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发明公开
CN106244926A 一种含钒汽车传动轴用钢及其生产方法 无效 - 撤回

一种含钒汽车传动轴用钢及其生产方法
摘要：
本发明公开了一种含钒汽车传动轴用钢及其生产方法，含钒汽车传动轴用钢化学成分的质量百分比为C≤0.14%，Si≤0.40%，Mn：0.80～1.40%，P≤0.035%，S≤0.025%，V：0.010～0.080%，Ti≤0.06%，Als：0.015～0.060%，余量为Fe及不可避免的杂质元素。生产方法包括转炉冶炼，LF精炼，板坯连铸，板坯加热，高压水除鳞，控制轧制及控制冷却工序。本发明所生产热轧卷板，添加了V强化元素，得到了强度高、韧塑性好的含钒汽车传动轴用钢板，其抗拉强度达420～580MPa，屈服强度≥360MPa，延伸率≥26%，并实现工业化生产。
摘要（英）：

The invention discloses a vanadium-containing automobile transmission shaft steel and a production method thereof. The vanadium-containing automobile transmission shaft steel is prepared from the following chemical components by mass percentage: less than or equal to 0.14% of C, less than or equal to 0.40% of Si, 0.80 to 1.40% of Mn, less than or equal to 0.035% of P, less than or equal to 0.025% of S, 0.010 to 0.080% of V, less than or equal to 0.06% of Ti, 0.015 to 0.060% of Als, and the balance of Fe and inevitable impurity elements. The production method comprises the following steps: converter smelting, LF (Ladle Furnace) refining, slab continuous casting, slab heating, high pressure water descaling, controlled rolling and controlled cooling processes. The hot rolled coil produced by the invention is added with a V strengthening element to obtain the vanadium-containing automobile transmission shaft steel plate with high strength and good ductility, 420-580MPa of tensile strength, more than or equal to 360MPa of yield strength, and more than or equal to 26 % of elongation, and the industrial production is realized.

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