CN117700075A - Method for processing textured glass by adopting tungsten steel mold - Google Patents
Method for processing textured glass by adopting tungsten steel mold Download PDFInfo
- Publication number
- CN117700075A CN117700075A CN202311709089.4A CN202311709089A CN117700075A CN 117700075 A CN117700075 A CN 117700075A CN 202311709089 A CN202311709089 A CN 202311709089A CN 117700075 A CN117700075 A CN 117700075A
- Authority
- CN
- China
- Prior art keywords
- tungsten steel
- glass
- die
- steel mold
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 98
- 239000010959 steel Substances 0.000 title claims abstract description 98
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 98
- 239000010937 tungsten Substances 0.000 title claims abstract description 98
- 239000011521 glass Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 238000010147 laser engraving Methods 0.000 claims description 10
- 238000004512 die casting Methods 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 2
- 238000005496 tempering Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910002804 graphite Inorganic materials 0.000 abstract description 8
- 239000010439 graphite Substances 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 238000005242 forging Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
- C03B11/082—Construction of plunger or mould for making solid articles, e.g. lenses having profiled, patterned or microstructured surfaces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
- C03B11/084—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention provides a method for processing textured glass by adopting a tungsten steel die, which comprises the following steps: providing a tungsten steel mold with textures; and placing the glass substrate in the tungsten steel mold for hot forging forming, and forming textures on the surface of the glass substrate. According to the method for processing the textured glass by adopting the tungsten steel mold, the tungsten steel mold with the surface textures is adopted to carry out hot press molding on the surface of the glass, so that the textured glass with fine, complex and various lines can be prepared, and the defects that a graphite mold cannot withstand high temperature for a long time, is high in oxidation speed, high in cost and low in yield can be avoided.
Description
Technical Field
The invention relates to the technical field of glass processing, in particular to a method for processing textured glass by adopting a tungsten steel die.
Background
With the development of technology and the improvement of living standard of people, the requirements on the appearance of electronic equipment such as mobile phones are higher and higher. Glass is often used as a housing material for electronic devices such as mobile phones, and it is often desirable to form a texture on the surface of the glass for aesthetic or operational purposes.
In the prior art, the textures are generally formed on the surface of the glass by adopting different acid etches to form AG textures with different haze on the surface of the glass so as to achieve the appearance effect of the textures, and the textures cover plate glass is also formed by transferring different UV textures on the surface of the glass. Although the mode of forming AG textures with different haze on the surface of glass by acid etching is novel, the presented texture effect is various, has the characteristics of matt and bright surface alternation, and the touch feeling is also certain to be soft. However, the texture process formed by the method is complex and needs exposure and development, HF solution etching and other processes, the waste liquid is not friendly to the environment, and the waste liquid treatment is complicated, so that the method has higher time and economic cost. At present, a graphite mold with textures is adopted for hot pressing, textures are formed on the surface of glass, and the method is large in brittleness, cannot obtain complicated and various textures with finer lines and is short in service life.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a method for processing textured glass by adopting a tungsten steel mold, and the surface of the glass is subjected to hot press molding by adopting the tungsten steel mold with textures on the surface, so that the textured glass with fine, complex and various lines can be prepared, and the defects that a graphite mold cannot withstand high temperature for a long time, and is high in oxidation speed, high in cost and low in yield can be avoided.
The invention provides a method for processing textured glass by adopting a tungsten steel die, which comprises the following steps:
providing a tungsten steel mold with textures;
and placing the glass substrate in the tungsten steel mold for hot press molding, and forming textures on the surface of the glass substrate.
In the invention, a tungsten steel mold with textures acts on the surface of a glass substrate, and after hot press molding, the textures of the tungsten steel mold can be transferred to the surface of the glass substrate, so that the textures are formed on the surface of the glass substrate.
Preferably, the tungsten steel die comprises a tungsten steel male die and a tungsten steel female die, and the surface of the tungsten steel male die and/or the surface of the tungsten steel female die are provided with textures;
preferably, a texture is formed on the surface of the tungsten steel male die and/or the tungsten steel female die by adopting a laser engraving mode, and a tungsten steel die with the texture is provided.
