CN115636574B - Processing method of special-shaped curved surface glass - Google Patents
Processing method of special-shaped curved surface glass Download PDFInfo
- Publication number
- CN115636574B CN115636574B CN202211400268.5A CN202211400268A CN115636574B CN 115636574 B CN115636574 B CN 115636574B CN 202211400268 A CN202211400268 A CN 202211400268A CN 115636574 B CN115636574 B CN 115636574B
- Authority
- CN
- China
- Prior art keywords
- glass
- special
- shaped curved
- processing
- less
- 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.)
- Active
Links
- 239000011521 glass Substances 0.000 title claims abstract description 193
- 238000003672 processing method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- 238000007688 edging Methods 0.000 claims abstract description 18
- 238000003475 lamination Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims description 21
- 239000004744 fabric Substances 0.000 claims description 20
- 238000010304 firing Methods 0.000 claims description 19
- 238000000227 grinding Methods 0.000 claims description 17
- 239000005340 laminated glass Substances 0.000 claims description 15
- 238000005452 bending Methods 0.000 claims description 12
- 239000011229 interlayer Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005496 tempering Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 7
- 238000013003 hot bending Methods 0.000 claims description 6
- 239000002390 adhesive tape Substances 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
- 239000001307 helium Substances 0.000 claims description 5
- 229910052734 helium Inorganic materials 0.000 claims description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 206010037660 Pyrexia Diseases 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 238000007592 spray painting technique Methods 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000003872 anastomosis Effects 0.000 description 2
- 238000013075 data extraction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention specifically discloses a processing method of special-shaped curved glass, which comprises the following processing steps: s1, modeling and extracting data; s2, manufacturing a special-shaped curved surface steel mold; s3, slicing glass; s4, edging the original sheet; s5, glass is thermally bent and tempered; s6, cleaning glass; s7, glass lamination. The method for processing the special-shaped curved glass provides a new possibility for processing the special-shaped curved glass curtain wall, is simple and convenient to operate, has high quality of formed glass products, meets the requirements and standards of construction sites, and has good popularization prospect.
Description
Technical Field
The invention relates to the field of glass processing, in particular to a processing method of special-shaped curved glass.
Background
In some public buildings, in order to create landmark buildings and to make the design outstanding, some streamline lines, single curved surfaces, double curved surfaces and even multi-curved surface methods are generally adopted for design combination, so that more attractive, more outstanding curved and more representative buildings are shown. In particular to a special-shaped curved surface glass curtain wall in a special-shaped building, because the special-shaped curved surface glass curtain wall not only provides higher requirements and standards for construction, but also provides higher requirements and standards for special-shaped curved surface glass processing.
Because the special-shaped curved surface glass is not square like common glass and has simple structure, the coordinate point, the blanking size and the processing size are easy to determine. And the glass and the sheet and PVB construction difficulty is increased due to abnormal shape in the process of combining sheets, so that smooth processing of the abnormal curved curtain wall glass is ensured, the field construction requirement is met, and the problem to be solved is solved urgently.
Disclosure of Invention
Based on the method, the invention provides a processing method of the special-shaped curved glass, which reduces the construction difficulty in the forming and lamination process of the special-shaped curved glass and ensures the quality of the curved glass curtain wall.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a processing method of special-shaped curved glass, which comprises the following processing steps:
s1, modeling and extracting data: building a 3D model by using BIM modeling software, and extracting data such as glass processing blanking, processing size, quantity and positioning coordinates;
s2, manufacturing a special-shaped curved surface steel die: determining the blanking size of glass by using a grid space model, bending and forming the steel pipes according to the curvature of grid transverse lines during manufacturing, placing a curved steel pipe at intervals of 100mm, and splicing the curved steel pipes into a special-shaped curved steel mold according to the curvature of grid vertical lines;
s3, glass slicing: converting the three-dimensional coordinate data extracted in the step S1 into plane coordinate data, and cutting the original sheet according to a conventional common glass processing method;
s4, edging the original sheet: performing primary sheet edging by using an edging machine, wherein the grinding amount is controlled to be less than 2.5mm when the glass thickness is less than 8mm, and less than 1.5mm when the glass thickness is less than 10-19 mm; and (3) controlling the feeding speed: when the glass thickness is below 8mm, the speed is less than 2.5m, and when the glass thickness is below 10-19 mm, the speed is less than 1.5m;
s5, glass is thermally bent and tempered: heating the glass raw sheet to 700 ℃ by using heating equipment, softening, and pressing by using a male mold and a female mold;
s6, cleaning glass: removing foreign matters on the surface of the glass in a manual cleaning mode;
s7, glass lamination: vacuum-clamping the glued sheet, vacuum-bagging, sintering in a kettle, cooling and exhausting to obtain a glass finished product.
