Fig. 5 shows the part flow diagram for the method that the application proposes；
Fig. 6 shows the part flow diagram for another method that the application proposes；
Fig. 7 shows the structural schematic diagram for the electronic equipment that the application proposes；
Fig. 8 shows the digital photograph of the glass shell crude product with residual press back；
Fig. 9 shows the digital photograph for the glass shell crude product that corner crumbles.
Description of symbols:
100: glass shell；110: side wall；120: bottom surface；10: hot bending raw material plate；20 ': glass shell crude product precast body；
20: glass shell crude product；500: the first molds；600: the second molds；50: the first hot bending dies；60: the second hot bendings
Mold；700: the first secondary hot bending dies；800: second secondary hot bending die；15: one-pass molding crude product；11: one-pass molding is thick
Product side wall；12: one-pass molding crude product bottom surface；1100: electronic equipment；1000: shell.
Specific embodiment
Embodiments herein is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the application, and should not be understood as the limitation to the application.
In the one aspect of the application, present applicant proposes a kind of methods for preparing glass shell.With reference to Fig. 1, this method
Include:
S100: cutting process is carried out to plate glass, to obtain hot bending raw material plate
According to an embodiment of the present application, in this step, cutting process is carried out to plate glass first, to obtain hot bending original
Flitch.Specifically, in this step, sawing sheet can be carried out to plate glass and finishing impression is handled, form the heat with certain surplus
Curved raw material plate, in order to form the glass shell according to the embodiment of the present application subsequently through hot bending shape.
According to the specific embodiment of the application, after carrying out finishing impression, in order to further increase the operation effect of subsequent step
Fruit can also carry out including but is not limited to the operation such as to clear off, clean to the glass by finishing impression processing.It, can be with for example, specifically
Sawing sheet first is carried out to plate glass, is cut to required shape.Needed when sawing sheet (can be cut and be realized by CNC)
The surplus of reserved 0.02-0.05mm is prepared for the second cutting after hot bending.Then, it can use finishing impression board and carry out finishing impression
Processing.For example, can successively carry out 400 purposes slightly repairs refine with 1000 mesh, side then is carried out to by the glass of finishing impression
The processing of polishing.In the polishing treatment of side, the unilateral removal amount of glass material can be 0.020~0.03mm, such as can be
0.025mm.Polishing can be carried out by the way of pig hair and mill skin processing.For example, according to some specific embodiments of the application,
The polishing that can carry out 500-700 seconds to each edge first with hog hair brush carries out each edge followed by mill skin
Processing in 150-350 seconds.Used polish abrasive is not particularly limited in the process, for example, can use D50 partial size for
1.722 the CeO of micron2(red milling) carries out, and milling dosage can be 0.8g/pcs.About the processing of above-mentioned sawing sheet, finishing impression processing
Concrete operations with subsequent polishing treatment are not particularly limited, and those skilled in the art can be according to plate glass, and needs
The specific size of the hot bending raw material plate of formation is controlled to adjust.For example, the ruler of the actual hot bending raw material plate of acquisition can be enabled
It is very little, and design hot bending raw material plate size length and width dimensions tolerance within the scope of +/- 0.02mm.
S200: hot bending shape processing is carried out to the hot bending raw material plate, to obtain glass shell crude product
According to an embodiment of the present application, in this step, hot bending shape processing is carried out to hot bending raw material plate, to obtain glass
Shell crude product.Specifically, it can use hot bending shape processing, hot bending raw material plate be heated to the softening temperature of glass, and utilize
Glass bending after softening is formed a bottom surface by mold, and the glass shell crude product for the side wall being connected with the bottom surface, side
Bending angle between wall and bottom surface is greater than can be with 70 degree.In some examples of the application, glass shell crude product (or ultimately form
Glass shell) can have 4 side walls, 4 bending angles between side wall and bottom surface can be all equal, can not also whole phases
Deng.For example, the bending angle between the two side walls being oppositely arranged and bottom surface can be equal, adjacent two side walls in 4 side walls
Bending angle between bottom surface can be unequal.The bending angle of 4 side walls can be all larger than 70 degree, and the glass formed as a result, can
To be an integral structure, the structures such as the center being additionally arranged can be saved, there is good texture.Those skilled in the art can
Understand, the bending angle angle between the side wall quantity and bottom surface of the glass shell crude product formed in the step, as finally
Side wall quantity, the bending angle angle of the glass shell of acquisition.For example, may finally be formed using this method with 4 with reference to Fig. 4
A side wall 110 being connected with each other.
