Typically two-thirds of the overall use of glass as long as the heating time can be at or near the temperature of steel, glass 8mm, and then the glass temperature becomes slow, the time period after the internal temperature of the glass is mainly used for homogenization and stress relief, but this time is a must, glass factory, it helps to improve the quality and yield toughened glass. Lowe steel coated glass can be heated, Weifang glass in the furnace with forced convection system, so as to ensure the quality of the quality of tempered glass. Stress distribution of glass in the thickness direction of the parabola, the surface compressive stress, inner tensile stress. When the glass is subjected to mechanical force, mechanical force is converted to stress, the stress of the original steel superposition of stress, causing stress migration, stress tensile stress line to compressive stress layer of glass movement, steel sheets formed partly offset stress. Since the compressive strength of glass is much larger than the tensile strength of the glass so that the glass will not break. Cooling rate and the final glass temperature depends on the production cycle, so as not to form too large temporary stress prevail. Pressure semi-tempered glass upon cooling required is much smaller than glass. Weifang tempered glass, glass preferred Yaohui, 12mm tempered glass by Glass Co., Ltd. Jinan Yaohui. Weifang tempered glass, glass preferred Yaohui, 12mm tempered glass Jinan Yaohui Glass Co., Ltd. (www.jyhhc.com/) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page obtain the latest information, contact: Liang Jingli.