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Application Technology of the Mould for Baosteel Slab Continuous Casting
Author(s): 
Pages: 59-62
Year: Issue:  4
Journal: BAOSTEEL TECHNOLOGY

Keyword:  结晶器连铸坯镀层裂纹;
Abstract: 分析发现,结晶器单Ni镀层硬度低,新镀层铜板初次使用容易引起开浇漏钢,使用Co-Ni镀层后,黏结和开浇漏钢得到明显控制;结晶器缓冷有利于改善铸坯纵裂,通过减少铜板水槽深度,提高铜板表面温度,纵裂纹发生率从0.065%降到0.007 9%;不同材质镀层的硬度、耐磨性、热膨胀系数等性能差异较大,采用Co:Ni=1:9的镀层可以提高耐磨性,防止剥落,镀层一次使用寿命可以达到2 500-3 000炉.宝钢通过减少结晶器周边设备故障,提高操作水平,结晶器铜板综合使用寿命由200~300炉提高到400~500炉.
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