It should be strongly noted that the term " bending angle " in the application, refers in particular to the angle between side wall and bottom surface, such as scheme
The angle a shown in 3 (schematic cross-sections in the face A-A ' along Fig. 4) is specifically the folder where side wall and bottom surface between plane
Angle.In some examples of the application, bottom surface can be plane, or can also be cambered surface.When bottom surface includes planar portions and arc
When facial, plane where bottom surface is the plane where planar portions, and when bottom surface generally cambered surface, plane where bottom surface is bottom surface
Plane at 110 raised highest points where tangent line.Side wall may be plane or be cambered surface, when the outer surface of side wall is (far from side
The one side in the cell type space that wall and bottom surface are limited) when being cambered surface, tangent line and bottom surface institute on wall outer surface at any point
The maximum value in angle between plane is the bending angle (a as shown in Figure 3) of the side-walls.
According to some examples of the application, in this step, can by by hot bending raw material plate be placed in hot bending die at
In type chamber, and hot bending raw material plate is heated to softening, to form glass shell crude product.Specifically, with reference to (a) in Fig. 5, hot bending
Mold may include the first mold 500 and the second mold 600 matched, and the two mutual cooperation limits forming cavity.Hot bending
Raw material plate 10 is placed between the first mold 500 and the second mold 600, by hot bending raw material plate 10 be heated to its softening temperature it
Afterwards, two molds towards moving each other, i.e., using protrusion and the second mould opposite with side wall extending direction in the first mold
Tool neutralizes the opposite pit of side wall extending direction, and hot bending raw material plate 10 is bent, and forms bottom surface and side wall.
It should be strongly noted that in this step, the specific structure of hot bending die is not particularly limited, as long as being capable of shape
At previously described glass shell crude product.For example, formed after the glass shell crude product at biggish bending angle for convenience,
It is operated convenient for the demoulding etc. between the first mold and the second mold, with reference to Fig. 5, the first mold 500 be can be by having certain heat
What the material of swollen shrinkage performance was formed.It such as specifically, can be 0.1%~0.2% by thermal expansion coefficient at 750 degrees c
Material is formed.As a result, before the first mold 500 is uninflated, formed between the first mold 500 and the second mold 600
The volume of forming cavity can be greater than the volume of the glass shell crude product formed, and with reference to (b) in Fig. 5, glass shell at this time is thick
It can have a fixed gap between product precast body 20 ' and the second mold 600.More than glass transition temperature, first can be relied on
Mold 500 expands, and the plate of softening is squeezed towards 600 side of the second mold, as shown in (c) in Fig. 5.By
This, can form the biggish glass shell crude product 20 in bending angle, or even can form side wall to bottom surface direction with certain back bending angle
Shape.Then, the first mold is shunk in cooling procedure, therefore between the first mold 500 and glass shell crude product 20
A fixed gap can be formed, convenient for the demoulding of the first mold 500.
Alternatively, at least one of the first mold and second mold can have multiple submodules that can be dismantled respectively
Tool.As a result, after forming the biggish glass shell crude product in bending angle, multiple submodule tools can be successively removed, by institute
Glass shell crude product is stated to take out from hot bending die.
Alternatively, hot bending die may also include a hot bending die and secondary hot bending die with reference to Fig. 6.Specifically, it refers to
(a) in Fig. 6, can be first with including the first hot bending dies 50 and the second hot bending dies 60, to hot bending raw material plate
10 carry out a hot bending shape processing, to form the one-pass molding crude product 15 with side wall 11 and bottom surface 12, with reference in Fig. 6
(b), the bottom surface of one-pass molding crude product has the protrusion towards stripping direction.Then, with reference to (c) in Fig. 6, using second heat
Bending mould, the secondary hot bending die 700 of first as shown in the figures and second secondary hot bending die 800, to one-pass molding crude product
Carry out secondary hot bending shape processing so that the bottom surface of one-pass molding crude product by with stripping direction opposite effect power (such as Fig. 6
In (c) in direction shown by arrow), and enable bottom surface in hot bending deformation process, drive the side wall court of one-pass molding crude product
Rotated close to the direction of bottom center, it is thick greater than 70 degree of the glass shell with the bending angle that is formed between side wall and bottom surface
Product.As a result, in a hot bending shape, the side wall of bending angle smaller (being, for example, less than 70 degree, such as 60 degree or so) can be formed, simultaneously
The bottom surface of one-pass molding crude product has protrusion.Then in secondary hot bending shape, secondary hot bending die is only to the convex of bottom surface center
Part is played to be heated, as a result, in second heat o ing, a hot bending shapes the side wall to be formed and does not deform, but
Plane is formed by by convex portion, drives rigidity by undeformed rigid portion bottom surface (a part being connected with side wall)
Side wall is tilted towards towards the direction of bottom center.As a result, in finally formed glass shell crude product, between bottom surface and side wall
Angle become larger, and then the biggish glass shell crude product in acquisition bending angle that can be relatively simple.
