CN110642506A - Glass corrugated plate hot bending device and application thereof - Google Patents
Glass corrugated plate hot bending device and application thereof Download PDFInfo
- Publication number
- CN110642506A CN110642506A CN201911100009.9A CN201911100009A CN110642506A CN 110642506 A CN110642506 A CN 110642506A CN 201911100009 A CN201911100009 A CN 201911100009A CN 110642506 A CN110642506 A CN 110642506A
- Authority
- CN
- China
- Prior art keywords
- glass
- corrugated plate
- hot bending
- semi
- bending device
- 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
- 239000011521 glass Substances 0.000 title claims abstract description 106
- 238000013003 hot bending Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 229910001374 Invar Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000005388 borosilicate glass Substances 0.000 claims description 3
- 239000005361 soda-lime glass Substances 0.000 claims description 3
- 239000005354 aluminosilicate glass Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 12
- 238000007493 shaping process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 239000005328 architectural glass Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- -1 curved arch profile Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
- C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention relates to a glass corrugated plate hot bending device and application thereof. The main body of the glass corrugated plate hot bending device is arranged in a hollow structure, so that the absorption of heat by a mould is reduced, the thermal cycle effect is good, the mould is favorably and uniformly heated, the service life of the mould is prolonged, the glass is favorably and accurately formed, the upper mould and the lower mould are matched to realize the forming of hot bent glass, the forming precision is high, and the glass corrugated plate hot bending device can be used for processing precise hot bent glass corrugated plates.
Description
Technical Field
The invention relates to a glass corrugated plate hot bending device and application thereof, belonging to the field of glass deep processing.
Background
The hot bending glass is curved glass which is made by heating, bending and softening high-quality glass, forming in a mould and annealing in order to meet the high-quality requirements of modern buildings. The style is beautiful, and the lines are smooth. The glass breaks through the singleness of the plate glass, and is more flexible and diverse in use.
The hot bending glass can be classified into three categories, namely single bending, bending and composite bending, according to the shape. For single-bend architectural glass, the glass is relatively easy to heat bend. The common aquarium glass and counter glass exist in bent hot-bent glass, and the biggest technical difficulty of bent glass is that the straight line edge is bent, and the bent angle is easy to have the defects of mold marks and the like. Therefore, curved glass is also common, such as spherical glass, curved arch profile, glass washbasin, etc., and the glass requires a high technical level in hot bending operation, and the manufacturing of precise molds can be completed only by a professional hot bending furnace.
The glass corrugated plate is hot-bent glass with multiple bent surfaces, the distances of all the bent surfaces are short, the bending radius is small, and no professional hot-bending mold exists at present.
Disclosure of Invention
In view of the above, the present invention provides a device for thermally bending a corrugated glass sheet and an application thereof.
On one hand, the invention provides a glass corrugated plate hot bending device which comprises a lower die, wherein the lower die comprises a first bottom support, a plurality of first semi-cylindrical rods are arranged in the first bottom support, and a plurality of positioning guide columns are arranged around the first bottom support.
Preferably, the device further comprises an upper die connected with the lower die, the upper die comprises a second bottom support, a plurality of second semi-cylindrical rods are arranged in the second bottom support, and a plurality of positioning guide holes matched with the positioning guide pillars are formed in the periphery of the second bottom support.
Preferably, the first semi-cylindrical rod and the second semi-cylindrical rod are both hollow structures so as to facilitate uniform temperature rise of the upper die and the lower die, the hollow structures are small in size, and the temperature difference between each part of the upper die and each part of the lower die is small.
Preferably, the plurality of first semi-cylindrical rods and the plurality of second semi-cylindrical rods are arranged in a row, respectively.
Preferably, the first bottom support and the second bottom support are hollow structures.
Preferably, the first bottom support and the second bottom support are square frame structures with the same specification.
Preferably, a right-angle glass positioning plate is arranged at one corner of the first bottom support.
Preferably, the upper second bottom support is further provided with a hook for lifting.
Preferably, the number of the first semicylindrical rods is one more than the number of the second semicylindrical rods.
