CN106242259B - A kind of preparation process of the curved laminated glass of Low-e - Google Patents
A kind of preparation process of the curved laminated glass of Low-e Download PDFInfo
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- CN106242259B CN106242259B CN201610637602.7A CN201610637602A CN106242259B CN 106242259 B CN106242259 B CN 106242259B CN 201610637602 A CN201610637602 A CN 201610637602A CN 106242259 B CN106242259 B CN 106242259B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
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- 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
- C03B23/025—Re-forming glass sheets by bending by gravity
- C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
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Abstract
The invention discloses a kind of preparation processes of the curved laminated glass of Low e, include the following steps：A, then Low e glass substrates carry out edging by synchronous belt using horizontal double straight flange machines, are cleaned subsequently into cleaning machine；B, above-mentioned cleaned glass horizontal is placed on roller-way, is sent into convection tempering furnace and heated using one-part form by roller-way；C, glass after heat treatment, which is come out of the stove, is sent into curved air grid, is first bent by dead weight with the bending of rollgang and air grid；D, the two panels through over cleaning or the curved steel glass of multi-disc carry out conjunction piece in dustless close close out sheet room；E, the bent plate glass in step d is slowly removed into air by reheating by the precompressed of bent plate glass rolling machine again；F, the bent plate glass in step e is placed and heating pressurization removal residual air is carried out in still kettle.Simple for process, the tensile strength produced, bending strength, the excellent in cushion effect and good appearance of above-mentioned curved steel glass, glass transparent.
Description
Technical field
The present invention relates to a kind of manufacture craft of tempered glass more particularly to a kind of preparation works of the curved laminated glass of Low-e
Skill.
Background technology
Doubling glass is laminated glass, is that two panels has either pressed from both sides one layer or multilayer organic polymer between divided glass
Intermediate coat after special high temperature preheating (or vacuumizing) and high-temperature high-pressure craft processing, makes glass and intermediate coat forever
The compound glass product being integrated is bonded long.Common laminated glass intermediate coat has PVB, SGP, EVA, PU etc..Laminated glass is
A kind of safety glass has good impact resistance, penetration resistance, safety, noise reduction, anti-uv etc..With the epoch
Development, laminated glass is widely used in building doors and windows, lighting ceiling, skylight, furred ceiling, large area glass with its unique property
Nearly all occasion using glass such as glass wall, glass furniture, show window, aquarium.
Curved steel glass has the security performance and high intensity as tempered glass, it is often more important that it can meet the modern times and build
Build requirements at the higher level of the designer to works.Its is smooth streamlined, realizes complete to the glass curtain wall of cambered surface moulding from flat curtain
Beautiful transition, makes that glass-wall building is more attractive, more round and smooth smooth, naturally good associative perception.Curved tempered glass is in conduct
Indoor arc partition, interior decoration make work domestic environment more peculiar.
Disclose the manufacture craft of a variety of curved tempered glass in the prior art, typical process flow for upper piece, heating, heat
Roll forming, chilling tempering, cooling and bottom sheet.Glass is cooled down using air cooling way in traditional tempered glass technical process, is needed
There is provided in short time bending strength that the air of big flow, very power consumption, and the mode of production can not effectively improve glass,
Impact strength, exterior quality etc..Chinese patent publication date is 2015.1.21, and publication number is that 104291666A discloses one kind
It can be made that bending strength, tensile strength, impact strength are all higher, and exterior quality is excellent, the curved tempering glass of time-saving energy-saving
Glass production technology.In order to further save energy consumption, it is all preferable to produce bending strength higher, tensile strength, impact strength
Curved steel glass, and its curved steel glass system is made for the curved steel glass of interlayer.We have done the prior art and have further improved.
Invention content
It is an object of the invention to overcome deficiency of the prior art, a kind of excellent exterior quality is provided, bending strength, is resisted
The preparation process of the curved laminated glass of all higher Low-e of Compressive Strength, impact strength.
