Titanium Nozzle Durability: How Does it Withstand Extreme Temperatures?

  • Thread starter donaldcat
  • Start date
  • Tags
    Nozzle
In summary, the nozzle does not melt because the flow of gas through the nozzle cools it down, regardless of the high temperatures of the flame. Nozzles made from titanium would not be effective as titanium catches fire at a lower temperature than it melts and burns fiercely in air. Other types of nozzles, such as those made from brass or oxy-hydrogen, are able to cut through materials with higher melting points due to their design and the cooling effect of the gas flow.
  • #1
donaldcat
7
0
Why does the nozzle not melt even when the melting point of titanium at 1668 degree Celcius, and the flame of the flame is up to 3200-3500 degree Celcius.
 
Engineering news on Phys.org
  • #2
Assuming that what is burning coming out of the nozzle is gaseous, the flow of the gas through the nozzle will cool it. (The cooling effect would work with liquid too)

Acetylene torches for example, IIRC, have brass nozzles (with several small holes for the oxygen and acetylene to emerge) and can cut through steel, a much higher melting point material. Oxy-hydrogen torches can cut through reinforced concrete, and concrete is VERY refractory.
 
  • #3
What type of nozzles do you think are made from titanium? Considering it catches fire at a lower temperature than it melts and burns fiercely in air (similar to magnesium, if you have seen that demonstrated in a chemistry lab) that would be a very dumb idea.
 

1. Why does the nozzle not melt?

The nozzle of a scientific instrument, such as a microscope or a spectrometer, is typically made of materials with high melting points, such as stainless steel or tungsten. These materials are chosen specifically because they can withstand high temperatures without melting, which is important for the functioning and longevity of the instrument.

2. What happens if the nozzle does melt?

If the nozzle were to melt, it would become deformed and lose its shape, which could affect the accuracy and precision of the instrument. Additionally, the melted material could potentially contaminate the samples being analyzed, leading to inaccurate results.

3. Can the nozzle withstand extreme temperatures?

The specific melting point of a nozzle depends on the material it is made of. Some materials, like tungsten, have very high melting points and can withstand extreme temperatures. However, even these materials have limits and may eventually melt if exposed to extremely high temperatures for extended periods of time.

4. How is the melting point of a nozzle determined?

The melting point of a nozzle is determined by the properties of the material it is made of. This includes factors such as the molecular structure and bonding, as well as the composition and purity of the material. The melting point can also be affected by external factors, such as pressure and impurities.

5. Are there any techniques used to prevent the nozzle from melting?

Yes, there are several techniques used to prevent the nozzle from melting. These include using materials with high melting points, such as stainless steel or tungsten, and designing the instrument to minimize heat transfer to the nozzle. Cooling systems can also be implemented to help dissipate excess heat and prevent the nozzle from reaching its melting point.

Similar threads

  • Aerospace Engineering
Replies
19
Views
3K
Replies
26
Views
1K
  • Mechanical Engineering
Replies
7
Views
1K
  • Classical Physics
Replies
3
Views
1K
  • Materials and Chemical Engineering
Replies
7
Views
1K
Replies
18
Views
2K
  • High Energy, Nuclear, Particle Physics
Replies
3
Views
1K
  • General Engineering
Replies
2
Views
11K
  • Materials and Chemical Engineering
Replies
19
Views
3K
Replies
42
Views
3K
Back
Top