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What type of inert gas is used for the spray method of welding?
oxygen and acetylene gas Argon gas is used in MIG and TIG welding
Most commonly used is argon, but Helium can be used as well.
inert gases are used because they provide inert atmosphere i.e they do not react with the sample in the column. ankur solanki
Neon. Fluorescent tubes contain argon.
argon -------------------------------------------- Any of the elements in column 18 of the periodic table, plus gasses made form some compounds (eg CO2) and some… nonreactive gases such as Nitrogen could be considered as inert.
Argon is used in welding to prevent oxygen from entering the weldsite. Oxygen is basicly bad for the weld and Argon displaces theoxygen which results in a better weld (less he…at stress, less airpockets (imperfections in the weld) etc.)
In most applications Oxygen and Acetylene. Newer gasses have been developed that are cheaper than Acetylene but us old timers still prefer to use it. It produces a slightly hi…gher temperature and can be used to blacken Aluminum. By doing this then heating with a neutral flame the black disappears when the correct preheat temp. is reached. At this point it is also at the correct tempering temp. Weld with a slightly Carburizing flame (less Oxygen than a neutral flame).
Inert gases are use for welding is because in the welding process, the heat will actually hasten up the process of oxidation(rusting) happening on metals. Oxidation process(…rusting) requires oxygen, thus, by using inert gas, it will purge the surrounding of oxygen preventing the oxidation process from happening.
Nitrogen is an unreactive gas, easy to obtain and at reasonable cost. It is not used as an inert gas, but in lieu of an inert gas, of which there are only 6, it is sufficien…t and cost effective.
GASSES - Oxygen and Acetylene. Acetylene is sometimes replaced by a mixture of gasses. The Oxygen increases the burning rate/temperature of Acetylene and temperatures in exces…s of 6,000o F can be reached.
From the factory a lot of SPOT WELDS are used. That I know. Whenever you see a bunch of circles in line, spaced out, and at the joints of two surfaces-thats a spot weld. For d…oing "re-word" or modifying, typically MIG is used for many applications. However, others can be used as well.
The gas is going to depend on what style of welding you are doing. For TIG (tungsten inert gas) it is 100% argon. For heliarc, which is a form of TIG, it is 100% helium.… For MIG (metal inert gas) it is 75% argon/ 25% carbon dioxide. Finally, for gas welding, it acetylene and oxygen--separate tanks. (my son helped on this one)
The tungsteng electrode, because this one not is a filler metal in this process. The individual may be asking what metal can you not weld using the TIG process. In that case c…ast iron, zinc (including zinc coated metals), lead and any metal with a low melting temperature would be the answer.
neon Fluorescent tubes contain argon. You mean INERT gas , and it's neon. Neon is used generally for red lamps; also is more expensive. Common fluorescent lamps are filled wi…th argon.