Production method for direct casting of cold forging steel

The invention discloses a production method for direct casting of cold forging steel. The production method for direct casting of the cold forging steel mainly comprises the steps that the Als content, the aluminum content and the silicon content are controlled in the refining process, the molten st...

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Hauptverfasser: ZHANG ZHAOZHEN, WANG HUANKUN, LUO SHIQING, SUN SHOUDUO, SHAO YUNHUI, HUANG ZHIXIN, WEI XIANGJIAN, WEN YUNTAO, ZENG LINGYU, LIU CHENSHENG, LIN DANQUN, HUANG CAIFU, GAO XINJUN, WANG YANG, WANG GUAN, ZHANG JILIE, WANG WEIZHU
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses a production method for direct casting of cold forging steel. The production method for direct casting of the cold forging steel mainly comprises the steps that the Als content, the aluminum content and the silicon content are controlled in the refining process, the molten steel temperature, the tundish argon blowing flow and the tundish argon blowing time are controlled in the continuous casting process, heat preservation is conducted on molten steel covering in a tundish in the mode that a covering agent and carbonized rice husks are combined, and the molten steel in the tundish is directly cast. And then casting is directly carried out. According to the scheme, other types of steel do not need to be used for molten steel transition of the casting furnace, cold heading steel can be directly adopted for direct casting, transition blanks are avoided, and the production cost is saved. 本发明公开了一种冷镦钢直接开浇的生产方法。本发明提供的冷镦钢直接开浇的生产方法,主要包括:在精炼过程中对Als、铝含量和硅含量进行控制,在连铸过程中对钢水温度、中间包吹氩流量和时间进行控制,以及对中间包内钢