The invention provides a processing method of special-shaped curved glass, which comprises the following steps of spray painting colored glaze.
Further, the special-shaped curved surface steel mould in the step S2 is divided into a male mould and a female mould; the size of the male mold and the female mold is reserved with the margin of the rebound size of glass hot bending tempering, the deviation of a curved surface is +/-2.5 mm, and the deviation of the external size is +/-3 mm.
Further, the manual cleaning in step S6 is to remove the foreign matters on the glass surface by bonding with a bonding roller.
Further, in the step S6, the manual cleaning manner is to use absolute ethanol to erase the foreign matters on the surface of the glass.
Further, the vacuum lamination bonding sheet in step S7 includes: vacuum is pumped out by using equipment, two pieces of glass and PVB film placed in an interlayer are combined under the pressure of 10KG, a stretch bender is used for stretch bending of aluminum grid strips, and helium is filled after the process is completed.
Further, the PVB film has a water content of less than 0.2%; the storage environment temperature of the PVB film is 22-28 ℃, and the humidity is less than 28%.
Further, the vacuum bagging and kettle feeding firing in the step S7 comprises the following steps: after the lamination is completed, a layer of backing cloth is wrapped on the edge of the glass, a layer of felt cloth is wrapped outside the backing cloth, the backing cloth is fixed by a high-temperature adhesive tape to prevent falling, then the bent laminated glass is placed into a high-temperature-resistant vacuum bag with an air tap, the vacuum is pre-pumped, the laminated glass is placed into an autoclave after the pre-pumping is completed, the placing gap is more than 100mm, and the autoclave is put into a kettle for firing.
Further, the pre-vacuumizing time is more than 30min, and the vacuum pressure is-0.03 Mpa/square meter.
Further, the temperature of the reactor is 135-145 ℃, the pressure is 12.5-13 bar, and the time of the reactor is 90-120min in the process of sintering.
Further, cooling the exhaust gas in the step S7 includes: after firing, cooling the kettle, wherein the cooling rate is more than or equal to 3.3 ℃/min, and exhausting when the temperature in the kettle is less than 45 ℃ to obtain a glass finished product.
Based on the technical scheme, the embodiment of the invention at least has the following technical effects:
(1) The invention provides a processing method of special-shaped curved glass, and also provides a manufacturing step of a special-shaped curved steel mould, so that the deviation of the curved surface formed by firing glass is within +/-2.5 mm, the deviation of the external dimension is within +/-3 mm, and the product quality of laminated glass can be met to the maximum extent.
(2) According to the processing method of the special-shaped curved surface glass, disclosed by the invention, in the vacuum lamination process, the glass product is heated uniformly, and after the firing is finished, the temperature can be quickly reduced, so that uneven transmittance caused by uneven heating is prevented.
(3) According to the processing method of the special-shaped curved surface glass, provided by the invention, in the exhaust process, the cooling rate is kept to be more than or equal to 3.3 ℃/min, the temperature is less than 45 ℃, the transmittance of a glass product can be reduced due to too high temperature and too early exhaust, the haze of the product is increased, and the quality of the product is affected.
(3) The method for processing the special-shaped curved surface glass is simple and convenient to operate, and the formed glass product is high in quality, meets requirements and standards of construction sites, and has good popularization prospect.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention;
fig. 2 is a flow chart of an embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are provided to illustrate the invention and are not intended to limit the scope of the invention. Those skilled in the art can ascertain the essential characteristics of this invention, and without departing from the spirit and scope thereof, can make various changes and modifications of the invention to adapt it to various usages and conditions.
