| 连铸坯微裂纹对钢管质量的影响 |
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| 引用本文： | 张才安 莫礼隆. 连铸坯微裂纹对钢管质量的影响[J]. 钢管, 1992, 0(2): 39-44 |
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| 作者姓名： | 张才安 莫礼隆 |
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| 作者单位： | 重庆大学,成都无缝钢管厂,成都无缝钢管厂,成都无缝钢管厂 |
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| 摘 要： | 研究了连铸坯微裂纹在二辊斜轧穿孔和二辊冷轧过程中的变化。实验表明,微裂纹不能焊合,只能扩大;连铸坯的纵裂和中心裂纹导致钢管内折和外折缺陷;连铸坯横裂冷变形后衍变成人字形裂纹。
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| 关 键 词： | 水平连铸管坯 斜轧穿孔 冷轧 微裂纹 变化 |
EFFECTS OF SLIGHT CC BILLET CRACKS ON STEEL PIPE QUALITY |
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| Zhang Caian. EFFECTS OF SLIGHT CC BILLET CRACKS ON STEEL PIPE QUALITY[J]. Steel Pipe, 1992, 0(2): 39-44 |
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| Authors: | Zhang Caian |
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| Affiliation: | Zhang Caian(Chongqing University) Mo Lilong Liu Jiazhong(Chengdu Seamless Steel Tube Plant) |
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| Abstract: | The developing of slight CC billet cracks during two-roll cross piercing and two-roll cold-rolling are investigated. Experiments shows that the slight cracks can not be welded but enlarges, that the longitudinal and central cracks of a CC billet lead to internal and external steel pipe wreckages, and that the transverse cracks during cold-forming develop into "herringbone" cracks. |
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| Keywords: | HCC billet cross-piercing cold-rolling slight cracks developing |
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