Preferably, the diameters of the first semi-cylindrical rod and the second semi-cylindrical rod can be the same or different, the bending curvatures of the upper arch and the lower arch of the corrugated plate are the same when the corrugated plates are directly same, and the bending curvatures of the upper arch and the lower arch are different when the corrugated plates are different, so that different specifications of products can be met.
Preferably, the center lines of the positioning guide posts and the positioning guide holes are overlapped and vertical to the combination plane of the upper die and the lower die, and the number of the positioning guide posts and the number of the positioning guide holes are 2-4 respectively.
Preferably, the upper and lower molds are made of aluminum, steel, monolithic graphite, ceramic, silicone rubber, electroformed nickel, invar steel or copper alloy.
In another aspect, the present invention provides a method for manufacturing a corrugated glass plate, including the steps of:
putting glass on a lower die, pressing an upper die, integrally putting the glass corrugated plate hot bending device in a muffle furnace hearth, heating to the softening temperature of the glass, preserving heat for 4-40 minutes, cooling, taking out the glass corrugated plate hot bending device from the hearth, and taking off the upper die to obtain the glass corrugated plate.
Preferably, the method for manufacturing the glass corrugated plate includes the steps of:
putting glass on a lower die, pressing an upper die, integrally putting the glass corrugated plate hot bending device in a muffle furnace hearth, heating to the softening temperature of the glass, preserving heat for 4-40 minutes, cooling, taking out the glass corrugated plate hot bending device from the hearth, and taking off the upper die to obtain the glass corrugated plate.
Preferably, the glass is selected from one of soda lime glass, aluminosilicate glass or borosilicate glass.
In another aspect, the present invention provides a glass corrugated sheet made by the above method.
In another aspect, the invention provides a solar cover plate comprising the glass corrugated plate.
By means of the technical scheme, the glass corrugated plate hot bending device at least has the following advantages:
the glass bending mould with multiple bending directions and dense corrugations belongs to the domestic initiative, and can be used for directly processing common plate glass through hot bending to obtain glass corrugated plates. The existing corrugated plate is generally prepared by directly pouring glass hot-melt liquid, the working environment is high, hot-melt equipment must be matched, and the process is complex.
Two, the mould main part adopts hollow structure to set up, has reduced mould itself to thermal absorption, and the thermal cycle is effectual, is favorable to the thermally equivalent of mould, has both prolonged the life-span of mould and does benefit to glass's accurate shaping again, adopts the cooperation of last lower mould to realize the shaping to the curved glass of heat simultaneously, and the shaping precision is high, can be used for processing the curved glass buckled plate of accurate heat.
Drawings
FIG. 1 is a schematic structural view of a device for thermally bending a corrugated glass sheet according to a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of another apparatus for thermally bending glass corrugated sheets according to a preferred embodiment of the present invention;
fig. 3 is a schematic view showing the structure of a glass corrugated plate manufactured by using the glass corrugated plate hot bending apparatus of fig. 1.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the preferred embodiments are combined as follows. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Materials, reagents and the like used in the following examples are commercially available.
