CN108215053A - A kind of preparation method of the imitative glass 3D curved surface cover boards of integration - Google Patents
A kind of preparation method of the imitative glass 3D curved surface cover boards of integration Download PDFInfo
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- CN108215053A CN108215053A CN201810038629.3A CN201810038629A CN108215053A CN 108215053 A CN108215053 A CN 108215053A CN 201810038629 A CN201810038629 A CN 201810038629A CN 108215053 A CN108215053 A CN 108215053A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C2045/0079—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping applying a coating or covering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
The present invention provides a kind of preparation methods of the imitative glass 3D curved surface cover boards of integration.The preparation method of the present invention includes the following steps：1) 3D injection moldings：3D injection moldings are carried out using optical-grade transparent plastics；2) cure process：It will be handled through step 1) 3D material hardenings after injection molding；3) OPVD plated films：Material after step 2) cure process is subjected to OPVD plated films；4) it sprays：Spray treatment is carried out to the material after step 3) OPVD plated films, obtains the imitative glass 3D curved surface cover boards of integration.The imitative glass 3D curved surface cover boards of integration made from the preparation method of the present invention, plasticity is strong, and shock resistance is good, and 5G signal shieldings are low, small to electromagnetic wave loss, and hardness is high, and wearability, corrosion resistance, high/low-temperature impact, anti-aging property are all preferable；Suitable for mobile phone, wearing, intelligent appliance, the 3C Products such as intelligent consumption electronics；It can optimize, replace existing metal, glass panel.
Description
Technical field
The invention belongs to curved surface cover board technical fields, are related to a kind of preparation method of the imitative glass 3D curved surface cover boards of integration.
Background technology
It is existing flat as requirement of the development and user of electronic technology to terminal device usage experience is higher and higher
Face curtain is difficult to the use demand for meeting user.Therefore, the concepts such as curve screens are come into being, and such screen can realize song
Face is shown.But due to current screen there are it is various the problem of, can realize in the market production and few.
Metal shell commonly used in the prior art easily generates signal interference, and 3D glass or plastics to WIFI, NFC, LIFI
Mobile phone aesthetic measure and feel can be substantially improved in cover board, so at present, gradually making metal shell into 3D glass when preparing shell
Shell made of glass or plastic material.Meanwhile the invention of the new mechanicss of communication of 4G/5G can also promote 3D glass or plastic cover plate in hand
Application on machine.
At present in industry, for 3D curved surfaces cover board mainly based on glass substrate, technique mainly includes procedure below：CNC (numerical controls
Lathe) sawing sheet → CNC finishing impressions (edging) → grinding and polishing → cleaning → hot bending → two-sided clears off → tempering → UV transfers → plated film
(PVD) → printing (silk-screen, spraying or exposure imaging) → fitting → pad pasting → packaging.3D glass curve cover board processing technologys are answered
It is miscellaneous, technology difficulty is big, cause processing yield low, of high cost, and there is glass baseplate not stretch-proof, complex three-dimensional structure to be difficult to reality
Now, the defects of toughness is low, impact resistance is poor.Therefore, the realization degree of the complex three-dimensional structure of cover board of the prior art, tough
Property, shock resistance need to be further improved.
Invention content
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of systems of the imitative glass 3D curved surface cover boards of integration
Preparation Method, the imitative glass 3D curved surface cover boards of integration obtained, hardness is high, and toughness, shock resistance are good, small to electromagnetic wave loss,
Wearability, corrosion resistance, high/low-temperature impact, anti-aging property are preferable.
For this purpose, the present invention uses following technical scheme：
A kind of preparation method of the imitative glass 3D curved surface cover boards of integration, the preparation method include the following steps：
1) 3D injection moldings：3D injection moldings are carried out using optical-grade transparent plastics；
2) cure process：It will be handled through step 1) 3D material hardenings after injection molding；
3) OPVD plated films：Material after step 2) cure process is subjected to OPVD plated films；
4) it sprays：Spray treatment is carried out to the material after step 3) OPVD plated films, obtains the imitative glass 3D curved surfaces of integration
Cover board.
