Why does car glass "blow"?

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  Nickel in glass production equipment

  
  


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  The raw materials contain trace amounts of nickel and sulfur

  
  


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  Sulfur-containing fuel used

  
  

Nickel sulfide crystals will undergo a phase transition when they reach 379°C.
At low temperatures, the volume of nickel sulfide crystals will expand by about 2% to 4%, destroying the internal stress balance of the tempered glass and burying the hidden danger of self-explosion
.

Functional glass

Ordinary tempered glass can realize functions such as antenna, heating or insulation from external heat after treatment
.

1.
Car glass with integrated antenna and heating wire

After the antenna is printed with conductive metal paint on the inner surface of the laminated glass, the paint and the glass are integrated through sintering
.
And then it is connected to the car after the signal amplifier, may be received FM / AM, TV signal, GPS signal or the like via a wire
.
Compared with the point antenna on the previous car, its horizontal structure can make its ability to receive signals more stable and reliable
.

At the same time, it can also be energized and heated to achieve the effect of defrosting and defogging, ensuring a clear vision when driving in cold weather
.

2.
Thermal insulation glass

After coating very fine metal powder in the middle of the laminated glass, because the solar energy can be absorbed and reflected by the metal particles, it can achieve the effect of heat insulation and cooling
.
This type of technology has been applied to many high-end cars .

"Explosion-proof guards" in the automotive glass industry——

VANTA handheld XRF analyzer family

How does VANTA handheld XRF analyzer provide mature scientific solutions for the automotive glass industry?

The analyzer emits X-rays.
After the X-rays hit the surface of the sample to be tested, the surface of the sample emits fluorescence
.
After the detector receives the fluorescence, it can analyze the chemical elements and components contained in the sample
.
In addition, based on the collected fluorescence, the analyzer can also distinguish the thickness of the coating in the range of 0-60 microns
.

Using VANTA handheld XRF analyzer, automotive glass manufacturers can obtain the following benefits:

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  Quickly detect the content of nickel (Ni) in the original film, to ensure that the original film does not contain nickel sulfide impurities, and to prevent the self-explosion of the tempered glass when the user uses it
  .
  

  
  

  
  

  
  


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  Quickly detect the thickness and uniformity of the metal coating in the laminated glass, as well as its chemical composition, to ensure that the finished product meets the design requirements
  .
  

  
  

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