Introduction of diffused and haze of glass in agricultural and horticultural greenhouse
Modern intelligent agricultural horticultural glass greenhouse covering materials mainly include (fully tempered) diffused glass, antireflection glass, ultra white calendered glass and ordinary float glass.
When distinguishing the types of glass covered in agricultural horticultural glass greenhouses, we need to set a standard, which can not only ensure the gain effect to agricultural horticultural glass greenhouses, but also save costs to owners. Firstly, we consider the gain effect. One of the factors that are helpful to the increase of fruit and vegetable production is the diffused degree of glass, the haze of glass, and finally the light transmittance of glass. Secondly, it plays a role in agricultural horticultural glass greenhouse. Tempering can improve disaster resistance, self-cleaning and save cleaning and maintenance frequency. Finally, the range of glass available for us to screen is much narrower. Among many greenhouse glasses, the glass with diffused and haze standards includes ultra white tempered diffused glass and ultra white tempered antireflection glass (the strength must be tempered again).
While ensuring the light intensity of the greenhouse, increase the diffused degree, so that every corner of the greenhouse can get sufficient light, and the light coverage is more uniform.
Haze is more like a parameter added for global use. Different haze is more consistent with the temperature difference and light intensity in different longitude and latitude areas. It can ensure that greenhouse plants are always at the light saturation point, so as to carry out photosynthesis and growth continuously for 24 hours.
Why do we say that light transmittance and toughening are the secondary standards for the selection of greenhouse glass, not that toughening and light transmittance are not important, whether from the perspective of design or products. The minimum transmittance of greenhouse glass is 91.5%, and the minimum standard of tempering is also determined according to the national standard. If you can't even achieve the most basic toughening and light transmittance, it is recommended that you give up their glass directly.
Summary of standards for greenhouse glass
The most basic specifications: International tempering, more than 90% light transmittance and 3 / 1000 self explosion rate;
Specifications in glass: diffused, haze value, 91.5% light transmittance, 2 ‰ self explosion rate;
High specification of glass: 97.5% high transmittance, high diffused, various haze, 2 / 1000 self explosion rate, etc;
At present, there is no standard for the glass used in agricultural horticultural glass greenhouse, and there are many glass factories with uneven quality. Customers must be careful when choosing manufacturers. Generally, consumers in the professional greenhouse industry will consult diffuse reflection glass, diffused glass and antireflection glass. Many owners only ask tempered glass when consulting glass, and then buy Ag glass, ordinary float glass, Low-E glass and frosted glass. Xiaobian recommends several special glass names for greenhouse: diffused glass (characteristics of diffused glass)_ Greenhouse diffused glass function), haze glass (what is greenhouse diffused glass haze), diffuse reflection glass, antireflection glass (antireflection glass is used in agriculture and other fields) (special glass for museums may be found).