According to an embodiment of the present application, it in order to further increase the glass shell crude product quality for utilizing this method to be formed, mentions
The yields for the glass shell that usury is prepared with this method can also enable the second mold close to the forming cavity in this step
There is fillet on the surface of side.By taking the glass shell crude product of formation has 4 side walls as an example, fillet, which can be located at, to be used to form
The corner that the adjacent two side walls of glass shell crude product are in contact with bottom surface, the radius of curvature of fillet are 0.7-1mm, such as can be with
For 0.9mm.Thus, it is possible to which the glass shell crude product for alleviating formation forms showing for press back and the angle R gravure at the positions such as upper short side
As.That is: by the way that fillet is arranged close to forming cavity side in the second mold, the glass shell crude product of formation can be alleviated in short side one
It is not round and smooth surface at turning (angle R) inner surface with press back and two adjacent side walls on the side wall of side, and it is residual
The case where there are mold shapes.By the turning for the glass shell crude product that the second mold and the first mold of not set fillet are formed,
It is possible that remaining press back (mold shape mark, such as the region that black marker is marked in figure) as shown in Figure 8.
According to some embodiments of the present application, in order to preferably obtain, regular shape, lines are round and smooth, differ with predetermined size
The enclosure corner that lesser adjacent two side walls are constituted can be arranged on the surface of forming cavity side in the first mold
Lug boss.Specifically, lug boss, which can be located at, is used to form what the adjacent two side walls of glass shell crude product were in contact with bottom surface
Corner, the thickness of lug boss can be 0.01~0.02mm.Thus, it is possible to prevent the forming process in glass shell crude product
In, since folding line etc. is bad caused by the pressing of single angle is not in place.That is: with the first mold of not set raised portion other
Position is compared, and lug boss (the R Angle Position for being correspondingly formed glass shell) can carry out certain compensation, to increase at the position
The volume under pressure of one mold.According to some specific embodiments of the application, the height of lug boss protrusion can be 0.015mm.It needs
It especially says, which is used to improve the mold volume under pressure of R Angle Position, therefore " thickness of lug boss " should in the application
Be interpreted as the height that the lug boss protrudes from mold other parts, rather than at the position the first mold absolute thickness.
According to other embodiments of the application, there is point, pit in the glass shell surface finally obtained in order to prevent
It, can also be when carrying out hot bending shape processing etc. bad, the environment of service condition and hot bending to mold controls.Tool
Body, after being used for multiple times, mold occurs oxidation rear surface quality and is deteriorated hot bending die.The defect formed as a result, is in hot bending
In the process in transcription to material, so that the glass shell crude product surface after hot bending shape has point, pit etc. bad.Cause
This needs the number for carrying out hot bending to mold to record, in operation to supervise in time to the case where die surface
Control.Similarly, the workshop condition for carrying out hot bending shape also will affect the surface quality for the glass shell crude product to be formed, such as workshop
In the impurity such as dust, may be covered during hot bending in glass surface.Therefore, the dustless of workshop can suitably be promoted
Class requirement, for example, above-mentioned hot bending forming processing can be carried out in thousand grades of dust-free rooms.
S300: the second cutting process is carried out to the glass shell crude product, to obtain the glass shell
According to an embodiment of the present application, in this step, the second cutting process is carried out to the glass shell crude product, to obtain
Obtain the glass shell.Specifically, due to using this method formed glass shell bending angle it is bigger, due to hot bending at
The deformation that hot bending raw material plate occurs during type is larger, therefore the side wall of glass shell crude product can be due in the side far from bottom surface
The accumulation of hot bending formation flash.Therefore, in this step, to side wall, remotely face side carries out the second cutting process, to obtain
The glass shell that shape is consistent with predetermined shape.
