CN107879642A - Bend glass and preparation method thereof and electronic equipment - Google Patents
Bend glass and preparation method thereof and electronic equipment Download PDFInfo
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- CN107879642A CN107879642A CN201711224264.5A CN201711224264A CN107879642A CN 107879642 A CN107879642 A CN 107879642A CN 201711224264 A CN201711224264 A CN 201711224264A CN 107879642 A CN107879642 A CN 107879642A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
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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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0075—Cleaning of glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/355—Temporary coating
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/365—Coating different sides of a glass substrate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Glass Compositions (AREA)
Abstract
The present invention relates to a kind of bend glass and preparation method thereof and electronic equipment.A kind of preparation method of bend glass, comprises the following steps：Plate glass is provided, plate glass has relative first surface and second surface, forms protective layer respectively over the first and second surface, and the material of protective layer includes exotic material；The plate glass for forming matcoveredn is subjected to hot bending processing, obtains heat-bending glass；The protective layer on heat-bending glass is removed, obtains bend glass.The preparation method of above-mentioned bend glass can avoid dust fall from dropping to surface of plate glass in hot bending processing procedure, effectively reduce the generation of pit and impression；Protective layer is formed at the surface of plate glass simultaneously, and plate glass surface in fetching process can be avoided to be scratched.Therefore, the preparation method of above-mentioned bend glass solves the problems, such as that bend glass produces pit, impression and scratched in process of production from root, the yields of bend glass can be improved into more than 20%.
Description
Technical field
The present invention relates to a kind of bend glass and preparation method thereof and electronic equipment.
Background technology
With the change of outward appearance esthetic requirement and the progress of technology of the electronic consumer markets to electronic equipment, curved surface
Glass gradually starts to be applied in electronic equipment.Cover plate of the bend glass as electronic equipment, be human visual and tactile most
The direct feel first received, it is the critical component of human-computer interaction experience.Bend glass can not only lift the outer of electronic equipment
Novelty is seen, outstanding touch-control feel can also be brought, bend glass has become the standard configuration of electronic equipment instantly at present.
Bend glass is produced using hot bending process more.In the technological process of hot bending, glass softening when synchronously by
To the pressure of mould, when the cleanliness factor in hot bending equipment is inadequate, dust fall can be caused to drop to surface of plate glass and produce pit
And impression；Meanwhile plate glass is also easier to scratch during picking and placeing.Because bend glass produces in process of production
Pit, impression and scratch the problems such as, cause the yields of bend glass there was only 60%, yields is relatively low.Currently for curved surface
The problem of glass surface easily produces pit, impression and scratched, mostly using the measure that hot bending equipment is placed in dust-free workshop
Produced, to reduce the quantity of dust fall.Meanwhile before the mould equipped with plate glass enters bringing-up section, use ion wind
Machine removes dust fall, adjusts temperature and pressure in hot bending section, to reduce the influence of pit and impression, but DeGrain, at present
Also solve the problems, such as that the yields of bend glass is relatively low without effective method in the industry.
The content of the invention
Based on this, it is necessary to provide a kind of preparation method of the higher bend glass of yields.
In addition, also provide a kind of bend glass and electronic equipment.
A kind of preparation method of bend glass, comprises the following steps：
Plate glass is provided, plate glass has relative first surface and second surface, in first surface and the second table
Protective layer is formed on face respectively, the material of protective layer includes exotic material；
The plate glass for forming matcoveredn is subjected to hot bending processing, obtains heat-bending glass；
The protective layer on heat-bending glass is removed, obtains bend glass.
The preparation method of above-mentioned bend glass is protected by being formed respectively on the first surface and second surface of plate glass
Sheath, then the plate glass for forming matcoveredn is subjected to hot bending processing, protective layer can block in hot bending processing procedure
Dirt, avoid dust fall from dropping to surface of plate glass in hot bending processing procedure, effectively reduce the generation of pit and impression；Protect simultaneously
Layer is formed at the surface of plate glass, and plate glass surface in fetching process can be avoided to be scratched.Therefore, above-mentioned curved surface glass
The preparation method of glass solves the problems, such as that bend glass produces pit, impression and scratched in process of production from root, can
The yields of bend glass is improved more than 20%.
In one of the embodiments, over the first and second surface respectively formed protective layer the step of be specially：
Slurry is respectively coated on first surface and second surface, cured processing, forms protective layer, wherein, slurry
Including exotic material and solvent.
