CN112645603A - Special waterfall flow type chemical etching jig and preparation method of ultrathin glass - Google Patents
Special waterfall flow type chemical etching jig and preparation method of ultrathin glass Download PDFInfo
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- CN112645603A CN112645603A CN202110051488.0A CN202110051488A CN112645603A CN 112645603 A CN112645603 A CN 112645603A CN 202110051488 A CN202110051488 A CN 202110051488A CN 112645603 A CN112645603 A CN 112645603A
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- 239000011521 glass Substances 0.000 title claims abstract description 172
- 238000003486 chemical etching Methods 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000005530 etching Methods 0.000 claims abstract description 43
- 239000002253 acid Substances 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 19
- 230000007306 turnover Effects 0.000 claims abstract description 9
- 238000005498 polishing Methods 0.000 claims description 24
- 238000005507 spraying Methods 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 10
- 230000007547 defect Effects 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims 1
- 239000012634 fragment Substances 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229940104869 fluorosilicate Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Classifications
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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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
- C03C15/02—Surface treatment of glass, not in the form of fibres or filaments, by etching for making a smooth surface
Abstract
The invention discloses a special waterfall flow type chemical etching jig and a preparation method of ultrathin glass. Including the mount pad, the mount pad internal rotation is connected with the axis of rotation, axis of rotation front end fixedly connected with support frame, the equal block of both sides right-hand member is connected with the PVC apron about the support frame, the bracing piece that support frame upper end fixedly connected with equidistance distributes, the shower is installed to the bracing piece upper end, the nozzle that shower right-hand member fixedly connected with equidistance distributes. The waterfall flow type chemical etching special jig and the preparation method of the ultrathin glass adopt the waterfall flow type chemical etching method, no pressure is needed on the glass, the glass cannot be stressed and broken, the recovery ratio is high, the waste liquid is minimum, the acid liquor utilization rate is high, a large amount of cost is saved, the conveying belt is used for conveying in the whole process, the appearance effect is good, the reworking is not needed, the yield is high, the turnover operation is not needed, the risk of fragment is reduced, the etching capacity is improved, and the sealing performance of the upper end and the lower end of the glass is ensured.
Description
Technical Field
The invention relates to the technical field of chemical etching thinning, in particular to a special waterfall flow type chemical etching jig and a preparation method of ultrathin glass.
Background
With the development and demand of modern consumer digital technology, liquid crystal displays are widely applied to consumer digital products, and liquid crystal displays made of ultrathin glass are favored by people due to the characteristics of small size, thin shape, light weight, low power consumption, low heating, low working voltage, no radiation, accurate image restoration and the like.
For the processing technology of the glass substrate, before breakthrough progress in the material industry, a raw material substrate with a thickness of more than 0.4mm must be used for ensuring the yield of the Panel finished product, so that thinning processing after the glass substrate is attached becomes a necessary choice for realizing thinning of the display module, the existing thinning processing technology adopts two modes of chemical immersion etching and spray etching, the technology can be thinned by more than 0.3mm, but the ultra-thin glass has poor toughness and is very brittle and is very sensitive to crack defects, the thinner the spray etching glass is, the more the glass cannot be supported, the glass is very easy to crack, and the defects of low processing yield, high fragment rate, poor uniformity of the plate thickness and the like exist.
Disclosure of Invention
The invention aims to provide a special waterfall flow type chemical etching jig and a preparation method of ultrathin glass, and aims to solve the problems of low processing yield, high fragment rate and poor plate thickness uniformity in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a special tool of waterfall STREAMING chemical etching, its includes the mount pad, the mount pad internal rotation is connected with the axis of rotation, axis of rotation front end fixedly connected with support frame, the equal block of both sides right-hand member is connected with the PVC apron about the support frame, the bracing piece that support frame upper end fixedly connected with equidistance distributes, the shower is installed to the bracing piece upper end, the nozzle that shower right-hand member fixedly connected with equidistance distributes.
Preferably, the support frame is of a U-shaped structure, and the height of the support frame is matched with the height of the glass to be processed.
Preferably, the length of the PVC cover plate is equal to the width of the support frame.
