High Level Material Ferro Silicon Barium

The influence of ferro silicon barium and its rare earth composite alloy on the mechanical properties, casting properties and metallographic structure of lead, arsenic and tin cast iron. Through comparative analysis, it is believed that the inoculation treatment with 0.10% rare earth ferrosilicon and barium-containing ferrosilicon mixed alloy has a better effect on improving the performance of Longyan pig iron.

1.Nitric acid and hydrofluoric acid were used to dissolve the sample, perchloric acid was used to smoke out nitric acid and hydrofluoric acid, and hydrochloric acid was used to dissolve the salts. Ba233.527nm, Fe 259.940nm, Ca 317.933nm, Mn 257.610nm, Cr 267.716nm, Al 394.401nm, Ni231.604nm, Cu 327.396nm, and P 178.284nm were selected as analysis lines. Inductively coupled plasma atomic emission spectrometry (ICP-AES) was used to determine barium, iron, calcium, manganese, chromium, aluminum, nickel, copper, and phosphorus. Thus, a method for the determination of nine elements in ferro silicon barium inoculant, including barium, iron, calcium, manganese, chromium, aluminum, nickel, copper, and phosphorus, was established. The correlation coefficients of the calibration curves of each element were all greater than 0.999 5; the detection limits of each element in the method were 0.000 06%~0.000 69%. According to the experimental method, the relative standard deviation (RSD, n=11) of barium, iron, calcium, manganese, chromium, aluminum, nickel, copper and phosphorus in the standard sample GSB03-1607-2003 was 0.63%~3.4%. The experimental method was used to determine barium, iron, calcium, manganese, chromium, aluminum, nickel, copper and phosphorus in the standard samples GSB03-1607-2003 and YSB14607-2001, and the measured values ​​were basically consistent with the certified values.

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