Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production method of low-stress high-performance steel for frog
The invention discloses a production method of low-stress high-performance steel for frogs, which is characterized by comprising the following steps: S1, heating a steel billet obtained after smelting and casting; s2, the heated steel billet is rolled or forged to obtain the frog; s3, the frog is cooled, specifically, the initial cooling temperature ranges from 800 DEG C to 950 DEG C, the frog is put into water to be cooled for 60 s to 150 s, and when the temperature of the position 5 mm below the surface layer of the frog is cooled to 200 DEG C to 350 DEG C, the frog is put into oil to be continuously cooled to the room temperature; and S4, the cooled frog is subjected to tempering. The internal residual stress of the frog can be reduced, and the mechanical property of the frog is improved.
本发明公开了一种低应力高性能辙叉用钢的生产方法，其特征在于，包括以下步骤：S1，对冶炼、浇铸后获得的钢坯进行加热；S2，对加热后的钢坯进行轧制或锻造以获得辙叉；S3，对辙叉进行冷却，其中，开冷温度为800～950℃，先将辙叉放入水中冷却60～150s，当辙叉表层下5mm处的温度冷却至200～350℃时，再将辙叉放入油中继续冷却至室温；S4，对冷却后的辙叉进行回火。本发明能够减小辙叉内部残余应力，提升辙叉的力学性能。
Production method of low-stress high-performance steel for frog
The invention discloses a production method of low-stress high-performance steel for frogs, which is characterized by comprising the following steps: S1, heating a steel billet obtained after smelting and casting; s2, the heated steel billet is rolled or forged to obtain the frog; s3, the frog is cooled, specifically, the initial cooling temperature ranges from 800 DEG C to 950 DEG C, the frog is put into water to be cooled for 60 s to 150 s, and when the temperature of the position 5 mm below the surface layer of the frog is cooled to 200 DEG C to 350 DEG C, the frog is put into oil to be continuously cooled to the room temperature; and S4, the cooled frog is subjected to tempering. The internal residual stress of the frog can be reduced, and the mechanical property of the frog is improved.
本发明公开了一种低应力高性能辙叉用钢的生产方法，其特征在于，包括以下步骤：S1，对冶炼、浇铸后获得的钢坯进行加热；S2，对加热后的钢坯进行轧制或锻造以获得辙叉；S3，对辙叉进行冷却，其中，开冷温度为800～950℃，先将辙叉放入水中冷却60～150s，当辙叉表层下5mm处的温度冷却至200～350℃时，再将辙叉放入油中继续冷却至室温；S4，对冷却后的辙叉进行回火。本发明能够减小辙叉内部残余应力，提升辙叉的力学性能。
Production method of low-stress high-performance steel for frog
低应力高性能辙叉用钢的生产方法
YUAN JUN (Autor:in) / HAN ZHENYU (Autor:in) / ZHU NINGFANG (Autor:in) / CHEN CHONGMU (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
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