Background technology
Low radiation coated glass also claims Low-E glass, is on high-quality float glass surface, plates several layers low radiative materials and other metal compound film and forms.Low radiation coated glass has following characteristics: extremely low emissivity, high far infrared (thermal radiation) reflectivity can stop after the glass heat absorption heats up and outwards dispel the heat from face with forms of radiation, also can directly reflect far-infrared thermal radiation.Above two characteristics of LOW-E film match with the iris action of double glazing to the convection of heat conduction, have just constituted the extremely low LOW-E double glazing of U value.But its trap heat to a cold end transmission, stops that indoor heat rushes down to outdoor from an end of heat winter, indoor heat can be remained on indoorly, plays energy-conservation effect; And stop summer in the outdoor thermal radiation inlet chamber, play good heat-blocking action, be present optimal glazing material.
Low radiation coated glass mainly contains two kinds of production methods at present: one) online high temperature pyrolysis sedimentation: finish in float glass process for cooling process, liquid metal or metal-powder are directly injected on the hot glass surface, cooling along with glass, metallic diaphragm becomes the part of glass, and this rete is sturdy and durable.This plated film mode because of with glass processing procedure line, be commonly referred to as on-line coating, though but the low emissivity glass that this method is produced has the hot bending tempering, needn't under hollow state, use, can standing storage, but its thermal property, thermal insulation effect are poor, if want to improve its thermal property by increasing thickness, its transparency is with regard to non-constant.Two) off-line vacuum magnetic-control sputtering method: on glass with vacuum magnetic-control sputtering mode sputter multiple layer metal or pottery magnetic (oxidized metal) film at raw sheet, because of its not with glass processing procedure line, so be called off-line coated, the low radiation coated glass of this kind method explained hereafter, need one deck fine silver film as functional membrane, the fine silver film is between two layers of metal oxide film, metal oxide film provides protection to the fine silver film, and as the middle layer between the rete, the effect of adjusting coated glass color and antireflection increase transmissivity is arranged, it has following properties: 1) near the natural primary color of glass, (visible light wave range of 380nm~780nm) has high perspective rate, and reason glass does not produce serious anti-dazzle public hazards to the height reflection of visible light to wavelength; 2) visible light penetrates indoor manyly in the sunlight, and color nature, daylighting are good, reduce the use of indoor lamp, save the energy; 3) to infrared ray have higher reflectivity (wavelength 780nm~3000nm),, almost be total reflection especially to long wavelength's infrared rays (more than the wavelength 3000nm), a large amount of thermals source capable of blocking enter, and make indoorly to feel nice and cool, reach effect cool in summer and warm in winter; Being suitable for high-grade curtain buildings uses.
But because the consideration of security, above-mentioned low radiation coated glass often will carry out tempering to be handled, if carry out tempering behind the plated film again, because the effect of high temperature (more than 680 ℃), make coatings very easily oxidized and burn out, cause the function of low radiation coated glass to completely lose.
Summary of the invention
Technical problem to be solved by this invention provides a kind of radiation coated glass capable of being toughened, still can keep high performance nature behind the tempering.
The present invention also will provide a kind of production method of above-mentioned radiation coated glass capable of being toughened.
The technical scheme that technical solution problem of the present invention is adopted is: radiation coated glass capable of being toughened; comprise glass substrate; also comprise antireflection rete, metal separating film layer, antireflection rete according to this on glass substrate, block infrared rays rete, metal separating film layer and protect overall rete, described antireflection rete is Si
3N
4Or Si
3N
4+ TiO
2Described metal separating film layer is the NiCr alloy; Described antireflection rete is a ZAO ceramic target; The described infrared rays rete that blocks is metal A g; Described metal separating film layer is the NiCr alloy; The overall rete of described protection is Si
3N
4, SnO
2+ Si
3N
4Or TiO
2+ Si
3N
4
The production method of radiation coated glass capable of being toughened adopts vacuum magnetic-control sputtering mode plated film, and the vacuum magnetic-control sputtering coating equipment has 14 sputter target position and 6 gas barrier chambers at least.
The invention has the beneficial effects as follows:, can carry out tempering or thermal treatment, and after carrying out tempering or thermal treatment, still can keep high performance nature because each the rete arrangement on the radiation coated glass capable of being toughened of the present invention is reasonable; Have and two the same heat-insulating and energy-saving performances of silver-colored LOW-E; Product can store 4-6 month can oxidation; Have the nature color, have high permeability, can not produce serious anti-dazzle public hazards at visible light wave range.Production method of the present invention has output height, advantage that cost is low.
Embodiment
Fig. 1 is a film layer structure synoptic diagram of the present invention, the acting as of each sputtered layer:
Antireflection rete 1 is Si
3N
4Or Si
3N
4+ TiO
2, can reduce reflectivity; Adjust the glass surface color; Na that substrate itself discharges when stopping glass tempering and O
2Corrode the Ag rete, cause the oxidized and loss of function of Ag layer.The thickness of antireflection rete 1 is about 15~30nm.