The invention also provides a preparation method of the ultrathin glass, which comprises the special waterfall flow type chemical etching jig, and comprises the following steps:
the method comprises the following steps: firstly, thinning the glass to the thickness of 0.3mm by adopting a conventional etching process;
step two: performing fine polishing operation on the thin glass with the thickness of 0.3mm in the step one, completely removing the defects of scratches, dirt and the like on the surface of the glass, ensuring that no bad effect exists in the surface of the thin glass and the frame effect is good, and then performing waterfall flow type chemical etching operation;
step three: carrying out a waterfall flow type chemical etching operation:
(a) mounting the thin glass after the fine polishing in the step two on a support frame, and placing a plurality of pieces of thin glass on the support frame in parallel according to the size of the thin glass;
(b) adjusting the inclination angle of the support frame through an external mechanical device, rotating a rotating shaft at the rear end of the support frame in the mounting seat, and then mounting the PVC cover plate on the support frame, so that the upper end and the lower end of the thin glass are sealed, and the acid liquor is ensured to flow only on the surface of the outer side of the thin glass;
(c) the spraying pipe is connected with acid liquor, the etching temperature and the etching rate are set, the flow of the nozzle is controlled, the mounting seat swings properly, the first etching is started, the acid liquor flows out from the spraying pipe through the nozzle and flows on the surface of the thin glass, and the thin glass is thinned to 0.1 mm;
(d) controlling the flow of the nozzle, properly swinging the mounting seat, enabling the acid liquor to flow out of the spray pipe through the nozzle, flowing on the surface of the thin glass, and performing secondary etching to thin the thin glass to 0.05 mm;
step four: after spraying is finished, the support frame is placed to the conveyor belt, then the support frame flows out of the conveyor belt to the cleaning platform, acid liquor on the surface of the glass is washed away, a multi-point test is carried out on a discharge port of the cleaning machine by using an infrared thickness gauge, and the thickness data of the glass is measured;
step five: the ultrathin glass with qualified thickness is conveyed to a turnover inspection table, the edge effect of the ultrathin glass is inspected, and the good effect of the frame of the ultrathin glass is ensured;
step six: placing the ultrathin glass into a coating machine, and performing coating operation on the ultrathin glass through the coating machine;
step seven: taking out the coated ultrathin glass, and finally inspecting the appearance of the ultrathin glass;
step eight: packaging the ultrathin glass after the detection is qualified;
step nine: and (5) delivering the packaged ultrathin glass into a warehouse.
Preferably, the materials used for fine polishing in the second step include polishing powder, an adsorption pad, a polishing pad and the like, and the particle size of the polishing powder is between 0.7 and 0.9 um.
Preferably, the turning angle of the supporting frame in the third step (b) is 75 +/-5 degrees.
Preferably, in the third step (c), the etching temperature is set to be 30 +/-2 ℃, the etching rate is controlled to be 3-5um/min, and the flow rate of the nozzle is 150 +/-20 lpm.
Preferably, the flow rate of the nozzle in the third step (d) is 100 ± 20 lpm.
Compared with the prior art, the invention has the beneficial effects that: the waterfall flow type chemical etching special jig and the preparation method of the ultrathin glass adopt the waterfall flow type chemical etching method, no pressure is needed on the glass, the glass cannot be broken by stress, the recovery ratio is high, the waste liquid is minimum, the acid liquor utilization rate is high, a large amount of cost is saved, the conveying belt is used for conveying in the whole process, the glass breaking caused by taking by personnel is avoided, the appearance effect is good, the rework is not needed, the yield is high, only one surface needs to be etched, the turnover operation is not needed, the risk of fragment is reduced, the etching capacity is improved, the waterfall flow type chemical etching special jig is suitable for the glass with the thickness of less than 0.3mm, the glass is fixed through the support frame, the sealing performance of the upper end and the lower end of the glass is ensured, the optimal etching turnover angle of the support frame is 75 +/-5 degrees through the verification and comparison of a plurality of turnover, through overturning the support frame, make the angle of support frame at 75 +/-5, can ensure that acidizing fluid and the fluorosilicate that glass produced take away from the glass surface fast, and then do not influence the etching apparent, avoid the contact time between etching solution and the glass too short simultaneously, reaction time is few, the consumption of acidizing fluid rises by a wide margin, and the practicality is stronger, and waterfall flow formula chemical etching process divide into two rounds, when spraying for the second time, reduce the flow of nozzle, reduce the impact to glass, guarantee the effect of etching, also can effectively avoid glass to break, the polishing powder particle diameter of the adoption of accurate throwing is between 0.7-0.9um, can make once polishing throughput reach 80-90%, polishing effect is optimum.