In order to solve the above technical problems, the technical scheme is that：
A kind of preparation process of the curved laminated glass of Low-e, the production technology include the following steps：
A, glass will be cut big plate substrate, and will become Low-e glass substrates, then Low-e glass substrates use
Horizontal double straight flange machines carry out edging by synchronous belt, are cleaned subsequently into cleaning machine；
B, above-mentioned cleaned glass horizontal is placed on roller-way, is sent into convection tempering furnace and is heated by roller-way
Processing makes glass be heated using one-part form close to softening point, and the thickness range of glass is 5mm ~ 12mm, heating temperature
It is upper temp between 675 DEG C -690 DEG C, for temperature of lower range between 675 DEG C -700 DEG C, heating time is 45s ~ 65s,
Early period, the sway velocity of main stove was：60~120/s；
C, the glass after above-mentioned heating is come out of the stove and is sent into curved air grid, first by dead weight with the bending of rollgang and air grid and
Bending, then by the upper and lower air grid in curved air grid under the wind pressure of 1.0kpa-3.0kpa, quenching 80s-120s to glass
250 DEG C -300 DEG C of surface, then 15 DEG C of -30 DEG C of water-cooled process to room temperature are to get curved tempered glass finished product；
D, the curved tempered glass finished product in step c is cleaned again, the curved tempering glass of the two panels or multi-disc through over cleaning
Glass carries out closing piece making in dustless close close out sheet room；PVB film conducts are used between the two panels or multi-disc curved tempered glass
Intermediate medium, the thickness range of laminated glass is 40mm ~ 60mm, controls 20 DEG C ± 5 DEG C in temperature, relative humidity control 20%-
40%, area's temperature range be 160 DEG C ~ 170 DEG C, two area's temperature ranges be 200 DEG C ~ 220 DEG C, three area's temperature ranges for 220 DEG C ~
240 DEG C, transmission speed is 0.5m ~ 1.5m/min, and still kettle is heated using heating tube, and medium is air compressed gas, and balance is hot
It is 135 ± 5 DEG C to spend, and balances pressure 12 ± 0.5 ㎏, equilibration time 35-45min, and the conjunction piece of the curved laminated glass of Low-e is made；
E, the curved laminated glass of Low-e in step d is entered into roll squeezer bubble removing again, specifically laminated glass passes through sliding rail
It is heated into bent plate glass rolling machine first interval heater box, heating temperature is 50 DEG C -60 DEG C, then is entered by sliding rail
It is heated to second interval heater box, heating temperature is 100 DEG C -200 DEG C, melts PVC glue；
F, the curved laminated glass of Low-e through step e is positioned in still kettle on trammer dedicated, made among every sheet glass
15 ± 5mm of even interval enters still kettle, and specifically laminated glass enters still kettle, 6 stages of operational process point by sliding rail;
First stage：Closing still kettle door is simultaneously closed, and heating temperature is set as 80 ± 5 DEG C；Second stage：Heating temperature is set as 100
± 5 DEG C, moulding pressure is set as 8 ± 0.5 ㎏ and is kept for 20 minutes；Third and fourth stage：Heating temperature is set as 135 ± 5 DEG C, adds
Pressure pressure is set as 12 ± 0.5 ㎏ and is kept for 45 ~ 60 minutes；5th stage：Cool down pressurize, and heating temperature is reduced to 35 ± 5 DEG C, pressure
Power is set as 12 ± 0.5 ㎏；6th stage：Decrease temperature and pressure, heating temperature are reduced to 35 ± 5 DEG C, and pressure is reduced to 0 ㎏；It releases
Still kettle kettle door obturator opens kettle door, and it is all higher that appearance looks elegant, tensile strength height, bending strength, impact strength is made
The curved laminated glass of Low-e.
Further, the water conductivity that water quality uses in a edging operations is less than 5us/cm deionized waters.
Further, the heating temperature of the 3rd interval heater box in the step e is 50 DEG C -70 DEG C.
Further, the melting temperature of the PVB glue is 130 DEG C ~ 140 DEG C.
Further, the arc length radius of the curved tempered glass in the step c is more than 300mm, and radius is more than 700mm,
Sagitta is less than 200mm.
