Toughened Glass 101

Glass tech toughening furnace
  1. Definition:
    • Toughened glass, also known as tempered glass, is a specially treated safety glass.
  2. Manufacturing Process:
    • Step 1: The glass is cut to the desired size.
    • Step 2: It is heated to around 620°C (1,148°F).
    • Step 3: Rapidly cooled, putting the surfaces into compression.
  3. Strength:
    • It is up to 5 times stronger than regular annealed glass.
  4. Safety Features:
    • Breakage Pattern: Crumbles into small, granular pieces.
    • Risk Reduction: Less likely to cause injury compared to regular glass.
  5. Applications:
    • Automobile Windows: Used for its strength and safety.
    • Shower Doors: Chosen for safety in case of breakage.
    • Glass Tables: Ensures strength and reduces injury risk.
    • Building Facades: Provides structural strength and safety.
    • Appliances: Often used in oven doors and microwaves for heat resistance.
  6. Advantages:
    • Durability: Resistant to breakage and thermal stress.
    • Safety: Minimizes injury risk with its unique breakage pattern.
  7. Disadvantages:
    • Cost: Slightly more expensive due to the specialized manufacturing process.
    • Customization: Any alterations, like cutting or drilling, must be done before the tempering process.


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