You typically want to avoid adding any extra Oxygen, as molten aluminum can react with oxygen gas to produce aluminum Oxide more readily. You'll turn your melt into a slag factory!
It's a good question that caused me to go searching for an answer. Hydrogen diffuses into inert gas bubbles as they rise through the melt. There's no suggestion that ammonia is produced.
@@davidkeenan5989 I'm guessing that the bubble forms an interface inside of which the partial pressure of H2 is zero; enough bubbles and the hydrogen will eventually be depleted from the metal melt.
Very helpful, very educational and very easy to understand in your video! 👌👌
Nice video, but it should also underline the oxide bifilms and inclusions removal from the rotary degassing and fluxing.
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Would the same results be obtained with air (nitrogen + oxygen) instead of pure nitrogen?
You typically want to avoid adding any extra Oxygen, as molten aluminum can react with oxygen gas to produce aluminum Oxide more readily. You'll turn your melt into a slag factory!
Definitely not. Because aluminium highly reactive with oxygen. It can creat aluminium oxide
Nice
Please explain what is happening when nitrogen comes in contact with hydrogen. Does it form ammonia?
It's a good question that caused me to go searching for an answer.
Hydrogen diffuses into inert gas bubbles as they rise through the melt. There's no suggestion that ammonia is produced.
@@davidkeenan5989 I'm guessing that the bubble forms an interface inside of which the partial pressure of H2 is zero; enough bubbles and the hydrogen will eventually be depleted from the metal melt.