免费看国产黄_日本做aj的视频_又爽又骚无遮挡的网站_精品一级毛片国产_国产一区二区久久精品_日本欧美色图亚洲_影音先锋人妻啪啪av资源网站_黄网站色视频大全在线观看_日本在线中文字幕D√D_成人理伦电影在线观看一区

According to the new national decree, fire doors have been listed as one of the products of fire protection system. Fireproof glass door is a kind of fireproof door. However, the fireproof glass door is different from the general fireproof door, its appearance plasticity is strong, and can produce a more beautiful appearance. Therefore, the fireproof glass door can be used not only in fire passages and public places, but also in indoor decoration, which is beautiful and.

I. functions and features of fireproof glass doors

1. High fire resistance: high fire resistance is an outstanding advantage of fireproof glass doors. The glass of fire-proof glass door belongs to fire-proof glass. This glass is obtained by using float glass through physical and chemical reaction. It can be burned in the flame and will not explode or melt within a certain time.

2. High weather resistance: the fireproof glass door can withstand the sun and rain, and can withstand the baptism of months and years. It can shine through the ultraviolet light, its appearance and function will not be affected, and can maintain a transparent and bright visual effect.

3. The of glass is our concern. It can be said that the fire-proof glass door is a relatively glass door, and the hardness of fire-proof glass is 6-12 times that of float glass; It is 2-3 times that of tempered glass. The fire-proof glass is in an obtuse angle after being broken, and the fragments are smaller than those of tempered glass, which can reduce the damage to people.

II. Distinction of fireproof glass doors

Fire resistant glass doors are classified according to different standards, and their statements will be different.

According to the classification of fire resistance function and heat insulation function, it is mainly divided into class A, class B and class C. Class a fireproof glass door refers to the two functions of fire resistance and heat insulation, mainly composite type and pouring type. These two products not only have fire resistance and heat insulation functions, but also have the characteristics of light transmission, smoke separation and sound insulation. They can be applied to doors, windows, transparent floors and other places. Class B fireproof glass is required to have fire resistance. Composite glass is widely produced and used in the market, which has the function of smoke separation and fire prevention. Of course, its function cannot be comparable with class A. Class C fireproof glass door is a single piece of fireproof glass, which only has the function of fire resistance. Its advantages are high strength, smoke isolation, and the defect is that it cannot be insulated. This kind of fireproof glass door is economical and can be used as fireproof window and outdoor curtain wall.

III. key points for attention when using fireproof glass doors

According to the new national standard GB16809-2008 "fire windows" issued in 2008, it is required that the home decoration profession needs to install fire windows and fire-proof glass. Gradually apply the fire-proof glass door to the home decoration profession, but our understanding of the fire-proof glass door is not deep enough to recognize its importance. We must not have the mentality that the installation does not matter and everything is fine on the installation.

The manufacturer shall be selected for the fireproof glass door of the device, and the inspection certificate of the manufacturer shall be seen. Together, the fireproof glass door can not be regarded as a single fireproof material, but should be treated as a fireproof system. The type of fireproof glass door to be selected shall be determined after consulting the relevant manufacturer.

Article source: fireproof glass door http://hanzhicheng.cn/