| 引用本文: | 王新昶,王成川,孙方宏.金刚石薄膜涂层扇形孔绞线紧压模的制备、抛光及应用[J].中国表面工程,2016,29(6):75~82 |
| WANG Xin-chang,WANG Cheng-chuan,SUN Fang-hong.Fabrication, Polishing and Application of Diamond Coated Compacting Die with Sector-shaped Hole[J].China Surface Engineering,2016,29(6):75~82 |
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| 摘要: |
| 为改善异型绞线紧压模耐磨损性能，提高异型线缆质量，采用热丝化学气相沉积方法，在孔型经优化设计的扇形孔绞线紧压模内孔沉积了厚度均匀、附着性能优异、相对易于抛光且具有很好的耐磨损性能的硼掺杂微米-本征微米-本征细晶粒复合金刚石薄膜，采用机械自动线抛光、磨料流抛光及手工机械抛光相结合的抛光工艺对内孔工作表面进行抛光，使其整体表面粗糙度Ra值达到50 nm以下，在铜材质扇形分裂导体绞线紧压实际生产应用试验表明，可以替代低效的传统滚轮挤压工艺；采用传统工艺制造的异型电缆表面粗糙度Ra值约为1.027 μm，应用金刚石薄膜涂层扇形孔绞线紧压模可以将其表面粗糙度降低到0.473 μm，且在截面积更小、质量更轻的情况下获得更小的电阻。 |
| 关键词: 化学气相沉积 扇形孔 紧压模 金刚石薄膜 抛光 |
| DOI：10.11933/j.issn.1007-9289.2016.06.011 |
| 分类号: |
| 基金项目:国家自然科学基金（51275302）；中国博士后科学基金（15Z102060056，2016T90370） |
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| Fabrication, Polishing and Application of Diamond Coated Compacting Die with Sector-shaped Hole |
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WANG Xin-chang, WANG Cheng-chuan, SUN Fang-hong
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State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240
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| Abstract: |
| In order to improve the wear resistance of the shaped compacting dies and the quality of as-produced cables, adopting the hot filament chemical vapor deposition, a type of high-performance diamond film was uniformly deposited on the inner hole surface of the compacting die with a sector-shaped hole that has been optimally designed. Such the diamond film is the boron-doped micro-crystalline, undoped micro-crystalline and undoped fine-grained composite diamond film, which shows favorable adhesion, relatively nice polishability and high wear resistance. Afterwards, as-deposited diamond film is polished by a combined polishing technology, including the mechanical polishing using an automatic wire, abrasive flow machining and the manual mechanical polishing, for reducing the surface roughness Ra on the whole surface of the inner hole to below 50 nm. Finally the diamond coated compacting die was employed for producing the Cu sector-shaped split conductors, which can replace the low-efficiency conventional extruding technology. The shaped wires produced by the conventional technology show a surface roughness Ra value of 1.027 μm, while the application of the diamond coated dies can reduce it to 0.473 μm. Besides, the new cables also perform lower electrical resistance under the conditions of smaller section and lighter weight. |
| Key words: chemical vapor deposition (CVD) sector-shaped hole compacting die diamond film polishing |