The imitative glass 3D curved surface cover boards of integration made from the preparation method of the present invention, have flexibility AMOLED and bend glass
Characteristic；Suitable for mobile phone, wearing, intelligent appliance, the 3C Products such as intelligent consumption electronics；It can optimize, replace existing metal, glass
Glass panel；Reduce cost；Realize specifically imitative glass hard (HRC65Yi Shang), and have good toughness and anticorrosive, anti-impact force effect.
In step 1), the processing step of the 3D injection moldings is：Material molten → upper mold → debugging → molding → injection
Filling → pressurize molding → cooling → die sinking.Product thickness can realize 0.5~3.0mm made of Shooting Technique through this step
Any thickness；Flatness is preferable；Product thickness is uniform；Flow leveling is preferable；Internal stress free trace and rainbow line etc. are bad.
In step 1), the optical-grade transparent plastics are polymethyl methacrylate (PMMA) and/or makrolon (PC)；
The temperature of the material molten is 210~250 DEG C, such as the temperature of melting is 210 DEG C, 220 DEG C, 230 DEG C, 240 DEG C, 250 DEG C.
Preferably, the injection pressure of injection filling is 80~130MPa, such as the injection pressure of injection filling is
80MPa、90MPa、100MPa、110MPa、120MPa、130Mpa；Injection time be 2~5s, such as injection time for 2s, 3s,
4s、5s。
Preferably, the molding pressure of the pressurize be 40~60MPa, such as the molding pressure of pressurize for 40MPa, 45MPa,
50MPa、55MPa、60MPa；The pressurize molding time be 20~40s, such as the pressurize molding time for 20s, 25s,
30s、35s、40s。
In step 2), the main component of the hardening bath that the cure process is used is urethane acrylate, the hardening
Time for 10~20s, such as the time of hardening is 10s, 11s, 12s, 13s, 14s, 15s, 16s, 17s, 18s, 19s, 20s.
In step 3), OPVD plated films of the present invention be non-conductive vacuum plated film, the concrete technology of the OPVD plated films
For：Hanger → vacuumize → pretreatment → ion sputtering film coating → deflation.ID colors, printing can be realized by coating process
Textured pattern is realized with spraying.
Preferably, the vacuum is：Cavity is vacuumized, while injects protective gas and oxidizing gas.
Preferably, the protective gas is argon gas or nitrogen.
Preferably, the ion sputtering film coating sets target evaporation plating parameter to be deposited by workbench, the vapor deposition ginseng
Number for vapor deposition 7~8 layers of the number of plies, vapor deposition overall thickness be 30~50nm, such as vapor deposition overall thickness be 30nm, 35nm, 40nm, 45nm,
50nm, vapor deposition number are 2~3 times.
Preferably, the deflation course is：Vapor deposition terminates to be put into air in rear chamber, takes out product.
In step 4), the spraying by spraying twice, and spraying is to prime for the first time, and second of spraying is to paint.
The priming paint includes paint AK900CB, curing agent AK900H, diluent AKT150, the paint AK900CB, hard
Agent AK900H, diluent AKT150 mass ratio be 8:1:(6~8), such as mass ratio are 8:1:6、8:1:7、8:1:8.
The finishing coat includes paint LH-00301, curing agent LH400, diluent LHT820, the paint LH-00301, hard
Agent LH400, diluent LHT820 mass ratio be 8:1:(6~8), such as mass ratio are 8:1:6、8:1:7、8:1:8.
Prime in the spraying process with the baking temperature after finishing coat be 60~80 DEG C, such as baking temperature for 60 DEG C,
65℃、70℃、75℃、80℃；Baking time after priming is 20~40min, for example, baking time be 20min, 21min,
22min、23min、24min、25min、26min、27min、28min、29min、30min、31min、32min、33min、
34min、35min、36min、37min、38min、39min、40min；Baking time after painting is 2~4h, such as toast
Time is 2h, 2.5h, 3h, 3.5h, 4h.
The step of CNC processing is further included after the spraying.