In one of the embodiments, exotic material can at 750 DEG C retention property it is constant, and not with glass occur
Reaction；Or exotic material is modified polyimide.
In one of the embodiments, method slurry being respectively coated on first surface and second surface is selected from silk screen
One kind in printing, spraying, roller coating and spin coating；Or the step of curing process, is：It is heating and curing at 150 DEG C~240 DEG C；It is or molten
Agent is selected from least one of fourth lactones, methyl pyrrolidone and ethylene glycol monobutyl ether.
In one of the embodiments, the thickness of protective layer is 1.0 μm~4.5 μm.
In one of the embodiments, will be formed matcoveredn plate glass carry out hot bending processing the step of be specially：
The plate glass for forming matcoveredn is put into mould；
Under the atmosphere of protective gas, plate glass is heated and softened, then pressure is applied so that plate glass to mould
Bending.
In one of the embodiments, the one kind of protective gas in nitrogen, argon gas and helium；Or by plate glass
In the step of heating and softening, heating-up temperature is 650 DEG C~750 DEG C；Or in the step of applying pressure to mould, pressure 0.3MPa
~0.5MPa.
In one of the embodiments, remove heat-bending glass on protective layer the step of be specially：Heat-bending glass is placed in
Immersion treatment is carried out in liquid parting, wherein, liquid parting includes dimethyl acetamide and acetone.
The bend glass that a kind of preparation method by above-mentioned bend glass is prepared.
A kind of electronic equipment, including cover plate, cover plate include above-mentioned bend glass.
Brief description of the drawings
Fig. 1 is the flow chart of the preparation method of the bend glass of an embodiment.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the preferred embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more saturating
It is thorough comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
Body embodiment purpose, it is not intended that in limitation the present invention.
Referring to Fig. 1, the preparation method of the bend glass of an embodiment, comprises the following steps：
Step S110：Plate glass is provided, plate glass has relative first surface and second surface, in first surface
With protective layer is formed on second surface respectively.
Plate glass is non-safety glass.Specifically, plate glass is selected from sodium calcium plate glass, middle aluminium plate glass and height
One kind in aluminium plate glass.Preferably, plate glass is high alumina plate glass.High alumina plate glass is stable during hot bending
Property is higher, the problems such as will not rupturing.
In one of the embodiments, the thickness of plate glass is 0.20mm~1.10mm.
Wherein, the material of protective layer includes exotic material.The chemical property of exotic material is stable, can be at 750 DEG C
Lower retention property is constant, and is not reacted with glass.Specifically, exotic material is modified polyimide.
In one of the embodiments, over the first and second surface respectively formed protective layer the step of be：Will material
Slurry is respectively coated on first surface and second surface, cured processing, forms protective layer.Wherein, slurry includes high temperature resistant material
Material and solvent；Solvent be selected from fourth lactones (DMA), methyl pyrrolidone (NMP) and ethylene glycol monobutyl ether (BC) and at least one
Kind.Specifically, the mass volume ratio of exotic material and solvent is 20g:100mL~80g:100mL.
Wherein, by slurry coats in the method on first surface and second surface be silk-screen printing, spraying, roller coating or rotation
Apply.Wherein it is possible to appropriate coating method is selected according to the viscosity of slurry.Specifically, using the method for silk-screen printing by slurry
It is coated on first surface and second surface.Because the equipment cost of silk-screen printing is relatively low, applied using the method for silk-screen printing
Cloth, production cost can be reduced.
Further, the thickness for the slurry being coated with the first surface and second surface of glass is 2.0 μm~6.0 μm.
Specifically, the silk screen that silk-screen printing uses is polyester net, the mesh of the mesh number of silk screen≤450, the net tension force that stretches tight be 19N~
22N, the warp and weft angulation of silk screen is 45 °.Wherein, the warp and weft angulation of silk screen is to mesh size
Had a great influence with the penetration of solution, the warp and weft angulation of silk screen is 45 ° of preparations for being more suitable for protective layer.
Wherein, the step of curing process is：It is heating and curing at 150 DEG C~240 DEG C.Further, the time of heating is
30min~60min.Wherein it is possible to the time of the temperature of heating and heating is adjusted according to the material property of slurry, to reach most
Good solidification effect.
Further, the mode of heating is baking, is typically toasted using baking oven.
In one of the embodiments, the thickness of protective layer is 1.0 μm~4.5 μm.
