Research Progress in Key Technologies of Twin-Roll Strip Casting for Industrialization

doi:10.12068/j.issn.1005-3026.2025.20250060

Abstract

Abstract:

As an important integrated casting-rolling short-process technology in the field of materials and metallurgy， twin-roll strip casting has significant application value in the preparation of thin-gauge strip steel， special steels， and special alloys. Addressing the complex theoretical and technical challenges of multi-element， multi-phase， multi-variable， and strongly coupled high-temperature melt flow and heat transfer during the twin-roll strip casting process， this paper reviews the research progress on key technologies， process control strategies， and product-related technologies. Based on theoretical research and technological development practices， it highlights the independent innovative achievements and technical applications in high-temperature melt distribution， casting roller cooling， side sealing technology， and casting-rolling process control. Finally， it points out the theoretical and technical issues that require further study to promote the application of this technology in the research and production of high-end， high-quality steel materials.

Key words: steel, twin-roll strip casting, process technology, control strategy, product technology

CLC Number:

TG 244

Guo YUAN, Chao WANG, Zhen-lei LI, Guo-dong WANG. Research Progress in Key Technologies of Twin-Roll Strip Casting for Industrialization[J]. Journal of Northeastern University(Natural Science), 2025, 46(8): 1-10.

Figures/Tables 9

Fig.1 Schematic diagram of process flow for typical hot rolled strip production line

Table 1 Development status of domestic and foreign twin-roll strip casting production lines

项目	浇铸速度/(m·min^-1)	产品厚度/mm	浇铸钢种	铸辊辊径/mm	发展情况
DSC	≤90	1.6~5	不锈钢	1 200	终止生产
Eurostrip	40~90 ≤150	1.4~3.5	不锈钢	1 500	工业化进程
Postrip	30~130 ≤160	1.6~4	不锈钢	1 200	工业化进程
CASTRIP	40~120	0.7~2.0	碳钢	500	商业化进程
Baostrip	30~130	0.8~3.6	碳钢	800	工业化进程
E²Strip	30~75	1.0~2.2	碳钢、硅钢	500	工业化进程

Fig.2 Schematic diagram of process flow for twin-roll strip casting

Fig.3 Schematic diagram of flow distributor structure and molten pool

Fig.4 Key technology research process of twin-roll strip casting

Fig.5 Influence of flow distribution process on molten pool level fluctuation and solidification characteristics of metal liquid during twin-roll strip casting process

Fig.6 Temperature and thermal deformation characteristics of casting roller based on the nonlinear thermal resistance distribution at the contact interface between the molten pool and the casting roller

Fig.7 Research on the thermal characteristics of side dams based on actual service performance

Fig.8 Twin-roll strip casting production line of

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