Tempered Glass Door And Windows

Tempered Glass Door And Windows

Tempered glass is widely used with the needs of life, and its quality requirements are also getting higher and higher. I believe everyone knows that the fifth anniversary of Guinness is the only player who failed. He also challenged to break 17 pieces of tempered glass in China. Netizens have...
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Tempered glass is widely used with the needs of life, and its quality requirements are also getting higher and higher. I believe everyone knows that the fifth anniversary of Guinness is the only player who failed. He also challenged to break 17 pieces of tempered glass in China. Netizens have debated the failure of their challenges. Is the quality of China's tempered glass too good? Is there a problem with the fixed method? Regardless of the result, the quality of the tempered glass is very important. Since the glass must 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. Therefore, three factors must be mastered to control this data.


 


First, choose a reasonable heating time. The heating power of the tempering furnace is constant. The heating time is usually set to be about 35 to 40 seconds per mm of thickness of the glass. For example, the heating time of the 6 mm thick glass is about 6 × 38 seconds = 228 seconds. For ordinary flat tempered glass with a thickness of less than 12 mm, when the thickness of the glass is 12 to 19 mm, the basic calculation method of the heating time is about 40 to 45 seconds per 1 mm of thickness glass.


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According to the load condition of the electric furnace, a reasonable heating temperature is selected and the temperature in the furnace is effectively controlled. The heating of the glass in the tempering furnace mainly has conduction, radiation and convection. The electric furnace load referred to herein does not refer to the area occupied by the glass in the electric furnace, but refers to the relationship between the thickness of the glass, the heating temperature, and the heating time.




Third, to achieve uniform heating, the placement of glass in the placement table is also very important. The reasonable arrangement of the release sheet is mainly to ensure the uniformity of the longitudinal and lateral loads in the electric furnace, that is to say, the placement of the glass per furnace and the gap time of each furnace are uniform.


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