利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN106834941A 一种热冲压成形钢及其生产方法 无效 - 撤回

一种热冲压成形钢及其生产方法
摘要：
本发明公开了一种热冲压成形钢及其生产方法，其包括加热、热轧、冷轧、连续退火和平整工序；所述热轧采用的铸坯成分的质量百分含量为C 0.18～0.25%，Mn 1.00～1.50%，Si 0.15～0.40%，P≤0.020%，S≤0.005%，Cr 0.10～0.30%，Ti 0.010～0.050%，Alt 0.020～0.060%，B 15ppm～50ppm，[N]≤40ppm，其余为Fe和不可避免杂质。本方法通过控制热轧、冷轧和连续退火以及平整等工艺参数来生产热冲压成形钢的方法，具有实施难度小，成本较低，生产过程稳定，成品性能优异的特点；可以有效降低生产成本、提高生产效率。采用连续退火工艺生产热冲压成形钢，较罩退工艺生产效率高，节约成本，产品性能稳定。
摘要（英）：

The invention discloses hot stamped steel and a production method thereof. The method comprises the procedures of heating, hot rolling, cold rolling, continuous annealing and leveling. Components of a cast blank adopted for hot rolling comprise, by mass, 0.18-0.25% of C, 1.00-1.50% of Mn, 0.15-0.40% of Si, less than or equal to 0.020% of P, less than or equal to 0.005% of S, 0.10-0.30% of Cr, 0.010-0.050% of Ti, 0.020-0.060% of Alt, 15-50 ppm of B, less than or equal to 40 ppm of [N] and the balance Fe and inevitable impurities. The method for producing the hot stamped steel by controlling process parameters of hot rolling, cold rolling, continuous annealing and leveling has the characteristics of being low in implementation difficulty and cost, stable in production process and excellent in finished product performance, the production cost can be effectively reduced, and the production efficiency is improved. The continuous annealing process is adopted for producing the hot stamped steel, compared with the hood annealing process, the production efficiency is high, the cost is reduced, and the product performance is stable.

0/0