In one of the embodiments, also include being cut plate glass before step S110, then carry out at edging
The step of reason.Specifically, mainly plate glass is cut according to the specification of bend glass and size.Further, will be flat
Size after glass sheet cutting is 1.25inch~12.6inch.
Wherein, the purpose of edging processing is the edge of polishing plate glass, removes the burr left after cutting plate glass,
Simultaneously according to size and specification the polishing plate glass of bend glass, to adapt to the preparation requirement of bend glass.
Further, edging handle the step of be specially：Edging processing is carried out using CNC edge polishers.Wherein, CNC edgings
Machine is, for example, Beijing finishing impression CNC edge polishers.In one of the embodiments, the technological parameter of edging processing is：Feed speed is
400mm/s~800mm/s, the speed of mainshaft are 15000r/min~35000r/min, and positioning height is 4mm~8mm, and edging is handled
Time be 60s~200s.
Step S120：The plate glass for forming matcoveredn is subjected to hot bending processing, obtains heat-bending glass.
Wherein, protective layer is formed at the surface of plate glass, follows plate glass to carry out hot bending processing together.At hot bending
During reason, protective layer can block dust fall, avoid dust fall from dropping to surface of plate glass in hot bending processing procedure, effectively reduce
The generation of pit and impression；Protective layer can also avoid being scratched on the surface of fetching process middle plateform glass simultaneously.
In one of the embodiments, will be formed matcoveredn plate glass carry out hot bending processing the step of be specially：
Step S122：The plate glass for forming matcoveredn is put into mould.
Mould includes cavity plate and punch-pin.Wherein, mould needs to do polishing according to the radian of bend glass.Further
Ground, the roughness Ra of die surface make die surface more smooth below 0.08, prevent from producing surface of plate glass and draw
Trace.Specifically, the material of mould is graphite.
Step S124：Under the atmosphere of protective gas, plate glass is heated and softened, then to mould apply pressure so that
Plate glass is bent.
Wherein, step S124 is carried out in bending furnace.Bending furnace be provided with arrange successively preheating zone, pressurize area and
Cooling area.
Wherein, protective gas can slow down mould and be oxidized at high temperature, improve life-span and the precision of mould.Protectiveness
The forming method of the atmosphere of gas is specially：Protective gas is passed through into the furnace chamber of bending furnace.
In one of the embodiments, the flow that protective gas is passed through is 150L/min~200L/min.Specifically, protect
The one kind of shield property gas in nitrogen, argon gas and helium.
In one of the embodiments, in the step of plate glass being heated and softened, heating-up temperature is 650 DEG C~750 DEG C.
In one of the embodiments, in the step of applying pressure to mould, pressure is 0.3MPa~0.5MPa.Wherein,
After in pressurize area, plate glass is heated and softened, die surface apply pressure, make plate glass bend to mould shape and
Size, and then produce satisfactory bend glass.
In one of the embodiments, to mould apply pressure so that plate glass bend the step of after, include oneself
So the step of annealing.Wherein, in the step of plate glass being heated and softened, heated by the way of gradient increased temperature.
Wherein, the step of plate glass being heated and softened be specially：Plate glass is sequentially delivered to by stove using conveyer belt
Preheating zone, pressurize area and the cooling area of chamber.
Specifically, the temperature of preheating zone is 500 DEG C~650 DEG C, and the temperature in pressurize area is 650 DEG C~750 DEG C, cooling area
Temperature is 300 DEG C~350 DEG C.Wherein, plate glass is preheated in preheating zone, and hot bending processing, Ran Hou are carried out in pressurize area
Cooling area carries out nature annealing, completes the flow of whole hot bending processing.
More specifically, after opening bending furnace, the temperature of preheating zone, pressurize area and cooling area is risen with 30 DEG C/min speed
To respective design temperature, started working after being incubated 10min.Plate glass enters the cyclic track of bending furnace by conveyer belt,
Preheating zone, pressurize area and cooling area difference residence time are 25s~35s, complete the flow of whole hot bending processing.Production process
In, it can further adjust plate glass according to bend glass specification and size and distinguish in preheating zone, pressurize area and cooling area
Residence time, to optimize the production technology of bend glass.Plate glass is heated by the way of gradient increased temperature, can be with
Make plate glass during hot bending more naturally, to produce the bend glass of high quality.
Step S130：The protective layer on heat-bending glass is removed, obtains bend glass.
