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Why is argon used as a shielding gas in some types of high temperature welding?
Wiki User
∙ 11y ago
Argon is an inert gas, hydrogen is not. Hydrogen is flammable and would negatively impact the arc process.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoUnlike nitrogen, which is inert only in a normal temperature range, argon is inert even at very high temperatures. It will not burn.
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What effect the wind velocity has on the weld?
All types of welding rely on some form of protection to keep the weld puddle from oxidizing. Molten metal has an afinity to oxygen. Some processes use an inert gas ( ie:GTAW GMAW) the G, being Gas, is usually argon,helium, or CO2. SMAW (stick welding) S being Shielded, uses both slag and smoke to protect the molten puddle. Therefore it stands to reason if the wind is strong enough to blow away the smoke or inert gas then oxygen contained in the air can attack and destroy the weld.
What is argon natural state?
Argon is a chemical element with symbol Ar and atomic number 18. It is in group 18 (noble gases) of the periodic table. Argon is the third most common gas in the Earth's atmosphere, at 0.93% (9,300 ppm), making it approximately 23.8 times as abundant as next most common atmospheric gas, carbon dioxide (390 ppm), and more than 500 times as abundant as the next most common noble gas, neon (18 ppm). Nearly all of this argon is radiogenic argon-40 derived from the decay of potassium-40 in the Earth's crust. In the universe, argon-36 is by far the most common argon isotope, being the preferred argon isotope produced by stellar nucleosynthesis in supernovas.The name "argon" is derived from the Greek word αργον meaning "lazy" or "the inactive one", a reference to the fact that the element undergoes almost no chemical reactions. The complete octet (eight electrons) in the outer atomic shell makes argon stable and resistant to bonding with other elements. Its triple point temperature of 83.8058 K is a defining fixed point in the International Temperature Scale of 1990.Argon is produced industrially by the fractional distillation of liquid air. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily non-reactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Argon gas also has uses in incandescent and fluorescent lighting, and other types of gas discharge tubes. Argon makes a distinctive blue-green gas laser.
How would the world be without the elements Argon?
There would be many foggy multipane windows and light bulbs would implode much more often.
What are the various types of temperature recorded?
Probably in Death Valley, California
What types of stimuli do some protists respond to?
chemicals, light, temperature
What are some uses of argon?
Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily non-reactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Argon gas also has uses in incandescent and fluorescent lighting, and other types of gas discharge tubes.
Can there be problems using argon in welding?
Ignoring all the normal problems you could have in welding (see other answers) - Argon welding has specific concerns that you normally do not find in other types of welding. Never weld in an enclosed area (without air movement) Argon is a 'heavy' gas that displaces oxygen, if you were to weld with argon above a depression (tank, pit, pipe) the area below could become filled with Argon and entry could cause suffocation and or death. A small space can fill with argon quickly, and a air tight space can fill without detection. Also argon as a compressed gas can cause burns if the line is ruptured (-302F).
Can you weld mild steel without argon just CO2?
Yes, it is possible to weld mild steel using only CO2 gas as the shielding gas. CO2 can provide sufficient protection to prevent oxidation during the welding process. However, the quality of the weld may be lower compared to using a mixture of CO2 and argon, which can provide better weld bead appearance and reduced spatter.
What are types of welding machines?
2 basic types, Gas shielding, and flux shielding. Gas shielding comes from compressed tanks of inert gas such as argon. these gases are pumped through the welding hose and over the weld pool. The flux type protects the weld by covering it in a layer of slag that prevent it from being contaminated by the surrounding air.
Gas used in different types of welding would include what?
Gasses used in welding can include oxygen, acetylene, argon, helium, hydrogen, propane, MAPP gas, and others for special purposes. They may be grouped as oxidizers, fuels and shield gasses.
What effect the wind velocity has on the weld?
All types of welding rely on some form of protection to keep the weld puddle from oxidizing. Molten metal has an afinity to oxygen. Some processes use an inert gas ( ie:GTAW GMAW) the G, being Gas, is usually argon,helium, or CO2. SMAW (stick welding) S being Shielded, uses both slag and smoke to protect the molten puddle. Therefore it stands to reason if the wind is strong enough to blow away the smoke or inert gas then oxygen contained in the air can attack and destroy the weld.
What is argon natural state?
Argon is a chemical element with symbol Ar and atomic number 18. It is in group 18 (noble gases) of the periodic table. Argon is the third most common gas in the Earth's atmosphere, at 0.93% (9,300 ppm), making it approximately 23.8 times as abundant as next most common atmospheric gas, carbon dioxide (390 ppm), and more than 500 times as abundant as the next most common noble gas, neon (18 ppm). Nearly all of this argon is radiogenic argon-40 derived from the decay of potassium-40 in the Earth's crust. In the universe, argon-36 is by far the most common argon isotope, being the preferred argon isotope produced by stellar nucleosynthesis in supernovas.The name "argon" is derived from the Greek word αργον meaning "lazy" or "the inactive one", a reference to the fact that the element undergoes almost no chemical reactions. The complete octet (eight electrons) in the outer atomic shell makes argon stable and resistant to bonding with other elements. Its triple point temperature of 83.8058 K is a defining fixed point in the International Temperature Scale of 1990.Argon is produced industrially by the fractional distillation of liquid air. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily non-reactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Argon gas also has uses in incandescent and fluorescent lighting, and other types of gas discharge tubes. Argon makes a distinctive blue-green gas laser.
What is Argon gas used for?
Argon fluorohydride, HArF, was first synthesized in Finland in 2000. Other than research, it has no known industrial or commercial uses. HArF is one of those unique compounds in which an "inert" element (argon) can form a true covalent bond with other elements.
MIG welding compared to flux core welding?
Flux core is a type of MIG welding.... please kind of know what your talking about before you ask a question.... Gas assisted solid mig wire welding is neater and cleaner. There are two types of flux core mig welding that you are talking about. 1. Gasless flux core mig wire 2. Shielded flux cored welding wire, uses a shielding gas as well. Most likely you are talking about the gasless mig wire. look here for more info: www.learn-how-to-weld.com/gasless-mig-wire.html
What are the 5 different types of welding?
There are far more than 5 types or processes of welding. Currently the American Welding Society (AWS) states that there are more than 80 different welding and joining processes. However, some of the common welding processes include shielded metal arc welding (SMAW), gas metal arc welding (GMAW), gas tungsten arc welding (GTAW), flux cored arc welding (FCAW), and oxyfuel gas welding (OFW).
What is the difference of efw and erw?
EFW: Electric Fusion Welding is a more general term which includes Electric resistance welding (ERW) and other types of welding such as Arc welding.
What is pressure welding?
In Pressure Welding the parts(work pieces) to be joined are heated only up to the plastic state and then fusedtogether by applying the external pressure.the two different types of pressure welding are:forge welding and resistance welding
