| 提高发动机气缸孔的耐磨性的激光强化新技术 |
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| 引用本文： | 徐方大,陈朝晖,张永康.提高发动机气缸孔的耐磨性的激光强化新技术[J].江苏大学学报(自然科学版),2001,23(2):18-21. |
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| 作者姓名： | 徐方大 陈朝晖 张永康 |
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| 作者单位： | 1. 常柴股份有限公司,
2. 江苏理工大学机械工程学院, |
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| 基金项目： | 江苏省应用基金!（BJ99015） |
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| 摘 要： | 文中介绍了激光淬火提高气缸孔耐磨性的国内外研究及应用动态、技术难点、强化机理、激光处理工艺及淬火方式，讨论了激光淬火轨迹和表面预处理对强化效果的影响，总结并分析了不同缸体的强化效果．结果表明：在优化的工艺条件下，不仅激光淬火缸体的寿命提高２～３倍，而且与匹配的非激光处理活塞环的耐磨性也提高５０％左右，机油颗粒排放量降低２０％～ ２５％．
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| 关 键 词： | 激光淬火 耐磨性 缸体 |
| 文章编号： | 1007-1741(2001)02-0018-04 |
| 修稿时间： | 2000年8月31日 |
New Technologies for Improving Wear-Resistant Properties of Cylinder Bore by Laser-Strengthening |
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| XU Fang-da,CHENG Chao-hui,ZHANG Yong-kang.New Technologies for Improving Wear-Resistant Properties of Cylinder Bore by Laser-Strengthening[J].Journal of Jiangsu University:Natural Science Edition,2001,23(2):18-21. |
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| Authors: | XU Fang-da CHENG Chao-hui ZHANG Yong-kang |
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| Abstract: | The development at home and abroad of laser quench for improving the wear-resistant properties of the cylinder liner is introduced. The key technologies, the mechanism of strengthening, laser processes, as well as quenching mode are analyzed. The effect of laser quench tracks and pre-treatments of the specimen surface upon strengthening effectiveness, and the experimental results of different processed cylinder liners and bodies are summarized. The results show that under the conditions of optimum processes, not only the life of the laser-processd cylinder bore is prolonged by 2- 3 times but also the wear-resistant properties of the pairing un-processed piston rings are improved and increased by 50%. The fuel discharge decreases by 20 % -25 %. |
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| Keywords: | laser quench wear-resistant propery cylinder body |
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