Influence of Controlling Molten Steel Superheat on Technology of Concasting and Quality of Billet

鲁路; 鲁开嶷

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Influence of Controlling Molten Steel Superheat on Technology of Concasting and Quality of Billet

更新时间：2026-01-21

- Influence of Controlling Molten Steel Superheat on Technology of Concasting and Quality of Billet
- Special Steel Vol. 29, Issue 5, Pages: 50-51(2008)
- 作者机构：
  
  西安建筑科技大学冶金工程学院,西安,710055
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：13 March 2008，
  
  Online First：06 January 2023，
  
  Published：06 January 2008
- 稿件说明：
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鲁路, 鲁开嶷. Influence of Controlling Molten Steel Superheat on Technology of Concasting and Quality of Billet[J]. Special Steel, 2008, 29(5): 50-51.
DOI：

鲁路, 鲁开嶷. Influence of Controlling Molten Steel Superheat on Technology of Concasting and Quality of Billet[J]. Special Steel, 2008, 29(5): 50-51. DOI：

摘要

研究了25 t钢包炉和16 t中间包中GCr15、60Si2Mn、40Cr和20钢液的过热度控制。钢液过热度控制主要取决于钢包衬蓄热过程达到平衡状态时钢液温降速率-钢包和中间包钢液温降速率分别为≤1℃/min和≤0.5℃/min;钢液过热度为15～35℃时

200 mm×200 mm铸坯等轴晶率可达20%～30%

连铸拉漏率≤0.23%

铸坯质量良好。

Abstract

The controlling molten steel superheat of GCrl5

60Si2Mn

40Cr and 0.20C steel in 25 t ladle and 16 t tundish has been studied. The controlling of molten steel superheat was mainly depended on temperature decreasing speed of molten steel as the heat storage process of ladle line came to equilibrium state - temperature decreasing speed of molten steel in ladle ≤l ℃/min and that in tundish ≤0.5 ℃/min； as superheat of molten steel was between 15 T and 35 T

the equiaxial crystal ratio in 200 mm x 200 mm billet was up to 20%-30%

the ratio of casting breaking out ≤0.23%

and it was available to get better quality of billet.

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Optimization of Concasting Process for 235 mm x 265 mm Bloom of GCr15 Bearing Steel

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