海洋钻机盘式刹车盘的磨蚀及修复措施研究

发布时间：2018-04-04 13:04

本文选题：盘式刹车盘　切入点：堆焊　出处：《东北石油大学》2017年硕士论文

【摘要】：随着陆地石油资源逐步枯竭,迫使石油行业进入海洋时代,而在海洋自然环境更加恶劣和钻井深度依次加大的条件下,钻井作业的安全性和经济性显得尤为重要。海洋盘式刹车盘由于其具有刹车力矩大、刹车易于操作、安全可靠、敏感性高、维护方便等优势,在国内外已较为广泛地使用于石油钻机,特别是深井、超深井钻机上。由于海洋钻机盘式刹车盘的工作环境复杂,工作温度较高,承受着高温氧化、磨蚀和电化学腐蚀等破坏形式,如果不加以修复,盘式刹车盘就会面临失效的危险,这对海洋钻机平台和工作人员的安全造成巨大的威胁。本论文通过摩擦磨损测试,研究海洋钻机盘式刹车盘的耐磨损性能,利用高温高压腐蚀测试,研究海洋钻机盘式刹车盘基体的高温腐蚀性能,利用极化曲线测试和阻抗谱测试,研究海洋钻机刹车盘基体的电化学性能,探究海洋钻机盘式刹车盘的磨蚀机理。本论文通过堆焊技术,制备了堆焊耐磨镀层,通过等离子弧喷涂技术,制备了热喷涂陶瓷涂层,通过电刷镀技术,制备了Ni-P合金电刷镀镀层。通过显微硬度计,对堆焊耐磨镀层、热喷涂陶瓷涂层、电刷镀Ni-P合金镀层进行硬度测试,通过摩擦磨损试样机对堆焊耐磨镀层、热喷涂陶瓷涂层、电刷镀Ni-P镀层的耐磨性进行研究。通过浸泡试验、电化学试验研究堆焊耐磨镀层、热喷涂陶瓷涂层、电刷镀Ni-P合金镀层的耐蚀性能。通过对比不同修复层的机械性能和耐蚀性能,研究不同修复层之间的关系,不同修复措施的优缺点,获得最合适的修复措施。
[Abstract]:With the gradual depletion of land oil resources, the oil industry is forced to enter the marine era. However, under the conditions of worse natural environment and greater drilling depth in turn, the safety and economy of drilling operations are particularly important.Due to its advantages of large braking torque, easy operation, high sensitivity and easy maintenance, the offshore disc has been widely used in oil drilling rigs at home and abroad, especially in deep and ultra-deep drilling rigs.Because of the complex working environment and high working temperature of the disc brake disc of offshore drilling rig, it is subjected to high temperature oxidation, abrasion and electrochemical corrosion. If it is not repaired, the disc brake disc will face the risk of failure.This poses a great threat to the safety of offshore rig platforms and staff.In this paper, the wear resistance of the disc brake disc of offshore drilling rig is studied by friction and wear test, and the high temperature corrosion performance of the disc brake disc matrix of the offshore drilling rig is studied by using high temperature and high pressure corrosion test, and the polarization curve and impedance spectrum are tested by polarization curve test and impedance spectrum test.The electrochemical performance of the brake disc matrix of offshore drilling rig was studied, and the abrasion mechanism of the disc brake disc of the offshore drilling rig was investigated.In this paper, hardfacing wear-resistant coating was prepared by surfacing technology, thermal sprayed ceramic coating was prepared by plasma arc spraying technology, and Ni-P alloy brush-plating coating was prepared by brush plating technology.The hardness of hardfacing wear-resistant coating, hot-sprayed ceramic coating and brush plating Ni-P alloy coating were tested by microhardness tester.The wear resistance of brush plating Ni-P coating was studied.The corrosion resistance of wear-resistant surfacing coating, thermal sprayed ceramic coating and brush plating Ni-P alloy coating was studied by immersion test and electrochemical test.By comparing the mechanical properties and corrosion resistance of different repair layers, the relationship between different repair layers and the advantages and disadvantages of different repair measures were studied, and the most suitable restoration measures were obtained.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE951

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