Drawings
FIG. 1 is a schematic perspective view of a jig for chemical etching in waterfall flow type according to the present invention;
FIG. 2 is a schematic front view of a special fixture for waterfall-flow chemical etching according to the present invention;
FIG. 3 is a schematic top view of a flow-type chemical etching apparatus according to the present invention;
FIG. 4 is a flow chart of a manufacturing method of ultra-thin glass according to the present invention.
In the figure: 1. a mounting seat; 2. a rotating shaft; 3. a support frame; 4. a PVC cover plate; 5. a support bar; 6. a shower pipe; 7. and (4) a nozzle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a special waterfall flow type chemical etching jig comprises a mounting seat 1, a rotating shaft 2, a support frame 3, a PVC cover plate 4, support rods 5, spraying pipes 6 and nozzles 7, wherein the rotating shaft 2 is rotatably connected in the mounting seat 1, the support frame 3 is fixedly connected to the front end of the rotating shaft 2, the PVC cover plate 4 is connected to the right ends of the upper side and the lower side of the support frame 3 in a clamping manner, the support rods 5 are fixedly connected to the upper end of the support frame 3 and distributed at equal intervals, the spraying pipes 6 are mounted at the upper ends of the support rods 5, and the nozzles 7 are fixedly connected;
furthermore, the support frame 3 is of a U-shaped structure, and the height of the support frame 3 is matched with the height of the glass to be processed, so that the glass can be placed in the support frame 3, and the stability of the glass in the support frame 3 is ensured;
furthermore, the length of the PVC cover plate 4 is equal to the width of the support frame 3, so that the sealing effect of the PVC cover plate 4 on glass is ensured;
example one
The preparation method of the ultrathin glass comprises the special waterfall flow type chemical etching jig, and comprises the following steps of:
the method comprises the following steps: firstly, thinning the glass to the thickness of 0.3mm by adopting a conventional etching process;
step two: polishing powder with the particle size of 0.7-0.9um is selected, fine polishing operation is carried out on the thin glass with the particle size of 0.3mm in the step one, the defects of scratches, dirt and the like on the surface of the glass are completely removed, and waterfall flow type chemical etching operation is carried out after the thin glass surface is free from defects and the frame effect is good;
step three: carrying out a waterfall flow type chemical etching operation:
(a) mounting the thin glass after the fine polishing in the step two on a support frame 3, and placing a plurality of pieces of thin glass on the support frame 3 in parallel according to the size of the thin glass;
(b) adjusting the inclination angle of the support frame 3 through an external mechanical device, wherein the turning angle of the support frame 3 is smaller than 70 degrees, a rotating shaft 2 at the rear end of the support frame 3 rotates in the mounting seat 1, and then a PVC cover plate 4 is mounted on the support frame 3, so that the upper end and the lower end of the thin glass are sealed, and the acid liquor is ensured to flow only on the surface of the outer side of the thin glass;
(c) the spraying pipe 6 is connected with acid liquor, the etching temperature is set to be 30 +/-2 ℃, the etching rate is controlled to be 3-5um/min, the flow of the nozzle 7 is controlled to be 150 +/-20 lpm, the mounting seat 1 is properly swung, the first etching is started, the acid liquor flows out from the spraying pipe 6 through the nozzle 7 and flows on the surface of the thin glass, and the thin glass is thinned to be 0.1 mm;
(d) controlling the flow rate of the nozzle 7 to be 100 +/-20 lpm, properly swinging the mounting seat 1, enabling the acid liquor to flow out of the spray pipe 6 through the nozzle 7 and flow on the surface of the thin glass, and performing secondary etching to thin the thin glass to 0.05 mm;
step four: after spraying is finished, the support frame 3 is placed to a conveyor belt, then the conveyor belt flows out to a cleaning platform, acid liquor on the surface of the glass is washed away, a multi-point test is carried out on a discharge port of a cleaning machine by using an infrared thickness gauge, and the thickness data of the glass is measured;
step five: the ultrathin glass with qualified thickness is conveyed to a turnover inspection table, the edge effect of the ultrathin glass is inspected, and the good effect of the frame of the ultrathin glass is ensured;
step six: placing the ultrathin glass into a coating machine, and performing coating operation on the ultrathin glass through the coating machine;
step seven: taking out the coated ultrathin glass, and finally inspecting the appearance of the ultrathin glass;
step eight: packaging the ultrathin glass after the detection is qualified;
step nine: and (5) delivering the packaged ultrathin glass into a warehouse.
