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By taking sample at the location of NDT defective area of 120mmthickness low alloy steel plate,electrolyzing the bulk sample and making energy spectrum analysis on the inclusions,it is found that the inclusions represented by silicate and alumina are the major origin of inclusions.The inclusions in the steel have been significantly reduced by means of improvement measures like slag system and slag volume adjustment.
By taking sample at the location of NDT defective area of 120mmthickness low alloy steel plate, electrolyzing the bulk sample and making energy spectrum analysis on the inclusions, it is found that the inclusions represented by silicate and alumina are the major origin of inclusions. Inclusions in the steel have been significantly reduced by means of improving measures like slag system and slag volume adjustment.