ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2010, Vol. 31 ›› Issue (1): 38-39.

• 工艺技术 • 上一篇    下一篇

连铸机二冷配水对铸坯鼓肚的改善

张磊   

  1. 武汉大西洋连铸设备工程有限责任公司,武汉430023
  • 出版日期:2010-02-01 发布日期:2022-10-25
  • 作者简介:张磊(1981-),男,项目经理,2004年武汉科技大学毕业, 连铸工艺设计和项目工程管理。

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

Zhang Lei   

  1. Wuhan Daxiyang Cast Equipment and Engineering Co Ltd, Wuhan 430023
  • Published:2010-02-01 Online:2022-10-25

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。

关键词: 连铸坯, 二次冷却系统, 夹持段, 鼓肚

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.

Key words: Cast Bloom, Secondary Cooling System, Pinch Roll, Bulging