Research on Galling Mechanism of Stainless Steel Thread and Preventive Scheme
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摘要: 测试了不锈钢螺纹连接在慢速预紧与拆卸、快速预紧与拆卸、涂胶后快速预紧与拆卸3种条件下的抗咬死能力,分析不锈钢螺纹连接的咬死机理,提出了螺纹连接咬死的预防措施。研究表明,快速预紧和拆卸引起的螺牙间高温导致不锈钢螺牙表面发生严重黏着磨损。黏着磨损产生的磨屑在螺牙间堆积,阻碍了螺牙的旋合过程并最终引起咬死现象。涂胶和减小预紧和拆卸速度均可降低螺牙间温度,从而减轻黏着磨损,降低不锈钢螺纹连接发生咬死的概率。Abstract: The anti-galling ability of stainless steel bolt was investigated under three conditions, i.e. slow tightening and loosening, quick tightening and loosening and quick tightening and loosening after the application of glue. The galling mechanism of stainless steel bolt was analyzed and the anti-galling schemes were proposed. The test results show that the high temperature induced by quick tightening and loosening causes the serious adhesion wear at the threads. The wear debris are accumulated within the space between the threads, which prevents the movement of the threads and finally causes the galling of the bolt. The temperature of the threads can be reduced by applyingthe glue and the reduction in the speed of tightening and loosening, which alleviates the adhesion wear and suppresses the occurrence of galling.
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Key words:
- galling mechanisms /
- stainless steel thread /
- thermal effect /
- adhesion wear
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[1] 唐春保,苑星海.螺栓抗咬死耐高温减摩材料的研制[J].润滑与密封,2005,(1):99-100,114 Tang C B, Yuan X H. Preparation of scuffing resistance friction-reducing material for bolt in high temperature[J]. Lubrication Engineering, 2005,(1):99-100,114(in Chinese) [2] 张雅琴.不锈钢螺栓锁死问题分析[J].科技与创新,2016,(4):120-121 Zhang Y Q. Analysis on the locking of stainless steel bolt[J]. Science and Technology & Innovation, 2016,(4):120-121(in Chinese) [3] 李文顶,孔鸣杰,江文达.不锈钢螺纹联接副损伤及咬死现象分析与解决措施[J].机电工程技术,2013,42(1):97-99 Li W D, Kong M J, Jiang W D. Analysis of screw pairs galling of stainless stell[J]. Mechanical & Electrical Engineering Technology, 2013,42(1):97-99(in Chinese) [4] 唐春保,徐卫萍.螺栓抗咬死减摩防锈材料的研制[J].表面技术,2004,33(4):55-57 Tang C B, Xu W P. Preparation of scuffing resistance anti-friction material for bolt at high temperature[J]. Surface Technology, 2004,33(4):55-57(in Chinese) [5] 万蕾,孙璐,杨耀东.接头螺纹咬死失效原因分析[J].宇航材料工艺,2015,45(1):77-81 Wan L, Sun L, Yang Y D. Failure analysis for screw thread of joint[J]. Aerospace Materials & Technology, 2015,45(1):77-81(in Chinese) [6] 钱学宁,鄢家洪,高大伟,等.不锈钢紧固件咬死现象的工艺分析及改善措施[J].机械工程师,2015,(7):175-176 Qian X N, Yan J H, Gao D W, et al. Process analysis and improvement measures of stagnation of stainless steel fasteners[J]. Mechanical Engineer, 2015,(7):175-176(in Chinese) [7] 肖秀珍,梁士红.关于不锈钢螺栓锁死问题的探讨[J].机电产品开发与创新,2010,23(3):65-66 Xiao X Z, Liang S H. The discussion of deadlock about stainless steel bolts[J]. Development & Innovation of Machinery & Electrical Products, 2010,23(3):65-66(in Chinese) [8] Jiang Y Y, Zhang M, Lee C H. A study of early stage self-loosening of bolted joints[J]. Journal of Mechanical Design, 2003,125(3):518-526 [9] 姜红超.往复压缩机螺栓断裂与疲劳寿命分析[J].石油化工安全技术,2006,22(6):22-24,44 Jiang H C. Analysis of bolt failure and fatigue life of reciprocating compressor[J]. Petrochemical Safety Technology, 2006,22(6):22-24,44(in Chinese) [10] Archard J F. Contact and rubbing of flat surfaces[J]. Journal of Applied Physics, 1953,24(8):981-988 [11] 温诗铸,黄平.摩擦学原理[M].2版.北京:清华大学出版社,2002 Wen S Z, Huang P. Mechanism of tribology[M]. 2nd ed. Beijing:Tsinghua University Press, 2002(in Chinese) [12] Liu J H, Ouyang H J, Peng J F, et al. Experimental and numerical studies of bolted joints subjected to axial excitation[J]. Wear, 2016,346-347:66-77
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