Specifically, by taking the glass shell crude product includes 4 side walls being connected with each other as an example, in this step, the second cutting
Processing may include the operation of the clout for the corner that two side walls are in contact in glass shell crude product.Since two side walls connect
The corner of touching, stress is larger and forms the glass material of two side walls hot bending deformation, therefore the flash at the position has occurred
It is more serious.More specifically, with reference to Fig. 2, which may include: to further increase the production yield of the step
S310: clout of the side wall far from the bottom surface side is removed with the first cutting speed
In other words, in this step, clout of the side wall far from one lateral roof of bottom surface is removed with the first cutting speed first.
S320: the clout for the corner that the side wall is in contact is removed with the second cutting speed
In other words, in this step, with the second cutting speed, the clout for the corner that two side walls are in contact is removed.
Also, the first cutting speed is greater than the second cutting speed.
Inventors have found that if the top at top and sidewall corner using identical cutting speed, to sidewall edge
Portion is cut, and it is bad in corner's generation chipping, broken etc. to be easy to cause glass shell crude product, such as shown in Figure 9
, since corner's stress is larger, and since the flash of corner is more serious, height herein wants a little higher than side wall
Edge, therefore when cutting speed is too fast, it is easy to cause the corner of entire glass shell crude product to crumble.In this application,
The speed of cutting speed can be realized by the feed speed for reducing the revolving speed of cutting tool or reducing at the position.
According to some embodiments of the present application, this method can also include: before carrying out second cutting process, in advance
First the step of forming through-hole on the bottom surface of the glass shell crude product.When carrying out the second cutting process, will have logical
The glass shell crude product in hole is fixed on sample stage by suction tank, and through-hole is avoided in the position where enabling suction tank.This field
Technical staff is, it is understood that the glass shell can be used to form the appearance shell of electronic equipment etc., therefore in shell
The structures such as upper needs setting sound transmission aperture, connecting hole.And when carrying out the second cutting process, need by glass shell crude product into
Row is fixed, and is then cut again.When thick to glass shell by the way of suction tank is arranged on sample fixed station and is evacuated
When product are fixed, the position where suction tank is avoided to the position of through-hole, can be excessively close apart from suction tank to avoid through-hole, and lead
Cause the case where the substances such as cutting fluid required for cutting process are accidentally inhaled by suction tank or through hole, so as to improve the
The effect of two cutting process, so can alleviate even solve due to the second cut quality it is not high caused by cut after cut end
Face has the problem of connecing knife step.
According to an embodiment of the present application, in order to further increase acquisition glass shell quality, in the second cutting process
Later, it can also be processed by shot blasting to the glass shell crude product Jing Guo the second cutting process.For example, polishing treatment can
To specifically include: the corner being in contact to two side walls of the glass shell crude product covers, and carries out first and throw
Light processing；And the second polishing treatment is carried out to the corner that two side walls of the glass shell crude product are in contact.It can be with
The time of the first polishing treatment is enabled to be greater than the time of second polishing treatment.Inventors have found that being thrown using aforesaid way
Light processing can be relieved since the bad of turned-down edge deformation occurs caused by polishing excessively at turning (angle R), so as to improve benefit
The product yield of glass shell is prepared with this method.Specifically, the concentration of polishing fluid used by polishing treatment can be greater than
1.15g/cm3.For example, polishing time can be 1500 ± 600 seconds, the polishing mill skin of PU material can be used, when polishing treatment
Mill pressure can be 120-450KG, and the revolving speed of mill can be 20-50rpm.Including but not limited to D50 partial size can be used to exist
1.722 the CeO of micron2(red milling), the dosage of polishing powder can be 3.6g/pcs.In addition, in order to further enhance polishing effect,
The volume under pressure of top polishing mill skin can suitably be increased in rotten-stone, such as push compensation rate to increase 1mm.It as a result, can be more
It is effectively removed the light residual cutter trade on glass shell surface, promotes the surface smoothness of glass shell.
At the another aspect of the application, present applicant proposes a kind of glass shells.The glass shell, which can be, utilizes front
The method preparation.The glass shell has whole features of previously described method glass shell obtained as a result,
And advantage, details are not described herein.For example, the glass shell can have the structure as shown in Fig. 3 and Fig. 4.
At the another aspect of the application, present applicant proposes a kind of glass shells.The glass shell can have as Fig. 3 with
And structure shown in Fig. 4.For example, the glass shell can have the complete of previously described method glass shell obtained
Portion's feature and advantage, details are not described herein.Specifically, which can have a bottom surface 120, and and bottom surface
120 connected side walls 110, the bending angle between side wall and the bottom surface is greater than 70 degree, and glass shell is to pass through hot bending shape
And obtain.