Beneficial effects of the present invention：The traditional two-period form heating of annealing furnace has been transformed into one-part form heating by this kind of technique,
Heating and temperature control makes glass fully be softened between 675 DEG C -690 DEG C, and the Low-e glass after softening is re-fed into curved
Air grid, the obtained curved steel glass bending radiuses of Low-e are big, and tensile strength, bending strength, impact strength all correspondingly carry
It is high.And traditional technique can not realize the making of the curved laminated glass of Low-e, the present invention is closing the progress of piece room using suitable technique
Close piece, then bubble removing carried out through roll squeezer, realize the making of the curved laminated glass of Low-e, and the surface strength produced it is high and
Good appearance, glass transparent.
Specific embodiment
The invention is further illustrated by the following examples, but the present invention is not limited solely to following embodiment.
Embodiment one
A kind of preparation process of the curved laminated glass of Low-e, the production technology include the following steps：
A, glass will be cut big plate substrate, and will become Low-e glass substrates, then Low-e glass substrates use
Horizontal double straight flange machines carry out edging by synchronous belt, are cleaned subsequently into cleaning machine, the water that water quality uses in edging operation
Conductivity is less than 5us/cm deionized waters；
B, above-mentioned cleaned glass horizontal is placed on roller-way, is sent into convection tempering furnace and is heated by roller-way
Processing makes glass be heated close to softening point using one-part form, the thickness range of glass is 5mm ~ 6mm, and heating temperature is
Upper temp is between 685 DEG C -690 DEG C, and temperature of lower range is between 695 DEG C -700 DEG C, heating time 45s, early period master
The sway velocity of stove is：80/s；
C, the glass after above-mentioned heating is come out of the stove and is sent into curved air grid, first by dead weight with the bending of rollgang and air grid and
Bending, then the wind pressure for passing through the upper air grid in curved air grid is 2.0kpa, lower air grid is under the wind pressure of 2.0kpa, quenching 90s
To 250 DEG C -300 DEG C of glass surface, then 25 DEG C of water-cooled process to room temperature are to get curved tempered glass finished product, the arc of curved steel glass
Major radius is 320mm；
D, the curved steel glass finished-product in step c is cleaned again, the curved steel glass of the two panels or multi-disc through over cleaning exists
Dustless close close out sheet room carries out closing piece making；Using PVB films as intermediate between the two panels or multi-disc curved tempered glass
Medium, the softening temperature of PVB glue are that the thickness range of 120 DEG C of laminated glass is 50mm, control 15 DEG C in temperature, relative humidity control
System 30%, area's temperature range are 165 DEG C, and two area's temperature ranges are 210 DEG C, and three area's temperature ranges are 200 DEG C, and transmission speed is
0.5m/min, still kettle are heated using heating tube, and medium is air compressed gas, and balance temperature is 135 DEG C, balances pressure 12
The conjunction piece of the curved laminated glass of Low-e is made in ㎏, equilibration time 45min；
E, the curved laminated glass of Low-e in step d is entered into roll squeezer bubble removing again, specifically laminated glass passes through sliding rail
It is heated into bent plate glass rolling machine first interval heater box, heating temperature is 50 DEG C, then enters the by sliding rail
Two section heater boxes are heated, and heating temperature is 100 DEG C, melts PVC glue；
F, the curved laminated glass of Low-e through step e is positioned in still kettle on trammer dedicated, made among every sheet glass
15 ± 5mm of even interval enters still kettle, and specifically laminated glass enters still kettle, 6 stages of operational process point by sliding rail;
First stage：Closing still kettle door is simultaneously closed, and heating temperature is set as 80 ± 5 DEG C；Second stage：Heating temperature is set as 100
± 5 DEG C, moulding pressure is set as 8 ± 0.5 ㎏ and is kept for 20 minutes；Third and fourth stage：Heating temperature is set as 135 ± 5 DEG C, adds
Pressure pressure is set as 12 ± 0.5 ㎏ and is kept for 45 ~ 60 minutes；5th stage：Cool down pressurize, and heating temperature is reduced to 35 ± 5 DEG C, pressure
Power is set as 12 ± 0.5 ㎏；6th stage：Decrease temperature and pressure, heating temperature are reduced to 35 ± 5 DEG C, and pressure is reduced to 0 ㎏；It releases
Still kettle kettle door obturator opens kettle door, and it is all higher that appearance looks elegant, tensile strength height, bending strength, impact strength is made
The curved laminated glass of Low-e.
