Practice of Casting Process by Directly Blowing Argon Upward from Argon Station during Steelmaking Production
The SPHC molten steel was selected for carrying out the test of casting process by directly blowing argon upward from the argon station.After that,these measures such as formulat-ing the production organization time reference table and determining the process test flow,adding the element of Mn twice by controlling its amount of addition,determining the weight of adding a section of aluminum wires according to the content of oxygen at the end point,setting the reference temperature drop as 4 ℃/mini for argon blowing from the argon station and carrying out the supple-menting and correcting for the moving-out temperatures of argon from the argon station according to the temperature drop of 0.7 ℃/min were taken.So based on testing of casting 14 tanks of molten steel by casting two times,the tested results demonstrated that the qualified rate of both composi-tions and temperatures was 100％.Finally,the production interval was normal and the casting ma-chine was operating in the stable condition and the cost of testing tanks of molten steel reduced by about 156 thousand yuan.
steelmakingdirectly blowing argon upward from argon stationSPHC steelcon-tent of Mncontent of Alstemperature of molten steel
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维普
