Centrifugal casting furnace tube and preparation technology thereof

• Main Authors: ZHANG BAOSEN, BA ZHIXIN, MA LIFENG, MAO XIANGYANG, ZHANG XIAOBO, JU JIA, ZHAN YIBIN, WANG ZHANGZHONG, LI DONG
• Format: Patent
• Language: Chinese; English
• Published: 07.09.2016
• Subjects: ALLOYS; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; METALLURGY OF IRON; PERFORMING OPERATIONS; POWDER METALLURGY; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a centrifugal casting furnace tube and a preparation technology thereof. The preparation technology comprises the following steps: taking steel scrap, ferromanganese and ferrosilicon, ferrochromium, pure nickel, ferromolybdenum and rare earth nickel gadolinium, and nickel cerium intermediate alloy as the raw materials, adopting an aluminium wire for deoxygenation, and deslagging on the liquid level of molten steel to obtain molten-state molten steel; according to the formula N=20*(G/r)<1/2>, calculating the centrifugal rotational speed of a steel tube cavity manufactured through centrifugal casting; when the rotating speed of the steel tube cavity reaches the calculated centrifugal rotational speed, pouring molten steel to the cavity from a steel ladle, and adopting argon during the pouring process to ensure that molten steel is not oxidized, wherein the pouring temperature is 1523-1573 DEG C and the pouring time is about 5-10 minutes; demoulding, cooling a centrifugal steel tube to th