Reasons for bubbles in float glass:
1) The ultrafine powder content in the siliceous raw material is too high, and the fine particles are too intense in the initial stage of the reaction, and a foam layer is formed around the particles, which is difficult to clarify and forms bubbles.
2) The SiO2 composition in the silicon material fluctuates too much, and the material is not changed in time. Too much SiO2 is introduced, which reduces the solubility of SO3 in the glass and causes the glass to produce bubbles.
3) Toner content is too high, premature decomposition of Glauber's salt causes insufficient clarification and microbubbles.
4) When the content of Glauber's salt is too high, white solid "glauber's salt bubbles" are easily produced in the glass, and the excess Glauber's salt is present in the glass as liquid sodium sulfate.
5) The COD value of the raw material changes too much, that is, the redox property changes greatly, and the dissolved amount of SO3 that easily causes the glass to dissolve changes to cause microbubbles.
The solution to float glass bubbles:
1) Strictly control the composition and ultra-fine powder content of silicon materials, carefully weigh them, and meet process requirements.
2) Strictly control the content of Glauber's salt and carbon powder to ensure its stability.
3) Do a good job in the research and control of the COD value in the raw materials to ensure the stability of the redox properties of the glass.
HHG is a professional glass manufacturer and glass solution provider include range of tempered glass, laminated glass, textured glass and etched glass. With more 20 years development, there are two produce lines of pattern glass,two lines of float glass and one line of restoration glass. our products 80% ship to overseas, All our glass.products are strict quality control and carefully packed in strong wooden case, ensure you receive the finest quality glass safety in time.
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