Control of Nitrogen Content in Production of Clean Steel in Panzhihua Steel and Vanadium
| Control of Nitrogen Content in Production of Clean Steel in Panzhihua Steel and Vanadium |
| GUO Kai, YANG Sen-xiang |
| （Vanadium Recovery and Steelmaking Plant，Pangang Group Panzhihua Steel and Vanadium Co., Ltd., Panzhihua 617062， Sichuan， China）
|
Abstract：Considering as one of the important direction in the development of steelmaking technology, clean steel has extreme strict requirements on the content of impurity elements in steel. Meanwhile, due to larger ionic radius of nitrogen, low diffusion coefficient in steel and etc, it is difficult that nitrogen is gotten out of steel. In order to achieve the production of clean steel, improvements and research have been carried out, which contain optimizing raw and auxiliary material, converter smelting rules, refining ladle furnace technology, enhancing RH vacuum treatment equipments maintenance and refining continuous casting long nozzle in Vanadium Recovery and Steelmaking Plant of Pangang Group Panzhihua Steel and Vanadium Co.Ltd.,which controled the content of nitrogen efficiently. The Plant achieves the production of tire cord steel, IF steel and steel cylinders etc, and controls the TiN separate out from tire cord steel.
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