Metal separating film layer 2 and 5 is the NiCr alloy, can protect the Ag layer, avoids the Ag layer oxidized, prolongs the storage time.Metal separating film layer 2 and 5 thickness are about 1~5nm.
Antireflection rete 3 is a ZAO ceramic target, can adjust the rete color; Improve visible light transmittance.The thickness of antireflection rete 3 is about 5~10nm.
Block infrared rays rete 4 and be metal A g, can reduce radiant ratio; Increase heat insulation or heat preservation effect.The thickness that blocks infrared rays rete 4 is about 8~14nm.
Protect overall rete 6 to be Si
3N
4, SnO
2+ Si
3N
4Or TiO
2+ Si
3N
4, can adjust the color of plated film face; Improve the ability of overall rete resistance to chemical attack and mechanical friction; Protect whole film layer structure; Airborne chemical substance or O when stopping tempering
2Corrode the Ag layer; Reduce oxidation.Protect the thickness of overall rete 6 to be about 35~60nm.
The present invention adopts the production of vacuum magnetic-control sputtering coating equipment, 14 sputter target position and 6 gas barrier chambers will be arranged at least, antireflection rete Si
3N
4Or Si
3N
4+ TiO
2And the overall rete Si of protection
3N
4Or SnO
2+ Si
3N
4Or TiO
2+ Si
3N
4Adopt state-of-the-art double cathode rotary target (C-MAG) sputter, but have superpower sputter and the not starting the arc, the advantage of dust not, can significantly improve turnout.The antireflection rete is a ZAO ceramic target, can be placed on same gas barrier chamber with NiCr alloy or Ag, only adds a little O in the production
2, Ar and O
2Weight percent content be respectively: 85-95% and 5-15%, can not pollute the Ag layer, in the framework arrangement, can reduce by a gas barrier chamber, thereby reduce the cost of investment of equipment.
Visible light transmissivity is 70~84% behind the low radiation coated glass tempering of the present invention; Radiant ratio ε is 0.04~0.09.
Embodiment 1:
The antireflection rete adopts Si
3N
4Protect overall rete to adopt Si
3N
4The thickness of antireflection rete 1 is 21nm, and the thickness of metal separating film layer 2 is 2nm, and the thickness of metal separating film layer 5 is 2nm, and the thickness of antireflection rete 3 is 7nm, and the thickness that blocks infrared rays rete 4 is 12nm, and the thickness of protecting overall rete 6 is 50nm.
In the production, the target of antireflection rete 3 is placed on same gas barrier chamber, Ar and O with the target that blocks infrared rays rete 4
2Weight percent content be respectively: 95% and 5%.
Following table is present embodiment and different low radiation coated glass performance data tables.
The name of an article | Visible light transmissivity % | Ultraviolet ray transmissivity % | Solar thermal energy | The U value | Sheltering coefficient | Radiant ratio |
Reflectivity % | Specific absorption % | Direct transmitance % | Total transmitance % | Total heat transit dose W/m
2 | Night in winter W/m
2K
| Summer W/m
2K
|
Absorb | Radiation is penetrated again | Radiation enters again |
(DLE+CL) (6+12A.S.+6) | 64 | 10 | 17 | 45 | 38 | 7 | 38 | 45 | 343 | 1.69 | 1.78 | 0.52 | 0.042 |
IL (CL-PLE+CL) is (6+12A.S+6) before the tempering | 65 | 10 | 19 | 38 | 31 | 7 | 39 | 46 | 348 | 1.67 | 1.75 | 0.53 | 0.053 |
IL (CL-PLE+CL) 6+12A.S+6) behind the tempering | 67 | 13 | 17 | 36 | 28 | 8 | 39 | 47 | 354 | 1.66 | 1.73 | 0.54 | 0.05 |
IL(CL-TLE+CL) (6+12A.S.+6) | 74 | 12 | 20 | 35 | 27 | 8 | 45 | 53 | 398 | 1.68 | 1.75 | 0.61 | 0.06 |
IL(CL-SLE+CL) (6+12A.S.+6) | 72 | 17 | 13 | 39 | 31 | 8 | 48 | 56 | 422 | 1.77 | 1.89 | 0.65 | 0.08 |
IL(K Glass+CL) (6+12A.S.+6) | 73 | --- | 13 | 33 | 19 | 14 | 54 | 68 | 506 | 2.10 | 0.78 | 0.15 |
Glaverbel IL(Sunergy CL+CL) (6+12A.S.+6) | 59 | 26 | 11 | 48 | 38 | 10 | 41 | 51 | 388 | 2.15 | 2.46 | 0.59 | 0.31 |
In the last table: SLE is single silver low radiation coated glass;
TLE is a titanium base list silver low radiation coated glass;
DLE is two silver low radiation coated glasses;
K.Glass and Sunergy are online low radiation coated glass;
PLE is a radiation coated glass capable of being toughened of the present invention.
