Glass Tempering Furnace suppliers, continuous glass tempering furnace, glass tempering furnace Landglass

Glass deformed mainly from two aspects, the first issue is the precision roller, the second is the problem of uneven stress. 1.1 Roller presence flatness problems caused by bad tempered 1.1.1 heating roller deformation generally horizontal roller furnace steel roller is made of fused quartz or ceramic material, has good thermal shock resistance and thermal stability, but because of unevenness sometimes its internal structure, at the time of heating may cause thermal deformation particularly at high temperatures. Hot roller deformation caused by the bending roller inevitable, but also inevitably lead to deformation on the surface of the glass movement. 1.1.2 when the roller is worn roller after prolonged use and repeated cleaning, will inevitably lead to wear roller, especially in the clean-up rollers bonding more solid impurities, usually using grinding methods to clean up, long-term use and multiple roller mill clean-up will lead to loss of unevenness. On the one hand appear in the same rollers or appear eccentric uneven thickness between the roller and the roller on the other hand sometimes, but at the same time because they do not also replace the use of uneven thickness of the old roller or different degree of wear roller simultaneously also It will lead to uneven thickness roller. These results appear will result in uneven running surface of the roller, the glass in this uneven rollers eventually heated to the softening temperature, and conduct drive uneven rollers, softened glass there will be deformed, this deformation reservations glass After the glass to be reinforced, toughened glass will after deformation. 1.1.3 grilles roller deformation of the glass in the heating furnace was quickly transferred to the wind gate rollers, when the glass is still in a softened state, if the deformation roller grille inevitably affect the flatness of the glass, and the most likely to make the wind gate The main roller deformation there are two reasons: First, the drive roller bend, and second insulating material roller surface defects. Glass deformed mainly from two aspects, the first issue is the precision roller, the second is the problem of uneven stress. 1.2 due to the heating caused by the thermal deformation temperature unevenness exists 1.2.1 glass surface temperature difference during the heating up and down, when the glass is delivered to the heated rollers, the lower surface of the glass in contact with the roller, the heating roller directly conducting manner glass by heat exchange, on the surface of the glass on the surface of the glass is heated by way of heat radiation, the heat transfer rate is higher than the upper surface of the lower surface of the heat transfer rate, when the thermal equilibrium is not taken when the auxiliary heating, the surface temperature of the glass lower than the temperature of the lower surface, and at the start of heating the glass is a typical elastomer, the thermal expansion coefficient and relatively high glass (linear expansion coefficient of the glass was 9 × 10 / .C), since the surface temperature is higher than the temperature of the upper surface , the expansion rate is higher than the upper surface of the lower surface of the glass that is bent upward from the glass surrounding Alice roller to form an intermediate glass is heated, and is only the middle roller support, when the glass is further heated in contact with the roller position First to reach the softening temperature and subjected to the full weight of the glass, the middle of the glass will occur "floating" deformed, resulting in thinning of the site and asked the roller prints and even optical distortion. On the other hand when all the glass is heated to the softening temperature of the glass flattened, but the temperature difference did not disappear with the temperature difference between the glass is uniformly cooled to room temperature, the contraction is greater than the cold surface of the glass heat shrinkage to form the heat curved surface. Randy machine glass tempering furnace | [glass tempering furnace supplier] | glass tempering furnace is provided by Randy machines. Glass Tempering Furnace, Randy machine glass tempering furnace, glass furnace steel suppliers Randy Luoyang Glass Machinery Co., Ltd. (www.landglass.com) 2014 has been newly upgraded launched