Preferably, at least 1 station is used for heating, die casting and cooling the glass substrate placed in the tungsten steel die, so that the glass substrate is subjected to hot press molding.
Preferably, 7 stations are used for heating the glass substrate placed in the tungsten steel mold;
preferably, the temperature of the 7 stations is 670-730 ℃, 720-780 ℃, 770-830 ℃, 810-870 ℃, 830-890 ℃ and the residence time of each station is 50-300s.
Preferably, 3 work stations are adopted to carry out die casting molding on the glass substrate placed in the tungsten steel die;
preferably, the temperature of the 3 stations is 830-890 ℃, 750-810 ℃ in turn, and the residence time of each station is 50-300s.
Preferably, 80-150Kg/cm is used 2 And (3) carrying out die casting molding on the glass substrate placed in the tungsten steel die.
Preferably, 3 work stations are adopted to cool the glass substrate placed in the tungsten steel mold;
preferably, the temperatures of the 3 stations are 670-730 ℃, 570-630 ℃ and 420-480 ℃ in sequence, and the residence time of each station is 50-300s.
According to the invention, the texture of the tungsten steel mold is realized on the surface of the glass substrate by controlling the heating, die-casting forming and cooling processes of the glass substrate, so that the textured glass can be produced, the working procedure is simple and easy to operate, and the flexibility is high; due to the accurate control of the temperature, the glass piece has certain fluidity, the texture is formed conveniently, and meanwhile, the stability of the texture can be reduced due to the excessively strong fluidity.
Preferably, after forming the texture on the surface of the glass substrate, the method further comprises: and polishing and tempering the glass substrate.
The invention also provides the textured glass which is processed by the method.
Compared with the method for processing the textured glass by adopting the graphite die, the method for processing the textured glass by adopting the tungsten steel die provided by the invention has the advantages that (1) compared with the method for processing the textured glass by adopting the graphite die, the graphite die starts to be oxidized and damaged after being subjected to high temperature for 6 hours, the service life of the graphite die is only 48 hours, the processing cost of the die is high, the service life of the tungsten steel die is more than 480 hours, the tungsten steel die can resist high temperature of 1000 ℃ and is not deformed, the cost of the tungsten steel die for processing the textured glass is saved by more than 10 times compared with the graphite die, the continuous production can be realized, the maintenance-free productivity is improved by more than 2 times, and the yield is improved by more than 20 times. (2) The textured glass is prepared through hot press molding of the tungsten steel mold, the method is simple and efficient, the formed texture is high in precision, the texture lines are fine, the distance between adjacent textures is controllable, the defect of edge collapse of the texture lines can be greatly reduced, the texture appearance is diversified, and therefore the complex texture pattern is prepared.
Drawings
FIG. 1 is a schematic view of a tungsten steel mold according to the present invention;
FIG. 2 is a schematic structural diagram of a textured glass obtained by the processing method of example 1 of the present invention.
Detailed Description
The technical scheme of the present invention will be described in detail by means of specific examples, which should be explicitly set forth for illustration, but should not be construed as limiting the scope of the present invention.
Example 1
The embodiment provides a method for processing textured glass by adopting a tungsten steel die, which comprises the following steps:
(1) Providing a tungsten steel die, comprising a tungsten steel male die and a tungsten steel female die, drawing textures to be manufactured on the tungsten steel die by utilizing drawing software of CAD and UG, determining the size and depth of the textures, and performing laser engraving on the tungsten steel female die by adopting laser engraving equipment to form the textures on the surface of the tungsten steel female die, wherein the tungsten steel die can be shown by referring to FIG. 1; providing 2D glass with the thickness of 0.8mm, cutting, cleaning and drying for later use;
(2) Placing the 2D glass in a cavity formed by matching the tungsten steel male die and the tungsten steel female die, and then sending the 2D glass into a plurality of work stations for hot press molding: heating in 7 stations at 700 deg.C, 750 deg.C, 800 deg.C, 840 deg.C, 860 deg.C and 8 deg.CThe residence time of each station is 150s at 60 ℃ and 860 ℃; then the mixture is sent into 3 work stations for die casting forming, the temperature of the 3 work stations is 860 ℃ and 780 ℃ in turn, the residence time of each work station is 150s, and 110Kg/cm is adopted 2 Is die-cast and formed by the pressure of the mold; finally, the mixture is sent into 3 work stations for cooling; the temperature of the 3 work stations is 700 ℃, 600 ℃, 450 ℃ in sequence, and the residence time of each work station is 150s; finally, textures are formed on the 2D glass surface, and the textured glass is obtained, and can be shown by referring to FIG. 2.
