Products Products
产品名称:

Toughened glass

上市日期: 2016-08-20
建议销售价: 0

Steel, semi-tempered glass is heated to a temperature near the softening point after rapid cooling to obtain a uniform surface has a strong compressive stress, the mechanical performance of doubling glass products. Tempered glass surface stress value at 90 Mpa or more, semi-tempered glass surface stress values between 24-69 Mpa.


Tempered glass Features:

High intensity: glass bending strength is 3-4 times that of ordinary glass, impact strength is 6-7 times that of ordinary glass.

Thermal stability: Tempered glass has good thermal stability, it can withstand 300 ℃ temperature change is 3 times that of ordinary glass.

Safety: Because of the presence of stress glass layer, so as to have a strong impact resistance, making it difficult to damage, and breakage of the glass pellets are obtuse formed body will not produce a greater harm.


Semi-tempered glass Features:

Semi-tempered glass, also known as heat strengthened or tempered glass, which is 1.5-2 times the strength of ordinary annealed glass, the thermal stability of ordinary annealed glass double, semi-tempered glass flatness, light transmittance and closer to ordinary annealed glass much better than glass, its biggest advantage is the absence of blew ills, but once generated damage, damage its shape is closer to ordinary annealed glass easily understood wounding.


specification:

Dimensions: Max size: 11000mm × 3000mm

The minimum processing size: 200mm × 300mm

Thickness: glass: 4-25mm


prompt:

Glass blew easy to produce, due to the glass inside the non-vitreous materials (nickel sulfide, etc.) and glass processing methods caused. Another glass surface, edge because of transportation, installation, maintenance, resulting in fried mouth, chipping, easily damaged surface corrosion induced stress toughened glass burst. Installation gap is too small or direct contact with the glass and the frame is also easy due to expansion coefficient inconsistent burst. Glass drilling or cutting angle glass comparing such processing is not carried out more easily burst.


Product Standards:

GB15763.2-2005 "glass" GB

 

Steel blew their causes:


 Underlying causes blew glass mixed in the manufacturing process of nickel sulfide impurities, about every seven tons of glass in there a little bit of sulfur

 Nickel. There are two crystal nickel sulfide, at high temperatures (T> 380 ℃) showed a smaller crystal phase α, β crystal phase at low temperatures.

 Steel heating stage due to the relatively slow heating rate, its opposite β crystal polymorph α crystal phase transition is relatively complete, and in

 Steel cooling stage, due to rapid cooling, α crystalline phase late into β crystal phase state at room temperature α crystalline phase slowly recover

 Complex for the relatively bulky β crystalline phase, with volume expansion of about 4%, resulting in glass have burst.

 Nickel sulfide causes blew diameter of between 0.04-0.65mm, the average particle diameter of 0.2mm, a nickel sulfide in the glass.

 Like tensile stress zone is located, mostly in board core portion high tensile stress zone.

 Further, since the original piece of glass defects, improper or pretreatment of steel heating, cooling excessive concentration of stress caused by uneven, too

 One of the reasons is to produce glass blew.


Avoid blew possibility manner: homogenization (HST)

 

Homogenization is recognized as an effective way to solve the problem blew the glass again heated to about 290 ℃ and holding a certain time, so that nickel sulfide glass factory before the completion of phase transformation, so that in the future may blew glass in the factory in advance broken. This method of steel after heat treatment again, called "Heat Soak Test", referred to as the HST. Often called "homogenization", also known as "tipping processing" or "hot-dip process."


 Select high-quality float glass, glass pre-processing to enhance the quality control of tempered glass surface stress, can be reduced

 The possibility of glass blew.


Tip: tempered glass blew mainly due to internal stress caused by uneven, I plant has been established online testing system, using imported stress

 Instrument for stress testing to ensure balanced tempered glass stress, or the use of homogenizing furnace secondary treatment, are greatly reduced blew rate.


Hot Products / Hot deals More
2016 - 08 - 20
Steel, semi-tempered glass is heated to a temperature near the softening point after rapid cooling to obtain a uniform surface has a strong compressive stress, the mechanical performance of doubling glass products. Tempered glass surface stress value at 90 Mpa or more, semi-tempered glass surface stress values between 24-69 Mpa.Tempered glass Features:High intensity: glass bending strength is 3-4 ...
2016 - 08 - 20
Laminated glass is the use of polyvinyl butyral (PVB) film glassware after two or more layers of glass bonded by high temperature and pressure processing obtained. Transparencies made of laminated glass, the appearance of ordinary annealed glass are basically the same, but because of the toughness of PVB film is very good, when the laminated glass is subjected to external shocks, the film will qui...
2016 - 08 - 20
Insulating glass is two intermediate glass or two or more in order to effectively support the full and efficient desiccant cavity spacing, use of efficient edge sealant after bonding glass, wherein the glass can be selected according to the general design, the need annealed glass, colored glass, tempered glass, laminated glass, coated glass, Low-E glass, bending glass, as the substrate for process...
2016 - 09 - 02
the four-step energy-saving meaning:State of residential building energy conservation requirements are clearly defined, whereby provinces have enacted relevant local standards "residential building energy efficiency design standards."1986 introduced a 30 per cent energy efficiency standards, this stage is called "one energy";In 1995, the national energy efficiency standards wil...
China English
Links / Links
更多>>
Copyright ©2005 - 2013 Beijing Haiyang Shunda Glass Co., Ltd.
犀牛云提供企业云服务