Wearing Property and Friction Mechanism of Ceramic Side Dams Used in Thin Strip Continuous Casting

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Wearing Property and Friction Mechanism of Ceramic Side Dams Used in Thin Strip Continuous Casting

LIU Meng, SONG Yijie, LIU Jixiong, XU Guotao, CHEN Huasheng

Research and Development Center of Wuhan Iron and Steel (Group) Gorporation

Published:2017-03-13

Abstract

Abstract: In this paper, based on three different kinds of ceramic side dams for thin strip antinuous casting, the friction and wearing property were studied. The effects of friction pressure, temperature and friction time on the friction and wearing property of the ceramic side dam were researched. What’s more, the friction mechanism and wearing mechanism of the ceramic side dam were researched as well. Results show that the ceramic side dam of BN-SiAlON has the best wearing resistance property. while at room temperature, 16 min of friction time and 0.35 MPa of friction pressure, the test friction coefficient is 0.60 and wearing capacity is 272.358 mm³. In addition, when at 400 ℃, 16 min of friction time and 0.18 MPa of friction pressure, the test friction coefficient is 0.70. The friction mechanism of ceramic side dam with the opposite wearing material is mainly the composite wear of adhesion, abrasive and fatigue.

Key words: thin strip continuous casting, ceramic side dam, wearing force, friction coefficient, microstructure

LIU Meng, SONG Yijie, LIU Jixiong, XU Guotao, CHEN Huasheng. Wearing Property and Friction Mechanism of Ceramic Side Dams Used in Thin Strip Continuous Casting[J]. .

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Wearing Property and Friction Mechanism of Ceramic Side Dams Used in Thin Strip Continuous Casting

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