Example 2
The embodiment provides a method for processing textured glass by adopting a tungsten steel die, which comprises the following steps:
(1) Providing a tungsten steel die, comprising a tungsten steel male die and a tungsten steel female die, drawing textures to be manufactured on the tungsten steel die by utilizing drawing software of CAD and UG, determining the size and depth of the textures, and performing laser engraving on the tungsten steel female die by adopting laser engraving equipment to form the textures on the surface of the tungsten steel female die, wherein the tungsten steel die can be shown by referring to FIG. 1; providing 2D glass with the thickness of 0.8mm, cutting, cleaning and drying for later use;
(2) Placing the 2D glass in a cavity formed by matching the tungsten steel male die and the tungsten steel female die, and then sending the 2D glass into a plurality of work stations for hot press molding: firstly, feeding the materials into 7 work stations for heating, wherein the temperature of the 7 work stations is 670 ℃, 720 ℃, 770 ℃, 810 ℃, 830 ℃ and 150s of residence time of each work station; then the mixture is sent into 3 work stations for die casting forming, the temperature of the 3 work stations is 830 ℃, 830 ℃ and 750 ℃ in turn, the residence time of each work station is 150s, and 150Kg/cm is adopted 2 Is die-cast and formed by the pressure of the mold; finally, the mixture is sent into 3 work stations for cooling; the temperature of the 3 work stations is 670 ℃, 570 ℃ and 420 ℃ in sequence, and the residence time of each work station is 150s; and finally, forming textures on the surface of the 2D glass to obtain the textured glass.
Example 3
The embodiment provides a method for processing textured glass by adopting a tungsten steel die, which comprises the following steps:
(1) Providing a tungsten steel die, comprising a tungsten steel male die and a tungsten steel female die, drawing textures to be manufactured on the tungsten steel die by utilizing drawing software of CAD and UG, determining the size and depth of the textures, and performing laser engraving on the tungsten steel female die by adopting laser engraving equipment to form the textures on the surface of the tungsten steel female die, wherein the tungsten steel die can be shown by referring to FIG. 1; providing 2D glass with the thickness of 0.8mm, cutting, cleaning and drying for later use;
(2) Placing the 2D glass in a cavity formed by matching the tungsten steel male die and the tungsten steel female die, and then sending the 2D glass into a plurality of work stations for hot press molding: firstly, feeding the materials into 7 work stations for heating, wherein the temperature of the 7 work stations is 730 ℃, 780 ℃, 830 ℃, 870 ℃, 890 ℃ and 890 ℃ in sequence, and the residence time of each work station is 150s; then the mixture is sent into 3 work stations for die casting forming, the temperature of the 3 work stations is 890 ℃, 890 ℃ and 810 ℃ in sequence, the residence time of each work station is 150s, and 80Kg/cm is adopted 2 Is die-cast and formed by the pressure of the mold; finally, the mixture is sent into 3 work stations for cooling; the temperature of the 3 work stations is 730 ℃, 630 ℃ and 480 ℃ in sequence, and the residence time of each work station is 150s; and finally, forming textures on the surface of the 2D glass to obtain the textured glass.