Embodiment two
A kind of preparation process of the curved laminated glass of Low-e, the production technology include the following steps：
A, glass will be cut big plate substrate, and will become Low-e glass substrates, then Low-e glass substrates use
Horizontal double straight flange machines carry out edging by synchronous belt, are cleaned subsequently into cleaning machine, the water that water quality uses in edging operation
Conductivity is less than 5us/cm deionized waters；
B, above-mentioned cleaned glass horizontal is placed on roller-way, is sent into convection tempering furnace and is heated by roller-way
Processing makes glass be heated using one-part form close to softening point, and the thickness range of glass is 8mm ~ 12mm, heating temperature
It is upper temp between 675 DEG C -685 DEG C, temperature of lower range is between 675 DEG C -685 DEG C, heating time 50s, early period
The sway velocity of main stove is：100/s；
C, the glass after above-mentioned heating is come out of the stove and is sent into curved air grid, first by dead weight with the bending of rollgang and air grid and
Bending, then the wind pressure for passing through the upper air grid in curved air grid is 1.5.0kpa, lower air grid is under the wind pressure of 3.0kpa, quenching
100s is to 250 DEG C -300 DEG C of glass surface, and then 30 DEG C of water-cooled process to room temperature are to get curved tempered glass finished product, curved steel glass
Arc length radius be 350mm；
D, the curved steel glass finished-product in step c is cleaned again, the curved steel glass of the two panels or multi-disc through over cleaning exists
Dustless close close out sheet room carries out closing piece making；Using PVB films as intermediate between the two panels or multi-disc curved tempered glass
Medium, the softening temperature of PVB glue are that the thickness range of 135 DEG C of laminated glass is 65mm, control 20 DEG C in temperature, relative humidity control
System 50%, area's temperature range are 160 DEG C, and two area's temperature ranges are 200 DEG C, and three area's temperature ranges are 100 DEG C, and transmission speed is
1.0m/min, still kettle are heated using heating tube, and medium is air compressed gas, and balance temperature is 130 DEG C, balances pressure 12.5
The conjunction piece of the curved laminated glass of Low-e is made in ㎏, equilibration time 40min；
E, the curved laminated glass of Low-e in step d is entered into roll squeezer bubble removing again, specifically laminated glass passes through sliding rail
Heated into bent plate glass rolling machine first interval heater box, heating temperature for DEG C, then enter second by sliding rail
Section heater box is heated, and heating temperature is 1200 DEG C, melts PVC glue；
F, the curved laminated glass of Low-e through step e is positioned in still kettle on trammer dedicated, made among every sheet glass
15 ± 5mm of even interval enters still kettle, and specifically laminated glass enters still kettle, 6 stages of operational process point by sliding rail;
First stage：Closing still kettle door is simultaneously closed, and heating temperature is set as 80 ± 5 DEG C；Second stage：Heating temperature is set as 100
± 5 DEG C, moulding pressure is set as 8 ± 0.5 ㎏ and is kept for 20 minutes；Third and fourth stage：Heating temperature is set as 135 ± 5 DEG C, adds
Pressure pressure is set as 12 ± 0.5 ㎏ and is kept for 45 ~ 60 minutes；5th stage：Cool down pressurize, and heating temperature is reduced to 35 ± 5 DEG C, pressure
Power is set as 12 ± 0.5 ㎏；6th stage：Decrease temperature and pressure, heating temperature are reduced to 35 ± 5 DEG C, and pressure is reduced to 0 ㎏；It releases
Still kettle kettle door obturator opens kettle door, and it is all higher that appearance looks elegant, tensile strength height, bending strength, impact strength is made
The curved laminated glass of Low-e.