In one of the embodiments, remove heat-bending glass on protective layer the step of be specially：Heat-bending glass is placed in
Immersion treatment is carried out in liquid parting.Wherein, liquid parting includes dimethyl acetamide and acetone；The time of immersion be 5min~
10min；The temperature of immersion is 30 DEG C~35 DEG C.Further, dimethyl acetamide and the volume ratio of acetone are 65:35.
In one of the embodiments, after the step of protective layer on removing heat-bending glass, in addition to curved surface glass
Glass carries out the step of edging processing.Specifically, edging processing is carried out using CNC edge polishers.Wherein, CNC edge polishers are, for example, north
Capital finishing impression CNC edge polishers.In one of the embodiments, the technological parameter of edging processing is：Feed speed be 400mm/s~
800mm/s, the speed of mainshaft are 15000r/min~35000r/min, and positioning height is 4mm~8mm, and the time of edging processing is
60s~200s.Wherein, the hot bending processing in step S120, trickle change may be produced to the shape and size of plate glass
Change, by carrying out edging processing to bend glass, the bend glass enabled to is more accurate in terms of shape and size.
In one of the embodiments, after the step of carrying out edging processing to bend glass, in addition to bend glass
The step of being polished.The step of polishing is specially：The polishing in polishing fluid by bend glass.
More specifically, it is the step of polishing in polishing fluid by bend glass：Curved surface glass after edging is handled
Glass is arranged in polishing mould, and polishing mould is arranged on polissoir, and polishing material is attached on polissoir, and addition is thrown
Light liquid, is polished.In one of the embodiments, polishing material is pigskin or leatheret.
Wherein, the shape and size for polishing mould are consistent with the shape and size of bend glass respectively.Polishing mould has
Mounting groove, bend glass are arranged in mounting groove.
Further, polished die has multiple mounting grooves, and bend glass can be arranged in multiple mounting grooves, be thrown with being lifted
Light efficiency.
Wherein, polissoir includes upper polishing disk and lower polishing disk.The mode of polishing is that upper polishing disk is fixed, lower polishing disk
Polishing, or lower polishing disk are fixed, upper polishing disk polishing.Specifically, the mode of polishing is that lower polishing disk is fixed, and upper polishing disk is thrown
Light.Typically lower polishing disk is referred to as base, and upper polishing disk is referred to as polishing disk.Wherein, mould will be polished installed in the bottom of polissoir
On seat, polishing material is attached on upper polishing disk and lower polishing disk.
In one of the embodiments, polishing fluid is nano-cerium oxide polishing fluid.Polishing fluid is evenly distributed on polishing disk
In lower polishing disk.
Specifically, the time of polishing is 10min~30min.
Specifically, the rotating speed of polishing is 2000r/min~3000r/min.
Specifically, the intrusion of polishing is 0.2mm~0.3mm.
Wherein, protective layer is removed using liquid parting and simply tentatively sloughs protective layer, and can quickly deviate from using glossing
Protective layer.
Above-mentioned glossing parameter is determined by quality verification.The method of quality verification is：Examine by polishing
The quality of finish of bend glass, if quality of finish does not reach requirement, further modification polishing time, polishing rotating speed,
The intrusion of polishing changes polishing material, until the quality of finish of bend glass reaches requirement, otherwise constantly repeats above-mentioned matter
Amount checking.
By forming protective layer on the surface of plate glass, lack pit, impression and the scuffing on the surface of plate glass etc.
Fall into and greatly reduce, and then polishing time is reduced 5min~10min, greatly improve production efficiency.
The preparation method of above-mentioned bend glass is protected by being formed respectively on the first surface and second surface of plate glass
Sheath, then the plate glass for forming matcoveredn is subjected to hot bending processing, protective layer can block in hot bending processing procedure
Dirt, avoid dust fall from dropping to surface of plate glass in hot bending processing procedure, effectively reduce the generation of pit and impression；Protect simultaneously
Layer is formed at the surface of plate glass, and plate glass surface in fetching process can be avoided to be scratched.Therefore, above-mentioned curved surface glass
The preparation method of glass solves the problems, such as that bend glass produces pit, impression and scratched in process of production from root, not only
The yields of bend glass can be improved more than 20%, and polishing time can also be reduced, improve production efficiency.
The bend glass of one embodiment, it is prepared by the preparation method of above-mentioned bend glass.Above-mentioned bend glass table
Face is smooth, and translucency is good, elegant in appearance, vehicle glass etc. can be used as to use.In one of the embodiments, bend glass is single
The bend glass in bend glass, bilateral bend glass or four.