Compared with prior art, beneficial effects of the present invention are：
The preparation method of glass 3D curved surface cover boards is imitated in the integration of the present invention, is molded, hardened by 3D, OPVD plated films, sprayed
The imitative glass 3D curved surface cover boards of integration made from processing technology are applied, relative to metal or glass cover-plate, cost savings 60%；It is plastic
Property is strong, and more than R2.0mm can be realized, be that glass workpiece cannot compare；Shock resistance reaches more than 0.5J, is far above
The shock resistance of glass workpiece 0.2J；5G signal shieldings are low, and small, the shortcomings that overcoming metallic shield effect is lost to electromagnetic wave；
Case hardness is 5~6H/1000g, reaches glass effects；Surface abrasion resistance is good, and wearability is reached for 5000 times/more than 1000g；
Good corrosion resistance, the corrosion of surface siliconization layer protective effect hindered acid alkali chemicals；High/low-temperature impact is good, -40 DEG C /+75
DEG C temperature condition under, more than circulation impact 48H；Ageing resistance is good, the amount of radiation 0.63w/m that UV illumination rapidly radiates2/ nm,
Phenomena such as 96H is without discoloration, crackle.
Specific embodiment
The technical solution further illustrated the present invention below by specific embodiment.
Unless specific instructions, various raw materials of the invention are commercially available buys or is prepared according to the conventional method of this field
It obtains.
The preparation method of glass 3D curved surface cover boards is imitated in the integration of the present invention, and the preparation method includes the following steps：
1) 3D injection moldings：3D injection moldings are carried out using optical-grade transparent plastics；
2) cure process：It will be handled through step 1) 3D material hardenings after injection molding；
3) OPVD plated films：Material after step 2) cure process is subjected to OPVD plated films；
4) it sprays：Spray treatment is carried out to the material after step 3) OPVD plated films, obtains the imitative glass 3D curved surfaces of integration
Cover board.
Wherein, Shooting Technique uses optical grade compression mould；High-accuracy optical grade injection molding machine compression injection.OPVD plated films
Technique uses vacuum evaporation plating machine.
Embodiment 1
The preparation method of glass 3D curved surface cover boards is imitated in the integration of the present embodiment, is included the following steps：
1) 3D injection moldings：It is filled out using optical-grade transparent plastics via material molten → upper mold → debugging → molding → injection
Fill → technique of pressurize molding → cooling → die sinking carries out 3D injection moldings, the temperature of material molten is 210 DEG C, injection filling
Injection pressure is 130MPa, and injection time 2s, the molding pressure of pressurize is 40MPa, and the pressurize molding time is 40s；
2) cure process：Will through step 1) 3D material hardening bath cure process after injection molding, hardening bath it is main
Ingredient is urethane acrylate, and the time of hardening is 10s；
3) OPVD plated films：By the material after step 2) cure process via hanger → vacuumize → pretreatment → ion
The technique of sputtering → deflation carries out OPVD plated films, and ion sputtering film coating sets target evaporation plating parameter to be deposited by workbench,
Evaporation plating parameter is 7 layers, thickness 30nm of the number of plies of vapor deposition, and vapor deposition number is 2 times；
4) it sprays：Spray treatment twice is carried out to the material after step 3) OPVD plated films, the priming paint sprayed for the first time
It is 8 to form as the mass ratio of paint AK900CB, curing agent AK900H, diluent AKT150:1:6,80 DEG C of bakings after priming
20min；The composition painted for the second time is paint LH-00301, the mass ratio of curing agent LH400, diluent LHT820 are 8:1:
7,70 DEG C of baking 2h after painting；
5) panel after spraying is obtained into the imitative glass 3D curved surface cover boards of integration through CNC working processes.
