Investors have put forward: "the PSA Oxygen Generators pure degree is low, can not be refined steel?" The process of smelting in electric furnace steel smelting and steel front are the same, are in electric furnace by arc melting scrap, blowing off and help decarburization, oxygen blowing process is completed in an electric furnace. This procedure need not blowing refining. Join other space provided in the furnace, in order to change the composition of the steel, the steel need to get. Therefore, the electric furnace refining steel and refining steel are essentially the same requirements for oxygen.
PSA oxygen generator can produce more than 93% oxygen, 4% argon, and 1 ~ 3% nitrogen, argon gas is not harmful to steel, the 1 ~ 3% nitrogen containing three special steel for some brands may be caused by nitrogen amount exceed the standard. The state of steel such as marine nitrogen quantity and steel tube wells specified low temperature impact resistance, less than 70ppm, there is no clear definition of "normal state such as the use of steel spring steel, bearing steel, seamless steel pipe, etc. (for ordinary steel more not specified). We are not mixing EAF steelmaking plant low-temperature impact resistance of steel, so the range of PSA oxygen generator smelting steel should be very broad. When you are the enterprise according to the needs of the market to be part of smelting low temperature impact resistant steel, nitrogen amount exceed the standard about the original, can also be prepared for low temperature or low temperature liquid oxygen will change a part of oxygen over, finish the temporary task of smelting.
In fact, most of the steel smelting electric furnace steelmaking factory share more steel according to less attention including the number of steel smelting at the same quality, mainly focus on value-added products, most manufacturers are also developed by a single production, so it has to determine the characteristics of continuous production, this situation by economy of PSA oxygen generator oxygen equipment is particularly prominent.