表面技术
錶麵技術
표면기술
SURFACE TECHNOLOGY
2014年
4期
124-129
,共6页
王刚%薛东%魏元生%杨红新%刘占强
王剛%薛東%魏元生%楊紅新%劉佔彊
왕강%설동%위원생%양홍신%류점강
类金刚石碳涂层%活塞销%标杆分析%本质特征%摩擦机制
類金剛石碳塗層%活塞銷%標桿分析%本質特徵%摩抆機製
류금강석탄도층%활새소%표간분석%본질특정%마찰궤제
diamond-like carbon film%piston pin%benchmark analysis%substitutive characteristics%tribological mechanism
目的:分析两种类金刚石碳(DLC)涂层的成分和结构差异,研究涂层本质特征在发动机减摩降耗方面的应用。方法测试分析涂层成分和表面形貌,讨论在活塞销表面沉积 DLC 涂层对零件材料组织和硬度的影响,验证活塞销沉积 DLC 涂层后对发动机机械损失功率的影响,并运用转移膜和石墨化两种摩擦机制进行分析讨论。结果标杆试样的涂层较厚,为 W 掺杂的 DLC 涂层,且其致密度、均匀性及膜/基结合状态均优于在研涂层技术;成品活塞销沉积 DLC 涂层后,当转速介于2200~4000 r/ min 范围内时,涂层表现出提高发动机动力性的作用。结论 DLC 涂层应用可有效改善活塞销的表面状态,减缓零件工作条件下的磨损,延长活塞销的使用寿命。
目的:分析兩種類金剛石碳(DLC)塗層的成分和結構差異,研究塗層本質特徵在髮動機減摩降耗方麵的應用。方法測試分析塗層成分和錶麵形貌,討論在活塞銷錶麵沉積 DLC 塗層對零件材料組織和硬度的影響,驗證活塞銷沉積 DLC 塗層後對髮動機機械損失功率的影響,併運用轉移膜和石墨化兩種摩抆機製進行分析討論。結果標桿試樣的塗層較厚,為 W 摻雜的 DLC 塗層,且其緻密度、均勻性及膜/基結閤狀態均優于在研塗層技術;成品活塞銷沉積 DLC 塗層後,噹轉速介于2200~4000 r/ min 範圍內時,塗層錶現齣提高髮動機動力性的作用。結論 DLC 塗層應用可有效改善活塞銷的錶麵狀態,減緩零件工作條件下的磨損,延長活塞銷的使用壽命。
목적:분석량충류금강석탄(DLC)도층적성분화결구차이,연구도층본질특정재발동궤감마강모방면적응용。방법측시분석도층성분화표면형모,토론재활새소표면침적 DLC 도층대령건재료조직화경도적영향,험증활새소침적 DLC 도층후대발동궤궤계손실공솔적영향,병운용전이막화석묵화량충마찰궤제진행분석토론。결과표간시양적도층교후,위 W 참잡적 DLC 도층,차기치밀도、균균성급막/기결합상태균우우재연도층기술;성품활새소침적 DLC 도층후,당전속개우2200~4000 r/ min 범위내시,도층표현출제고발동궤동력성적작용。결론 DLC 도층응용가유효개선활새소적표면상태,감완령건공작조건하적마손,연장활새소적사용수명。
Objective To analyze the diversity of the composition and structure of the two kinds diamond-like carbon (DLC) film and study its application of anti-friction in the engine. Methods The composition and surface morphology of the film were ana-lyzed, the effect of DLC film on the surface of piston pin on the components organization material and hardness was discussed, the influence of the application of the DLC film on piston pin on engine mechanical loss power was verified, tribological mechanism of membrane and graphitization were analyzed and discussed. Results Benchmark coating was W-doped DLC films and was thicker. Benchmark coating specimens were better than the research coating technology in the phase density, uniformity and the bonding state. After the application of finished piston pin on DLC coating,it showed that the power performance of engine had been im-proved when the speed between the ranges of 2200 ~ 4000 r/ min. Conclusion Application of DLC film can effectively improve the surface state of piston pin and reduce parts wear under the working conditions, and thus extends the service life of piston pin.