Comparative example 1
The comparative example proposes a method for processing textured glass by adopting a tungsten steel mold, comprising the following steps:
(1) Providing a tungsten steel die, comprising a tungsten steel male die and a tungsten steel female die, drawing textures to be manufactured on the tungsten steel die by utilizing drawing software of CAD and UG, determining the size and depth of the textures, and performing laser engraving on the tungsten steel female die by adopting laser engraving equipment to form the textures on the surface of the tungsten steel female die, wherein the tungsten steel die can be shown by referring to FIG. 1; providing 2D glass with the thickness of 0.8mm, cutting, cleaning and drying for later use;
(2) Placing the 2D glass in a cavity formed by matching the tungsten steel male die and the tungsten steel female die, and then sending the 2D glass into a plurality of work stations for hot press molding: heating in 1 station at 750 deg.C, 800 deg.C, 850 deg.C, 900 deg.C, 920 deg.C for a residence time of each station150s; then the mixture is sent into 3 work stations for die casting forming, the temperature of the 3 work stations is 920 ℃, 930 ℃ and 800 ℃ in sequence, the residence time of each work station is 150s, and 110Kg/cm is adopted 2 Is die-cast and formed by the pressure of the mold; finally, the mixture is sent into 3 work stations for cooling; the temperature of the 3 work stations is 600 ℃, 500 ℃ and 350 ℃ in sequence, and the residence time of each work station is 150s; and finally, forming textures on the surface of the 2D glass to obtain the textured glass.
The dimensional accuracy of the textured glass obtained in the examples and comparative examples was calculated by CAV and the presence of bumps, bubbles or orange peel in the processing was counted, and the results are shown in table 1 below:
TABLE 1
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. A method of processing textured glass using a tungsten steel mold, comprising:
providing a tungsten steel mold with textures;
and placing the glass substrate in the tungsten steel mold for hot press molding, and forming textures on the surface of the glass substrate.
2. The method for processing textured glass using a tungsten steel mold according to claim 1, wherein the tungsten steel mold comprises a tungsten steel male mold and a tungsten steel female mold, and the surface of the tungsten steel male mold and/or the surface of the tungsten steel female mold are textured;
preferably, a texture is formed on the surface of the tungsten steel male die and/or the tungsten steel female die by adopting a laser engraving mode, and a tungsten steel die with the texture is provided.
3. The method of processing textured glass using a tungsten steel mold according to claim 1 or 2, wherein the glass substrate placed in the tungsten steel mold is heated, die-cast and cooled using at least 1 station, thereby performing hot press molding.
4. A method of processing textured glass using a tungsten steel mold according to claim 3, wherein 7 stations are used to heat a glass substrate placed in the tungsten steel mold;
preferably, the temperature of the 7 stations is 670-730 ℃, 720-780 ℃, 770-830 ℃, 810-870 ℃, 830-890 ℃ and the residence time of each station is 50-300s.
5. The method for manufacturing textured glass using a tungsten steel mold according to claim 3 or 4, wherein the glass substrate placed in the tungsten steel mold is die-cast using 3 stations;
preferably, the temperature of the 3 stations is 830-890 ℃, 750-810 ℃ in turn, and the residence time of each station is 50-300s.
6. The method for manufacturing textured glass using a tungsten steel mold according to any one of claims 3 to 5, wherein 80 to 150Kg/cm is used 2 And (3) carrying out die casting molding on the glass substrate placed in the tungsten steel die.
7. The method of processing textured glass using a tungsten steel mold according to any one of claims 3-6, wherein 3 stations are used to cool a glass substrate placed in the tungsten steel mold;
preferably, the temperatures of the 3 stations are 670-730 ℃, 570-630 ℃ and 420-480 ℃ in sequence, and the residence time of each station is 50-300s.
8. The method of texturing glass using a tungsten steel mold according to any one of claims 1-7, further comprising, after texturing the glass substrate surface: and polishing and tempering the glass substrate.