A processing method of special-shaped curved glass comprises the following processing steps:
s1, modeling and extracting data: building a 3D model by using BIM modeling software, and extracting data such as glass processing blanking, processing size, quantity and positioning coordinates;
s2, manufacturing a special-shaped curved surface steel die: determining the blanking size of glass by using a grid space model, bending and forming the steel pipes according to the curvature of grid transverse lines during manufacturing, placing a curved steel pipe at intervals of 100mm, and splicing the curved steel pipes into a special-shaped curved steel mold according to the curvature of grid vertical lines;
s3, glass slicing: converting the three-dimensional coordinate data extracted in the step S1 into plane coordinate data, and cutting the original sheet according to a conventional common glass processing method;
s4, edging the original sheet: performing primary sheet edging by using an edging machine, wherein the grinding amount is controlled to be less than 2.5mm when the glass thickness is less than 8mm, and less than 1.5mm when the glass thickness is less than 10-19 mm; and (3) controlling the feeding speed: when the glass thickness is below 8mm, the speed is less than 2.5m, and when the glass thickness is below 10-19 mm, the speed is less than 1.5m;
s5, glass is thermally bent and tempered: heating the glass raw sheet to 700 ℃ by using heating equipment, softening, and pressing by using a male mold and a female mold;
s6, cleaning glass: removing foreign matters on the surface of the glass in a manual cleaning mode;
s7, glass lamination: vacuum-clamping the glued sheet, vacuum-bagging, sintering in a kettle, cooling and exhausting to obtain a glass finished product.
The invention provides a processing method of special-shaped curved glass, which comprises the optional step of spray painting colored glaze.
Further, the special-shaped curved surface steel mould in the step S2 is divided into a male mould and a female mould; the size of the male mold and the female mold is reserved with the margin of the rebound size of glass hot bending tempering, the deviation of a curved surface is +/-2.5 mm, and the deviation of the external size is +/-3 mm.
Further, the manual cleaning in step S6 is to remove the foreign matters on the glass surface by bonding with a bonding roller.
Further, in the step S6, the manual cleaning manner is to use absolute ethanol to erase the foreign matters on the surface of the glass.
Further, the vacuum lamination bonding sheet in step S7 includes: vacuum is pumped out by using equipment, two pieces of glass and PVB film placed in an interlayer are combined under the pressure of 10KG, a stretch bender is used for stretch bending of aluminum grid strips, and helium is filled after the process is completed.
Further, the PVB film has a water content of less than 0.2%; the storage environment temperature of the PVB film is 22-28 ℃, and the humidity is less than 28%.
Further, the vacuum bagging and kettle feeding firing in the step S7 comprises the following steps: after the lamination is completed, a layer of backing cloth is wrapped on the edge of the glass, a layer of felt cloth is wrapped outside the backing cloth, the backing cloth is fixed by a high-temperature adhesive tape to prevent falling, then the bent laminated glass is placed into a high-temperature-resistant vacuum bag with an air tap, the vacuum is pre-pumped, the laminated glass is placed into an autoclave after the pre-pumping is completed, the placing gap is more than 100mm, and the autoclave is put into a kettle for firing.
Further, the pre-vacuumizing time is more than 30min, and the vacuum pressure is-0.03 Mpa/square meter.
Further, the temperature of the reactor is 135-145 ℃, the pressure is 12.5-13 bar, and the time of the reactor is 90-120min in the process of sintering.
Further, cooling the exhaust gas in the step S7 includes: after firing, cooling the kettle, wherein the cooling rate is more than or equal to 3.3 ℃/min, and exhausting when the temperature in the kettle is less than 45 ℃ to obtain a glass finished product.
