Le fournisseur de films pour vitrage Harvakids se concentre sur différents types de fabrication de films pour vitrage personnalisés depuis 2005.
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What are the types and functions of energy-saving glass?
1. Coated glass: Coated glass is to coat one or more layers of metal, alloy or metal compound on the surface of the glass to change the properties of the glass. According to different characteristics, it can be divided into heat reflective glass and low-emissivity glass.
Heat reflective (sunlight control) glass is generally coated with one or more thin films composed of metals such as chromium, titanium or stainless steel or their compounds on the surface of the glass to make the product rich in color and have appropriate transmittance for visible light. It has high reflectivity for infrared rays and low transmittance for ultraviolet rays. Therefore, it is also called solar control glass. Compared with ordinary glass, the shading coefficient is reduced, that is, the shading performance is improved, but the heat transfer coefficient is not changed much.
Low-emissivity (LOW-E) glass is a thin film composed of multiple layers of silver, copper or tin and other metals or other compounds coated on the glass surface. The product has high transmittance of visible light and high reflectivity of infrared rays. Good thermal insulation performance, due to the poor strength of the film layer, it is generally made into insulating glass and not used alone.
2. Insulating glass: Insulating glass is made of two or more pieces of glass framed by an aluminum hollow frame and sealed by cementing or welding. A free space is formed in the middle, which can be filled with dry air or inert gas. Its heat transfer coefficient U is The single-layer glass is small and has good thermal insulation performance, but its shading coefficient SC decreases very little and the heat reflectivity of solar radiation does not improve much.
3. The composite of coated glass and insulating glass: including heat-reflective coated insulating glass and low-emissivity coated insulating glass. The former can reduce the heat transfer coefficient and shading coefficient at the same time, while the latter has better light transmittance. Types and functions of architectural glass films.