Embodiment 2
The preparation method of glass 3D curved surface cover boards is imitated in the integration of the present embodiment, is included the following steps：
1) 3D injection moldings：It is filled out using optical-grade transparent plastics via material molten → upper mold → debugging → molding → injection
Fill → technique of pressurize molding → cooling → die sinking carries out 3D injection moldings, the temperature of material molten is 220 DEG C, injection filling
Injection pressure is 100MPa, and injection time 3s, the molding pressure of pressurize is 50MPa, and the pressurize molding time is 30s；
2) cure process：Will through step 1) 3D material hardening bath cure process after injection molding, hardening bath it is main
Ingredient is urethane acrylate, and the time of hardening is 15s；
3) OPVD plated films：By the material after step 2) cure process via hanger → vacuumize → pretreatment → ion
The technique of sputtering → deflation carries out OPVD plated films, and ion sputtering film coating sets target evaporation plating parameter to be deposited by workbench,
Evaporation plating parameter is 8 layers, thickness 40nm of the number of plies of vapor deposition, and vapor deposition number is 3 times；
4) it sprays：Spray treatment twice is carried out to the material after step 3) OPVD plated films, the priming paint sprayed for the first time
It is 8 to form as the mass ratio of paint AK900CB, curing agent AK900H, diluent AKT150:1:6,60~80 DEG C of bakings after priming
Roasting 30min；The composition painted for the second time is paint LH-00301, the mass ratio of curing agent LH400, diluent LHT820 are 8:
1:8,80 DEG C of baking 4h after painting；
5) panel after spraying is obtained into the imitative glass 3D curved surface cover boards of integration through CNC working processes.
Embodiment 3
The preparation method of glass 3D curved surface cover boards is imitated in the integration of the present embodiment, is included the following steps：
1) 3D injection moldings：It is filled out using optical-grade transparent plastics via material molten → upper mold → debugging → molding → injection
Fill → technique of pressurize molding → cooling → die sinking carries out 3D injection moldings, the temperature of material molten is 240 DEG C, injection filling
Injection pressure is 110MPa, and injection time 4s, the molding pressure of pressurize is 50MPa, and the pressurize molding time is 30s；
2) cure process：Will through step 1) 3D material hardening bath cure process after injection molding, hardening bath it is main
Ingredient is urethane acrylate, and the time of hardening is 20s；
3) OPVD plated films：By the material after step 2) cure process via hanger → vacuumize → pretreatment → ion
The technique of sputtering → deflation carries out OPVD plated films, and ion sputtering film coating sets target evaporation plating parameter to be deposited by workbench,
Evaporation plating parameter is 7 layers, thickness 40nm of the number of plies of vapor deposition, and vapor deposition number is 2 times；
4) it sprays：Spray treatment twice is carried out to the material after step 3) OPVD plated films, the priming paint sprayed for the first time
It is 8 to form as the mass ratio of paint AK900CB, curing agent AK900H, diluent AKT150:1:8,80 DEG C of bakings after priming
30min；The composition painted for the second time is paint LH-00301, the mass ratio of curing agent LH400, diluent LHT820 are 8:1:
7,65 DEG C of baking 4h after painting；
5) panel after spraying is obtained into the imitative glass 3D curved surface cover boards of integration through CNC working processes.
Embodiment 4
The preparation method of glass 3D curved surface cover boards is imitated in the integration of the present embodiment, is included the following steps：
1) 3D injection moldings：It is filled out using optical-grade transparent plastics via material molten → upper mold → debugging → molding → injection
Fill → technique of pressurize molding → cooling → die sinking carries out 3D injection moldings, the temperature of material molten is 250 DEG C, injection filling
Injection pressure is 120MPa, and injection time 5s, the molding pressure of pressurize is 45MPa, and the pressurize molding time is 40s；
2) cure process：Will through step 1) 3D material hardening bath cure process after injection molding, hardening bath it is main
Ingredient is urethane acrylate, and the time of hardening is 20s；
3) OPVD plated films：By the material after step 2) cure process via hanger → vacuumize → pretreatment → ion
The technique of sputtering → deflation carries out OPVD plated films, and ion sputtering film coating sets target evaporation plating parameter to be deposited by workbench,
Evaporation plating parameter is 8 layers, thickness 50nm of the number of plies of vapor deposition, and vapor deposition number is 3 times；
4) it sprays：Spray treatment twice is carried out to the material after step 3) OPVD plated films, the priming paint sprayed for the first time
It is 8 to form as the mass ratio of paint AK900CB, curing agent AK900H, diluent AKT150:1:8,70 DEG C of bakings after priming
35min；The composition painted for the second time is paint LH-00301, the mass ratio of curing agent LH400, diluent LHT820 are 8:1:
6,70 DEG C of baking 4h after painting；
5) panel after spraying is obtained into the imitative glass 3D curved surface cover boards of integration through CNC working processes.
