Tempered glass is widely used in the needs of life, and its quality requirements are getting higher and higher. I believe we also know that Guinness ’s fifth anniversary of Luben is the only player who lost the game and also broke 17 pieces of toughened glass in our country. Many netizens have disputes about their defeat, and many netizens have disputes about the battle and the defeat. Is the quality of tempered glass in China too good? Is there any problem with the fixing method? Regardless of the results, the quality of tempered glass is very important. Because the glass needs to be heated to the corresponding temperature, the temperature of each part of the glass surface should be uniform, and the difference should not be too large, so we need to grasp a factor to control this data.

First, choose a reasonable heating time. The heating power of the tempering furnace is confirmed. Normally, the set heating time is about 35-40 seconds per mm thick glass. For example, the heating time of 6 mm thick glass is about 6 x 38 seconds=228 seconds. This calculation method is applicable to ordinary flat tempered glass with a thickness less than 12 mm. When the glass thickness is 12-19mm, the basic calculation method of heating time is about 40-45 seconds per 12mm thick glass.

Secondly, according to the load of the electric furnace, select a reasonable heating temperature to effectively control the temperature in the furnace. The heating of the glass in the tempering furnace mainly includes conduction, radiation and convection. The electric furnace load mentioned here does not refer to the area occupied by glass in the electric furnace, but refers to the relationship between glass thickness, heating temperature and heating time.

Third, in order to achieve uniform heating, the placement of glass on the table is also very important. The reasonable placement of the discharge plate is mainly to ensure the uniformity of the vertical and horizontal loads in the electric furnace, that is, the placement of the discharge plate of each furnace glass and the gap time of each furnace should be uniform.