What is the reason and how to solve the problem of white haze at the middle of tempered glass made by glass tempering furnace?

For the problem of white haze caused by ceramic roller, normally, you can try to solve it by following way:

1.Maybe the ceramic roller is dirty, pls clean the ceramic roller

2.The bottom heating temperature is high, pls reduce the heating temperature for bottom little

3.You know, there is one thermal/heating balance system at the top of oven, pls open this system. I think your furnace has this system

4.There is parameter named “heating-swing speed” or similar, pls reduce this speed little

Pls try to do the above things, hope this is helpful to reduce the white haze

Once you have any enquiry, pls let me know

My whatsapp/wechat ID: 008618739097515