Measures to eliminate the influence of quartz ceramic roller on the surface of tempered glass
In response to the quality problems of the quartz ceramic roller table, after consulting with relevant experts and manufacturers, we have taken the following measures:
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1, fed to the furnace to <br> <br> SO2 gas SO2 gas into the furnace, and help protect the glass surface condition of the roller, but requires strict control of the amount of SO2, SO2 if added too much, The surface of the roller is prone to agglomeration of sodium sulfate, which causes the quality of the small transparent pit to be formed on the surface of the glass. When the amount of SO2 gas is too small, the roller cannot form a protective film on the surface in a short time and cannot be produced. 2h, by using the waste glass to rub the surface of the roller, the scratch of the glass can be reduced, and the production requirements of the general glass can be met.
2, adjust the process parameters
First, properly reduce the temperature inside the furnace. Increasing the heating time Since the tempering process must be heated to a certain temperature, the adjustment can only be carried out under the premise of satisfying the tempering process, and cannot be adjusted greatly.
The second is to reduce the line speed of the glass in the furnace. The glass keeps reciprocating during the heating process, and is often in the process of acceleration and deceleration. Lowering the linear speed can reduce the acceleration of the glass and reduce the friction between the glass and the roller due to inertia, thereby reducing the glass. Scratched surface. However, the line speed can not be reduced too much, so as to avoid the deformation of the glass and affect the flatness of the glass.
Here are a few suggestions:
(1) As the horizontal tempering furnace heats up and then heats up, the surface of the glass will be damaged. It is necessary to reuse the glass friction roller, which wastes manpower and material resources and reduces production efficiency. It is recommended to maintain continuous production and reduce furnace shutdown. operating.
(2) In the production process, due to the continuous passage of a large amount of SO2 gas, the surface of the roller is prone to agglomeration of sodium sulfate. When it is found that there is a transparent pit mark on the surface of the glass, the roller path should be stopped in time.
(3) Since the surface of the embossed glass is not flat, there is a certain damage to the surface of the roller. Therefore, it is recommended not to temper the embossed glass. If it is necessary to temper, it is necessary to re-friction the roller after the tempering.
(4) When cleaning the roller, clean the surface of the bearing and the surface of the bearing seat at the same time to ensure that all the rollers are in the same plane, and reduce the positional deviation between the rollers.