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How does the tempering furnace temperature affect the quality of tempered glass?

点击:发布日期:2021/8/2

When the glass just into the heating furnace, heating speed is quite fast, this is because the temperature difference between the glass and the tempering furnace temperature is very large, the glass in the furnace heating speed is very fast; With the reduction of the temperature difference between the glass and the furnace temperature in the furnace, the heating speed of the glass will slow down. When the temperature difference between the glass and the outer layer tends to zero, the heat transfer in the furnace will slow down significantly.

If the tempering furnace heating temperature is too high, the temperature of the glass in the furnace exceeds the temperature of its softening point, the glass in the furnace is easy to deformation, will seriously affect the surface quality of tempered glass;

If the heating temperature of the tempering furnace is too low, the temperature of the inner layer of the glass can not reach the required temperature in the set time, the residual stress in the glass can not be completely relaxed, which will affect the redistribution of the stress after cooling, and the glass is easy to be broken in the quenching process;

If the tempering furnace heating temperature is too low, the tempering performance of the glass is poor, the tempered glass particles will become larger after broken;

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