The electronic equipment of one embodiment, including cover plate, cover plate are made by above-mentioned bend glass.The lid of above-mentioned electronic equipment
Plate is made by above-mentioned bend glass, exquisite appearance, can be widely applied to electronic device field.
It is specific embodiment part below：
Embodiment 1
The preparation process of the bend glass of the present embodiment is as follows：
(1) method for using silk-screen printing, the slurry containing modified polyimide and solvent is respectively coated on into size is
On the first surface and second surface of 1.25inch, thickness for 0.20mm middle aluminium plate glass, the material that thickness is 2.5 μm is formed
Pulp layer, wherein, in slurry, the mass volume ratio of modified polyimide and solvent is 45g:100mL, solvent DMA, NMP and BC
Mixed solvent, in the mixed solvent DMA and NMP and BC volume ratio are 65:20:15.30min is toasted at 240 DEG C to be consolidated
Change is handled, and forms 1.5 μm of protective layer.
(2) the middle aluminium plate glass for forming matcoveredn is put into the mould of graphite material, mould is put into bending furnace
Conveyer belt on, be passed through into bending furnace flow be 150L/min nitrogen, middle aluminium plate glass is sent to by conveyer belt
550 DEG C of preheating zone, and stop 25s and preheated.The pressure that 25s applies 0.3MPa to mould is stopped in 705 DEG C of pressurize areas,
So that middle aluminium plate glass bending.Then 25s is stopped 300 DEG C of cooling area, last natural cooling, obtains heat-bending glass.
(3) heat-bending glass is placed in the liquid parting that 2000mL contains dimethyl acetamide and acetone, and soaked at 30 DEG C
5min is steeped, the protective layer on heat-bending glass is removed, obtains bend glass, wherein, the volume ratio of dimethyl acetamide and acetone is
13:7。
Embodiment 2
The preparation process of the bend glass of the present embodiment is as follows：
(1) the high alumina plate glass that thickness is 1.10mm is chosen, 12.6inch is then cut into, reuses Beijing finishing impression
CNC edge polishers carry out edging processing, and the technological parameter of edging processing is：Feed speed is 600mm/s, and the speed of mainshaft is
25000r/min, positioning height 6mm, the time of edging processing is 200s.It is sub- that modified polyamides will be contained using the method for spraying
The slurry of amine and solvent is respectively coated on the first surface and second surface of high alumina plate glass, and it is 4.5 μm to form thickness
Feed pulp layer, wherein, in slurry, the mass volume ratio of modified polyimide and solvent is 60g:100mL, solvent are DMA's and BC
Mixed solvent, in the mixed solvent DMA and BC volume ratio are 6:1.60min is toasted at 150 DEG C and carries out curing process, is formed thick
Spend the protective layer for 3.2 μm.
(2) the high alumina plate glass for forming matcoveredn is put into the mould of graphite material, mould is put into bending furnace
Conveyer belt on, be passed through into bending furnace flow be 200L/min nitrogen, high alumina plate glass is sent to by conveyer belt
600 DEG C of preheating zone, and stop 35s and preheated.The pressure that 35s applies 0.5MPa to mould is stopped in 720 DEG C of pressurize areas,
So that high alumina plate glass is bent.Then 35s is stopped 350 DEG C of cooling area, last natural cooling, obtains heat-bending glass.
(3) heat-bending glass is placed in the liquid parting that 2000mL contains dimethyl acetamide and acetone, and soaked at 35 DEG C
10min is steeped, wherein, dimethyl acetamide and the volume ratio of acetone are 7 in liquid parting:13.Then Beijing finishing impression CNC edgings are used
Machine carries out edging processing, and the technological parameter of edging processing is：Feed speed is 600mm/s, speed of mainshaft 25000r/min, is determined
Position height is 6mm, and the time of edging processing is 200s.20min is polished with 2000r/min rotating speed again, the intrusion of polishing is
0.2mm, the material of polishing is pig hairpencil, and polishing fluid is nano-cerium oxide polishing fluid, removes the protective layer on heat-bending glass, obtains
Bend glass.
