Kimmo Kuusela
This week’s questions are referring to white haze, the bow of the glass and the correlation between connected power and energy consumption. The questions are:
For this week’s questions, see our full video response below!
As always, remember to learn, share and succeed!
White haze can be caused by several reasons. There is no one single solution for each and every case. We have step-by-step instructions on how to figure out the root cause of the problem and act accordingly. Please read more from the link below:
Killing the glass ghost: how to eliminate white haze from tempered glass?
Based on the descriptions given in the question, we can presuppose that the problem is coming more from the cooling section of the tempering line. This means that there might be blocked quenching nozzles or some other issue, which is causing uneven cooling pressure distribution throughout the quench, making the glass bend. The problem can be solved by either fixing the furnace or checking and cleaning the cooling section.
The connected power and energy consumption of a tempering line has no correlation whatsoever. Higher connected power doesn’t have a direct effect on the energy consumption. Usually, higher connected power means more control of the tempering line, which actually means lower energy consumption.
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Glastory 
What should our tempering operators check or adjust to remove “light intensity” tempering haze that is located in the center of the glass running lengthwise down the center of the glass. Mainly on the LoE temperable glass that is 5.7mm in thickness. The light haze is not removable with cerium oxide and a rag. Appears to be very fine “abrasions” or “areas of fine scratches.”. Thank you