Price Landglass steel furnace steel furnace Fig forced convection flat tempering furnace

Forced convection flat tempering furnaces | tempering furnaces | Landglass steel furnace 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, Frosted glass and steel Mongolia Sand glass (frosted glass) is a homogeneous rough surface with sandblast glass or hydrofluoric acid etching glass is formed. Frosting technology can also be combined with screen printing technology to produce a variety of different patterns and designs on the glass surface for decoration, produce hazy, noble, elegant decorative effect. Frosted glass and steel-sided, we need to put into the furnace Frosted face up to avoid damage to the roller. Since Frosting surface is matte, to heat absorption enhancement, Frosted glass surface temperature rises quickly, the production time, to set the upper temperature lower than the lower part, holding the furnace temperature uniformity. In addition, quenching the windward gate height slightly lower, but also help produce high-quality glass Frosting. Frosted glass and steel double-sided, glass will have some friction roller damage, it should be avoided producing double-sided Frosted glass. If you really need to produce, it can adjust the line speed of the glass movement is small, and 5% to 10% shorter heating time. After production, with waste glass (must be clean) friction dressing roller. 1.2.2 intermediate and edge deformation temperature difference caused by the glass when the glass is heated in a heating furnace, if the central temperature is higher than the edge of the final glass temperature, the glass in the cooling process, the heat shrinkage of the intermediate portion is greater than the contraction of the cold side portions, eventually the glass is cooled to room temperature and the temperature difference disappears, the edge will be greater than the size of the glass intermediate size, at the edge of the glass of the large compressive stress is formed as a balance this uneven stress, showing saddle-shaped glass. Similarly, a piece of glass is heated in a heating furnace, if the final extension of the temperature distribution in the plane is higher than the central edge portion, the glass in the cooling process, the hotter the glass edge portion is greater than the shrinkage of the middle of the shrinkage of the cooler, the final glass is cooled to room temperature and the temperature difference disappears, intermediate size will be larger than the edge of the glass size, at the edge of the glass to form a larger tensile stress state, to balance this uneven stress in the glass pot-shaped state final presentation, and this states is bidirectional, that is, the middle of the convex glass will change both directions