| INVESTIGATION ON FRACTAL CHARACTERISTICS OF WORN SURFACES OF POLYMER TAPES BY SAND DUST PARTICLES |
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| 作者姓名： | 武通海 刁东风 谢友柏 |
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| 作者单位： | Department of Mechanical Engineering, Xi ＇an J iaotong University Xi＇an 710049, China |
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| 基金项目： | Foundation Item： this work was supported by the National Science Foundation of China （No. 50475092） and the Foundation of Mechanical Engineering Research Laboratory, Hitachi Ltd. of Japan |
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| 摘 要： | Objective To characterize the abrasive wear of polymer tapes in ATM （Auto Teller Machine） servicing in sand dust environment. Aethods The abrasive wear experiment of polymer tapes, PEN （polyethylene-2, 6-naphthalenedicarboxylate） and PI （polyimide）, by sand dust particles is performed in ATM tribosystem. The fractal characteristics of the worn surface of polymer tapes and the corresponding wear mechanisms are examined. ReSults As main results, the worn surfaces of polymer tapes show bi-fractal characteristics, and PI tape shows higher fractal dimensions and finer wear profiles than PEN tape. Wear mechanism examination shows macro and micro ploughing and cutting grooves and micro fracture characters, which gives reasonable explanation of bi-fractal character of worn polymer tapes. Conclusion Worn polymer tape shows fractal character and bi-fractal can be used in accurately characterizing the abrasive wear of polymer tapes of ATM in sand dust environment.
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| 关 键 词： | 技术性能 磨损表面 聚合物带 微粒物 |
| 文章编号： | 1671-8267（2006）01-0017-04 |
INVESTIGATION ON FRACTAL CHARACTERISTICS OF WORN SURFACES OF POLYMER TAPES BY SAND DUST PARTICLES |
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| Wu Tonghai,Diao Dongfeng,Xie Youbai.INVESTIGATION ON FRACTAL CHARACTERISTICS OF WORN SURFACES OF POLYMER TAPES BY SAND DUST PARTICLES[J].Academic Journal of Xi’an Jiaotong University,2006,18(1):17-20. |
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| Authors: | Wu Tonghai Diao Dongfeng Xie Youbai |
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| Abstract: | Objective To characterize the abrasive wear of polymer tapes in ATM (Auto Teller Machine) servicing in sand dust environment. Methods The abrasive wear experiment of polymer tapes, PEN (polyethylene-2, 6-naphthalenedicarboxylate) and PI (polyimide), by sand dust particles is performed in ATM tribosystem. The fractal characteristics of the worn surface of polymer tapes and the corresponding wear mechanisms are examined. Results As main results, the worn surfaces of polymer tapes show bi-fractal characteristics, and PI tape shows higher fractal dimensions and finer wear profiles than PEN tape. Wear mechanism examination shows macro and micro ploughing and cutting grooves and micro fracture characters, which gives reasonable explanation of bi-fractal character of worn polymer tapes. Conclusion Worn polymer tape shows fractal character and bi-fractal can be used in accurately characterizing the abrasive wear of polymer tapes of ATM in sand dust environment. |
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| Keywords: | wear polymer fractal |
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