Continuous casting method for preventing head warping of high alloy steel casting blank

• Main Authors: ZHANG ZHAOZHEN, ZHENG LIRONG, HUANG ZHIXIN, ZHONG YAOTING, LIANG SHAOLIANG, WEI XIANGJIAN, YIN LIANGZHI, ZENG LINGYU, LIU CHENSHENG, LIN DANQUN, HUANG CAIFU, GAO XINJUN, ZENG ZHIXIAN, WANG YANG, ZHANG JILIE, ZHANG JIAQI
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2023
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING

The invention discloses a continuous casting method for preventing a high-alloy steel casting blank from warping, and belongs to the technical field of metallurgy. The continuous casting method for preventing the high-alloy steel casting blank from warping comprises the steps that a dummy bar head is fed into an opening of a crystallizer, tundish molten steel is injected into the crystallizer, and when the liquid level of high-alloy molten steel reaches the specified height, a dummy bar is pulled down; high pressure is adopted in the dummy ingot pulling process, when a dummy ingot rod drives the head blank to pass through the first withdrawal and straightening machine and then is converted into low pressure so as to reduce the bonding resistance between the head blank and the withdrawal and straightening machine, and the water flow of a crystallizer and the starting pulling speed are increased in the billet pulling process so as to shorten the time for adjusting the starting pulling speed to the target pullin