1.How is glass produced ?

Almost all glass produced in developed countries is created using the “float process”. The glass composition materials, mainly silica sand, soda ash and limestone, are melted in a furnace and then flowed on to a bath of molten tin. The glass is formed and gradually cools as it moves from the tin bath to an annealing lehr, which is a controlled cooling chamber. This annealed glass moves through a process in the form of a continuous ribbon, which is cut to size and packaged at the final stage.

Annealed glass can be further fabricated in many ways. Coatings of various types can be applied to achieve many visual effects and affect the optical properties. In addition, the glass can be heat-treated to increase its strength and give it safety glazing properties. Glass can be put into an insulating glass unit, meaning two or more pieces of glass are separated by a dry air space to improve the insulating properties.

2.What are the most common types of glass ?

Float glass, also called annealed glass, is the most common type of glass. Float glass can be clear or tinted.

3.Thermal Glass Tempering vs Chemical Strengthening: What’s the difference?

Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.

Glass Solutions for Extreme Environments

Glass is among the world’s most sophisticated materials. Specialty glass can withstand high pressure, extreme heat, and extraordinary environments.

There are two primary methods for strengthening glass: chemical strengthening and thermal tempering. Both of these processes alter the outer surface of the glass, causing it to have a higher compression than the interior glass, which is in a state of tension. Depending upon the specific application, each process offers unique advantages for a material’s final makeup.

Chemical Strengthening

Also known as ion exchange, chemical strengthening treats glass by submerging it in a molten potassium salt bath, causing sodium ions in the glass to be replaced by potassium ions from the bath. The potassium ions, which are larger than the sodium ions, squeeze themselves into the gaps left by the smaller sodium ions when migrating to the potassium solution. The surface of the glass is then in a state of compression while the core is in compensating tension.

The chemical composition of the bath can vary widely, allowing this process to be tailored to the material’s final application.

Chemical strengthening can create a high-performance glass with no notable distortion and a very shallow surface layer of strengthened, alkali-rich material. The added strength of this specialized glass makes it ideal not only for harsh environments but also for high-performance applications in conductors, semiconductors, energy, medicine, and more. Chemical Strengthening can be performed on much thinner glass than heat tempering.

Glass Tempering

Tempered glass undergoes an intense heating process immediately followed by rapid cooling. This extreme temperature shift causes the glass surface and edges to compress, creating an extremely tough outer surface with a tensioned glass core.

When broken, tempered glass breaks into small particles along circular edges, eliminating the risk of dangerous shards. This makes tempered glass an ideal choice for a wide range of applications, including:

  •  Industrial environments
  • Safety glass (windshields, windows, and situations with exposure to projectiles)
  • High-temperature environments and thermal stresses
  • High-pressure applications

From aviation and aerospace to laboratories and industry to household items and fire safety, both chemically strengthened and thermally tempered glass offer countless solutions to daily safety and environmental challenges.

Glass Solutions from SAIDA Glass

No matter the size or demands of your project, SAIDA Glass can help. Our specialists offer ultra-high pressure cold cutting, CNC machining, polishing, drilling, printing, and a host of other manufacturing capabilities to support both our chemical strengthening and thermal tempering services.

4.What shall I provide to get a quotation?

1. The kind of glass you want and its usage scenario.

2. Drawing of the glass.

3. Requirements in details.

4. Order quantity.

5. Others you think necessary.

5. How to order?

1. Contact our sales with detailed requirements/drawings/quantities, or just an idea or a sketch.

2. We check internally to see if it's producible, then provide suggestions and make samples for your approval.

3. Email us your official order, and send deposit.

4. We put the order into mass production schedule, and produce it as per the approved samples.

5. Process balance payment and advise us your opinion on safe delivery.

6. Enjoy.

6.Can I visit your factory? Where is it?

Welcome. Our factories are located in Dongguan China, please let us know when you will come and how many people, we will advise route guidance in details.

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