High Level Material Ferro Silicon 65

The commonly used smelting method for ferro-molybdenum production is to use the silicon-aluminum thermal reduction method to reduce molybdenum oxide and mix it with iron to produce ferro-molybdenum. Due to the high silicon content of FeSi75 ferrosilicon, its smelting technology, power consumption and production cost are higher than that of FeSi65 ferrosilicon (converted into the benchmark FeSi75 ferrosilicon).

1.The production method of improving the morphology of ductile iron and graphite, using low-sulfur and low-titanium pig iron, carbon steel and recalcinated iron as the main charge, adding 75 ferrosilicon, ferrosilicon 65, high-carbon ferromanganese, electrolytic copper and graphite-type carburizer; After smelting at a specific frequency in the intermediate frequency furnace, adding nodularizing agent, inoculant, and SiCaMn deoxidizer, the spheroidization process requires a specific tapping position, speed, and tapping step, and the pouring process selects a specific inoculant flow rate and total amount, which can realize the spheroidization of the pearlite matrix, and the graphite of the mixed matrix ductile iron castings reaches nodularization level 2 and above, the nodularization rate reaches 9399%, and the graphite spherical diameter is 7 grades. The processing process of this production method is simple, the reliability is high, and the production cost is low.

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