Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production method of novel high-strength wear-resistant bainite steel for frog
The invention discloses a production method of novel high-strength wear-resistant bainite steel for a frog. The steel for the frog comprises the following components in percentage by mass: 0.26-0.35% of C. The method comprises the following steps: S1, heating a steel billet obtained after smelting and casting to 1250-1300 DEG C; s2, the heated steel billet is rolled or forged; s3, the rolled or forged steel for the frog is subjected to heat treatment, and the final cooling temperature of heat treatment ranges from 100 DEG C to 200 DEG C; s4, the steel for the frog cooled to the final cooling temperature through heat treatment is subjected to heat preservation treatment, and the heat preservation treatment time is 3-5 h; and S5, the steel for the frog subjected to heat preservation treatment is tempered. According to the method, the structure can be controlled through heat treatment, the operation safety of the steel rail is improved while the obdurability of the existing online heat treatment bainite steel rail is guaranteed, and the requirements of steel for frogs for heavy haul railways are met.
本发明公开了一种新型高强耐磨贝氏体辙叉用钢的生产方法，辙叉用钢按质量百分比计包含0.26‑0.35％的C。方法包括以下步骤：S1，将冶炼、浇铸后获得的钢坯加热至1250～1300℃；S2，对加热后的钢坯进行轧制或锻造；S3，对轧制或锻造后获得的辙叉用钢进行热处理，所述热处理终冷温度为100～200℃；S4，对热处理冷却至终冷温度的辙叉用钢进行保温处理，所述保温处理时间为3～5h；S5，对保温处理后的辙叉用钢进行回火。本发明的方法能够通过热处理控制组织，在保证现有在线热处理贝氏体钢轨强韧性同时，提高钢轨运行安全性，满足重载铁路用辙叉用钢要求。
Production method of novel high-strength wear-resistant bainite steel for frog
The invention discloses a production method of novel high-strength wear-resistant bainite steel for a frog. The steel for the frog comprises the following components in percentage by mass: 0.26-0.35% of C. The method comprises the following steps: S1, heating a steel billet obtained after smelting and casting to 1250-1300 DEG C; s2, the heated steel billet is rolled or forged; s3, the rolled or forged steel for the frog is subjected to heat treatment, and the final cooling temperature of heat treatment ranges from 100 DEG C to 200 DEG C; s4, the steel for the frog cooled to the final cooling temperature through heat treatment is subjected to heat preservation treatment, and the heat preservation treatment time is 3-5 h; and S5, the steel for the frog subjected to heat preservation treatment is tempered. According to the method, the structure can be controlled through heat treatment, the operation safety of the steel rail is improved while the obdurability of the existing online heat treatment bainite steel rail is guaranteed, and the requirements of steel for frogs for heavy haul railways are met.
本发明公开了一种新型高强耐磨贝氏体辙叉用钢的生产方法，辙叉用钢按质量百分比计包含0.26‑0.35％的C。方法包括以下步骤：S1，将冶炼、浇铸后获得的钢坯加热至1250～1300℃；S2，对加热后的钢坯进行轧制或锻造；S3，对轧制或锻造后获得的辙叉用钢进行热处理，所述热处理终冷温度为100～200℃；S4，对热处理冷却至终冷温度的辙叉用钢进行保温处理，所述保温处理时间为3～5h；S5，对保温处理后的辙叉用钢进行回火。本发明的方法能够通过热处理控制组织，在保证现有在线热处理贝氏体钢轨强韧性同时，提高钢轨运行安全性，满足重载铁路用辙叉用钢要求。
Production method of novel high-strength wear-resistant bainite steel for frog
新型高强耐磨贝氏体辙叉用钢的生产方法
YUAN JUN (Autor:in) / HAN ZHENYU (Autor:in) / DENG YONG (Autor:in) / LI RUOXI (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
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