0
Why must the tip of a tungsten electrode be hot in GTAW?
Andrelittle378
The tip of the tungsten electrode has to be hot in GTAW because you are trying to weld two pieces of metal together, and that takes a lot of heat.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Why tungsten is not as heating element in iron box?
tungsten has high resistivity and resistance but at a higher temperature it becomes hot and oxidised and melted so we can't use tungsten as heating coil
Why tungsten glows?
tungsten is a poor conductor of electricity,tungsten glows when electrical energy from the energy source is flowing through the conductor of electricity and when electrical energy reach the metal filament(tungsten) the tungsten gets electrical energy and produce heat when it became white-hot and the tungsten glows the glows is called light.
When hydrogen is passed over hot tungsten oxide?
W+h2o
What is a filament that glows white hot in electric light bulbs?
Tungsten :)
What is the filament that glows white hot in electric light bulbs?
Usually a Tungsten alloy.
Why is tungsten used as a filament in a bulb?
Because it can be heated white hot w/o being consumed.
What is meant by generation?
What is mean by thermionic generation is that electricity is created as a hot electrode will emit electrons onto a cold electrode. Elements like cesium are often used to help bridge the gap and improve the output.
Why electrodes get red hot during welding?
They shouldn't. When using the correct electrode and amperage they will get hot but not red hot. Uncoated electrodes do get red hot but are not used in most applications. Too much amperage is usually the problem.
What is filament of a light bulb?
It's the small coil of very fine tungsten wire that glows white hot.
What is the filament of a light bulb?
It's the small coil of very fine tungsten wire that glows white hot.
What is meant by thermionic generation?
What is mean by thermionic generation is that electricity is created as a hot electrode will emit electrons onto a cold electrode. Elements like cesium are often used to help bridge the gap and improve the output.
What is the chemical equation when hydrogen is passed over hot tungsten oxide?
When Hydrogen Is Passed Over Hot Tubgsten Oxide (WO3) WO3 + 3H2 ----------------> 3H2O + W
