| 国产J55高频直缝焊管在冷拔(轧)变形中的壁厚不均度、显微组织与性能变化的研究 |
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| 引用本文： | 汪洁云,尹万全.国产J55高频直缝焊管在冷拔(轧)变形中的壁厚不均度、显微组织与性能变化的研究[J].钢管,1998(2). |
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| 作者姓名： | 汪洁云 尹万全 |
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| 作者单位： | 咸阳石油钢管钢绳厂!712000(汪洁云)，中国科学院金属研究所!110015(尹万全) |
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| 摘 要： | 通过对国产J55高频直缝焊管进行冷拔（轧）变形量与相关热处理等工序的配合试验，探讨出最小壁厚不均度值的最佳变形量范围（μ≈1.45），并进行了冷拔（轧）工艺中焊管的显微组织与性能变化测定．结果表明，控制焊管冷拔变形量后进行单道次冷轧，可以获得组织与性能均匀一致的精密焊管成品，成品管的壁厚不均匀度可在3％以下，性能不低于20钢精密泵管的标准要求．
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| 关 键 词： | 高频直缝焊管 焊缝 壁厚不均度 显微组织 性能 |
INVESTIGATION OF VARIATION OF WALL-NONUNIFORMITY,MICROSTRUCTURE AND PROPERTIESOF HOME-MADE J55 HI-FREQUENCY STRAIGHT WELD PIPE IN COLD-DRAWING (ROLLING) DEFORMATION |
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| Wang Jieyun.INVESTIGATION OF VARIATION OF WALL-NONUNIFORMITY,MICROSTRUCTURE AND PROPERTIESOF HOME-MADE J55 HI-FREQUENCY STRAIGHT WELD PIPE IN COLD-DRAWING (ROLLING) DEFORMATION[J].Steel Pipe,1998(2). |
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| Authors: | Wang Jieyun |
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| Abstract: | Based on the experiments in deforming with cold-drawing (rolling) process andheat treatment of J55 hi-frequency straight weld pipe,the optimum deformation range for minimumwall-nonuniformity (u=1.45) has been set up,and the variation of microstructure and propertiesof the pipe under cold-drawing (rolling) conditions measured. The experimental result shows thatwith single-pass cold-rolling under proper control of deformation amount,it is possible to producefinished precision weld pipes with wall-nonuniformity under 3% and properties equal to or betterthan those of the 20# precision steel pipe for pump service. |
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| Keywords: | Hi-frequency straight weld pipe Weld seam Wall-nonuniformity Microstructure Property |
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