Embodiment 5
The preparation method of glass 3D curved surface cover boards is imitated in the integration of the present embodiment, is included the following steps：
1) 3D injection moldings：It is filled out using optical-grade transparent plastics via material molten → upper mold → debugging → molding → injection
Fill → technique of pressurize molding → cooling → die sinking carries out 3D injection moldings, the temperature of material molten is 250 DEG C, injection filling
Injection pressure is 130MPa, and injection time 3s, the molding pressure of pressurize is 50MPa, and the pressurize molding time is 40s；
2) cure process：Will through step 1) 3D material hardening bath cure process after injection molding, hardening bath it is main
Ingredient is urethane acrylate, and the time of hardening is 12s；
3) OPVD plated films：By the material after step 2) cure process via hanger → vacuumize → pretreatment → ion
The technique of sputtering → deflation carries out OPVD plated films, and ion sputtering film coating sets target evaporation plating parameter to be deposited by workbench,
Evaporation plating parameter is 8 layers, thickness 45nm of the number of plies of vapor deposition, and vapor deposition number is 2 times；
4) it sprays：Spray treatment twice is carried out to the material after step 3) OPVD plated films, the priming paint sprayed for the first time
It is 8 to form as the mass ratio of paint AK900CB, curing agent AK900H, diluent AKT150:1:8,80 DEG C of bakings after priming
30min；The composition painted for the second time is paint LH-00301, the mass ratio of curing agent LH400, diluent LHT820 are 8:1:
8,65 DEG C of baking 4h after painting；
5) panel after spraying is obtained into the imitative glass 3D curved surface cover boards of integration through CNC working processes.
Comparative example
Glass cover-plate of this comparative example for prior art preparation, the preparation method of the 3D glass curve cover boards of this comparative example,
Include the following steps：
1) CNC sawing sheets：According to the requirement of drawing size, it is processed surplus 0.1mm and is high-volume input to glass substrate CNC afterwards and cut
Crude green body making is carried out in cutting mill；
2) CNC finishing impressions (edging)：Edging will be carried out through blank made from step 1), and remove surplus；And pass through and pass through brill
Glass raw material is carried out bevelling and drilling by head, and shape and camera hole are finished using fine grinding wheel, to meet final finished requirement；
3) grinding and polishing：Step 2) glass grinder is added in into polishing powder, by the glass grinding after finishing impression to requiring thickness,
And it is polished to surface mirror effect；
4) it cleans：To after step 3) polishing glass carry out using supersonic wave cleaning machine washing off remained on surface waste residue, continuously
3 are cleaned, per pass 2min；
5) hot bending：To being put into graphite jig, then mold is put into hot-bending machine through material made from step 4), it is passed through N2
Gas shielded gas, 700~750 DEG C of Control for Kiln Temperature carry out hot bending die mould after carrying out preheating 30min, and die sinking postcooling to normal temperature state takes
Go out material；
6) twin polishing：To glass is using cashmere wheel after step 5) hot bending, by adjusting upper and lower polishing wheel speed (30
~50rpm), to 0.5~0.6MPa of product pressure, time control 20min, and assisted milling powder or foam solution, to glass product
Surface finishing polish, it is penetrating indefectible to reach；
7) tempering：The potassium nitrate solution of material merging high-purity after step 6) polishing and the catalyst of collocation are mixed
Liquid carries out High temperature tempered, 4-6 hours tempering time, 450 DEG C of temperature；
8) UV is transferred：Texture is transferred on PET material glass rupture pressure discs using UV molds；
9) plated film (PVD)：To being removed by glass made from step 7) using alkalescent cleaning agent by ultrasonic cleaning
The stains such as surface oil, moisture；AF liquid medicine jets are plated in product surface film forming 10~20nm thickness；Glass is taken out after spraying, is put
Enter oven and carry out 120 DEG C, 30min bakings；
10) it prints：UV transfer surfaces are imprinted on by character using LOGO characters halftone to the rupture pressure disc by step 8) UV transfers,
By 80 DEG C, upper jig carries out three printings after 30min bakings are dry；The ceramic white background of first of printing carries out 80 DEG C, and 30min is pre-
Baking, ceramic white 80 DEG C of the progress of second printing, 30min prebake conditions, brilliant black 80 DEG C of the progress of third road printing titanium, 60min bakings
It is dry；
11) it is bonded：To being carried out by rupture pressure disc made from glass cover-plate made from step 9) and step 10) using make-up machine
Integration glass cover-plate is made in one fitting.