Example 1
As shown in fig. 1, a glass corrugated plate hot-bending device comprises a lower die 1 and an upper die 2 which are connected with each other, wherein the lower die 1 comprises a hollow first bottom support 11, a plurality of first semi-cylindrical rods 12 are arranged in the first bottom support 11, a plurality of positioning guide pillars 13 are arranged around the first bottom support 11, the upper die 2 comprises a hollow second bottom support 21, a plurality of second semi-cylindrical rods 22 are arranged in the second bottom support 21, and a plurality of positioning guide holes 23 matched with the positioning guide pillars 13 are arranged around the second bottom support 21. The center lines of the positioning guide pillars 13 and the positioning guide holes 23 are overlapped with each other and are vertical to the combination plane of the upper die and the lower die, and the number of the positioning guide pillars 13 and the number of the positioning guide holes 23 are respectively 4. The first bottom support 11 and the second bottom support 21 are square frame structures with the same specification. A glass positioning plate 14 is arranged at one corner of the first bottom support 11. The second bottom support 21 is further provided with a hook 24 for lifting. The first semi-cylindrical rod 12 and the second semi-cylindrical rod 22 are respectively arranged in a row and are both hollow structures, so that the uniform temperature rise of the die is facilitated, the hollow structures are small in size, and the temperature difference of all parts of the die is small. The radius of the first semi-cylindrical rods 12 is 12.5mm, the number of the first semi-cylindrical rods is 7, and the center distance between every two adjacent first semi-cylindrical rods 12 is 30 mm; the radius of the second semi-cylindrical rods 22 is 10mm, the number of the second semi-cylindrical rods is 8, and the center distance between two adjacent second semi-cylindrical rods 22 is 30 mm. The upper and lower molds may be made of aluminum or steel, monolithic graphite, ceramic, silicon rubber, electroformed nickel, invar steel, copper alloy, etc., and generally, aluminum, graphite or ceramic molds are used. Ordinary 1.1mm soda-lime-silica glass is placed on a lower die 1, a glass positioning plate 14 is positioned, then an upper die 2 is pressed, the glass corrugated plate hot bending device is integrally placed in a hot bending furnace, the temperature is slowly raised to 600 ℃ per minute at 5 ℃, the glass state is observed through an observation hole of the hot bending furnace, after the glass is bent in place for about 15 minutes, the hot bending furnace is closed, the temperature is naturally reduced, the glass corrugated plate hot bending device is taken out after the temperature is lower than 50 ℃, the upper die 2 is lifted, and the corrugated plate is taken out, so that the glass corrugated plate 100' with the fixed upper and lower bent arches is obtained, as shown in fig. 3. When the upper mold and the lower mold are matched, the upper surface and the lower surface of the glass are tightly attached to the glass in the hot bending process, the precision of the curvature of the upper surface and the lower surface of the glass is ensured, the upper arch curvature and the lower arch curvature of the prepared glass are completely matched with the designed mold, and the method is suitable for preparing the glass corrugated plate with high precision requirement.
Example 2
As shown in fig. 2, a glass corrugated plate hot-bending device is mainly used for a glass corrugated plate with a relaxed requirement on the radian of an upper hot-bending circular arc, and compared with embodiment 1, the glass corrugated plate hot-bending device of the present embodiment only comprises a lower mold 1, wherein the lower mold 1 comprises a hollow first bottom support 11, and a plurality of first semi-cylindrical rods 12 are arranged in the first bottom support 11. The lower die 1 can be of a solid or hollow structure, the radius of each first semi-cylindrical rod 12 is 10mm, the number of the first semi-cylindrical rods is 8, and the center distance between every two adjacent first semi-cylindrical rods 12 is 30 mm. A glass positioning plate (not shown) is provided at one of the corners of the first bottom bracket 11. The lower die 1 may be made of aluminum or steel, integral graphite, ceramic, silicon rubber, electroformed nickel, invar steel, copper alloy, or the like. Put 1.1mm borosilicate glass 100 on bed die 1, glass locating plate 14 location, then put into hot bending furnace with this glass buckled plate hot bending device is whole, every minute 5 degrees slowly heat up to 720 degrees, observe the glass state through hot bending furnace observation hole, the curved back that targets in place of glass about 25 minutes, close this hot bending furnace, naturally cool down to the temperature and take out this glass buckled plate hot bending device after being less than 50 degrees, take out this buckled plate, obtain the glass buckled plate that has fixed upper and lower curved arch. When the lower die is independently adopted for hot bending, the upper surface of the glass is in direct contact with air, the temperature rise of the glass in the hot bending process is facilitated, the upper surface of the prepared glass corrugated plate is very smooth because no pressure exists on the upper surface, but the precision is slightly poor because only the die is arranged below the upper surface, and the method is mainly used for processing the glass corrugated plate which has low precision requirement and high surface quality requirement.