Example 1 Special-shaped curved glass shaping and manufacturing
S1, modeling and extracting data: according to a construction design drawing of the special-shaped curved surface glass, a 3D model is established on a computer by using BIM modeling software, data such as glass processing blanking, processing size, quantity and positioning coordinates are extracted, and the data extraction is carried out on the main body steel structure frame by using a BIM technology, so that a hyperboloid model is established. Introducing a Revit parameterized special-shaped curved surface glass model into Rhino software, extracting a series of space positioning parameters such as a glass plate warpage value, a glass plate size and the like by adopting a GH plug-in unit to form a curved surface glass processing sheet, and submitting the curved surface glass processing sheet to a processing plant;
s2, manufacturing a special-shaped curved surface steel die: the blanking size of the glass is determined by using a grid space model, a steel pipe is bent and formed according to the curvature of grid transverse lines during manufacturing, a curved steel pipe is placed at each interval of 100mm, the curved steel pipes are spliced into a special-shaped curved steel mold according to the curvature of grid vertical lines, the rebound size allowance of the glass in the firing process is reserved, the curved surface deviation of the glass is ensured to be within +/-2.5 mm, the outline size deviation is ensured to be within +/-3 mm, the mold is divided into a male mold and a female mold, the product quality of laminated glass can be met to the greatest extent, the quality of a bent interlayer is directly determined by the anastomosis degree of the mold, and even the later-stage service life of a bent interlayer product is influenced.
S3, glass slicing: converting three-dimensional coordinate data extracted by using BIM to establish a 3D model in the step S1 into plane coordinate data, cutting the raw sheet according to a conventional common glass processing method, and edging the raw sheet after the cutting of the raw sheet is completed.
S4, edging the original sheet: the edge grinding machine is a JH-3000 medium-sized edge grinding machine which is developed and produced by Sichuan Jintai Hongwei glass machinery;
before use, checking whether the grinding wheel of the edge grinder is loose, the abrasion degree, the circulating water is clean or not, and after routine checking, preheating the edge grinder for starting up, and performing trial grinding.
After trial grinding, carrying out raw sheet edging treatment on the glass raw sheet by using an edging machine, controlling the feeding speed of the glass raw sheet to be 2.5m and controlling the grinding amount to be 2.5mm; the grinding amount refers to the amount of glass lost during cutting.
S5, glass is thermally bent and tempered: heating a glass raw sheet to 700 ℃ by using heating equipment, softening, pressing by using a male mold and a female mold, scanning and checking whether the glass raw sheet accords with a design drawing by using a 3D scanner after molding, tempering by placing the glass raw sheet into a tempering furnace after qualified, and scanning and detecting whether a product is qualified by using the 3D scanner again after hot bending tempering.
S6, cleaning glass: and cleaning the glass product which is qualified in detection, removing foreign matters on the surface of the glass in a manual cleaning mode, cleaning and wiping with dust-free cloth and absolute ethyl alcohol, and performing the operation of paving PVB film in the next step after the absolute ethyl alcohol volatilizes, so that the phenomenon that part of the ethyl alcohol remains in the PVB film layer to form steam bubbles is prevented, and the bonding performance of the PVB film and the glass is reduced.
S7, glass lamination: the method comprises the steps of clamping a glued sheet in vacuum, taking out a PVB film, wherein the storage environment temperature of the PVB film is 28 ℃, the humidity is 27%, the water content of the PVB film is 0.2%, paving the PVB film and an interlayer of two pieces of glass, and putting the PVB film and the interlayer into a laminating device together;
vacuum in the device is pumped out by using equipment, two pieces of glass and PVB film placed in the interlayer are combined under the pressure of 10KG, an aluminum grid bar is stretch-bent by using a stretch bender, and helium is filled after the process is completed.
