Improvement of Bloom Bulging by Distribution of Secondary Cooling Water of Caster

张磊

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Improvement of Bloom Bulging by Distribution of Secondary Cooling Water of Caster

更新时间：2026-01-21

- Improvement of Bloom Bulging by Distribution of Secondary Cooling Water of Caster
- Special Steel Vol. 31, Issue 1, Pages: 38-39(2010)
- 作者机构：
  
  武汉大西洋连铸设备工程有限责任公司,武汉,430023
- 作者简介：
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- Online First：25 October 2022，
  
  Published：25 October 2010
- 稿件说明：
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张磊. Improvement of Bloom Bulging by Distribution of Secondary Cooling Water of Caster[J]. Special Steel, 2010, 31(1): 38-39.
DOI：

张磊. Improvement of Bloom Bulging by Distribution of Secondary Cooling Water of Caster[J]. Special Steel, 2010, 31(1): 38-39. DOI：

摘要

部分生产165 mm×280 mm、165 mm×240 mm的R6和R8连铸机

没有二冷夹持段

在提高拉速后铸坯易出现鼓肚现象。通过分析和试验

得出调整和适当增加窄边水量

明显改善了铸坯的鼓肚。通过推导出的坯壳角部最大受力公式

调整凝固系数K值

可防止铸坯各边的变形

以改善铸坯鼓肚现象。

Abstract

Bulging of 165 mm x 280 mm and 165 mm x 240 mm blooms easily occurs for partly R6 and R8 caster without secondary cooling pinch roll section casting as increasing cast speed. Based on analysis and test

it is obtained that with adjusting and increasing water rate at narrow side

the bulging of cast bloom improves obviously. With derived maximum stress formula at comer of bloom and adjusting solidification coefficient K

the deformation of each side of bloom is prevented to improve the bulging phenomena of bloom.

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