Embodiment 3
The preparation process of the bend glass of the present embodiment is as follows：
(1) the high alumina plate glass that thickness is 0.50mm is chosen, 5.5inch is then cut into, reuses Beijing finishing impression CNC
Edge polisher carries out edging processing, and the technological parameter of edging processing is：Feed speed is 400mm/s, speed of mainshaft 15000r/
Min, positioning height 4mm, the time of edging processing is 60s.Modified polyimide and solvent will be contained using the method for roller coating
Slurry be respectively coated on the first surface and second surface of high alumina plate glass, it is 4.5 μm of feed pulp layer to form thickness, its
In, in slurry, the mass volume ratio of modified polyimide and solvent is 58:100mL, solvent DMA, NMP and BC mixing are molten
Agent, in the mixed solvent DMA and NMP and BC volume ratio is 65:20:15.45min is toasted at 240 DEG C and carries out curing process, shape
Into the protective layer that thickness is 3.0 μm.
(2) the high alumina plate glass for forming matcoveredn is put into the mould of graphite material, mould is put into bending furnace
Conveyer belt on, be passed through into bending furnace flow be 180L/min argon gas, high alumina plate glass is sent to by conveyer belt
550 DEG C of preheating zone, and stop 30s and preheated.The pressure that 30s applies 0.4MPa to mould is stopped in 700 DEG C of pressurize areas,
So that high alumina plate glass is bent.Then 30s is stopped 320 DEG C of cooling area, last natural cooling, obtains heat-bending glass.
(3) heat-bending glass is placed in the liquid parting that 2000mL contains dimethyl acetamide and acetone, soaked at 32 DEG C
8min, wherein, dimethyl acetamide and the volume ratio of acetone are 7 in liquid parting:10.Then Beijing finishing impression CNC edge polishers are used
Edging processing is carried out, the technological parameter of edging processing is：Feed speed is 400mm/s, speed of mainshaft 15000r/min, is positioned
Highly it is 4mm, the time of edging processing is 60s.10min is polished with 3000r/min rotating speed again, the intrusion of polishing is
0.3mm, the material of polishing is leatheret, and polishing fluid is nano-cerium oxide polishing fluid, removes the protective layer on heat-bending glass, obtains
Bend glass.
Embodiment 4
The preparation process of the bend glass of the present embodiment is as follows：
(1) the high alumina plate glass that thickness is 0.80mm is chosen, 8.00inch is then cut into, reuses Beijing finishing impression
CNC edge polishers carry out edging processing, and the technological parameter of edging processing is：Feed speed is 800mm/s, and the speed of mainshaft is
35000r/min, positioning height 8mm, the time of edging processing is 150s.It is sub- that modified polyamides will be contained using the method for spin coating
Amine and BC slurry are respectively coated on the first surface and second surface of high alumina plate glass, form the material that thickness is 4.0 μm
Pulp layer, wherein, in slurry, modified polyimide and BC mass volume ratio are 20g:100mL.40min is toasted at 180 DEG C to enter
Row curing process, form the protective layer that thickness is 2.6 μm.
(2) the high alumina plate glass for forming matcoveredn is put into the mould of graphite material, mould is put into bending furnace
Conveyer belt on, be passed through into bending furnace flow be 160L/min helium, high alumina plate glass is sent to by conveyer belt
500 DEG C of preheating zone, and stop 28s and preheated.The pressure that 28s applies 0.4MPa to mould is stopped in 650 DEG C of pressurize areas,
So that high alumina plate glass is bent.Then 28s is stopped 300 DEG C of cooling area, last natural cooling, obtains heat-bending glass.
(3) heat-bending glass is placed in the liquid parting that 2000mL contains dimethyl acetamide and acetone, soaked at 33 DEG C
6min, wherein, dimethyl acetamide and the volume ratio of acetone are 7 in liquid parting:11.Then Beijing finishing impression CNC edge polishers are used
Edging processing is carried out, the technological parameter of edging processing is：Feed speed is 800mm/s, speed of mainshaft 35000r/min, is positioned
Highly it is 8mm, the time of edging processing is 150s.30min is polished with 2500r/min rotating speed again, the intrusion of polishing is
0.25mm, the material of polishing is pig hairpencil, and polishing fluid is nano-cerium oxide polishing fluid, removes the protective layer on heat-bending glass, obtains
To bend glass.
Embodiment 5
The preparation process of the bend glass of the present embodiment is as follows：
(1) the sodium calcium plate glass that thickness is 0.80mm is chosen, 12.6inch is then cut into, reuses Beijing finishing impression
CNC edge polishers carry out edging processing, and the technological parameter of edging processing is：Feed speed is 500mm/s, and the speed of mainshaft is
20000r/min, positioning height 5mm, the time of edging processing is 135s.It is sub- that modified polyamides will be contained using the method for spraying
Amine and NMP slurry are respectively coated on the first surface and second surface of sodium calcium plate glass, form the material that thickness is 3.5 μm
Pulp layer, wherein, in slurry, modified polyimide and NMP mass volume ratio are 80g:100mL.50min is toasted at 200 DEG C
Curing process is carried out, forms 2.2 μm of protective layer.
