How to eliminate the defects of tempered glass?

After the glass tempered, there are defects such as glass strip and pitting, which is fatal and unqualified for a piece of glass.

Why do these problems generated ? how can they be solved?

1, The glass strip

If the temperature is set too high and the heating time is too long, the glass will appear wave. Because the glass has been heated more than the critical point, the glass has begun to soften.

Solution: Reduce heating time.

2, Pitting

If the heating time is too long, pitting will be occurred on the lower surface of the glass. The pitting can be divided into two types.

one is dense and orange peel, which is caused by excessive heating time.

Solution: Adjust the heating time appropriately

The other is a star-shaped pitting, which is caused by the surface of the upper stage and the ceramic roll being unclean, or the glass fragments of the winder roll are not cleaned.

Solution: Clean the tempering machine and keep it.

3, White haze

The white haze is in the middle of the lower surface of the glass, and a white trace appears. It usually appears in the first few furnaces of the initial production, which is caused by the excessive surface temperature of the ceramic roller.

Solution: the temperature& power should be set lower for the furnace’s below part when start working. In addition, it must be continuously produced, running with glass, or the heating switch can be turned off.