Unique production and development of welding gas for high quality welding and cutting

　In the field of welding, ELNACKS® shielding gas for steel plate welding boasts the highest market share within Japan. This high-quality, economical gas is produced via a unique production method involving the extraction of a highly pure direct mixture of argon and oxygen obtained from Air Water's cryogenic air separation plants. ELNACKS® can also be combined with a variety of other gases, as dictated by user needs. In addition, Air Water uses argon as a base for AW-Shield Gas, which is a shielding gas for stainless steel and aluminum welding.
　In the field of cutting, Air Water's business revolves around the Aqua Gas Generator used in the production of "aqua gas," which is an oxyhydrogen gas mixture developed by Air Water. Aqua gas is created from hydrogen and oxygen obtained through water electrolysis and mixed with propane and other gases; compared with traditional LPG cutting, aqua gas allows for higher-quality, more rapid cutting as well as reduced energy consumption thanks to the concentrated flame produced from the combustive characteristics of hydrogen. Demand for aqua gas is growing within high-rise building construction, bridge construction and other construction projects that increasingly utilize high-tension steel, specialized steel and other high-strength steel that has traditionally been resistant to gas cutting.

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