Through the test, adopt the glass buckled plate of embodiment 1 preparation, its curvature error is within 1.5 milliradians, adopts the glass buckled plate of embodiment 2 preparation its curvature error about 2 milliradians, adopts the first mode, and the accuracy is higher. In addition, the glass corrugated plate prepared in example 1 has a small number of pits or depressions on the upper and lower surfaces thereof, while the glass corrugated plate prepared in example 2 has a small number of pits or depressions on the lower surface thereof, and has shallow depressions and no pits or depressions on the upper surface thereof, so that the relative number thereof is small.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (14)
1. The utility model provides a curved device of glass buckled plate heat, its characterized in that, includes the bed die, the bed die includes first collet, be equipped with a plurality of first semicylindrical sticks in the first collet, be equipped with a plurality of location guide pillars around the first collet.
2. The device according to claim 1, further comprising an upper mold connected to the lower mold, wherein the upper mold comprises a second bottom support, a plurality of second semi-cylindrical rods are disposed in the second bottom support, and a plurality of positioning guide holes are disposed around the second bottom support and are engaged with the positioning guide posts.
3. The apparatus according to claim 2, wherein the first and second semi-cylindrical rods are both hollow structures; the plurality of first semi-cylindrical rods and the plurality of second semi-cylindrical rods are respectively arranged in a row.
4. The apparatus according to claim 3, wherein the first and second bottom supports are hollow.
5. A device according to claim 4, wherein the first and second supports are of square frame construction of the same dimension.
6. A device according to claim 1 or 5, wherein a right-angled glass positioning plate is provided at one of the corners of the first bottom support.
7. The glass corrugated sheet hot bending apparatus according to claim 6, wherein the second bottom support is further provided with a hook for lifting.
8. A device according to claim 7, characterized in that the number of the first semi-cylindrical bars is one more than the number of the second semi-cylindrical bars.
9. The apparatus according to claim 8, wherein the center lines of the guide posts and the guide holes are coincident with each other and perpendicular to the bonding plane of the upper and lower molds, and the number of the guide posts and the guide holes is 2-4; the upper die and the lower die are made of aluminum, steel, integral graphite, ceramic, silicon rubber, electroformed nickel, invar steel or copper alloy.
10. A manufacturing method of a glass corrugated plate is characterized by comprising the following steps:
putting glass on a lower die, pressing an upper die, integrally putting the glass corrugated plate hot bending device in a muffle furnace hearth, heating to the softening temperature of the glass, preserving heat for 4-40 minutes, cooling, taking out the glass corrugated plate hot bending device from the hearth, and taking off the upper die to obtain the glass corrugated plate.
11. The manufacturing method according to claim 10, characterized by comprising the steps of:
putting glass on a plurality of first semicylinder rods of a lower die of the glass corrugated plate hot bending device, accurately positioning a right-angle positioning plate at one corner top of the glass, pressing an upper die of the glass corrugated plate hot bending device into a whole, integrally putting the glass corrugated plate hot bending device in a muffle furnace hearth, heating to the softening temperature of the glass, preserving heat for 5-30 minutes, cooling to a temperature lower than 50 ℃, taking the glass corrugated plate hot bending device out of the hearth, and taking an upper die down to obtain the glass corrugated plate.
12. The method of manufacturing according to claim 10, wherein the glass is selected from one of soda lime glass, aluminosilicate glass, or borosilicate glass.
