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Introduction of Argon Gas

Date: Nov 24, 2022

    Argon is a colorless, odorless monatomic gas with a density 1.4 times of air and 10 times of helium. Argon is an inert gas that does not react chemically with other substances at normal temperature, and is insoluble in liquid metals at high temperatures. It has the greatest advantage in welding non-ferrous metals. It can be used for bulb filling and arc welding of stainless steel, magnesium, aluminum, etc., that is, "argon arc welding".

    Argon is a rare gas widely used in industry, and is widely used in aircraft manufacturing, shipbuilding, atomic energy industry and machinery industry. When welding special metals, such as aluminum, magnesium, copper and their alloys, and stainless steel, argon is often used as a welding shielding gas to prevent the welded parts from being oxidized or nitrided by air.

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The chemistry of the argon gas

    Argon is located in the zero group of the periodic table. The outermost layer of the atom has eight electrons, forming a stable structure, and its chemical properties are extremely inactive.Argon does not react with other substances innormal circumstances. However, under special conditions, hydrates can be formed.

    Argon gas does not burn and does not support combustion. It is very stable to any metal at normal temperature, stainless steel, nickel steel, copper, brass, silicon bronze, etc., can be used as metal materials for liquid argon. At normal temperature, argon is very stable to any resin material, polytetrafluoroethylene and polychlorotrifluoroethylene polymers can be used as liner membranes and other materials for argon.

Method of argon

    Intheair gas, argon is more abundant than other noble gases. Therefore, the preparation of argon is based on air, and the basic production method is the same astheoxygen and nitrogen. The air is pressurized and cooled to liquefy it, then evaporated, and the argon is separated by rectification. The preparation of high-purity argon can be obtained by extracting the argon-containing fraction from the air fractionation tower to make crude argon through the argon tower, and then through chemical reaction and physical adsorption to obtain high-purity argon.

Application of argon gas

    High-purity argon is used in lighting technology, filling fluorescent lamps, photoelectric tubes, incandescent lamps, lighting tubes and aircraft manufacturing.

    Argon is used as a shielding gas for arc welding stainless steel, magnesium, aluminum and other alloy iron. Argon is used in the refining and welding technology of rare metals such as zirconium, titanium, tantalum, beryllium, niobium, uranium, thorium, etc., and liquid argon is used in welding and metallurgy. In the production of semiconductor materials and devices, especially in the manufacture of large-scale integrated circuits, the application of high-purity argon plays an important role. Argon is mainly used as diluent gas, carrier gas, shielding gas, and laser mixed gas.

    Affected by supply and demand, the supply of argon gas changes frequently, and the price of argon gas fluctuates greatly. Jinhong can provide argon filling service, and provide corresponding gas valves and gas cylinders according to customer needs.

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