CN102501448A

CN102501448A - Single-silver LOW-E (low-emission) glass

Info

Publication number: CN102501448A
Application number: CN2011103491073A
Authority: CN
Inventors: 孙叠文
Original assignee: TORCH BRANCH ZHONGSHAN GRAND GLASS CO Ltd
Current assignee: TORCH BRANCH ZHONGSHAN GRAND GLASS CO Ltd
Priority date: 2011-11-07
Filing date: 2011-11-07
Publication date: 2012-06-20

Abstract

The invention discloses single-silver LOW-E (low-emission) glass, comprising a glass substrate, wherein seven film layers are orderly and adjacently compounded on the compound surface of the glass substrate from inside to outside. The single-silver LOW-E glass is characterized in that: the first film layer, that is, the inmost layer, is Si3N4 layer; the second layer is TiO2 layer; the third layer is NiCrO layer; the fourth layer is TiO2 layer; the fifth layer is Ag layer; the sixth layer is NiCr layer; and the outmost layer is Si3N4 layer. The invention is aimed at overcoming the shortages of the prior art and providing single-silver LOW-E glass high in transmissivity, less in silver consumption and low in cost.

Description

Single silver-colored LOW-E glass

[technical field]

The present invention relates to a kind of coated glass, the silver-colored LOW-E glass of a kind of list of more specifically saying so.

[background technology]

Glass is in the production in the present age and life, to play the part of important role, and glass is all used in the many places of the door and window automotive window of building and windshield or the like, brings a lot of convenience for production and life.But simple glass sunlight transmitance is low, and silver-colored consumption is big, and production cost is high.

[summary of the invention]

The present invention seeks to overcome the deficiency of prior art, provide a kind of transmitance high, silver-colored consumption is few, the silver-colored LOW-E glass of the list that cost is low.

The present invention realizes through following technical scheme:

Single silver-colored LOW-E glass includes glass substrate 1, on the composite surface of glass substrate, is adjacent to successively from inside to outside be compounded with seven retes, and it is characterized in that: wherein first rete is that innermost layer is Si ₃N ₄ Layer 21, the second layer is TiO ₂Layer is that the NiCrO layer is TiO for 23, the four layers for 22, the three layers ₂Layer 24, layer 5 is an Ag layer 25, and layer 6 is a NiCr layer 26, and outermost layer is Si ₃N ₄ Layer 27.

The silver-colored LOW-E glass of aforesaid list is characterized in that the Si of said first rete ₃N ₄The thickness of layer 21 is 15～20nm.

The silver-colored LOW-E glass of aforesaid list is characterized in that the TiO of said second rete ₂The thickness of layer 22 is 20～35nm.

The silver-colored LOW-E glass of aforesaid list, the thickness that it is characterized in that the NiCrO layer 23 of said tertiary membrane layer is 2～5 nm.

The silver-colored LOW-E glass of aforesaid list is characterized in that said the 4th layer of TiO ₂The thickness of layer 24 is 8～15nm.

The silver-colored LOW-E glass of aforesaid list, the thickness that it is characterized in that said layer 5 Ag layer 25 is 5～10nm.

The silver-colored LOW-E glass of aforesaid list, the thickness that it is characterized in that said layer 6 NiCr layer 26 is 2～5nm.

The silver-colored LOW-E glass of aforesaid list is characterized in that said outermost layer Si ₃N ₄The thickness of layer 27 is 20～35nm.

Compared with prior art, the present invention has following advantage:

1, this glass utilizes TiO ₂The high index of refraction of film makes the coated glass color be neutral, makes it to have higher visible light transmissivity, and utilizes TiO ₂Reduce the face resistance of silverskin, reduce the consumption of silver.

2, this glass light transmittance T (seeing through the luminous flux of transparent or semitransparent body and the percentage of its incident flux)=65%～80%; This glass radiance≤0.08, reflectivity RG=8%～20%, shading coefficient SC=0.43～0.65.

3, this glass can use as double glazing, can long term storage before two double glazings close sheet, and it is easy to process that sheet is closed in the strange land.

4, the transmitance deviation is little behind this glass tempering, and it is little to drift about, the little a*=-1 of misalignment～-3, b*=-2～-7.

[description of drawings]

Fig. 1 is a structural representation of the present invention.

