Temperable Low-E energy-saving glass

Abstract

The invention discloses a temperable Low-E glass, which comprises a raw glass sheet, and a first silicon nitride priming medium layer, a second titanium oxide layer, a third nickel chromium protectivelayer, a fourth silver functional layer, a fifth nickel chromium metal protective layer, a sixth zinc oxide layer, a seventh silicon nitride layer and an eighth graphite protective layer that are plated on the raw glass sheet in order. The temperable Low-E glass film layers provided by the invention have very high stability and can endure high temperature tempering treatment, can be subjected toheating tempering treatment at the end of film coating, and are convenient for remote shearing and tempering machining of Low-E glass. Also the Low-E glass has high light transmittance of greater than60%, high infrared rejection efficiency, a shading coefficient of less than 0.5, and a light-heat ratio of more than 1.4, and meets high quality and low radiation rejection performance. Compared withmost of the existing high transmittance single silver temperable products, the temperable Low-E glass provided by the invention has lower shading coefficient and significant energy-saving advantage.

Description

technical field [0001] The invention relates to the field of environment-friendly and energy-saving building materials, in particular to a temperable Low-E energy-saving glass, in particular to a temperable Low-E (Low-E) energy-saving glass with high light transmittance and low sunshade. Background technique [0002] Low-emissivity coated glass (Low-E glass) is a kind of coated glass with a high reflectance to infrared rays with a wavelength of 4.5-25 μm. This kind of coated glass has high light transmittance to visible light, which ensures indoor lighting, and has high reflectivity to far-infrared light, so as to prevent the glass from absorbing outdoor heat and then generating thermal radiation, which transmits heat into the room and indoor objects. The heat generated is reflected back to achieve the purpose of reducing the heat radiation passing through the glass. This reduces energy consumption for heating and cooling the building. [0003] The performance of Low-E gla...

AI Technical Summary

Problems solved by technology

This production method is inefficient. During production, the coating line arrangement must be arranged according to the specific product size, and the maximum loading rate coating cannot be achieved.

Furthermore, if a defective product is produced, the original glass sheet needs to be tempered first in the patching process, and then coated. If the tempered glass is not prepared in time, it will have a certain impact on the delivery time of the product.

[0014] Moreover, the existing high-transmittance single-silver low-radiation energy-saving glass has insufficient mechanical strength, and the film surface needs to be protected by a film during transportation.

Greatly increase the cost of the product, the product shipment process is more complicated, increase the cost of the product, resulting in higher product prices, which is not conducive to the promotion and use of energy-saving and environmentally friendly building materials

[0015] In addition, due to the insufficient mechanical properties of existing products, it is easy to cause damage to the film surface during cutting, edging and other processing processes, resulting in low processing efficiency and low yield of such products

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