Vacuum bagging, baking, wrapping a layer of cloth around the glass edge after lamination, wrapping a layer of felt outside the cloth, fixing with high temperature adhesive tape to prevent falling, and placing the bent laminated glass into a high temperature vacuum bag with air tap of more than 3m 2 The glass of the glass is filled into a high-temperature-resistant vacuum bag with 2 air nozzles, and before being filled into a kettle, the glass needs to be pre-vacuumized for a long time>30min, vacuum pressure of-0.03 Mpa/square meter, placing the laminated glass into autoclave after pre-pumping, and placing gap>100mm to do benefit to the even circulation of thermal cycle wind in the cauldron, guarantee that the product is heated evenly in the autoclave, and can cool down fast after the heat preservation is finished, prevent to be heated unevenly and form the transmittance uneven, enter the cauldron and fire, check vacuum bag is taken up before the cauldron of fever, have the gas leakage phenomenon, if gas leakage phenomenon need in time handle, after the cauldron begins of fever, continue the vacuum until the cauldron is opened, the temperature control is 140 ℃, the pressure is 12.5bar, firing time 100min.
Cooling and exhausting to obtain a glass finished product, cooling the kettle after firing, wherein the cooling rate is more than or equal to 3.3 ℃/min, cooling and exhausting when the temperature in the kettle is less than 45 ℃, taking out the glass to perform trimming treatment to obtain the glass finished product, and selecting unqualified products for reworking.
Finally, the special-shaped curved surface glass is sent to a frame sticking processing plant for glass frame sticking, the glass frames are stretch-bent into special-shaped curved surfaces in a stretch bending factory in advance, and after the quality of the stuck frames is qualified, the glass frames are sent to a construction site.
Example 2 Special-shaped curved surface colored glaze glass shaping and manufacturing
S1, modeling and extracting data: according to a construction design drawing of the special-shaped curved surface glass, a 3D model is established on a computer by using BIM modeling software, data such as glass processing blanking, processing size, quantity and positioning coordinates are extracted, and the data extraction is carried out on the main body steel structure frame by using a BIM technology, so that a hyperboloid model is established. Introducing a Revit parameterized special-shaped curved surface glass model into Rhino software, extracting a series of space positioning parameters such as a glass plate warpage value, a glass plate size and the like by adopting a GH plug-in unit to form a curved surface glass processing sheet, and submitting the curved surface glass processing sheet to a processing plant;
s2, manufacturing a special-shaped curved surface steel die: the blanking size of the glass is determined by using a grid space model, a steel pipe is bent and formed according to the curvature of grid transverse lines during manufacturing, a curved steel pipe is placed at each interval of 100mm, the curved steel pipes are spliced into a special-shaped curved steel mold according to the curvature of grid vertical lines, the rebound size allowance of the glass in the firing process is reserved, the curved surface deviation of the glass is ensured to be within +/-2.5 mm, the outline size deviation is ensured to be within +/-3 mm, the mold is divided into a male mold and a female mold, the product quality of laminated glass can be met to the greatest extent, the quality of a bent interlayer is directly determined by the anastomosis degree of the mold, and even the later-stage service life of a bent interlayer product is influenced.
S3, glass slicing: converting three-dimensional coordinate data extracted by using BIM to establish a 3D model in the step S1 into plane coordinate data, cutting the raw sheet according to a conventional common glass processing method, and edging the raw sheet after the cutting of the raw sheet is completed.
S4, edging the original sheet: the edge grinding machine is a JH-3000 medium-sized edge grinding machine which is developed and produced by Chuanjin Taihongwei glass machinery;
before use, checking whether the grinding wheel of the edge grinder is loose, the abrasion degree, the circulating water is clean or not, and after routine checking, preheating the edge grinder for starting up, and performing trial grinding.
After trial grinding, carrying out raw sheet edging treatment on the glass raw sheet by using an edging machine, controlling the feeding speed of the glass raw sheet to be 1.5m and controlling the grinding amount to be 1.5mm; the grinding amount refers to the amount of glass lost during cutting.
S5, spray painting colored glaze: the method comprises the steps of carrying out high-temperature spray painting on colored glaze by special equipment, wherein an ultra-white coated glass raw sheet is divided into a coated surface and an uncoated surface, and the colored glaze surface is arranged on the uncoated surface. The glass is subjected to colored glaze treatment and then is subjected to glass hot bending tempering, the colored glaze surface and the low-e film are required to be positioned on the concave surface of the glass in the process of entering the steel bending furnace after the colored glaze and the film plating process of the different-row glass, but the engineering vertical surface glass has outward-protruding curved glass and inward-concave curved glass, so that the effect of the colored glaze and the low-e film is consistent, and the concave-curved glass is required to be positioned on the convex surface of the glass because the colored glaze surface and the film plating surface, when the glass directly enters the steel bending furnace for bending, the colored glaze and the low-e film surface can be scraped, and the inward-concave curved glass is required to be independently opened to enter the special steel bending furnace.
