外加厚油管加厚端常见缺陷及预防措施

发布时间：2018-12-14 04:15

【摘要】：为了提高外加厚油管加厚端质量、减少缺陷的产生,以加厚Φ73.02 mm×5.51 mm油管为例,分析了油管外加厚端外表面凸棱、结疤、管端飞边、内表面凹坑等缺陷产生的原因,并给出了相应的预防措施,主要有调整加热温度、改善润滑冷却效果、保证钢管送料位置等措施,可减少内表面凹坑和外表面结疤等缺陷的出现;根据加厚缩短量计算公式计算出理论缩短量,进而确定冲头行程,能有效减少端面凹槽、内凹坑缺陷的产生。
[Abstract]:In order to improve the quality of thickened tubing and reduce the production of defects, taking the thickened 桅 73.02 mm 脳 5.51 mm tubing as an example, the causes of the defects such as convex edges, scarring, flying edges at the end of the tubing and pits on the inner surface are analyzed. The corresponding preventive measures are given, such as adjusting the heating temperature, improving the lubricating and cooling effect, ensuring the feeding position of the steel pipe, and so on, which can reduce the appearance of the inner surface pit and the outer surface scar and so on. The theoretical shortening is calculated according to the formula of thickening shortening, and then the stroke of punching head is determined, which can effectively reduce the appearance of the defects in the end groove and the inner pit.
【作者单位】：宝鸡石油钢管有限责任公司西安石油专用管分公司;
【分类号】：TE931.2

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