(2) the sodium calcium plate glass for forming matcoveredn is put into the mould of graphite material, mould is put into bending furnace
Conveyer belt on, be passed through into bending furnace flow be 160L/min nitrogen, sodium calcium plate glass is sent to by conveyer belt
650 DEG C of preheating zone, and stop 35s and preheated.The pressure that 35s applies 0.4MPa to mould is stopped in 750 DEG C of pressurize areas,
So that sodium calcium plate glass is bent.Then 35s is stopped 350 DEG C of cooling area, last natural cooling, obtains heat-bending glass.
(3) heat-bending glass is placed in the liquid parting that 2000mL contains dimethyl acetamide and acetone, soaked at 33 DEG C
6min, wherein, dimethyl acetamide and the volume ratio of acetone are 7 in liquid parting:6.Then entered using Beijing finishing impression CNC edge polishers
The processing of row edging, the technological parameter of edging processing are：Feed speed is 500mm/s, speed of mainshaft 20000r/min, and positioning is high
Spend for 5mm, the time of edging processing is 135s.The protective layer on heat-bending glass is removed, obtains bend glass.
Embodiment 6
The preparation process of the bend glass of the present embodiment is as follows：
(1) the high alumina plate glass that thickness is 1.10mm is chosen, 12.6inch is then cut into, reuses Beijing finishing impression
CNC edge polishers carry out edging processing, and the technological parameter of edging processing is：Feed speed is 600mm/s, and the speed of mainshaft is
25000r/min, positioning height 6mm, the time of edging processing is 200s.
(2) the high alumina plate glass after edging is handled is put into the mould of graphite material, and mould is put into bending furnace
On conveyer belt, the nitrogen that flow is 200L/min is passed through into bending furnace, high alumina plate glass is sent to 600 by conveyer belt
DEG C preheating zone, and stop 35s and preheated.The pressure that 35s applies 0.5MPa to mould is stopped in 720 DEG C of pressurize areas, with
Bend high alumina plate glass.Then 35s is stopped 350 DEG C of cooling area, last natural cooling, obtains heat-bending glass.
(3) edging processing is carried out to heat-bending glass using Beijing finishing impression CNC edge polishers, the technological parameter of edging processing is：
Feed speed is 600mm/s, speed of mainshaft 25000r/min, positioning height 6mm, and the time of edging processing is 200s.Again
20min is polished with 2000r/min rotating speed, the intrusion of polishing is 0.2mm, and the material of polishing is pig hairpencil, and polishing fluid is to receive
Rice cerium oxide polishing slurry, removes the protective layer on heat-bending glass, obtains bend glass.
Test：
Bend glass 1000 made from choosing embodiment 1~6 respectively, counts bend glass surface made from each embodiment
Pit number, impression bar number and the average value for scratching number, and record polishing time, calculate yields.
Concrete outcome is shown in Table 1.
Table 1
As it can be seen from table 1 in the preparation method of the bend glass of embodiment 1~5, polishing time is 5~10min, good
Product rate is 72.3%~80.0%, illustrates that the polishing time of the preparation method of the bend glass of embodiment 1~5 is short, and yields is high,
Save cost.
By embodiment 2 compared with Example 6, the bend glass pit number that embodiment 2 obtains reduces more than 8%, impression number
More than 11% is reduced, number is scratched and reduces more than 12%, and polishing time is reduced to 10min from 20min, yields is from 48.9%
Improve to 72.3%, illustrate the bend glass good quality that embodiment 2 obtains, yields height.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of preparation method of bend glass, it is characterised in that comprise the following steps：
Plate glass is provided, the plate glass has relative first surface and second surface, in the first surface and institute
State and form protective layer on second surface respectively, the material of the protective layer includes exotic material；
The plate glass formed with the protective layer is subjected to hot bending processing, obtains heat-bending glass；
The protective layer on the heat-bending glass is removed, obtains bend glass.
2. the preparation method of bend glass according to claim 1, it is characterised in that described in the first surface and institute
Stating the step of forming protective layer on second surface respectively is specially：
Slurry is respectively coated on the first surface and the second surface, cured processing, forms the protective layer, its
In, the slurry includes the exotic material and solvent.