S6, glass is thermally bent and tempered: heating a glass raw sheet to 700 ℃ by using heating equipment, softening, pressing by using a male mold and a female mold, scanning and checking whether the glass raw sheet accords with a design drawing by using a 3D scanner after molding, tempering by placing the glass raw sheet into a tempering furnace after qualified, and scanning and detecting whether a product is qualified by using the 3D scanner again after hot bending tempering.
S7, cleaning glass: and cleaning the glass product which is qualified in detection, removing foreign matters on the surface of the glass in a manual cleaning mode, cleaning and wiping with dust-free cloth and absolute ethyl alcohol, and performing the operation of paving PVB film in the next step after the absolute ethyl alcohol volatilizes, so that the phenomenon that part of the ethyl alcohol remains in the PVB film layer to form steam bubbles is prevented, and the bonding performance of the PVB film and the glass is reduced.
S8, glass lamination: vacuum laminating the PVB film, taking out the PVB film, storing the PVB film at 28 ℃ and 27% of humidity, and placing the PVB film and the interlayer of two pieces of glass into a film combining device
Vacuum in the device is pumped out by using equipment, two pieces of glass and PVB film placed in the interlayer are combined under the pressure of 10KG, an aluminum grid bar is stretch-bent by using a stretch bender, and helium is filled after the process is completed.
Vacuum bagging and kettle feedingFiring, wrapping a layer of backing cloth on the edge of glass after lamination, wrapping a layer of felt cloth outside the backing cloth, fixing with high temperature adhesive tape to prevent falling, and placing the bent laminated glass into a high temperature vacuum bag with air tap, wherein the thickness of the bent laminated glass is more than 3m 2 The glass of the glass is filled into a high-temperature-resistant vacuum bag with 2 air nozzles, and before being filled into a kettle, the glass needs to be pre-vacuumized for a long time>30min, vacuum pressure of-0.03 Mpa/square meter, placing the laminated glass into autoclave after pre-pumping, and placing gap>100mm to do benefit to the even circulation of thermal cycle wind in the cauldron, guarantee that the product is heated evenly in the autoclave, and can cool down fast after the heat preservation is finished, prevent to be heated unevenly and form the transmittance uneven, enter the cauldron and fire, check vacuum bag is taken up before the cauldron of fever, have the gas leakage phenomenon, if gas leakage phenomenon need in time handle, after the cauldron begins of fever, continue the vacuum until the cauldron is opened, the temperature control is 140 ℃, the pressure is 12.5bar, firing time 100min.
Cooling and exhausting to obtain a glass finished product, cooling the kettle after firing, wherein the cooling rate is more than or equal to 3.3 ℃/min, taking out the glass to perform trimming treatment to obtain the glass finished product when the temperature in the kettle is less than 45 ℃, and selecting unqualified products for reworking.