[specific embodiment]

Single silver-colored LOW-E glass includes glass substrate 1, on the composite surface of glass substrate, is adjacent to be compounded with seven retes from inside to outside successively, and wherein first rete is that innermost layer is Si ₃N ₄ Layer 21, the second layer is TiO ₂Layer is that the NiCrO layer is TiO for 23, the four layers for 22, the three layers ₂Layer 24, layer 5 is an Ag layer 25, and layer 6 is a NiCr layer 26, and outermost layer is Si ₃N ₄ Layer 27.

The Si of said first rete ₃N ₄Layer 21, i.e. silicon nitride layer; Si ₃N ₄Be a kind of adamantine material, it has guaranteed that whole coating has the favorable mechanical durability, is arranged on last one barrier of innermost layer as cover glass, Si ₃N ₄The thickness of layer is 15～20nm, and nm is a nanometer, 1m=10 ⁹Nm.

The TiO of said second rete ₂Layer 22, i.e. titanyl compound---titanium dioxide.Adopt the TiO of high index of refraction n=2.5 ₂Be in order to improve the light transmittance of glass, and glass is color-neutral, makes it to have higher visible light transmissivity, and utilize TiO ₂Reduce the face resistance of silverskin, reduce the consumption of silver.TiO ₂The film surface is very smooth, thereby has improved the conductance of silverskin.Thickness is 20～35nm.

The NiCrO layer 23 of said tertiary membrane layer, thickness are 2～5nm.

Said the 4th layer of TiO ₂Layer 24, i.e. titanyl compound---titanium dioxide, thickness is 8～15nm.

Said layer 5 Ag layer 25, i.e. metallic silver layer, metallic silver layer provides lower radiance, plays environmental protection and energy saving; The thickness of Ag layer is 5～10nm.

Said layer 6 NiCr layer 26; It is nicr layer; Nicr layer is in order further to protect silverskin; To avoid silverskin to receive etch at reactive sputtering process, also to increase so-called " barrier layer " in thin silverskin one or both sides, this NiCr has very good anti-chemistry and mechanical performance for coating.The NiCr layer thickness be 2～5nm.

Said outermost layer Si ₃N ₄ Layer 27, i.e. silicon nitride layer; Silicon nitride is a kind of adamantine material, and it has guaranteed that whole coating has the favorable mechanical durability.Si ₃N ₄Film is very hard, and scratch resistance, and its hardness is three times of glass, is TiO ₂Two times; Si ₃N ₄Refractive index be 2.05, absorptivity is almost nil, so it is fit closely as the top layer of Low-E coating.Si ₃N ₄The layer thickness be 20～35nm.

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

This glass utilizes TiO ₂The high index of refraction of film makes the coated glass color be neutral, makes it to have higher visible light transmissivity, and utilizes TiO ₂Reduce the face resistance of silverskin, reduce the consumption of silver.This glass light transmittance T (seeing through the luminous flux of transparent or semitransparent body and the percentage of its incident flux)=65%～80%; This glass radiance≤0.08, radiance are the ratios of heat commensurate area black matrix radiations heat energy under uniform temp, the same terms of the unit are radiation of object.The radiance definition is the ability of object absorption or reflecting heat.The radiance of glass approaches zero more, and its heat-insulating property is just good more.Reflectivity RG=8%～20%, shading coefficient SC=0.43～0.65.This glass can use as double glazing, can long term storage before two double glazings close sheet, and it is easy to process that sheet is closed in the strange land.The transmitance deviation is little behind this glass tempering, and it is little to drift about, the little a*=-1 of misalignment～-3, b*=-2～-7.

Claims

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

2. the silver-colored LOW-E glass of list according to claim 1 is characterized in that the Si of said first rete ₃N ₄The thickness of layer (21) is 15～20nm.

3. the silver-colored LOW-E glass of list according to claim 1 is characterized in that the TiO of said second rete ₂The thickness of layer (22) is 20～35nm.

4. the silver-colored LOW-E glass of list according to claim 1 is characterized in that the thickness of the NiCrO layer (23) of said tertiary membrane layer is 2～5nm.

5. the silver-colored LOW-E glass of list according to claim 1 is characterized in that said the 4th layer of TiO ₂The thickness of layer (24) is 8～15nm.

6. the silver-colored LOW-E glass of list according to claim 1, the thickness that it is characterized in that said layer 5 Ag layer (25) is 5～10nm.

7. the silver-colored LOW-E glass of list according to claim 1, the thickness that it is characterized in that said layer 6 NiCr layer (26) is 2～5nm.

8. the silver-colored LOW-E glass of list according to claim 1 is characterized in that said outermost layer Si ₃N ₄The thickness of layer (27) is 20～35nm.