13. A glass corrugated board, characterized in that it is produced by the method according to any one of claims 10-12.
14. A solar cover panel, characterized in that it comprises a glass corrugated panel according to claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100009.9A CN110642506A (en) | 2019-11-12 | 2019-11-12 | Glass corrugated plate hot bending device and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100009.9A CN110642506A (en) | 2019-11-12 | 2019-11-12 | Glass corrugated plate hot bending device and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110642506A true CN110642506A (en) | 2020-01-03 |
Family
ID=69014614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911100009.9A Pending CN110642506A (en) | 2019-11-12 | 2019-11-12 | Glass corrugated plate hot bending device and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110642506A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH091248A (en) * | 1995-06-14 | 1997-01-07 | S K R Kk | Multi-step drawing-in formation of corrugated sheet for package and forming die mechanism |
| CN1227769A (en) * | 1999-02-01 | 1999-09-08 | 华东理工大学 | Corrugated plate regular packing of glass fibre reinforced plastics and its preparing process |
| JP2006083008A (en) * | 2004-09-15 | 2006-03-30 | Ams:Kk | Method of producing glass cap of organic el device |
| CN103359919A (en) * | 2013-06-26 | 2013-10-23 | 中国建筑材料科学研究总院 | Glass hot-bending die as well as manufacturing method and application thereof |
| CN203346259U (en) * | 2013-06-26 | 2013-12-18 | 中国建筑材料科学研究总院 | Glass hot bending mold |
| CN107867793A (en) * | 2017-10-31 | 2018-04-03 | 广东欧珀移动通信有限公司 | Bend glass cover plate, the preparation method of bend glass cover plate and mobile terminal |
| CN211111696U (en) * | 2019-11-12 | 2020-07-28 | 中国建筑材料科学研究总院有限公司 | Hot bending device for glass corrugated plate |
-
2019
- 2019-11-12 CN CN201911100009.9A patent/CN110642506A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH091248A (en) * | 1995-06-14 | 1997-01-07 | S K R Kk | Multi-step drawing-in formation of corrugated sheet for package and forming die mechanism |
| CN1227769A (en) * | 1999-02-01 | 1999-09-08 | 华东理工大学 | Corrugated plate regular packing of glass fibre reinforced plastics and its preparing process |
| JP2006083008A (en) * | 2004-09-15 | 2006-03-30 | Ams:Kk | Method of producing glass cap of organic el device |
| CN103359919A (en) * | 2013-06-26 | 2013-10-23 | 中国建筑材料科学研究总院 | Glass hot-bending die as well as manufacturing method and application thereof |
| CN203346259U (en) * | 2013-06-26 | 2013-12-18 | 中国建筑材料科学研究总院 | Glass hot bending mold |
| CN107867793A (en) * | 2017-10-31 | 2018-04-03 | 广东欧珀移动通信有限公司 | Bend glass cover plate, the preparation method of bend glass cover plate and mobile terminal |
| CN211111696U (en) * | 2019-11-12 | 2020-07-28 | 中国建筑材料科学研究总院有限公司 | Hot bending device for glass corrugated plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103237770B (en) | For the method and apparatus of cambering glass sheets | |
| US11066321B2 (en) | Mold, molding apparatus, production method of molded body, and molded body | |
| EP2128099B1 (en) | Method and apparatus for forming curved glass plate | |
| GB2213143A (en) | Method of forming a glass product | |
| JP2014139121A (en) | Method and device for manufacturing cover glass for display | |
| US20100126222A1 (en) | Method and apparatus for forming and cutting a shaped article from a sheet of material | |
| CN211111696U (en) | Hot bending device for glass corrugated plate | |
| CN106348576A (en) | Production device and method of single-curved surface tempered glass | |
| CN109985955B (en) | Isothermal hot drawing forming device and method for controlling wall thickness uniformity of component | |
| CN206396056U (en) | A kind of mobile phone bend glass screen system of processing | |
| CN207435305U (en) | One kind is suitable for the molding mold heating board combining structure of large-size glass | |
| JP2001089172A5 (en) | Glass sheet bending apparatus and bending method | |
| CN208022908U (en) | A kind of glass bending furnace and bend glass hot bending equipment | |
| CN110642506A (en) | Glass corrugated plate hot bending device and application thereof | |
| CN112340972B (en) | Biomedical bottle processing technology | |
| CN101948236A (en) | Corner glass piece toughening treatment process | |
| CN113087369A (en) | Forming method of multi-curvature arc glass | |
| CN209890492U (en) | Glass tempering device and glass forming system | |
| JPH01242428A (en) | Method for molding glass product | |
| CN207330729U (en) | Model solid glass mold | |
| CN112520991A (en) | Shaping, shaping and toughening equipment for flat and curved glass and shaping, shaping and toughening process thereof | |
| CN210061732U (en) | Curing tool for polymer adhesive film | |
| CN215095578U (en) | Self-heating plastic suction mould | |
| CN208440512U (en) | A kind of glass plate hot bending shape graphite jig | |
| CN219363498U (en) | Hot bending die |
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 |