亚包晶钢连铸板坯表面纵裂纹的研究
INVESTIGATION ON SURFACE LONGITUDINAL CRACK OF CONTINUOUS CAST SLAB OF SUBPERITECTIC STEEL
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摘要: 针对重钢七厂板坯连铸的实际生产条件,通过现场试验,研究了钢水质量、结晶器液面状况、结晶器保护渣和设备检修等对板坯表面质量的影响。分析了板坯表面缺陷的类型、数量和分布,并提出了控制板坯表面质量的措施。Abstract: Based on practical situation of continuous casting operation at No.7 Plant of Chongqing Iron and Steel Corp., the effects of molten steel quality, mold level, mold powders and equipment maintenance etc.on surface quality of slab were investigated through field test. The type, amount and distribution of surface defects of slab were analyzed.The measures for controlling surface quality of slab were put forward.
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Key words:
- subperitectic steel /
- continuous cast slab /
- surface quality /
- longitudinal crack
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