Metal rod for refining and purifying RH (Rockwell Hardness) molten steel
A metal rod and molten steel technology, applied in the field of metal rods, can solve the problems of difficult processing, silicon increase in molten steel, and difficulty, and achieve the effects of facilitating use, reducing smelting costs, and improving the quality of molten steel
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Embodiment 1
[0022] The specification of the inner core pure calcium rod of the present embodiment: 7.0 35mm, the choice of its diameter is based on the consideration of specific gravity, and it is usually necessary to ensure that the specific gravity of the entire metal rod is not less than 3g / cm3; the choice of its length is based on the consideration of the difficulty of feeding molten steel.
[0023] Outer cladding specifications: 1.5mm thick steel strip sealed.
[0024] The specific gravity of solid pure calcium rod is 4.10g / cm3.
[0025] The use of the above products in the RH process of a steel plant to smelt a certain brand of IF steel is as follows:
[0026] (1) Adjust the position of the RH descending pipe and the feeding pipe so that they correspond to the feeding pipe;
[0027] (2) After the ladle is transported to the RH station, the temperature is measured and sampled. The actual temperature of the molten steel during the smelting process is 10~15°C higher than the norma...
Embodiment 2
[0033] Embodiment 2: the specification of the inner core pure calcium rod of the present embodiment: 6.0 35mm, outer cladding specification: 1.5mm thick steel strip sealed, filled with iron powder with a thickness of 0.5mm between the outer cladding and the inner core, the specific gravity of the solid core pure calcium rod is 4.85g / cm3.
[0034] The use of the above products in the RH process of a steel plant to smelt a certain brand of IF steel is as follows:
[0035] (1) Adjust the position of the RH descending pipe and the feeding pipe so that they correspond to the feeding pipe;
[0036] (2) After the ladle is transported to the RH station, the temperature is measured and sampled. The actual temperature of the molten steel during the smelting process is 10~15°C higher than the normal production temperature, and the composition is adjusted. After the deoxidation alloying is completed, and when the vacuum degree of the vacuum chamber is 65~300Pa , the product of this em...
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