9. A textured glass, characterized in that it is processed by the method of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311709089.4A CN117700075A (en) | 2023-12-13 | 2023-12-13 | Method for processing textured glass by adopting tungsten steel mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311709089.4A CN117700075A (en) | 2023-12-13 | 2023-12-13 | Method for processing textured glass by adopting tungsten steel mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117700075A true CN117700075A (en) | 2024-03-15 |
Family
ID=90143667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311709089.4A Pending CN117700075A (en) | 2023-12-13 | 2023-12-13 | Method for processing textured glass by adopting tungsten steel mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117700075A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109111092A (en) * | 2018-11-22 | 2019-01-01 | 瑞声光学科技（常州）有限公司 | Glass baseplate processing mold and glass baseplate processing method |
| CN111847841A (en) * | 2020-07-14 | 2020-10-30 | 南京迈得特光学有限公司 | Precision mould pressing die structure for one-step forming of glass lenses |
| CN213446819U (en) * | 2020-10-30 | 2021-06-15 | 蓝思科技（长沙）有限公司 | Hot-pressing die |
| CN113182788A (en) * | 2021-04-21 | 2021-07-30 | 东莞市凯融光学科技有限公司 | Manufacturing method of tungsten steel mold core |
| CN115594392A (en) * | 2022-09-26 | 2023-01-13 | 合肥金龙浩科技有限公司（Cn） | Machining and forming process of 2D glass with different thicknesses and application of machining and forming process in mobile phone rear cover |
| US20230373841A1 (en) * | 2022-04-25 | 2023-11-23 | AAC Optics (Chongqing) Co., Ltd. | Molding mold of glass product |
-
2023
- 2023-12-13 CN CN202311709089.4A patent/CN117700075A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109111092A (en) * | 2018-11-22 | 2019-01-01 | 瑞声光学科技（常州）有限公司 | Glass baseplate processing mold and glass baseplate processing method |
| CN111847841A (en) * | 2020-07-14 | 2020-10-30 | 南京迈得特光学有限公司 | Precision mould pressing die structure for one-step forming of glass lenses |
| CN213446819U (en) * | 2020-10-30 | 2021-06-15 | 蓝思科技（长沙）有限公司 | Hot-pressing die |
| CN113182788A (en) * | 2021-04-21 | 2021-07-30 | 东莞市凯融光学科技有限公司 | Manufacturing method of tungsten steel mold core |
| US20230373841A1 (en) * | 2022-04-25 | 2023-11-23 | AAC Optics (Chongqing) Co., Ltd. | Molding mold of glass product |
| CN115594392A (en) * | 2022-09-26 | 2023-01-13 | 合肥金龙浩科技有限公司（Cn） | Machining and forming process of 2D glass with different thicknesses and application of machining and forming process in mobile phone rear cover |
Non-Patent Citations (1)
| Title |
|---|
| 郑耀辉: "工程训练 基础实训项目指导", 31 August 2021, 北京：北京理工大学出版, pages: 166 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104445888B (en) | A kind of forming method of bend glass | |
| CN106624652B (en) | A kind of circular metal plate rotary forging forming and machining method | |
| CN110845126B (en) | Method for preparing electronic equipment shell, electronic equipment shell and electronic equipment | |
| CN107032585A (en) | The forming method of 3D bend glass plates and the 3D bend glass plates obtained by the forming method | |
| CN104860514A (en) | Production technology for hot bending of bent glass | |
| TWI628149B (en) | Glass plate 3D curved surface non-contact processing system and method | |
| CN114226589B (en) | Stamping process for sheet metal of automobile body panel | |
| CN112551872A (en) | Manufacturing method of arc-shaped glass with single-side texture | |
| CN110803862A (en) | Curved glass manufacturing method, curved glass and electronic equipment | |
| CN105013940A (en) | Double-faced embossment precious metal foil piece and molding technology thereof | |
| CN117700075A (en) | Method for processing textured glass by adopting tungsten steel mold | |
| CN105712612A (en) | Manufacturing method of 3D glass cover plates | |
| CN208022908U (en) | A kind of glass bending furnace and bend glass hot bending equipment | |
| CN105170833A (en) | Precise-punching and stretching forming method for gear ring | |
| CN111116020A (en) | Hot forging forming processing technology for shell with different thicknesses of electronic device | |
| CN115594392A (en) | Machining and forming process of 2D glass with different thicknesses and application of machining and forming process in mobile phone rear cover | |
| CN106584012A (en) | Shaping method for amorphous alloy | |
| CN115780655A (en) | Forming method of cavity type aluminum alloy part | |
| CN112705656B (en) | H13E shield hob ring forming process | |
| CN206204145U (en) | A kind of hot bending die of three sheet metal formings | |
| CN109678332A (en) | Glass board material 3D curved surface noncontact processing system and method | |
| CN111116019A (en) | Hot bending processing technology for electronic device shell | |
| CN115818934A (en) | Machining and forming method of 3D glass with different thicknesses for mobile phone rear cover | |
| CN115677188A (en) | Processing technology of glass hot-forging texture | |
| CN215279412U (en) | Full-automatic precision trimming die with die feet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |