CN201864664U

CN201864664U - Double-silver low-e glass

Info

Publication number: CN201864664U
Application number: CN2010205798015U
Authority: CN
Inventors: 杨永华; 孙叠文; 屈生永
Original assignee: GRAND ENGINEERING GLASS Co Ltd
Current assignee: GRAND ENGINEERING GLASS Co Ltd
Priority date: 2010-10-22
Filing date: 2010-10-22
Publication date: 2011-06-15
Anticipated expiration: 2020-10-22

Abstract

The utility model discloses double-silver low-e glass, which comprises a glass substrate. Nine coating layers are sequentially compounded on a composite surface of the glass substrate from inside to outside adjacently. The double-silver low-e glass is characterized in that the first coating layer, namely the innermost layer, is a TiO2 (titanium dioxide) layer, the second layer is a ZnO (zinc oxide )layer, the third layer is an Ag layer, the fourth layer is a NiCr (nickel-chromium) layer, the fifth layer is a TiO2 layer, the sixth layer is a ZnO layer, the seventh layer is an Ag layer, the eighth layer is a NiCr layer, and the ninth layer, namely the outermost layer, is a Si3N4 (silicon nitrode) layer. The double-silver low-e glass is high in transmittance and low in emissivity.

Description

A kind of two silver-colored LOW-E glass

[technical field]

The utility model relates to a kind of coated glass, especially a kind of two silver-colored LOW-E glass.

[background technology]

Glass is the indispensable integral part of buildings and automobile, is bearing many important function, comprises the outward appearance of beautifying constructure and automobile, daylighting and give the indoor open visual field of bringing.But simple glass sunlight transmitance is general, and infrared reflectance is very low, and most of sunlight sees through glass and in the inlet chamber, thus heating object, and the energy of these indoor objects can lose by glass with forms of radiation.

For this reason, the inventor has designed this patent, to overcome the problems referred to above.

[utility model content]

The utility model has overcome the deficiency of above-mentioned technology, and a kind of transmitance height, two silver-colored LOW-E glass that radiant ratio is low are provided.

For achieving the above object, the utility model has adopted following technical proposal:

A kind of two silver-colored LOW-E glass includes glass substrate, is adjacent to successively from inside to outside be compounded with nine retes on the composite surface of glass substrate, and it is characterized in that: wherein first rete is that innermost layer is TiO ₂Layer, the second layer is the ZnO layer, and the 3rd layer is the Ag layer, and the 4th layer is the NiCr layer, and layer 5 is TiO ₂Layer, layer 6 is the ZnO layer, and layer 7 is the Ag layer, and the 8th layer is the NiCr layer, and the 9th layer is that outermost layer is Si ₃N ₄Layer;

Described the first layer TiO ₂The thickness of layer is 25～30nm; The thickness of described second layer ZnO layer is 5～8nm; The thickness of described the 3rd layer of Ag layer is 6～10nm; The thickness of described the 4th layer of NiCr layer is 4～7nm; Described layer 5 TiO ₂The thickness of layer is 17～22nm; The thickness of described layer 6 ZnO layer is 7～12nm; The thickness of described layer 7 Ag layer is 8～12nm; The thickness of described the 8th layer of NiCr layer is 4～7nm; Described the 9th layer of Si ₃N ₄The thickness of layer is 34～43nm.

Compared with prior art, the utility model has following advantage:

1, the coatings of this glass has the high characteristic that reaches the high reflection of centering far infrared rays that sees through of visible light.In winter, the thermal radiation that it distributes room heater and indoor object can be as a hot mirror, and most reflected backs are indoor, guarantees that indoor heat does not does not scatter and disappear to outdoor.In summer, it can stop in the thermal radiation inlet chamber that outdoor ground, buildings send.Make building window with Low-e glass, can reduce the indoor heat energy that causes because of radiation greatly, reach the ideal energy-saving effect to outdoor transmission.

2, this glass transmittance T (seeing through the optical throughput of transparent or semitransparent body and the percentage of its incident flux) 〉=75%; (radiant ratio is the ratio of unit surface radiating heat commensurability area black matrix radiations heat energy under uniform temp, the same terms of object in this glass radiant ratio≤0.035.The radiant ratio definition is the ability of object absorption or reflecting heat.The radiant ratio of glass approaches zero more, and its heat-insulating property is just good more).

3, this glass can use as double glazing, can standing storage before double glazing closes sheet, and it is easy to process that sheet is closed in the strange land.

[description of drawings]

Fig. 1 is the utility model structural representation.

[embodiment]

Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model:

Referring to Fig. 1, a kind of two silver-colored LOW-E glass include glass substrate 1, are adjacent to successively from inside to outside be compounded with nine retes on the composite surface of glass substrate, and it is characterized in that: wherein first rete is that innermost layer is TiO ₂Layer 21, i.e. titanyl compound---titanium dioxide.Adopt the TiO of high refractive index n=2.5 ₂Be in order to improve the transmittance of glass, and glass is neutral color, TiO ₂The film surface is very smooth, thereby has improved the electric conductivity of silverskin.TiO ₂The thickness of layer is that (nm is a nanometer to 25～30nm, 1m=10 ⁹Nm).

The second layer is a ZnO layer 22, antireflecting metal oxide layer, the further simultaneously electric conductivity that improves silverskin.Zinc oxide (ZnO) can be used as fusing assistant, reduces the sintering temperature of glass, as glass paint, reflected infrared when allowing visible light pass through, to reach insulation or heat insulation effect.The thickness of ZnO layer is 5～8nm.

The 3rd layer is Ag layer 23, and argent provides lower radiant ratio, plays environmental protection and energy saving; The thickness of Ag layer is 6～10nm.

The 4th layer is NiCr layer 24; nicr layer is in order further to protect silverskin; to avoid silverskin to be subjected to etch at reactive sputtering process, also to increase so-called " blocking layer " in thin silverskin one or both sides, this NiCr has very good anti-chemistry and mechanical property for coating.The thickness of NiCr layer is 4～7nm.

Layer 5 is TiO ₂Layer 25, titanium dioxide layer.TiO ₂The thickness of layer is 17～22nm.

Layer 6 is a ZnO layer 26, antireflecting metal oxide layer.The thickness of ZnO layer is 7～12nm.

Layer 7 is an Ag layer 27, argent, and the thickness of Ag layer is 8～12nm.

The 8th layer is NiCr layer 28, and the NiCr layer is in order further to protect silverskin, i.e. blocking layer.The thickness of NiCr layer is 4～7nm.

The 9th layer is that outermost layer is Si ₃N ₄Layer 29, i.e. silicon nitride layer; It has guaranteed that whole coating has the favorable mechanical weather resistance.Si ₃N ₄Film is very hard, and scratch resistance, and its hardness is three times of glass, is TiO ₂Two times; Si ₃N ₄Specific refractory power be 2.05, specific absorption is almost nil, so it is fit closely as the top layer of LOW-E coating.Si ₃N ₄The thickness of layer is 34～43nm.

Two silver-colored LOW-E glass improve a lot on solar properties, and two-layer silverskin can make emittance drop to very low value, and promptly heat transfer coefficient drops to low value; And it still can keep very high visible light transmissivity, so two silver-colored LOW-E coating has good selectivity aspect solar properties when reducing sun power.

LOW-E glass also is called low radiation coated glass.

Claims

1. two silver-colored LOW-E glass includes glass substrate (1), is adjacent to successively from inside to outside be compounded with nine retes on the composite surface of glass substrate, and it is characterized in that: wherein first rete is that innermost layer is TiO ₂Layer (21), the second layer is ZnO layer (22), and the 3rd layer is Ag layer (23), and the 4th layer is NiCr layer (24), and layer 5 is TiO ₂Layer (25), layer 6 is ZnO layer (26), and layer 7 is Ag layer (27), and the 8th layer is NiCr layer (28), and the 9th layer is that outermost layer is Si ₃N ₄Layer (29).

2. two silver-colored LOW-E glass according to claim 1 is characterized in that described the first layer TiO ₂The thickness of layer is 25～30nm.

3. two silver-colored LOW-E glass according to claim 1 is characterized in that the thickness of described second layer ZnO layer is 5～8nm.

4. two silver-colored LOW-E glass according to claim 1 is characterized in that the thickness of described the 3rd layer of Ag layer is 6～10nm.

5. two silver-colored LOW-E glass according to claim 1 is characterized in that the thickness of described the 4th layer of NiCr layer is 4～7nm.

6. two silver-colored LOW-E glass according to claim 1 is characterized in that described layer 5 TiO ₂The thickness of layer is 17～22nm.

7. two silver-colored LOW-E glass according to claim 1 is characterized in that the thickness of described layer 6 ZnO layer is 7～12nm.

8. two silver-colored LOW-E glass according to claim 1 is characterized in that the thickness of described layer 7 Ag layer is 8～12nm.

9. two silver-colored LOW-E glass according to claim 1 is characterized in that the thickness of described the 8th layer of NiCr layer is 4～7nm.

10. two silver-colored LOW-E glass according to claim 1 is characterized in that described the 9th layer of Si ₃N ₄The thickness of layer is 34～43nm.