Experimental simulation on the high-temperature friction property of slag in slab continuous casting mold

Sheng Yu; Mujun Long; Peng Liu; Dengfu Chen; Huamei Duan; Jie Yang

Journal of Materials Research and Technology (May 2020)

Experimental simulation on the high-temperature friction property of slag in slab continuous casting mold

Sheng Yu,
Mujun Long,
Peng Liu,
Dengfu Chen,
Huamei Duan,
Jie Yang

Affiliations

Sheng Yu: Laboratory of Metallurgy and Materials, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China; Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing 400044, PR China
Mujun Long: Laboratory of Metallurgy and Materials, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China; Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing 400044, PR China; Corresponding authors.
Peng Liu: Laboratory of Metallurgy and Materials, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China; Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing 400044, PR China
Dengfu Chen: Laboratory of Metallurgy and Materials, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China; Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing 400044, PR China; Corresponding authors.
Huamei Duan: Laboratory of Metallurgy and Materials, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China; Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing 400044, PR China
Jie Yang: Laboratory of Metallurgy and Materials, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China; Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New Materials, Chongqing University, Chongqing 400044, PR China

Journal volume & issue: Vol. 9, no. 3
pp. 6453 – 6463

Abstract

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The lubricating property of mold slag is significant to determine the surface quality of strands. To investigate the friction property of mold slag in the mold, the friction coefficient of the crystalline slag and glassy slag at high temperatures was measured through using a friction and wear testing machine. An edible oil was selected to simulate the lubrication behavior of liquid slag. The results show that during raising temperature from 25 °C, the friction coefficient of slag will increase due to the surface softening. The surface sintering will obviously reduce the friction coefficient of crystalline slag at around 800 °C. The friction coefficient of glassy slag is smaller than that of crystalline slag. The equivalent friction coefficient of liquid slag is below 0.2. The measured friction coefficient can be applied in mathematical models of friction.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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