Longitudinal white haze occurring in the middle of the glass panels:
Reasons:
1、The level of the equipment’s roller bed is
poor.
2、Radial runout of the ceramic roller bed.
3、The heat balance is not enough.
4、Low temperature in the upper part of the
convection furnace.
5、The speed of the glass oscillation inside the furnace is too fast.
6、High temperature in the bottom part of the
radiation furnace.
7、Check whether the O-shape belt is slipping.
8、Check whether the main shaft coupling keyway is damaged.
Measures:
1、Check the equipment’s level.
2、Check for the radial runout of the ceramic roller bed. (the bearing seat is filled with high-temperature lithium
lubricating grease)
3、Appropriately switch on a higher heat
balance pressure and operating time.
4. Increase
the speed of the convection blowers above the convection furnace.
5、Lower the speed of the glass oscillation inside the furnace.
6、Lower the temperature in the lower part of
the radiation furnace.
7、Check whether the O-shape belt is loose or
slipping away.
8、If there is any damage, initiate repair or
replace with a new one.
Transverse white haze occurring at both ends of the glass:
Reasons:
1、The temperature difference between the upper
part and the lower part of the furnace is too large.
2、(Radiation furnace) Excessively large heat
balance pressure and operating time.
3、(JetConvection furnace) Excessively high rotating speed of the
convection blowers in the upper part of the furnace.
4、The temperature in the bottom part is set
too low.
Measures:
1、Control the temperature difference between
the upper and lower part of the furnace within 10℃.
2、(Radiation furnace) Appropriately reduce
the heat balance pressure and operating time.
3、(JetConvection furnace) Appropriately lower the rotating speed of the convection blowers in the upper part of the
furnace.