Finally, the special-shaped curved surface glass is sent to a frame sticking processing plant for glass frame sticking, the glass frames are stretch-bent into special-shaped curved surfaces in a stretch bending factory in advance, and after the quality of the stuck frames is qualified, the glass frames are sent to a construction site.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Claims (7)
1. The processing method of the special-shaped curved glass is characterized by comprising the following processing steps of:
s1, modeling and extracting data: building a 3D model by using BIM modeling software, and extracting glass processing blanking, processing size, quantity and positioning coordinate data;
s2, manufacturing a special-shaped curved surface steel die: determining the blanking size of glass by using a grid space model, bending and forming steel pipes according to the curvature of grid transverse lines during manufacturing, placing a curved steel pipe at intervals of 100mm, and splicing the curved steel pipes into special-shaped curved steel molds according to the curvature of grid vertical lines, wherein the special-shaped curved steel molds are divided into a male mold and a female mold; the size of the male mold and the female mold is reserved with the margin of the rebound size of glass hot bending tempering, the deviation of a curved surface is +/-2.5 mm, and the deviation of the external size is +/-3 mm;
s3, glass slicing: converting the three-dimensional coordinate data extracted in the step S1 into plane coordinate data, and cutting the original sheet according to a conventional common glass processing method;
s4, edging the original sheet: performing primary sheet edging by using an edging machine, wherein the grinding amount is controlled to be less than 2.5mm when the glass thickness is less than 8mm, and less than 1.5mm when the glass thickness is less than 10-19 mm; and (3) controlling the feeding speed: when the glass thickness is below 8mm, the speed is less than 2.5m, and when the glass thickness is below 10-19 mm, the speed is less than 1.5m;
s5, glass is thermally bent and tempered: heating the glass raw sheet to 700 ℃ by using heating equipment, softening, and pressing by using a male mold and a female mold;
s6, cleaning glass: removing foreign matters on the surface of the glass in a manual cleaning mode;
s7, glass lamination: vacuum clamping the glued piece, vacuum bagging, feeding into a kettle for firing, cooling and exhausting to obtain a glass finished product, and vacuum bagging, feeding into the kettle for firing comprises: taking out after the lamination is finished, wrapping a layer of baili cloth on the edge of the glass, wrapping a layer of felt cloth outside the baili cloth, fixing the baili cloth by using a high-temperature adhesive tape to prevent the baili cloth from falling off, then putting the laminated glass into a high-temperature-resistant vacuum bag with an air tap, pre-vacuumizing, putting the laminated glass into an autoclave after the pre-vacuumizing is finished, putting a gap of more than 100mm, and putting the laminated glass into the autoclave for firing; the cooling exhaust gas includes: and after firing, cooling the kettle, wherein the cooling rate is more than or equal to 3.3 ℃/min, and taking out the glass for trimming treatment after exhausting and cooling when the temperature in the kettle is less than 45 ℃ to obtain a glass finished product.
2. The method for processing glass with special-shaped curved surface according to claim 1, wherein the manual cleaning in the step S6 is to remove the foreign matters on the glass surface by bonding through a bonding roller.
3. The method for processing glass with special-shaped curved surface according to claim 1, wherein the manual cleaning in the step S6 is to erase foreign matters on the glass surface by using absolute ethyl alcohol.
4. The method for processing profiled curved glass according to claim 1, wherein the vacuum lamination bonding sheet in step S7 comprises: and (3) laminating the two pieces of glass and PVB film placed in the interlayer under the pressure of 10KG, stretch-bending the aluminum grid strips by using a stretch bender, vacuumizing the glass cavity by using a preformer device, and then filling helium into the glass cavity.
5. The method of claim 4, wherein the PVB film has a moisture content of less than 0.2%; the storage environment temperature of the PVB film is 22-28 ℃, and the humidity is less than 28%.
6. The method for manufacturing glass with special-shaped curved surface according to claim 1, wherein the pre-vacuumizing time is more than 30min, and the vacuum pressure is-0.03 Mpa/square meter.