When the ultra-thin glass is prepared by the first embodiment, the spraying flow of the acid solution used for etching needs to be greatly increased, so that the acid solution and the fluosilicate generated by the glass can be quickly brought away from the surface of the glass, the etching appearance is not influenced, and the surface of the finished glass is smooth and flat.
Example two
The preparation method of the ultrathin glass comprises the special waterfall flow type chemical etching jig, and comprises the following steps of:
the method comprises the following steps: firstly, thinning the glass to the thickness of 0.3mm by adopting a conventional etching process;
step two: polishing powder with the particle size of 0.7-0.9um is selected, fine polishing operation is carried out on the thin glass with the particle size of 0.3mm in the step one, the defects of scratches, dirt and the like on the surface of the glass are completely removed, and waterfall flow type chemical etching operation is carried out after the thin glass surface is free from defects and the frame effect is good;
step three: carrying out a waterfall flow type chemical etching operation:
(a) mounting the thin glass after the fine polishing in the step two on a support frame 3, and placing a plurality of pieces of thin glass on the support frame 3 in parallel according to the size of the thin glass;
(b) adjusting the inclination angle of the support frame 3 through an external mechanical device, wherein the turning angle of the support frame 3 is larger than 80 degrees, a rotating shaft 2 at the rear end of the support frame 3 rotates in the mounting seat 1, and then a PVC cover plate 4 is mounted on the support frame 3, so that the upper end and the lower end of the thin glass are sealed, and the acid liquor is ensured to flow only on the surface of the outer side of the thin glass;
(c) the spraying pipe 6 is connected with acid liquor, the etching temperature is set to be 30 +/-2 ℃, the etching rate is controlled to be 3-5um/min, the flow of the nozzle 7 is controlled to be 150 +/-20 lpm, the mounting seat 1 is properly swung, the first etching is started, the acid liquor flows out from the spraying pipe 6 through the nozzle 7 and flows on the surface of the thin glass, and the thin glass is thinned to be 0.1 mm;
(d) controlling the flow rate of the nozzle 7 to be 100 +/-20 lpm, properly swinging the mounting seat 1, enabling the acid liquor to flow out of the spray pipe 6 through the nozzle 7 and flow on the surface of the thin glass, and performing secondary etching to thin the thin glass to 0.05 mm;
step four: after spraying is finished, the support frame 3 is placed to a conveyor belt, then the conveyor belt flows out to a cleaning platform, acid liquor on the surface of the glass is washed away, a multi-point test is carried out on a discharge port of a cleaning machine by using an infrared thickness gauge, and the thickness data of the glass is measured;
step five: the ultrathin glass with qualified thickness is conveyed to a turnover inspection table, the edge effect of the ultrathin glass is inspected, and the good effect of the frame of the ultrathin glass is ensured;
step six: placing the ultrathin glass into a coating machine, and performing coating operation on the ultrathin glass through the coating machine;
step seven: taking out the coated ultrathin glass, and finally inspecting the appearance of the ultrathin glass;
step eight: packaging the ultrathin glass after the detection is qualified;
step nine: and (5) delivering the packaged ultrathin glass into a warehouse.
When the ultra-thin glass is prepared according to the second embodiment, the contact time between the etching solution and the glass is too short, the reaction time is short, the consumption of the acid solution is greatly increased, and the surface of the finished glass is smooth and flat.
