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CN106544483A 一种提高C-Mn钢板抗SSCC性能的热处理方法 无效 - 驳回

一种提高C-Mn钢板抗SSCC性能的热处理方法
摘要：
一种提高C-Mn钢板抗SSCC性能的热处理方法，属于高强钢生产技术领域。通过一次热处理：加热温度Ac3+30～50℃；保温时间2～3T min/mm，空冷及二次热处理：加热温度600～700℃；保温时间2～3T min/mm，之后缓冷，冷却速度100～200℃/h完成；适用于连铸板坯生产的中碳成分容器钢。优点在于：工艺控制稳定，有效保证产品合格率；易于实现、推广。
摘要（英）：

The invention provides a heat treatment method for enhancing anti-SSCC performance of C-Mn steel plate, and belongs to the technical field of high strength steel production. The heat treatment method comprises the steps of a first time heat treatment, air-cooling, a second time heat treatment and slow cooling to finish. In the first time heat treatment, the heating temperature is Ac3+30-50 DEG C, and the temperature maintenance time is 2-3T minute/mm. In the second heat treatment, the heating temperature is 600-700 DEG C, and the temperature maintenance time is 2-3T minute/mm. In the slow cooling, the cooling speed is 100-200 DEG C/hour. The heat treatment method for enhancing anti-SSCC performance of C-Mn steel plate is suitable for the vessel steel with medium carbon content in the continuous casting slab production. The heat treatment method for enhancing anti-SSCC performance of C-Mn steel plate has the advantages of being stable in process control, capable of ensuring the product pass rate, and easy to achieve and popularize.

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