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Production method of vanadium microalloyed bainite steel for frog
The invention discloses a production method of vanadium microalloyed bainite steel for frogs, the steel for the frogs comprises, by mass, 0.03-0.15% of V and 40-120 ppm of N. The method comprises the following steps that S1, a steel billet obtained after smelting and casting is heated; s2, the heated steel billet is rolled or forged to obtain the frog; s3, the frog obtained after rolling or forging is cooled, the initial cooling temperature ranges from 740 DEG C to 820 DEG C, and the final cooling temperature ranges from 200 DEG C to 400 DEG C; and S4, the cooled frog is subjected to tempering. The performance of the bainite frog can be improved through vanadium-nitrogen microalloying.
本发明公开了一种钒微合金化贝氏体辙叉用钢的生产方法，所述辙叉用钢按质量百分比计包含0.03～0.15％的V以及40～120ppm的N，所述方法包括以下步骤：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，对轧制或锻造后获得的辙叉进行冷却，其中开冷温度为740～820℃，终冷温度为200～400℃；S4，对冷却后的辙叉进行回火。本发明能够通过钒氮微合金化提高贝氏体辙叉性能。
Production method of vanadium microalloyed bainite steel for frog
The invention discloses a production method of vanadium microalloyed bainite steel for frogs, the steel for the frogs comprises, by mass, 0.03-0.15% of V and 40-120 ppm of N. The method comprises the following steps that S1, a steel billet obtained after smelting and casting is heated; s2, the heated steel billet is rolled or forged to obtain the frog; s3, the frog obtained after rolling or forging is cooled, the initial cooling temperature ranges from 740 DEG C to 820 DEG C, and the final cooling temperature ranges from 200 DEG C to 400 DEG C; and S4, the cooled frog is subjected to tempering. The performance of the bainite frog can be improved through vanadium-nitrogen microalloying.
本发明公开了一种钒微合金化贝氏体辙叉用钢的生产方法，所述辙叉用钢按质量百分比计包含0.03～0.15％的V以及40～120ppm的N，所述方法包括以下步骤：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，对轧制或锻造后获得的辙叉进行冷却，其中开冷温度为740～820℃，终冷温度为200～400℃；S4，对冷却后的辙叉进行回火。本发明能够通过钒氮微合金化提高贝氏体辙叉性能。
Production method of vanadium microalloyed bainite steel for frog
钒微合金化贝氏体辙叉用钢的生产方法
YUAN JUN (author) / HAN ZHENYU (author) / DENG YONG (author) / YANG DAWEI (author)
2023-04-28
Patent
Electronic Resource
Chinese
IPC:
C21D
Veränderung der physikalischen Struktur von Eisenmetallen
,
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
/
B21H
MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
,
Herstellen besonderer Gegenstände aus Metall durch Walzen, z.B. Schrauben, Räder, Ringe, Büchsen, Kugeln
/
B21J
FORGING
,
Schmieden
/
B21K
MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
,
Herstellen von Schmiede- oder Presserzeugnissen aus Metall, z.B. Hufeisen, Nieten, Bolzen oder Rädern
/
C22C
Legierungen
,
ALLOYS
/
E01B
PERMANENT WAY
,
Gleisoberbau
| British Library Online Contents | 2016
| British Library Online Contents | 2016
Production method of novel high-strength wear-resistant bainite steel for frog
| European Patent Office | 2023