What is the difference between float glass and ordinary glass in processing technology?
Release time:
Oct 29,2024
There are significant differences between float glass and ordinary glass in processing technology, mainly in the following aspects:
1. production process
Float Glass:
Float process production, which is a continuous, automated production process.
It mainly includes raw material preparation, batch preparation, melting, forming (flat on the surface of molten tin liquid), annealing, cutting and inspection processes.
The float process makes the glass liquid naturally flat on the surface of the tin liquid, forming a flat upper and lower surface, uniform thickness of the glass ribbon.
Ordinary glass:
A number of different production processes may be employed, such as flat glass production processes, calendered glass production processes, blowing processes, etc.
These processes typically involve the steps of mixing, melting, shaping (possibly by calendering, blowing, etc.) and cooling of the raw materials.
The production process of ordinary glass may not be as continuous and automated as float glass, and the forming methods are more diverse.
2. appearance quality
Float Glass:
With extremely high flatness, the surface is flat and smooth, without obvious ripples and bubbles.
High transparency, good optical performance
Ordinary glass:
Appearance quality may vary depending on the production process and raw materials.
Sometimes defects such as ripples and bubbles will appear, which will affect its appearance quality and optical performance.
3. thickness tolerance
Float Glass:
The thickness tolerance is very strict, and the general thickness tolerance is controlled within ± 0.2mm.
Therefore, its thickness is more uniform, suitable for high-precision processing and installation.
Ordinary glass:
The thickness tolerance may be large, resulting in a less uniform thickness.
For some applications requiring high precision may not be suitable.
4. subsequent processing
Float Glass:
Due to its high-quality appearance and performance, float glass is usually easier to achieve high-precision cutting, edging and coating in subsequent processing.
It is suitable for occasions with high requirements on machining accuracy and appearance.
Ordinary glass:
Due to some differences in appearance quality and performance, ordinary glass may require more processing and adjustment in subsequent processing.
Applicable to the processing accuracy and appearance requirements are not high occasions.
In summary, there are significant differences in the processing technology between float glass and ordinary glass, and these differences make float glass have more obvious advantages in appearance quality, thickness tolerance and subsequent processing. Therefore, in practical applications, the appropriate glass type should be selected according to the specific application and requirements.
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