To the performance of the imitative glass 3D curved surfaces cover board of integration made from embodiment 1-5 and glass cover-plate made from comparative example into
Row test, experimental result are as shown in table 1.
Table 1
Relative to the glass cover-plate of the prior art, the preparation method of glass 3D curved surface cover boards is imitated in integration of the invention, system
It is standby simple for process, the imitative glass 3D curved surface cover boards of integration obtained, relative to metal or glass cover-plate, cost savings 60%；It can
Plasticity is strong, and more than R2.0mm can be realized, is that glass workpiece cannot compare；Shock resistance reaches more than 0.5J, remote high
In the shock resistance of glass workpiece 0.2J；5G signal shielding effects are low, small to electromagnetic wave loss, overcome metallic shield effect
Shortcoming；Case hardness is 5~6H/1000g, reaches glass effects；Surface abrasion resistance is good, wearability reach 5000 times/1000g with
On；Good corrosion resistance, the corrosion of surface siliconization layer protective effect hindered acid alkali chemicals；High/low-temperature impact is good, -40 DEG C /+
Under 75 DEG C of temperature condition, more than circulation impact 48H；Ageing resistance is good, the amount of radiation 0.63w/m that UV illumination rapidly radiates2/
Phenomena such as nm, 96H are without discoloration, crackle.The imitative glass 3D curved surface cover boards of integration made from the preparation method of the present invention, have flexibility
The characteristic of AMOLED and bend glass；Suitable for mobile phone, wearing, intelligent appliance, the 3C Products such as intelligent consumption electronics；Can optimize,
Replace existing metal, glass panel.
The present invention illustrates the detailed process equipment of the present invention and technological process, but the present invention is not by above-described embodiment
Above-mentioned detailed process equipment and technological process are confined to, that is, does not mean that the present invention has to rely on above-mentioned detailed process equipment and work
Skill flow could be implemented.Person of ordinary skill in the field is it will be clearly understood that any improvement in the present invention, to product of the present invention
The equivalence replacement of each raw material and the addition of auxiliary element, the selection of concrete mode etc., all fall within protection scope of the present invention and public affairs
Within the scope of opening.
Claims (10)
1. a kind of preparation method of the imitative glass 3D curved surface cover boards of integration, which is characterized in that the preparation method includes following step
Suddenly：
1) 3D injection moldings：3D injection moldings are carried out using optical-grade transparent plastics；
2) cure process：It will be handled through step 1) 3D material hardenings after injection molding；
3) OPVD plated films：Material after step 2) cure process is subjected to OPVD plated films；
4) it sprays：Spray treatment is carried out to the material after step 3) OPVD plated films, obtains the imitative glass 3D curved surface cover boards of integration.
2. preparation method according to claim 1, which is characterized in that in step 1), the technique step of the 3D injection moldings
Suddenly it is：Material molten → upper mold → debugging → molding → injection filling → pressurize molding → cooling → die sinking.
3. preparation method according to claim 2, which is characterized in that in step 1), the optical-grade transparent plastics are poly-
Methyl methacrylate and/or makrolon；
Preferably, the temperature of the material molten is 210~250 DEG C；
Preferably, the injection pressure of the injection filling is 80~130MPa, and injection time is 2~5s；
Preferably, the molding pressure of the pressurize is 40~60MPa, and the pressurize molding time is 20~40s.
4. according to the preparation method described in one of claim 1-3, which is characterized in that in step 2), the cure process is used
Hardening bath main component for urethane acrylate, the time of the hardening is 10~20s.