EXAMPLE III
The preparation method of the ultrathin glass comprises the special waterfall flow type chemical etching jig, and comprises the following steps of:
the method comprises the following steps: firstly, thinning the glass to the thickness of 0.3mm by adopting a conventional etching process;
step two: polishing powder with the particle size of 0.7-0.9um is selected, fine polishing operation is carried out on the thin glass with the particle size of 0.3mm in the step one, the defects of scratches, dirt and the like on the surface of the glass are completely removed, and waterfall flow type chemical etching operation is carried out after the thin glass surface is free from defects and the frame effect is good;
step three: carrying out a waterfall flow type chemical etching operation:
(a) mounting the thin glass after the fine polishing in the step two on a support frame 3, and placing a plurality of pieces of thin glass on the support frame 3 in parallel according to the size of the thin glass;
(b) adjusting the inclination angle of the support frame 3 through an external mechanical device, wherein the turning angle of the support frame 3 is 75 +/-5 degrees, a rotating shaft 2 at the rear end of the support frame 3 rotates in the mounting seat 1, and then a PVC cover plate 4 is mounted on the support frame 3, so that the upper end and the lower end of the thin glass are sealed, and the acid liquor is ensured to flow only on the surface of the outer side of the thin glass;
(c) the spraying pipe 6 is connected with acid liquor, the etching temperature is set to be 30 +/-2 ℃, the etching rate is controlled to be 3-5um/min, the flow of the nozzle 7 is controlled to be 150 +/-20 lpm, the mounting seat 1 is properly swung, the first etching is started, the acid liquor flows out from the spraying pipe 6 through the nozzle 7 and flows on the surface of the thin glass, and the thin glass is thinned to be 0.1 mm;
(d) controlling the flow rate of the nozzle 7 to be 100 +/-20 lpm, properly swinging the mounting seat 1, enabling the acid liquor to flow out of the spray pipe 6 through the nozzle 7 and flow on the surface of the thin glass, and performing secondary etching to thin the thin glass to 0.05 mm;
step four: after spraying is finished, the support frame 3 is placed to a conveyor belt, then the conveyor belt flows out to a cleaning platform, acid liquor on the surface of the glass is washed away, a multi-point test is carried out on a discharge port of a cleaning machine by using an infrared thickness gauge, and the thickness data of the glass is measured;
step five: the ultrathin glass with qualified thickness is conveyed to a turnover inspection table, the edge effect of the ultrathin glass is inspected, and the good effect of the frame of the ultrathin glass is ensured;
step six: placing the ultrathin glass into a coating machine, and performing coating operation on the ultrathin glass through the coating machine;
step seven: taking out the coated ultrathin glass, and finally inspecting the appearance of the ultrathin glass;
step eight: packaging the ultrathin glass after the detection is qualified;
step nine: and (5) delivering the packaged ultrathin glass into a warehouse.
When ultrathin glass is prepared according to the third embodiment, the fluosilicate generated by the acid liquor and the glass can be quickly taken away from the surface of the glass, so that the etching appearance is not influenced, the contact time between the etching solution and the glass is proper, the reaction time is just short, the consumption of the acid liquor is greatly reduced, and the surface of finished glass is smooth and flat.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a special tool of waterfall STREAMING chemical etching, a serial communication port, including mount pad (1), the rotation is connected with axis of rotation (2) in mount pad (1), axis of rotation (2) front end fixedly connected with support frame (3), the equal block in both sides right-hand member is connected with PVC apron (4) about support frame (3), bracing piece (5) that support frame (3) upper end fixedly connected with equidistance distributes, shower (6) are installed to bracing piece (5) upper end, nozzle (7) that shower (6) right-hand member fixedly connected with equidistance distributes.
2. The waterfall flow type chemical etching special fixture as claimed in claim 1, wherein: the support frame (3) is of a U-shaped structure, and the height of the support frame (3) is matched with the height of glass to be processed.
3. The waterfall flow type chemical etching special fixture as claimed in claim 1, wherein: the length of the PVC cover plate (4) is equal to the width of the support frame (3).