The traditional two-period form heating of annealing furnace has been transformed into one-part form heating by the invented technology, and heating and temperature control exists
Between 675 DEG C -690 DEG C, glass is made fully to be softened, the glass after softening is re-fed into curved air grid, obtained curved steel glass
Its tensile strength, bending strength, impact strength all correspondingly improve.And traditional technique can not realize curved steel laminated glass
It making, the present invention carries out conjunction piece in conjunction piece room using suitable technique, then through roll squeezer progress bubble removing, the making realized,
And the Low-e angle coupling layer glass surfaces intensity height and good appearance, glass produced are penetrating.
Listed above is only specific embodiments of the present invention.It, can be with it is clear that the invention is not restricted to above embodiment
There are many deform.All changes that those of ordinary skill in the art directly can export or associate from present disclosure
Shape is considered as protection scope of the present invention.
Claims (5)
1. a kind of preparation process of the curved laminated glass of Low-e, which is characterized in that the production technology includes the following steps：
A, glass will be cut big plate substrate, and will become Low-e glass substrates, by Low-e glass substrates, then using horizontal
Double straight flange machines carry out edging by synchronous belt, are cleaned subsequently into cleaning machine；
B, above-mentioned cleaned glass horizontal is placed on roller-way, is sent into convection tempering furnace and is carried out at heating by roller-way
Reason makes glass be heated close to softening point using one-part form, the thickness range of glass is 5mm~12mm, and heating temperature is
Ranging from 675 DEG C -690 DEG C of upper temp, ranging from 675 DEG C -700 DEG C of temperature of lower, heating time is 45s~65s/mm, preceding
The phase sway velocity of main stove is：60mm~120mm/s；
C, the glass after above-mentioned heating is come out of the stove and is sent into curved air grid, it is first curved with the bending of rollgang and air grid by conducting oneself with dignity
Song, then by the upper and lower air grid in curved air grid under the wind pressure of 1.0kPa-3.0kPa, quenching 80s-120s to glass table
250 DEG C -300 DEG C of face, it is then air-cooled to handle to room temperature to get curved tempered glass finished product；
D, the curved tempered glass finished product in step c is cleaned again, the curved steel glass of the two panels or multi-disc through over cleaning is in nothing
The close close out sheet room of dirt carries out conjunction piece；Using PVB films as intermediate medium between the two panels or multi-disc curved tempered glass,
Temperature controls 20 DEG C ± 5 DEG C, and relative humidity control 20%-40% closes piece interior and carries out conjunction piece；Preformer is infrared using top and the bottom
Heating, the thickness range of laminated glass is 8mm~60mm, and area's temperature range is 160 DEG C~170 DEG C, and two area's temperature ranges are
200 DEG C~220 DEG C, three area's temperature ranges are 220 DEG C~240 DEG C, and transmission speed is 0.5m~1.5m/min, and it is curved that Low-e is made
The conjunction piece of laminated glass；
E, the curved laminated glass of Low-e in step d is entered into preformer using top and the bottom infrared heating, the thickness of laminated glass again
Ranging from 8mm~60mm, area's temperature range are 160 DEG C~170 DEG C, and two area's temperature ranges are 200 DEG C~220 DEG C, three area's temperature
Ranging from 220 DEG C~240 DEG C of degree, transmission speed are 0.5m~1.5m/min, and roll-in height is less than the 2- for closing sheet glass overall thickness
The conjunction piece of the curved laminated glass of Low-e is made in 5mm；
F, the curved laminated glass of Low-e through step e is positioned in still kettle on trammer dedicated, between making every sheet glass centre uniformly
Enter still kettle every 15 ± 5mm, specifically laminated glass enters still kettle by sliding rail, and still kettle is heated using heating tube, is situated between
Matter is air compressed gas, and balance temperature is 135 ± 5 DEG C, balances pressure 12 ± 0.5 ㎏, equilibration time 45-60min, operation
6 stages of process point；First stage：Closing still kettle door is simultaneously closed, and heating temperature is set as 80 ± 5 DEG C；Second stage：Heating
Temperature is set as 100 ± 5 DEG C, and moulding pressure is set as 8 ± 0.5 ㎏ and is kept for 20 minutes；Third and fourth stage：Heating temperature is set
It it is 135 ± 5 DEG C, moulding pressure is set as 12 ± 0.5 ㎏ and is kept for 45~60 minutes；5th stage：Cool down pressurize, heating temperature drop
Most 35 ± 5 DEG C, pressure is set as 12 ± 0.5 ㎏；6th stage：Decrease temperature and pressure, heating temperature are reduced to 35 ± 5 DEG C, pressure
It is reduced to 0 ㎏；It releases still kettle kettle door obturator and opens kettle door, the curved laminated glass of Low-e of appearance looks elegant is made.
