利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN109706284A 一种基于CSP薄板坯连铸机生产超低碳IF钢的方法 无效 - 撤回

一种基于CSP薄板坯连铸机生产超低碳IF钢的方法
摘要：
本发明涉及一种基于CSP薄板坯连铸机生产超低碳IF钢的方法，包括高炉冶炼、铁水脱硫、转炉冶炼、LF精炼、RH真空处理和CSP薄板坯连铸连轧工序，所述CSP薄板坯连铸连轧工序中，连铸中间包钢水温度为1550-1580℃，中间包钢水化学成分的质量百分比为：C≤0.003%、Si≤0.01%、Mn：0.08-0.14%、P≤0.015%、S≤0.012%、Als：0.020-0.050%、Ti：0.065-0.075%、N≤0.0030%。本发明结合CSP薄板坯连铸连轧连铸机的设备特点，自主设计超低碳IF钢水的化学成分，严格控制各工序工艺参数，以短流程、低成本工艺成功、稳定生产高品质超低碳IF钢，极大降低了企业生产成本，提高了产品市场竞争力。
摘要（英）：

The invention relates to a method for producing ultra-low carbon IF steel based on a CSP thin slab continuous casting machine. The method comprises the procedures of blast furnace smelting, molten iron desulfurization, converter smelting, LF refining, RH vacuum treatment and CSP thin slab continuous casting and rolling; and in the CSP thin slab continuous casting and rolling procedure, the continuous casting tundish molten steel temperature is 1550 to 1580 DEG C, tundish molten steel comprises, by mass, less than or equal to 0.003% of C, less than or equal to 0.01% of Si, 0.08-0.14% of Mn, less than or equal to 0.015% of P, less than or equal to 0.012% of S, 0.020-0.050% of Als, 0.065-0.075% of Ti and less than or equal to 0.0030% of N. In combination with the equipment characteristics ofthe CSP thin slab continuous rolling and casting machine, the chemical compositions of the ultra-low carbon IF steel are independently designed, the process parameters of all the procedures are strictly controlled, high-quality ultra-low carbon IF steel is successfully and stably produced with a short process and a low-cost process, the production cost of enterprises is greatly reduced, and the product market competitiveness is improved.

0/0