At the another aspect of the application, present applicant proposes a kind of electronic equipment.Specifically, with reference to Fig. 7, the electronic equipment
1100 may include display screen and mainboard (not shown), and display screen and mainboard are connected.Electronic equipment 1100 can also have
Shell 1000, shell 1000 limit accommodation space, display screen and mainboard storage in accommodation space, and the light emission side of display screen
Face away from the side setting of the accommodation space.At least part of shell 1000 can be by previously described glass shell
It constitutes.
It should be noted that the concrete type of electronic equipment is not particularly limited in the application.Illustratively, electronic equipment
It can be any one of various types of computer system devices that are mobile or portable and executing wireless communication.Specifically
, electronic equipment can be mobile phone or smart phone (for example, being based on iPhone TM, the phone based on Android TM),
Portable gaming device (such as Nintendo DS TM, PlayStation Portable TM, Gameboy Advance TM,
IPhone TM), laptop computer, PDA, portable Internet appliance, music player and data storage device, other hands
Holding equipment and wrist-watch, In-Ear Headphones, pendant, headphone etc., electronic equipment can also be other wearable
Equipment is (for example, such as electronic glasses, electronics clothes, electronics bracelet, electronics necklace, electronics are tatooed, electronic equipment or smartwatch
Headset equipment (HMD)).Electronic equipment can also be that any one of multiple electronic equipments, multiple electronic equipments include
But it is not limited to cellular phone, smart phone, other wireless telecom equipments, personal digital assistant, audio player, other media to broadcast
Put device, music recorder, video recorder, camera, other medium recorders, radio, Medical Devices, vehicle transport instrument, meter
Device, programmable remote control, pager, laptop computer, desktop computer, printer, netbook computer, individual digital is calculated to help
Reason (PDA), portable media player (PMP), Motion Picture Experts Group's (MPEG-1 or MPEG-2) audio layer 3 (MP3) are broadcast
Put device, portable medical device and digital camera and combinations thereof.In some cases, electronic equipment can execute multiple functions
(for example, playing music, showing video, store picture and send and receive call).If desired, electronic equipment can be with
It is such as cellular phone, media player, other handheld devices, watch equipment, pendant equipment, receiver device or other compacts
The portable device of portable device.
In the description of the present application, the orientation or positional relationship of the instructions such as term " on ", "lower" is based on the figure
Orientation or positional relationship is merely for convenience of description the application rather than requires the application that must be constructed and be grasped with specific orientation
Make, therefore should not be understood as the limitation to the application.For example, specifically, above-mentioned " upper surface " of the application can be glass base
After plate is used in electronic equipment, towards the surface in outside, " lower surface " can be towards the surface of electronic equipment internal.
In the description of this specification, the description of reference term " one embodiment ", " another embodiment " etc. means to tie
The embodiment particular features, structures, materials, or characteristics described are closed to be contained at least one embodiment of the application.At this
In specification, the schematic representation of the above terms does not necessarily have to refer to the same embodiment or example.Moreover, the tool of description
Body characteristics, structure, material or feature may be combined in any suitable manner in any one or more of the embodiments or examples.This
Outside, without conflicting with each other, those skilled in the art by different embodiments described in this specification or can show
The feature of example and different embodiments or examples is combined.In addition, it is necessary to illustrate, in this specification, term
" first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate meaning
The quantity of the technical characteristic shown.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (17)
1. a kind of method for preparing glass shell characterized by comprising
Cutting process is carried out to plate glass, to obtain hot bending raw material plate；
Hot bending shape processing is carried out to the hot bending raw material plate, to obtain glass shell crude product, the glass shell crude product has
One bottom surface, and the side wall being connected with the bottom surface, the bending angle between the side wall and the bottom surface are greater than 70 degree；
Second cutting process is carried out to the glass shell crude product, to obtain the glass shell.
2. the method according to claim 1, wherein hot bending shape processing includes:
The hot bending raw material plate is placed in the forming cavity of hot bending die, and the hot bending raw material plate is heated to softening, with shape
At the glass shell crude product,
The hot bending die includes the first mold and the second mold matched, and first mold has and the side wall prolongs
Contrary protrusion is stretched, second mold has the pit opposite with the side wall extending direction.
3. according to the method described in claim 2, it is characterized in that, second mold is in the table close to the forming cavity side
There is fillet, the fillet, which is located at, is used to form two adjacent side walls of the glass shell crude product and the bottom surface on face
The corner being in contact, the radius of curvature of the fillet are 0.7-1mm.
