共查询到20条相似文献,搜索用时 47 毫秒
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邹德祎 《机械工人(冷加工)》1999,(2)
石油套管是石油钻井行业的重要工程材料,套管质量直接关系到固井工程的质量,而套管螺纹又是套管质量的主要问题。我厂加工外径139.7mm、壁厚6.2mm J—55级石油套管螺纹,是在SI—245B 相似文献
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油套管作为数控车床加工的重要零配件,是石油天然气勘探和开采的重要设备.使用数控车床加工套管,不仅能够更好地保障油套管的使用性能,还能够保证特殊螺纹油套管的使用质量.本文探索数控车床加工特殊螺纹油套管的路径,希望可以为油套管的加工效能提升提供借鉴. 相似文献
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油套管粘扣问题一直是套管生产厂家的重点研究课题,通过对一种新型石油专用管-SEW油套管的螺纹抗粘扣性能进行分析,从API圆螺纹粘扣失效机理、螺纹参数优化、接箍镀层选用到油田作业规范等方面进行了归纳总结,提出了在SEW油套管生产中应注意的问题,具有一定的借鉴意义。 相似文献
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采用液相还原法制备纳米铜,经过适当的离心浓缩处理制得固含量为15%~20%(质量分数),平均粒径约为95 nm的纳米铜乙醇悬浊液;将其与纳米聚四氟乙烯配合,并与聚丙烯酸树脂结合制备成复合纳米减摩涂料,涂覆在石油套管及接箍螺纹表面,进行现场上扣试验。结果表明,该减摩涂料能够有效地降低螺纹间的摩擦因数,减少钢铁表面间的直接接触,起到减摩抗磨的作用;将该减摩涂料涂覆于石油专用管材上的圆螺纹和偏梯形螺纹油套管接头表面,均可有效地降低油套管的上扣扭矩,从而极大地改善油套管黏扣现象。 相似文献
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En Hong Hongwei Zhang Reuven Katz John S. Agapiou 《The International Journal of Advanced Manufacturing Technology》2012,62(1-4):221-229
During the manufacturing process of mass-produced automotive parts, millions of internal threads are produced annually by each automaker. The manufacturers invest a lot of effort and resources to improve the quality of the threads by inspecting their features, mainly by using manual contact gages. The majority of manufactured threads are used in threaded joints that assemble two mechanical parts. However, there are threads that have additional functionality, for example, an automotive spark plug. Recently, automotive designers have found that the angular direction of the spark plug inside the combustion chamber affects the efficiency of the engine. Hence, the manufacturers are interested in measuring the exact position of the thread starting point, allowing them to position the plug in the right direction during the plug assembly process. Our technique allows precise measurement of the thread starting point and meets this requirement. In order to improve the quality of internal threads, it is essential to measure the threads dimensional features. It is also important to inspect its internal surface for defects such as the existence of burrs, thread discontinuities, or internal porosity defects. The paper introduces two novel non-contact electro-optical techniques for inspecting small-size internal threads. The first one enables in-process internal thread geometrical measurements using a high-precision laser sensor which utilizes a motorized periscope. The second technique is based on image processing and uses innovative machine vision; a line-scan technique which uses a CCD camera with a “sight pipe” panoramic optical device. The two methods are complementary; together they allow the practical inspection of all needed features of the internal thread. The methods were tested successfully. 相似文献
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Sergey Kosarevsky 《The International Journal of Advanced Manufacturing Technology》2010,48(1-4):267-272
The problem described in this paper arises while measuring pitch of the large-scale thread gauges with a profile-measuring machine. Analytic estimate of the thread gauge alignment uncertainty is given, which results in the accumulated error of the thread pitch measurement. The results proposed in this paper should be considered as an additional source of uncertainty while inspecting the thread pitch on profile-measuring machines. 相似文献
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螺纹槽换热管的滚轧加工及力学性能的研究 总被引:3,自引:0,他引:3
根据滚轧加工原理设计开发了一种简单的、能在普通车床上应用的螺纹槽换热管滚轧头,并对滚轧加工的螺纹槽换热管与光滑换热管的力学性能进行了研究。 相似文献
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介绍了CTW800数控线切割机床的主要技术指标,锥度机床立柱线架特点,U、V轴的移动参数和加工锥度工件的方法过程及注意事项.T型床身结构提高了机床精度和稳定性;采用双片齿轮消隙机构,无需反向间隙补偿,即可实现高传动精度.锥度线架采用独特的四连杆技术实现大锥度切割.锥度加工时上下导轮同步旋转,既保证了加工精度和光洁度,又... 相似文献
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油管螺纹检测传感器的设计 总被引:2,自引:0,他引:2
油管螺纹部分的损伤是油田采油过程中造成事故、返工的一个重要原因,因此需要对其定期进行检测.提出一种专门用于检测工件端部的局部漏磁检测方法,介绍了一种油管螺纹漏磁检测传感器的设计方法.该检测传感器主要由磁化部分、磁感应部分、直线扫描驱动部分以及等空间采样控制4部分组成,可对油管螺纹部分经常出现的断扣、丝扣磨损、根部裂缝、粘扣以及油管螺纹区锥度的变化等缺陷进行准确、快速的检测,适合于现场检测的要求,具有非常广泛的应用前景. 相似文献
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简要分析某型飞机油量表系统的组成,介绍一种基于PX嗯线技术的飞机油量表系统自动检测系统的设计,系统采用虚拟仪器技术,软件基于LabVIEW7.1开发设计。该自动检测系统可实现飞机油量表系统的自动测试、检验和分析,大大提高了设备检测的效率和可靠性。 相似文献
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为了进一步提高螺纹车削的精度,分析了影响螺纹形位公差的因素,通过科学的检测方法获得公差数据。影响形位公差值的因素十分复杂,检测人员必须从形状公差、位置公差两方面深入分析,以保证螺纹车削质量。 相似文献