Improved vacuum self-consuming device and vacuum self-consuming smelting method

• Main Authors: WANG XIAONAN, LIU XUEHUI, YU YUNXIANG, CHOU YINGYU, XU LIANYING, QI CHAO, ZHANG LIANSONG, LIU NING, ZHU HONGTAO, YANG LIANG, LI LIANPENG, YANG YUJUN, BI YU, MENG TIANYU, HOU SHAOLIN, HOU ZHIWEN, YU TENG
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2024
• Subjects: CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses an improved vacuum self-consuming device and a vacuum self-consuming smelting method. According to the improved equipment, an electromagnetic induction coil (9) is arranged in a vacuum self-consuming furnace, and a high-temperature-resistant sealing ring (6) is arranged between a transition electrode (7) and a pull rod (3) for sealing to form a helium cooling channel; the temperature difference in the consumable electrode in the arc starting stage and the follow-up smelting stage is reduced, and the height of a head shrinkage cavity area and the height of a lower molten pool unstable area are reduced; in the arc starting stage, the melting speed of the consumable electrode can be increased, and the height of poor solidification quality at the bottom of a cast ingot is reduced; the helium cooling channel adjusts the temperature of the consumable electrode, so that the voltage, the current, the melting speed and the number of molten drops are kept constant, and the arc light and the arc