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Method for improving high temperature resistance of temperable low-radiation coated glass

A low-radiation coating and high-temperature-resistant technology, which is applied in the field of improving the high-temperature resistance of toughened low-radiation coating glass, can solve problems such as corrosion of silver layer and glass discoloration, and achieve high thermal stability

Inactive Publication Date: 2010-08-18
洛阳新晶润工程玻璃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the toughened low-emissivity coated glass produced by the above-mentioned process cannot withstand such a long time of high-temperature heating. The alkali ions inside the glass and oxygen atoms in the air will pass through the barrier layer, corrode the silver layer, and cause the glass to change color and become a defective product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] When producing JEC1560 8mm temperable low-emissivity coated glass, seven layers of films are deposited on the glass, the first and seventh layers are silicon oxide films with a thickness of 20nm and 31nm, and the second and sixth layers are zinc oxide The tin-antimony film layer has a thickness of 19nm. The zinc-tin-antimony target material composition in the coating chamber is 47% metal zinc, 52% metal tin, and 1% metal antimony by weight. The third and fifth layers are both nickel-chromium layers with a thickness of 12nm and 14nm. The four layers are silver layers with a thickness of 12nm. The glass is heated in a tempering furnace at 730°C for 330 seconds, then air-cooled and tempered. The tempered index meets the national requirements. The tempered glass index meets the national standard GB15763.2-2005. The visible light transmittance increases by 2.1% before and after tempering, and the color changes by 1.7CIEL * ab, in line with the quality requirements for low-e...

Embodiment 2

[0013] When producing JEC765010nm toughened low-emissivity coated glass, eight layers of films are deposited on the glass. The first and eighth layers are silicon oxide film layers with a thickness of 12nm and 31nm, and the second layer is a titanium oxide film layer with a thickness of The thickness is 18nm, and the third layer and the seventh layer are zinc tin antimony films with a thickness of 19nm. The composition of the zinc-tin-antimony target material in the coating chamber is 50% of metallic zinc, 48% of metallic tin and 2% of metallic antimony by weight. The fourth and sixth layers are nickel-chromium layers with a thickness of 13nm and 15nm, and the fifth layer is a silver layer with a thickness of 13nm. The glass is heated in a tempering furnace at 725°C for 385 seconds, and then air-cooled and tempered to temper the glass The indicators meet the requirements of the national standard GB15763.2-2005. After tempering, the color of the film surface is uniform without ...

Embodiment 3

[0015] When producing JEC14606mm toughened low-emissivity coated glass, seven layers of films are deposited on the glass, the first and seventh layers are silicon oxide films with a thickness of 22nm and 31nm, and the second and sixth layers are zinc tin oxide The antimony film layer has a thickness of 17nm. The composition of the zinc-tin-antimony target material in the coating chamber is 52% of metallic zinc, 45% of metallic tin and 3% of metallic antimony by weight. The third and fifth layers are nickel-chromium layers with a thickness of 12nm and 14nm, and the fourth layer is a silver layer with a thickness of 12nm. The glass is heated in a tempering furnace at 740°C for 235 seconds, and then air-cooled and tempered to temper the glass. The indicators meet the requirements of the national standard GB15763.2-2005. After tempering, the color of the film surface is uniform without discoloration. The visible light transmittance increases by 2.0% before and after tempering, and...

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Abstract

The invention discloses a method for improving the high temperature resistance of temperable low-radiation coated glass. A film coating layer in the coated glass at least comprises a zinc-tin-antimony oxide film layer. In film coating, a zinc-tin-antimony target material in a film coating chamber comprises the following components by weight percent: 40-55 percent of metal zinc, 40-55 percent of metal tin and 1-5 percent of metal antimony. In the invention, products can be heated for about 400 seconds in a tempering furnace the temperature of which is about 730 DEG C as long as a tin oxide film layer with a zinc oxide film layer or a zinc-tin oxide film layer is replaced with the zinc-tin-antimony oxide film layer under the premise that other hard pieces of film coating wires are not changed and other film layer parameters of deposition are not changed, and thereby, the 8mm and 10mm low-radiation coated glass can be tempered.

Description

technical field [0001] The invention belongs to the technical field of low-radiation coated glass production, and mainly proposes a method for improving the high temperature resistance of temperable low-radiation coated glass. Background technique [0002] The production process of toughened low-emissivity coated glass requires depositing a layer of silicon oxide or titanium oxide on the surface of the glass as a base film, and then depositing a layer of tin oxide film as a control layer to adjust the color of the coated glass and block the interior of the glass through the base film Alkaline ions, and then deposit a layer of zinc oxide film as a smooth layer, which can make the surface of the film layer smooth, so that the re-deposited metal silver layer is evenly deposited on the surface, instead of forming an island structure one by one, and can help the front The tin oxide layer regulates the color of the glass, blocks the precipitation of alkali ions inside the glass, a...

Claims

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Application Information

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IPC IPC(8): C03C17/245
Inventor 郭明
Owner 洛阳新晶润工程玻璃有限公司
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