First, what is super white glass?
Super white glass is a kind of super transparent, high quality, multi-functional new glass varieties, can be called the top student in glass. Like ordinary glass, ultra-white glass is also a kind of original glass, which can make insulating glass, insulating glass, and insulating laminated glass. However, the development of ultra-white glass in China started late, and there are not many original glass manufacturers that master the production technology.
Second, what are the advantages and disadvantages of ultra-white glass:
Super white glass has three main advantages,
First, low iron content and high transparency.
The more iron compounds in the glass, the more serious the glazing. The iron content of ultra-white glass is only 10% or less of ordinary glass, which makes ultra-white glass look closer to colorless and transparent, and the naked eye can see a very obvious difference.
Second, the content of nickel sulfide is low, and the self-detonation rate is low.
Nickel sulfide is the culprit of tempered glass self-explosion, because the content of nickel sulfide in ultra-white glass is very low, so its self-explosion rate can be reduced to less than 1/1000.
Third, the impurity content is low and the light transmittance is high.
For example, the light transmittance of ordinary white glass is generally about 87%, while ultra-white glass can reach more than 91%, and the light transmittance of ultra-white glass is less affected by the change in glass thickness.
In addition, anti-reflection treatment can also be carried out in the late deep processing process to increase the light transmittance to 98%. Equivalent to transparent state.
The so-called success is also Xiao, and the failure is also Xiao, precisely because the ultra-white glass has a high light transmittance and low self-explosion rate, resulting in the following two shortcomings.
First, UV transmittance is high.
Taking 5+12A+5 insulating glass as an example, the ultraviolet transmission ratio of ordinary white glass is 47.4%, and ultra-white glass can reach 75.5%, which leads to the thermal conductivity of ultra-white glass is higher than ordinary white glass, so you want to use ultra-white wave and worry about ultraviolet and thermal insulation, you can consider plating a layer of low-e. Preferably on the outside of the hollow layer, the effect is better.
Second, the price is high.
The production process of ultra-white glass is very complex, and the requirements for production technology and equipment are very high, and the price of ordinary ultra-white glass is one to two times higher than that of ordinary glass, and can even reach more than five times that of ordinary glass.
Third, in which case can we choose super white glass?
First, the ultra-white glass has a high light transmittance and is very suitable for rooms with poor lighting conditions
Second, a single piece of super-large glass that reaches ten square meters or even a dozen square meters. The cost of glass self-explosion is not a small number, so the large glass chooses ultra-white glass to reduce the risk of self-explosion.