利索-全球专利检索

  1. 登录
  2. 注册
发明授权
CN106119706B 调质型加S易切削模具钢板及其生产方法 有权

调质型加S易切削模具钢板及其生产方法
摘要：
本发明公开了一种调质型加S易切削模具钢板及其生产方法，由以下重量百分含量的化学成分组成：C：0.35%‑0.45%，Si：0.30%‑0.50%，Mn：1.40%‑1.60%，P≤0.030%，S：0.05%‑0.10%，Cr：1.80%‑2.0%，Mo：0.15%‑0.25%，余量为Fe和不可避免的杂质。其生产方法包括冶炼、连铸、加热、轧后水冷、热堆垛、热处理和堆垛缓冷。本发明通过加入一定含量的硫和锰来改善钢的易切削性能，碳、锰固溶强化，加入少量的Cr细化晶粒，其弥散强化作用，增加钢板硬度；以及后续合理的调质热处理工艺，提高钢板整板的硬度均匀性、易切削性能、焊接性能和耐磨性能。
摘要（英）：

The invention discloses a quenched and tempered S-added free-cutting die steel plate and a production method thereof. The chemical components of the quenched and tempered S-added free-cutting die steel plate comprise, by weight, 0.35-0.45% of C, 0.30-0.50% of Si, 1.4-1.6% of Mn, 0-0.030% of P, 0.05-0.10% of S, 1.80-2.0% of Cr, 0.15-0.25% of Mo, and the balance Fe and unavoidable impurities. The production method includes the steps of smelting, continuous casting, heating, water cooling after rolling, hot stacking, heat treatment and stacking slow cooling. A certain amount of S and a certain amount of Mn are added so as to improve the free-cutting performance of steel, and C and Mn solution strengthening is achieved; a small quantity of Cr refined grains are added and have a dispersion strengthening function, and thus the hardness of the steel plate is improved; and by means of the subsequent reasonable quenching and tempering heat treatment process, the hardness uniformity, free-cutting performance, welding performance and abrasion resistance of the whole steel plate are improved.

公开/授权文献
0/0