CAJ | 학술논문

转子是螺杆钻具的核心部件，与定子相配合，决定了螺杆钻具的工作效率和动力性能。主要研究不同泥浆固相含量和添加剂对螺杆钻具转子表面磨损的影响，并设计了专用试验装置以模拟近井下条件工作时螺杆钻具转子的表面磨损情况，对其磨损规律开展研究，探索了转子在不同泥浆条件下的磨损规律，并结合相关磨损机理进行了进一步分析。初步发现了对硬铬镀层损伤较大的因素是泥浆固相与盐类添加剂，进而确定了硬铬镀层磨损的主要形式是腐蚀磨损，从而形成了对转子的制造工艺及使用方法的有益建议。
전자시라간찬구적핵심부건，여정자상배합，결정료라간찬구적공작효솔화동력성능。주요연구불동니장고상함량화첨가제대라간찬구전자표면마손적영향，병설계료전용시험장치이모의근정하조건공작시라간찬구전자적표면마손정황，대기마손규률개전연구，탐색료전자재불동니장조건하적마손규률，병결합상관마손궤리진행료진일보분석。초보발현료대경락도층손상교대적인소시니장고상여염류첨가제，진이학정료경락도층마손적주요형식시부식마손，종이형성료대전자적제조공예급사용방법적유익건의。
The heart of the screw drill ( also called positive displacement motor, PDM) is the rotor, it decides the work ef-ficiency and performance of the screw drill.In this paper, the influence of different slurry solid content and additive on ro-tor surface wear was studied, and a special testing set was made to stimulate the rotor surface wearing rule under real down-hole working conditions.The rotor wear regularity under different mud conditions was explored, which was further studied. It is found that the solid particle and salty additives are the main reasons for hard chromium coating damage and identifies that the main form of hard chromium coating damage is corrosive wear.Some suggestions are presented to the rotor manufac-turing process and the application.