5. according to the preparation method described in one of claim 1-4, which is characterized in that in step 3), the tool of the OPVD plated films
Body technology is：Hanger → vacuumize → pretreatment → ion sputtering film coating → deflation；
Preferably, the vacuum is：Cavity is vacuumized, while injects protective gas and oxidizing gas；
Preferably, the protective gas is argon gas or nitrogen；
Preferably, the ion sputtering film coating sets target evaporation plating parameter to be deposited by workbench, and the evaporation plating parameter is
7~8 layers of the number of plies is deposited, thickness is 30~50nm, and vapor deposition number is 2~3 times；
Preferably, the deflation course is：Vapor deposition terminates to be put into air in rear chamber, takes out product.
6. according to the preparation method described in one of claim 1-5, which is characterized in that in step 4), the spraying is by twice
Spraying, spraying is to prime for the first time, and second of spraying is to paint.
7. preparation method according to claim 6, which is characterized in that the priming paint includes paint AK900CB, curing agent
AK900H, diluent AKT150, the paint AK900CB, curing agent AK900H, diluent AKT150 mass ratio be 8:1:(6
~8).
8. preparation method according to claim 6, which is characterized in that the finishing coat includes paint LH-00301, curing agent
LH400, diluent LHT820, the paint LH-00301, curing agent LH400, diluent LHT820 mass ratio be 8:1:(6
~8).
9. preparation method according to claim 6, which is characterized in that prime in the spraying process and the baking after finishing coat
Roasting temperature is 60~80 DEG C, and the baking time after priming is 20~40min, and the baking time after painting is 2~4h.
10. according to the preparation method described in one of claim 1-9, which is characterized in that further include CNC processing after the spraying
Step.
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| CN109020166A (en) * | 2018-09-05 | 2018-12-18 | 苏州市灵通玻璃制品有限公司 | Preparation method of coating film of integrated curved glass display and control panel |
| CN109049939A (en) * | 2018-07-09 | 2018-12-21 | 昆山三景科技股份有限公司 | A kind of preparation method with stereo background pattern cell phone rear cover |
| CN110174817A (en) * | 2019-06-03 | 2019-08-27 | 重庆两江联创电子有限公司 | Glass cover-plate preparation method |
| CN110489019A (en) * | 2019-07-31 | 2019-11-22 | 汕头超声显示器技术有限公司 | A kind of glass plastic component and preparation method thereof for capacitance touch screen |
| CN110877461A (en) * | 2018-09-05 | 2020-03-13 | 上海龙旗科技股份有限公司 | Method for forming mobile terminal highlight texture battery cover |
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| CN111361191A (en) * | 2020-04-11 | 2020-07-03 | 东莞市广正模具塑胶有限公司 | Plastic glass imitation manufacturing process |
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| CN109049939A (en) * | 2018-07-09 | 2018-12-21 | 昆山三景科技股份有限公司 | A kind of preparation method with stereo background pattern cell phone rear cover |
| CN109020166A (en) * | 2018-09-05 | 2018-12-18 | 苏州市灵通玻璃制品有限公司 | Preparation method of coating film of integrated curved glass display and control panel |
| CN110877461A (en) * | 2018-09-05 | 2020-03-13 | 上海龙旗科技股份有限公司 | Method for forming mobile terminal highlight texture battery cover |
| CN110174817A (en) * | 2019-06-03 | 2019-08-27 | 重庆两江联创电子有限公司 | Glass cover-plate preparation method |
| CN110489019A (en) * | 2019-07-31 | 2019-11-22 | 汕头超声显示器技术有限公司 | A kind of glass plastic component and preparation method thereof for capacitance touch screen |
| CN111003929A (en) * | 2019-11-25 | 2020-04-14 | Oppo广东移动通信有限公司 | Hot bending die, shell assembly, electronic device and shell manufacturing method |
| CN111003929B (en) * | 2019-11-25 | 2022-03-22 | Oppo广东移动通信有限公司 | Hot bending die, shell assembly, electronic device and shell manufacturing method |
| CN111364005A (en) * | 2020-02-25 | 2020-07-03 | 江西沃格光电股份有限公司 | Electronic equipment backboard and manufacturing method thereof |
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Address after: 215300 Ruike Road 158, Kunshan High-tech Zone, Suzhou City, Jiangsu Province Applicant after: Kunshan Sanjing Technology Co., Ltd. Address before: 215300 South Side of North Middle Ring Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant before: Kunshan Sanjing Technology Co., Ltd. |
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Application publication date: 20180629 |