In building energy conservation, heat transfer coefficient (U value) is low more, illustrate that thermal and insulating performance is good more, as can be seen from the above table: (1) radiation coated glass capable of being toughened of the present invention (PLE) is close with the U value of two silver low radiation glass (DLE) when synthetic hollow is used, can reach the heat insulating effect of DLE, but the U value than other single silver-colored LOW-E is lower, and therefore radiation coated glass capable of being toughened of the present invention is very excellent on the performance of building energy conservation; (2) but radiation coated glass capable of being toughened of the present invention compare with the K.GLASS of same tempering, its U value differs 0.4, therefore the heat insulating effect of radiation coated glass capable of being toughened of the present invention in building energy conservation is more excellent than K.GLASS.
Fig. 2 is a present embodiment and the optical transmission spectra figure of different low emissivity glasses.Among the figure, SLE is single silver low radiation coated glass; TLE is a titanium base list silver low radiation coated glass; DLE is two silver low radiation coated glasses; GLAVERBEL-SUNERGY is online low radiation coated glass; PLE is a radiation coated glass capable of being toughened of the present invention.
As can be seen from Figure 2: radiation coated glass capable of being toughened of the present invention has very high transmittance in visible light (380-780nm) scope, in short wavelength infrared line (780-3000nm) scope, the very high rate that blocks is arranged, therefore radiation coated glass capable of being toughened of the present invention can make buildings reach effect cool in summer and warm in winter, is a kind of high performance heat-insulating and energy-saving glass.
Embodiment 2:
The antireflection rete adopts Si
3N
4+ TiO
2Protect overall rete to adopt SnO
2+ Si
3N
4The thickness of antireflection rete 1 is 30nm, and the thickness of metal separating film layer 2 is 1.5nm, and the thickness of metal separating film layer 5 is 1.5nm, and the thickness of antireflection rete 3 is 5nm, and the thickness that blocks infrared rays rete 4 is 8nm, and the thickness of protecting overall rete 6 is 35nm.
In the production, the target of antireflection rete 3 is placed on same gas barrier chamber, Ar and O with the target that blocks infrared rays rete 4
2Weight percent content be respectively: 85% and 15%.
Following table is the performance data table of present embodiment.
The name of an article | Visible light transmissivity % | Ultraviolet ray transmissivity % | Solar thermal energy | The U value | Sheltering coefficient | Radiant ratio |
Reflectivity % | Specific absorption % | Direct transmitance % | Total transmitance % | Total heat transit dose W/m
2 | Night in winter W/m
2K
| Summer W/m
2K
|
Absorb | Radiation is penetrated again | Radiation enters again |
IL (CL-PLE+CL) is (6+12A.S+6) before the tempering | 72 | 17 | 13 | 39 | 30 | 9 | 48 | 57 | 431 | 1.88 | 1.89 | 0.66 | 0.085 |
IL (CL-PLE+CL) 6+12A.S+6) behind the tempering | 73 | 16 | 12 | 38 | 26 | 10 | 48 | 58 | 440 | 1.87 | 1.88 | 0.67 | 0.082 |
Embodiment 3:
The antireflection rete adopts Si
3N
4Protect overall rete to adopt TiO
2+ Si
3N
4The thickness of antireflection rete 1 is 15nm, and the thickness of metal separating film layer 2 is 5nm, and the thickness of metal separating film layer 5 is 5nm, and the thickness of antireflection rete 3 is 10nm, and the thickness that blocks infrared rays rete 4 is 14nm, and the thickness of protecting overall rete 6 is 60nm.
In the production, the target of antireflection rete 3 is placed on same gas barrier chamber, Ar and O with the target that blocks infrared rays rete 4
2Weight percent content be respectively: 90% and 10%.
Following table is the performance data table of present embodiment.
The name of an article | Visible light transmissivity % | Ultraviolet ray transmissivity % | Solar thermal energy | The U value | Sheltering coefficient | Radiant ratio |
Reflectivity % | Specific absorption % | Direct transmitance % | Total transmitance % | Total heat transit dose W/m
2 | Night in winter W/m
2K
| Summer W/m
2K
|
Absorb | Radiation is penetrated again | Radiation enters again |
IL (CL-PLE+CL) is (6+12A.S+6) before the tempering | 60 | 17 | 23 | 32 | 33 | 8 | 38 | 44 | 347 | 1.64 | 1.70 | 0.50 | 0.045 |
IL (CL-PLE+CL) 6+12A.S+6) behind the tempering | 61 | 19 | 21 | 30 | 31 | 9 | 38 | 46 | 350 | 1.63 | 1.72 | 0.52 | 0.048 |