2. the preparation process of the curved laminated glass of a kind of Low-e according to claim 1, which is characterized in that in the step a
Edging operation in water quality use water conductivity be less than 5 μ S/cm deionized waters.
3. the preparation process of the curved laminated glass of a kind of Low-e according to claim 1, which is characterized in that in the step e
3rd interval heater box heating temperature for 220 DEG C -240 DEG C, transmission speed is 0.5m~1.5m/min, and roll-in height is less than
Close the 2-5mm of sheet glass overall thickness.
A kind of 4. preparation process of the curved laminated glass of Low-e according to claim 1, which is characterized in that the PVB films
Melting temperature be 130 DEG C -140 DEG C.
A kind of 5. preparation process of the curved laminated glass of Low-e according to claim 1, which is characterized in that the step c
In curved tempered glass arc length be more than 300mm, radius be more than 700mm, sagitta be less than 200mm.
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| CN108081710B (en) * | 2017-12-11 | 2020-10-20 | 东莞南玻工程玻璃有限公司 | Preparation process of coated laminated glass |
| CN109572109B (en) * | 2018-12-28 | 2021-10-22 | 江阴沐祥节能装饰工程有限公司 | Laminated glass and preparation process thereof |
| CN109591399A (en) * | 2018-12-28 | 2019-04-09 | 江阴沐祥节能装饰工程有限公司 | A kind of laminated glass and preparation method thereof |
| CN111003931B (en) * | 2019-12-31 | 2021-12-07 | 吴江南玻华东工程玻璃有限公司 | Production method of bent tempered glass with Low-E surface capable of contacting roller way of tempering furnace |
| CN111892284A (en) * | 2020-06-16 | 2020-11-06 | 扬州恒泰玻璃有限公司 | Arc-shaped fireproof tempered glass treatment process |
| CN113233792A (en) * | 2021-03-26 | 2021-08-10 | 吴江南玻华东工程玻璃有限公司 | Method for producing interlayer curved glass |
| CN113059886B (en) * | 2021-04-16 | 2022-03-25 | 浙江南晶玻璃科技股份有限公司 | Preparation process of tempered heat-reflection coated laminated glass |
| CN114956528B (en) * | 2022-06-21 | 2023-09-12 | 湖南旗滨节能玻璃有限公司 | Method for preparing bent steel Low-E glass and method for preparing bent steel composite glass |
| CN115353297B (en) * | 2022-09-19 | 2023-09-22 | 安徽哥瑞光学实业有限公司 | Manufacturing method of curved surface explosion-proof glass |
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| CN104276769A (en) * | 2014-09-03 | 2015-01-14 | 宁波市合鑫玻璃科技有限公司 | Production process of Low-E (Low-Emissivity) laminated tempered glass by dry method |
| CN104291712A (en) * | 2014-09-03 | 2015-01-21 | 宁波市合鑫玻璃科技有限公司 | Production technology for dry process bent tempered laminated glass |
| CN105130212A (en) * | 2015-07-17 | 2015-12-09 | 浙江中哲玻璃有限公司 | Off-line double-silver Low-e sandwiched hollow glass processing technology |
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