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起重机臂架用高强韧性CS-Q890无缝钢管的研发

Hong WU,Lianggang YI,Faju LIN,Xijiang WANG,Xiaofan TIAN,Yu CHEN

Steel Pipe（2014）

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Abstract
介绍了起重机臂架用高强韧性CS-Q890无缝钢管的特点、生产工艺和质量情况.通过成分优化设计并采用“转炉/电炉冶炼→LF钢包精炼→VD真空精炼→圆坯连铸→φ159 mm三辊限动芯棒连轧管机组/φ180 mmAccu-Roll轧管机组轧制→调质热处理”工艺生产的CS-Q890无缝钢管,不仅可满足高强韧性的匹配,同时还具备良好的焊接性能.该品种的成功开发,减少了国内为开发大型起重机而长期对国外高强韧性无缝钢管的依赖.
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