板坯<i>ø</i>230 mm支撑辊周期性热负荷模拟分析

doi:10.13228/j.boyuan.issn1006-9356.20220187

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Abstract Slab support roller is an important part of slab caster, the temperatures of the support roller at the bearing position and roller surface directly determine whether the support roller can operate normally. In order to find out the temperature distribution of each part of roller during the rotation, the heat transfer process of roller during the periodic rotation of slab ø230 mm support roller was simulated. The results show that the temperature of slab ø230 mm support roller reaches a steady state after 1 500 s of continuous casting under the influence of slab radiation, cold water and air heat dissipation. And the temperature of the roller projecting to the middle of semicircle on the air side under the influence of cooling water is about 250 ℃, while the temperature is about 270 ℃ without the influence of cooling water. Under the influence of cooling water, the maximum temperature of the roller projecting to the slab side semicircle is 272.3 ℃, while the temperature is about 290 ℃ without influence of cooling water. By comparing with the measured data, the results show that the calculation model can predict the temperature distribution of roller well and provide theoretical support for the design of continuous casting support roller.

Key words： slab support roller heat transform heat loading temperature distribution

Received: 25 February 2022

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	Articles by authors
	CHANG Hai
	LEI Shao-wu
	QIU Jun-juan
	GENG Ming-shan

Cite this article:

CHANG Hai,LEI Shao-wu,QIU Jun-juan等. Simulation analysis of slab ø230 mm support roller under periodic heat loading[J]. China Metallurgy, 2022, 32(7): 92-97.

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http://www.zgyj.ac.cn/EN/10.13228/j.boyuan.issn1006-9356.20220187 OR http://www.zgyj.ac.cn/EN/Y2022/V32/I7/92

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