7. The method for processing the special-shaped curved glass according to claim 1, wherein the temperature of the autoclave is 135-145 ℃, the pressure is 12.5-13 bar, and the time of the autoclave is 90-120min in the autoclave-in firing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211400268.5A CN115636574B (en) | 2022-11-09 | 2022-11-09 | Processing method of special-shaped curved surface glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211400268.5A CN115636574B (en) | 2022-11-09 | 2022-11-09 | Processing method of special-shaped curved surface glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115636574A CN115636574A (en) | 2023-01-24 |
| CN115636574B true CN115636574B (en) | 2023-12-05 |
Family
ID=84949265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211400268.5A Active CN115636574B (en) | 2022-11-09 | 2022-11-09 | Processing method of special-shaped curved surface glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115636574B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004145674A (en) * | 2002-10-25 | 2004-05-20 | Nippon Sheet Glass Co Ltd | Method for designing mold surface of press bending form block |
| CN1931561A (en) * | 2006-09-29 | 2007-03-21 | 连云港中复连众复合材料集团有限公司 | Making process of molded curved GRP lattice |
| WO2012028630A1 (en) * | 2010-09-03 | 2012-03-08 | Agc Glass Europe | Process for producing glazing shapes |
| KR101538120B1 (en) * | 2015-04-30 | 2015-07-29 | 대광특수유리공업(주) | Appatus and method for manufacturing curved glass |
| CN108437301A (en) * | 2018-06-12 | 2018-08-24 | 雅泰实业集团有限公司 | A kind of hyperbolic heterotype profiled sheet shaping mould and its hyperbolic moulding process |
| CN114163112A (en) * | 2021-12-25 | 2022-03-11 | 福州大学 | Digital design method of hot-press forming die for automobile rear windshield glass |
-
2022
- 2022-11-09 CN CN202211400268.5A patent/CN115636574B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004145674A (en) * | 2002-10-25 | 2004-05-20 | Nippon Sheet Glass Co Ltd | Method for designing mold surface of press bending form block |
| CN1931561A (en) * | 2006-09-29 | 2007-03-21 | 连云港中复连众复合材料集团有限公司 | Making process of molded curved GRP lattice |
| WO2012028630A1 (en) * | 2010-09-03 | 2012-03-08 | Agc Glass Europe | Process for producing glazing shapes |
| KR101538120B1 (en) * | 2015-04-30 | 2015-07-29 | 대광특수유리공업(주) | Appatus and method for manufacturing curved glass |
| CN108437301A (en) * | 2018-06-12 | 2018-08-24 | 雅泰实业集团有限公司 | A kind of hyperbolic heterotype profiled sheet shaping mould and its hyperbolic moulding process |
| CN114163112A (en) * | 2021-12-25 | 2022-03-11 | 福州大学 | Digital design method of hot-press forming die for automobile rear windshield glass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115636574A (en) | 2023-01-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104843976A (en) | 3D Curved ultrathin glass bending and forming device and manufacturing method | |
| CN104860514B (en) | A kind of production technology for curved glass hot bending | |
| CN110712405B (en) | Production method of heat reflection and Low-E toughened laminated glass and laminated glass | |
| CN101249739A (en) | Sandwich plate forming machine | |
| CN103274585A (en) | Processing method for rapidly tempering low-e glass | |
| CN110668711B (en) | Preparation process of ultra-thick interlayer Low-E glass and Low-E glass | |
| CN115636574B (en) | Processing method of special-shaped curved surface glass | |
| JPS62283834A (en) | Method of bending glass plate pair for manufacturing laminated glass | |
| CN105109179A (en) | Novel dry laminated glass production process | |
| CN114436513B (en) | Hot bending forming device for vehicle-mounted glass processing and processing method thereof | |
| CN109422445A (en) | A kind of processing method of glass bent products | |
| CN218619513U (en) | Thermal compounding device for external wall thermal insulation decorative board | |
| CN107322981A (en) | A kind of efficient die radiating device | |
| CN105016606A (en) | Manufacturing method for bright optical lens | |
| CN106738808A (en) | A kind of method for shaping and its shaping equipment for curved surface acrylic board | |
| CN113233792A (en) | Method for producing interlayer curved glass | |
| CN206465483U (en) | It is a kind of to enter mesh machine automatically | |
| US20160075597A1 (en) | Producing a disc from ceramic glass | |
| KR102171184B1 (en) | Method for manufacturing curved multi-layer glass | |
| CN110407449A (en) | The production technology of composite protective impact resistance glass | |
| CN217868653U (en) | Hyperbolic double-laminated coated hollow glass | |
| WO1996027560A1 (en) | The method for manufacturing tempered glass by static-pressure lifting | |
| CN102490292B (en) | Mould glass and manufacturing method thereof | |
| CN108083620A (en) | A kind of single servo shaping station structure of 3D hot-bending machines | |
| CN215620661U (en) | Laminated glass processing device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |