Re vamping of 240 mm×240 mm Bloom Concaster for High Efficiency at Xiangtan Iron and Steel

杨建华

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Re vamping of 240 mm×240 mm Bloom Concaster for High Efficiency at Xiangtan Iron and Steel

更新时间：2026-01-21

- Re vamping of 240 mm×240 mm Bloom Concaster for High Efficiency at Xiangtan Iron and Steel
- Special Steel Vol. 26, Issue 1, Pages: 49-51(2005)
- 作者机构：
  
  湘潭钢铁集团有限公司第二炼钢厂,湘潭,411101
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：16 July 2004，
  
  Online First：24 May 2023，
  
  Published：24 May 2005
- 稿件说明：
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杨建华. Re vamping of 240 mm×240 mm Bloom Concaster for High Efficiency at Xiangtan Iron and Steel[J]. Special Steel, 2005, 26(1): 49-51.
DOI：

杨建华. Re vamping of 240 mm×240 mm Bloom Concaster for High Efficiency at Xiangtan Iron and Steel[J]. Special Steel, 2005, 26(1): 49-51. DOI：

摘要

通过增加结晶器长度、一次冷却水流量

采用二冷动态配水、结晶器液面自动控制和结晶器电磁搅拌等改造措施

湘钢 240mm× 240mm方坯连铸机小时产量由 64.73t提高到 84.67t

拉速由 0.5～ 0./8m min提高到 10～ 11m /min

生产的钢种为 20管坯钢、45钢、中低压锅炉管用钢、40Cr、20Cr等。 20管坯最大合格率由 2 0 0 2年的～ 6 0 %提高到 2003年的 80 %。

Abstract

By revamping to increase mould length and first cooling water flow rate

use active supply secondary water

automatic control of mould liquid level and mould electromagnetic stirring

the output per hour of 240 mm×240 mm concasting bloom increased to 84.67 t from original 64.73 t and casting speed increased to 1.0～1.1 m/min from 0.5～0.8 m/min. The casting steel grades were 0.2C steel bloom for tube

0.45C steel

steel for medium and low-pressure boiler tube

steel 40Cr and steel 20Cr etc. The maximum percentage up to standard for 0.20C steel casting bloom for tube in- creased to 80% in 2003 from 60% in 2002.

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