Decoding the production technology of 16-meter jumbo tempered glass: 5 major processes that break through the size limit

"When the 16-meter-high ​​jumbo tempered glass​​ curtain wall of the Beijing Urban Sub-Center Library withstood a load of 12kPa in the wind pressure test, the global architectural community redefined the possibilities of glass. Through five core process breakthroughs, jumbo glass group pushed the size limit of tempered glass from 8 meters to 16 meters - this is not only a technological leap, but also a revolution in architectural aesthetics."

I. Analysis of five breakthrough processes

1. Selection of ultra-white glass original pieces (Southern Glass/Xinyi)

Technical points: Use ultra-white float glass original pieces with an iron content of ≤0.015% to reduce tempered rainbow patterns

Cost-effectiveness: The self-explosion rate is reduced to 0.01%, reducing maintenance costs by 30%

2. CNC hot bending preforming

Parameter comparison table:

Process type Maximum arc length Flatness error

Traditional process 8 meters ±3mm

jumbo glass new process ​​16 meters ±0.8mm

3. Airflow suspension tempering technology

High-pressure airflow in the vertical tempering furnace is used to lift the glass to avoid roller marks

4. Gradient quenching system

32 independent wind grilles are set in the cooling zone, and the temperature difference of 16-meter glass is ≤15℃

Technical parameter table:

Thickness Surface stress U value Transmittance

12mm ≥95MPa 5.8 W/m²K 91%

19mm ≥102MPa 5.6 W/m²K 89%

5. Dynamic monitoring correction

Laser real-time scanning of flatness, automatic adjustment of wind pressure (0.1 second response speed)

II. Real-time shooting of engineering cases

[16-meter jumbo glass installation diagram]

Figure: 16-meter high ​​jumbo tempered glass Single piece hoisting, thickness 19mm, wind pressure resistance 12kPa

​​Cost data (developer's perspective):

Reduce the use of columns by 60%, and reduce the total cost of curtain wall system by 18%

III. Contractor installation standards

▶ Hoisting specifications (key terms)

Vacuum suction cup group load-bearing ratio ≥1:5 (single piece glass weight ≈3.2 tons)

Translation track inclination ≤1.5°

Structural adhesive curing environment: temperature 15-30℃/humidity 40%-70%

​​Contractor tips: Use jumbo tempered glass special EPDM strips (expansion coefficient matching rate 99.6%)

Key keywords: jumbo tempered glass, 16-meter glass (4 times), large-scale glazing.