4. A preparation method of ultra-thin glass is characterized by comprising the special waterfall flow type chemical etching jig according to claims 1-3, and the preparation method comprises the following steps:
the method comprises the following steps: firstly, thinning the glass to the thickness of 0.3mm by adopting a conventional etching process;
step two: performing fine polishing operation on the thin glass with the thickness of 0.3mm in the step one, completely removing the defects of scratches, dirt and the like on the surface of the glass, ensuring that no bad effect exists in the surface of the thin glass and the frame effect is good, and then performing waterfall flow type chemical etching operation;
step three: carrying out a waterfall flow type chemical etching operation:
(a) mounting the thin glass subjected to fine polishing in the step two on a support frame (3), and placing a plurality of pieces of thin glass on the support frame (3) in parallel according to the size of the thin glass;
(b) adjusting the inclination angle of the support frame (3) through an external mechanical device, rotating a rotating shaft (2) at the rear end of the support frame (3) in the mounting seat (1), and then mounting a PVC cover plate (4) on the support frame (3), so that the upper end and the lower end of the thin glass are sealed, and the acid liquor is ensured to flow only on the surface of the outer side of the thin glass;
(c) the spraying pipe (6) is connected with acid liquor, the etching temperature and the etching rate are set, the flow of the nozzle (7) is controlled, the mounting seat (1) swings properly, the first etching is started, the acid liquor flows out from the spraying pipe (6) through the nozzle (7) and flows on the surface of the thin glass, and the thin glass is thinned to 0.1 mm;
(d) controlling the flow of the nozzle (7), properly swinging the mounting seat (1), enabling the acid liquor to flow out from the spray pipe (6) through the nozzle (7) and flow on the surface of the thin glass, and performing secondary etching to thin the thin glass to 0.05 mm;
step four: after spraying is finished, the support frame (3) is placed to a conveyor belt, then the conveyor belt flows out to a cleaning platform, acid liquor on the surface of the glass is washed away, and a multi-point test is carried out on a discharge port of a cleaning machine by using an infrared thickness gauge to measure the thickness data of the glass;
step five: the ultrathin glass with qualified thickness is conveyed to a turnover inspection table, the edge effect of the ultrathin glass is inspected, and the good effect of the frame of the ultrathin glass is ensured;
step six: placing the ultrathin glass into a coating machine, and performing coating operation on the ultrathin glass through the coating machine;
step seven: taking out the coated ultrathin glass, and finally inspecting the appearance of the ultrathin glass;
step eight: packaging the ultrathin glass after the detection is qualified;
step nine: and (5) delivering the packaged ultrathin glass into a warehouse.
5. The method according to claim 4, wherein the polishing step is performed by using polishing powder, an adsorption pad, a polishing pad, and the like, and the particle size of the polishing powder is 0.7-0.9 μm.
6. The method of claim 4, wherein the angle of rotation of the support (3) in step three (b) is within the range of 75 ± 5 °.
7. The method of claim 4, wherein the etching temperature is set to 30 ± 2 ℃, the etching rate is controlled to 3-5um/min, and the flow rate of the nozzle (7) is 150 ± 20lpm in the third step (c).
8. The method of claim 4, wherein the flow rate of the nozzle (7) in step three (d) is 100 ± 20 lpm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292246A (en) * | 2021-06-02 | 2021-08-24 | 中建材蚌埠玻璃工业设计研究院有限公司 | Continuous production device for glass thinning |
| CN113943109A (en) * | 2021-11-12 | 2022-01-18 | Oppo广东移动通信有限公司 | Preparation method of anti-glare glass, shell and electronic equipment |
| CN114656157A (en) * | 2022-04-19 | 2022-06-24 | 广州亦盛环保科技有限公司 | High-flash glass panel and preparation method and application thereof |
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| CN113943109B (en) * | 2021-11-12 | 2023-11-03 | Oppo广东移动通信有限公司 | Preparation method of anti-glare glass, shell and electronic equipment |
| CN114656157A (en) * | 2022-04-19 | 2022-06-24 | 广州亦盛环保科技有限公司 | High-flash glass panel and preparation method and application thereof |
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Application publication date: 20210413 |