4. according to the method described in claim 2, it is characterized in that, first mold close to the forming cavity side surface
Upper have a lug boss, and the boss is in being used to form two adjacent side walls of the glass shell crude product and the bottom
The corner that face is in contact, the lug boss with a thickness of 0.01~0.02mm.
5. according to the described in any item methods of claim 2-4, which is characterized in that first mold is by 750 degrees c
The material that thermal expansion coefficient is 0.1%~0.2% is formed.
6. according to the described in any item methods of claim 2-4, which is characterized in that first mold and second mold
At least one of the submodules tool that can dismantle respectively with multiple, laggard the one of hot bending shape processing is carried out to the hot bending raw material plate
Step includes:
Multiple submodule tools are successively removed, the glass shell crude product is taken out from the hot bending die.
7. according to the described in any item methods of claim 2-4, which is characterized in that the hot bending die includes a hot bending die
And secondary hot bending die, forming the glass shell crude product includes:
Hot bending shape is carried out to the hot bending raw material plate using a hot bending die to handle, with formed have side wall and
The one-pass molding crude product of bottom surface, the bottom surface of the one-pass molding crude product have the protrusion towards stripping direction；
Secondary hot bending shape processing is carried out to the one-pass molding crude product using the secondary hot bending die, so that described primary
Form the bottom surface of crude product by with the stripping direction opposite effect power, and enable the bottom surface in hot bending deformation process, band
The side wall for moving the one-pass molding crude product is rotated towards the direction close to the bottom center, to be formed between side wall and bottom surface
Bending angle is greater than 70 degree of the glass shell crude product.
8. the method according to claim 1, wherein the glass shell crude product include 4 side walls that are connected with each other,
Second cutting process includes: the clout for the corner that two side walls are in contact in the removal glass shell crude product.
9. according to the method described in claim 8, it is characterized in that, second cutting process further comprises: described in removal
Clout of the side wall far from the bottom surface side,
Also, clout of the side wall far from the bottom surface side is removed with the first cutting speed, with the removal of the second cutting speed
The clout for the corner that two side walls are in contact, first cutting speed are greater than second cutting speed.
10. the method according to claim 1, wherein before carrying out second cutting process, in advance described
Through-hole is formed on the bottom surface of glass shell crude product,
And when carrying out second cutting process, the glass shell crude product with the through-hole is fixed by suction tank
Avoid the through-hole in position on sample stage, and where enabling the suction tank.
11. the method according to claim 1, wherein after second cutting process, to passing through described second
The glass shell crude product of cutting process is processed by shot blasting that the polishing treatment includes:
The corner being in contact to two side walls of the glass shell crude product covers, and carries out the first polishing treatment；
Second polishing treatment is carried out to the corner that two side walls of the glass shell crude product are in contact,
The time of first polishing treatment is greater than the time of second polishing treatment.
12. according to the method described in claim 10, it is characterized in that, the concentration of polishing fluid used by the polishing treatment is big
In 1.15g/cm3。
13. a kind of glass shell, which is characterized in that the glass shell is to utilize the described in any item methods of claim 1-12
Preparation.
14. a kind of glass shell, which is characterized in that the glass shell has a bottom surface, and be connected with the bottom surface
Side wall, the bending angle between the side wall and the bottom surface are greater than 70 degree,
The glass shell is obtained by hot bending shape.
15. glass shell according to claim 14, which is characterized in that be connected with each other and including 4 around the bottom surface
The side wall.
16. glass shell according to claim 14, which is characterized in that including multiple side walls, multiple side walls
At least one of, the bending angle between the bottom surface is 90 degree.
17. a kind of electronic equipment characterized by comprising
Display screen and mainboard, the display screen and the mainboard are connected；
Shell, the shell limit accommodation space, the display screen and mainboard storage in the accommodation space, and institute
The light emission side for stating display screen faces away from the side setting of the accommodation space, and at least part of the shell is wanted by right
Glass shell described in 13-16 is asked to constitute.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910593505.6A CN110272196A (en) | 2019-07-03 | 2019-07-03 | Glass shell, preparation method and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910593505.6A CN110272196A (en) | 2019-07-03 | 2019-07-03 | Glass shell, preparation method and electronic equipment |
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| CN114103186A (en) * | 2020-08-31 | 2022-03-01 | Oppo广东移动通信有限公司 | Method for preparing shell assembly, shell assembly and electronic device |
| CN114644448A (en) * | 2020-12-21 | 2022-06-21 | 余姚舜宇智能光学技术有限公司 | Curved glass and method for forming hole in curved glass |
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Application publication date: 20190924 |