1.Bubble is common in large flat glass kilns. Use a metal tube or ceramic pavilion to blow out large bubbles from the bottom of the glass melting tank. Large bubbles can take away or eliminate small bubbles during the floating process.
2. Quartz glass melting process using mechanical agitation to help remove the bubbles.
3. When fusing, add 0.3% to 0.5% of clarifying agent, such as antimony trioxide.
4. Control the production process, reduce the secondary bubble generation.
5. Adjust the glass composition, reduce the viscosity of the glass。
6. Extend the glass homoenization time.
7. Select the appropriate raw material status, such as the size of the particle size. Too fine refractory powder is easy to produce a large number of tiny bubbles. But the particle size is too large will cause melting difficulties, such as aluminum oxide particles if too large, if not melting finished, it will produce stones.
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