- Category
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- Product type
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Category
Glass Furnace - Float Bath
Glass
The float bath, used in the production of flat glass, is a process in which molten glass flows onto the surface of liquid tin (Sn) to create glass sheets with uniform thickness and smooth surfaces.
Zone Configuration and Temperature Range in the Float Bath
| Zone | Temperature Range | Description |
|---|---|---|
| Inlet (High-Temperature Zone) | Approx. 1,100–1,200℃ | Molten glass enters and spreads over the tin surface, subject to the most severe thermal and chemical conditions. |
| Middle (Stabilization Zone) | Approx. 1,000–800℃ | The glass spreads and stabilizes, requiring stable temperatures and ideal forming conditions. |
| Outlet (Cooling Zone) | Approx. 700–600℃ | Solidified flat glass prepares for the next stage of production, such as annealing. |
Examples of Refractory Applications
| Part | Main Refractory Used | Properties |
|---|---|---|
| ①Bottom | High-alumina bricks, chamotte bricks | Anti-flaking properties, low gas permeability, hydrogen diffusion properties |
Quality Table
These data are typical properties subject to reasonable variation and should not be treated as specifications.
Standard product
［Refractory brick］
| Brand | Main raw materials | Chemical composition / ％ | Bulk density | Apparent porosity % |
Cold crushing strength MPa |
Refractoriness under load T2 / ℃ |
Refractoriness SK |
Thermal spalling resistance JIS 1000℃ times-loss％ |
Linear thermal expansion / ％ | Thermal conductivity / W/(m·K) | Application | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SiO₂ | Al₂O₃ | MgO | Fe₂O₃ | TiO₂ | CaO | 1000℃ | 1000℃ | |||||||||
| HT-88H | Fire clay | 56 | 40 | 0.2 | 1 | 1.5 | 0.3 | 2.18 | 20.0 | 35 | 1410 | 34 | 10times-0% | 0.63 | ① | |
| FT-15 | Fire clay | 52 | 44 | 0.2 | 1.3 | 1 | 0.3 | 2.20 | 20.0 | 42 | 1430 | 34 | 10times-0% | 0.60 | ① | |
| NEOTEX-34 | Fire clay | 53 | 43 | 0.2 | 1.5 | 1.3 | 0.3 | 2.20 | 19.0 | 45 | 1420 | 34 | 10times-0% | 0.60 | 1.8 | ① |
Standard product
［Insulating firebrick］
| Brand | Main raw materials | Chemical composition / ％ | Bulk density | Apparent porosity % |
Cold crushing strength MPa |
Refractoriness under load T2 / ℃ |
Refractoriness SK |
Thermal spalling resistance JIS 1000℃ times-loss％ |
Linear thermal expansion / ％ | Thermal conductivity / W/(m·K) | Application | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SiO₂ | Al₂O₃ | MgO | Fe₂O₃ | TiO₂ | CaO | 1000℃ | 1000℃ | |||||||||
| NEOTEX-PX30P | Fire clay | 65 | 28 | 1.5 | 1.60 | 40.0 | 20 | Insulation | ||||||||
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