3. the preparation method of the bend glass according to claim 1~2 any one, it is characterised in that the high temperature resistant
Material can retention property be constant at 750 DEG C, and is not reacted with glass；Or the exotic material is that modified polyamides is sub-
Amine.
4. the preparation method of bend glass according to claim 2, it is characterised in that described that slurry is respectively coated on institute
State the one kind of method in silk-screen printing, spraying, roller coating and spin coating on first surface and the second surface；It is or described solid
Changing the step of handling is：It is heating and curing at 150 DEG C~240 DEG C；Or the solvent is selected from fourth lactones, methyl pyrrolidone and second
At least one of glycol monobutyl ether.
5. the preparation method of bend glass according to claim 1, it is characterised in that the thickness of the protective layer is 1.0 μ
M~4.5 μm.
6. the preparation method of bend glass according to claim 1, it is characterised in that it is described will be formed with the protective layer
The plate glass carry out hot bending processing the step of be specially：
The plate glass formed with the protective layer is put into mould；
Under the atmosphere of protective gas, the plate glass is heated and softened, then pressure is applied so that described to the mould
Plate glass is bent.
7. the preparation method of bend glass according to claim 6, it is characterised in that the protective gas is selected from nitrogen
One kind in gas, argon gas and helium；Or in described the step of heating and softening the plate glass, heating-up temperature be 650 DEG C~
750℃；Or in described the step of applying pressure to the mould, pressure is 0.3MPa~0.5MPa.
8. the preparation method of bend glass according to claim 1, it is characterised in that described to remove on the heat-bending glass
The protective layer the step of be specially：The heat-bending glass is placed in liquid parting and carries out immersion treatment, wherein, the demoulding
Liquid includes dimethyl acetamide and acetone.
9. the bend glass that a kind of preparation method of bend glass as described in claim 1~8 any one is prepared.
10. a kind of electronic equipment, including cover plate, it is characterised in that the cover plate includes the bend glass described in claim 9.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109160718A (en) * | 2018-11-09 | 2019-01-08 | 杨玉金 | A kind of preparation method of bend glass |
| CN110545638A (en) * | 2018-05-28 | 2019-12-06 | 北京小米移动软件有限公司 | Terminal shell manufacturing method and terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0312439A1 (en) * | 1987-10-14 | 1989-04-19 | Saint-Gobain Vitrage International | Improvements in or relating to tempering glass |
| US5834382A (en) * | 1995-10-05 | 1998-11-10 | Saint-Gobain Vitrage | Covering for tools in contact with hot glass |
| DE102004047800A1 (en) * | 2004-09-29 | 2006-04-06 | Schott Ag | Temporary protection of glass substrates comprises applying polymer protective layer at glass substrate and removing polymer protective layer by plasma etching procedure after fulfilling protective function of glass substrate |
| CN104023099A (en) * | 2014-06-20 | 2014-09-03 | 蓝思科技股份有限公司 | Mobile phone curved glass panel and forming method thereof |
| CN107216711A (en) * | 2017-07-20 | 2017-09-29 | 广州亦盛环保科技有限公司 | A kind of 3D cover-plate glass hot bending processing protection ink and preparation method thereof |
-
2017
- 2017-11-29 CN CN201711224264.5A patent/CN107879642B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0312439A1 (en) * | 1987-10-14 | 1989-04-19 | Saint-Gobain Vitrage International | Improvements in or relating to tempering glass |
| US5834382A (en) * | 1995-10-05 | 1998-11-10 | Saint-Gobain Vitrage | Covering for tools in contact with hot glass |
| DE102004047800A1 (en) * | 2004-09-29 | 2006-04-06 | Schott Ag | Temporary protection of glass substrates comprises applying polymer protective layer at glass substrate and removing polymer protective layer by plasma etching procedure after fulfilling protective function of glass substrate |
| CN104023099A (en) * | 2014-06-20 | 2014-09-03 | 蓝思科技股份有限公司 | Mobile phone curved glass panel and forming method thereof |
| CN107216711A (en) * | 2017-07-20 | 2017-09-29 | 广州亦盛环保科技有限公司 | A kind of 3D cover-plate glass hot bending processing protection ink and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110545638A (en) * | 2018-05-28 | 2019-12-06 | 北京小米移动软件有限公司 | Terminal shell manufacturing method and terminal |
| CN109160718A (en) * | 2018-11-09 | 2019-01-08 | 杨玉金 | A kind of preparation method of bend glass |
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| CN107879642B (en) | 2020-09-18 |
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