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发明公开
CN106566992A 950MPa级别高强冷轧捆带钢及其制备方法 无效 - 撤回

950MPa级别高强冷轧捆带钢及其制备方法
摘要：
本发明公开了一种950MPa级别高强冷轧捆带钢及其制备方法，其包括热轧、卷取、冷轧、退火和涂漆工序；所述捆带钢化学成分的质量分含量为：C 0.10%～0.15%，Mn 1.00%～1.20%，Si≤0.10%，S≤0.020%，P≤0.025%，其余为铁和不可避免的杂质。本方法采用C、Mn做为强化元素，同时配合热轧采用超低温轧制和超低温卷曲控制带钢强度和组织，冷轧采用适当压下率，合适的退火和低温涂漆工艺，保证了最终产品的优良性能，通过控制Si元素含量来保证带钢的表面质量。本方法具有生产成本低、表面质量良好、产品性能优良、工艺简单的特点。
摘要（英）：

The invention discloses 950Mpa-grade high-strength cold-rolled strapping steel and a preparation method thereof. The preparation method of the 950Mpa-grade high-strength cold-rolled strapping steel comprises the procedure of hot rolling, the procedure of winding, the procedure of cold rolling, the procedure of annealing and the procedure of painting. The strapping steel comprises, by mass, 0.10%-0.15% of C, 1.00%-1.20% of Mn, no more than 0.10% of Si, no more than 0.020% of S, no more than 0.025% of P, and the balance Fe and inevitable impurities. According to the preparation method, C and Mn are used as reinforcing elements, the strength and structure of the strapping steel are controlled through hot rolling, ultralow-temperature rolling and ultralow-temperature curling in a cooperation mode, the proper reduction rate and proper annealing and low-temperature painting processes are adopted for cold rolling, the excellent performance of final products is guaranteed, and the surface quality of the strapping steel is guaranteed by controlling the Si content. The preparation method has the characteristics that production cost is low, the strapping steel is good in surface quality and excellent in product performance, and the process is simple.

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