Continuous glass tempering furnace, glass tempering furnace Landglass map, glass tempering furnace supplier

Glass tempering furnace, continuous glass tempering furnace, glass tempering furnace Landglass provided by Randy machines. We are Luoyang Randy Glass Machinery Co., Ltd. (www.landglass.com) in: Luoyang specializes in: steel furnace, glass tempering furnace, forced convection tempering furnace, convection oven, dual-chamber furnace glass flatness and thickness difference unevenness in use, on the one hand caused by the reflective optical distortion of the glass, on the other hand also have optical distortion, it will cause the combined thickness of the laminated glass sheet after unevenness when used in laminated glass, causing optical distortion on the further impact visual effects products, local thinning will affect the bonding properties of laminated glass products; glass curvature if not, when applied to hollow glass, in co-extruded plastic films can cause uneven isobutyrate, affecting the appearance quality, also affect the quality of the seal, and may cause local thick, further affect the installation. Thereby controlling the flatness of tempered glass is very important. 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.