引用本文:王顺兴,田保红,李全安,李春华,朱蕴策,魏震.激光熔敷技术在排气门和模具上的应用研究[J].中国表面工程,2000,(4):41~43
.Application of Laser Cladding Technology on Exhaust Valves and Hot Working Dies[J].China Surface Engineering,2000,(4):41~43
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激光熔敷技术在排气门和模具上的应用研究
王顺兴,田保红,李全安,李春华,朱蕴策,魏震
作者单位
摘要:
研究了在２１－４Ｎ钢表面激光熔敷Ｎｉ基合金和Ｎｉ基合金中再加入ＷＣ和稀土氧化物ＣｅＣＯ２熔敷层的摩擦磨损性能和高温冲吉磨损性能，并对汽车排气门和滚动轴承套圈热冲模进行了激光熔敷处理和装机试验，结果表明，在排气门上激光熔敷Ｎｉ２１合金，热冲模具激光熔敷Ｎｉ６０＋２０％ＷＣ＋０．５％ＣｅＯ２能显著提高它们的使用寿命。
关键词:  激光熔敷 摩擦磨损 冲击磨损 排气门 模具 汽车
DOI：
分类号:U464.134.3 TG76
基金项目:机械工业部技术发展基金?
Application of Laser Cladding Technology on Exhaust Valves and Hot Working Dies
Wang Shunxing  Tian Baohong  Li Quanan  Li Chunhua  Zhu Yunche  Wei Zhen
Abstract:
Tribological and impact wear properties at elevated temperature of the coatings made by laser remelting nickel-based alloy and alloy with tungsten carbide and rare earth oxide on 21-4N valve steel were investigated respectively. These nickel-base coatings on exhaust valves of automobile and hot working dies of ball bearings were evaluated in field-tests. The results showed that laser remelted Ni21 alloy coating for exhaust valves and Ni60+20%WC+0.5%CeO2 composite coating for hot working dies can prolong their service life markedly.
Key words:  laser cladding, friction and wear, impact wear, exhaust vale. diP
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