Most glass tempering furnace manufacturers will likely encounter this phenomenon: white streaks on the finished glass. This happens almost every time. How can this be avoided? Customers will certainly not accept such high-quality glass. Let's learn how to reduce and eliminate this white streak. Tempering furnace manufacturers offer the following analysis:

To produce high-quality glass, attention to detail is essential. You can also refer to the following website: What preparations are required for operating a tempering furnace? This will ensure a more detailed and thorough preparation process.

1. Polish the rollers as smooth and clean as possible before installation.

2. Inject SO2 into the furnace before heating (0.2-0.5 kg pressure for 2-3 minutes).

3. If SO2 gas is unavailable, sulfur powder can be used instead. Specifically: Before heating the furnace, evenly sprinkle 3-5 liang of sulfur powder on the lower radiant plate before heating.

4. Appropriately lower the furnace bottom temperature.

By following these steps, the white streak can be eliminated. For glass that has already produced white stripes, the following method can be used to remedy it: add a small amount of warm water to strontium oxide (also known as polishing powder), and wipe it repeatedly with a hard sponge until the white stripes disappear.