D6A hot-rolled wide strip steel for thermometal saw blade backing material and production method thereof
A production method and wide-band steel technology, applied in the field of alloy structural steel, can solve the problems of limited production capacity and high energy consumption
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[0050] Example 1: Produced on a 210t-2250mm production line.
[0051] Load 195 tons of molten iron, 25 tons of scrap steel, 2.5 tons of ferro-molybdenum alloy and 1.0 tons of ferronickel alloy into a 210-ton converter, smelting 35 minutes of tapping. The final carbon content of molten steel is 0.11%, and the tapping temperature is 1638℃. Ferrosilicon, ferromanganese, pot iron, and high-carbon ferrochrome are added to deoxidize and alloy the molten steel. The initial molten steel is adjusted in composition and temperature rise through the ladle (LF) refining furnace, leaving the station at 1587℃. The molten steel is treated in a RH vacuum furnace for 37 minutes, and nitrogen is blown in the latter part of the treatment to increase the nitrogen to 0.0131%. The molten steel is poured into a continuous casting slab by a continuous casting machine. The mass percentage of the chemical composition of the continuous casting slab is: C 0.491, Si 0.214, Mn 0.885, P 0.011, S 0.0021, Cr 1.0...
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[0054] Example 2: Produced on a 210t-2250mm production line.
[0055] Load 197 tons of molten iron, 26 tons of scrap steel, 2.6 tons of ferro-molybdenum alloy and 0.9 tons of nickel-iron alloy into a 210-ton converter, smelting for 32 minutes of tapping, with a carbon content of 0.13% at the end of the molten steel, and a tapping temperature of 1,621℃. Add to the molten steel during tapping. Ferrosilicon, ferromanganese, aluminum-iron, and high-carbon ferrochrome deoxidize and alloy molten steel. The initial molten steel is adjusted in composition and temperature rise through the ladle (LF) refining furnace, and exits the station at 1569°C. The molten steel is treated in a RH vacuum furnace for 32 minutes, and nitrogen is blown in the latter part of the treatment to increase the nitrogen to 0.0120%. The molten steel is poured into a continuous casting slab by a continuous casting machine. The mass percentage of the chemical composition of the continuous casting slab is: C 0.502,...
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