Argon is a rare gas that is widely used in industry， Argon is the byproduct of the production of oxygen and/or Nitrogen from Air Separation Plant. It is very inactive in nature and can neither burn nor support combustion. In the sectors of aircraft manufacturing, shipbuilding, atomic energy industry and machinery industry, argon is often kept in liquid argon storage tank or cylinders to be used as welding shielding gas when welding special metals, such as aluminum, magnesium, copper and its alloys, and stainless steel to prevent welding parts from being oxidized or nitrided by air.

High-purity argon gas is mainly used for welding, stainless steel manufacturing, smelting, and also for chemical vapor deposition, crystal growth, thermal oxidation, epitaxy, diffusion, polysilicon, tungsten, ion implantation, current carrying, Argon gas such as sintering is used as a protective gas for the production of single crystal and polycrystalline silicon. In order to improve the quality of silicon crystals, how to choose higher purity argon is an issue in the production of silicon crystals. Through the use of this device, when the purity of argon gas is less than 1ppm and the moisture content is less than 1ppm, the oxygen and carbon content of the produced single crystal silicon is less than 0.5ppm, which improves the service life of the single crystal and can reach Request, win customer satisfaction and market demand. Since liquid argon is generally vaporized without purification treatment, its oxygen content is generally 2ppm to 5ppm. Sometimes the argon gas provided by the gas supplier exceeds this range, but the customer who uses argon does not know its quality, so it often affects the quality of the produced products. With the argon purification device, regardless of the quality of the argon feed gas, the purity of the argon entering the crystal pulling furnace is always constant as long as it is processed by the purification device. Generally, O2<0.2ppm and moisture<1ppm, so stable argon gas can guarantee the quality of the crystals produced.