(北京有色金属研究总院 国家有色金属复合材料工程中心,北京 100088)
摘 要: 研究了喷射成形Zn-27Al-1Cu合金棒坯的制备技术、热挤压工艺以及Zn-27Al-1Cu合金滑动轴承的制备技术,分析了喷射成形Zn-27Al-1Cu合金的显微组织、力学性能、耐磨性能。实验结果表明:采用喷射成形制备的Zn-27Al-1Cu合金的棒坯经后续热挤压成形后,具有比传统铸造ZA27合金更高的力学性能和耐磨性能。这种由喷射成形Zn-27Al-1Cu合金制造的滑动轴承在实际使用过程中,其寿命比传统材料制造的滑动轴承提高150%以上。
关键字: 喷射成形; Zn-27Al-1Cu合金; ZA27合金; 滑动轴承
Zn-27Al-1Cu alloy by spray forming process
(Beijing General Research Institute for Nonferrous Metals,
Beijing 100088, P.R.China)
Abstract:Producing process of spray formed Zn-27Al-1Cu billets, hot extrusion process and producing process of sliding bearing were studied. The microstructure, properties and wearability of spray formed Zn-27Al-1Cu billets were also studied. The results of experiments and application show that the strength of hot extruded Zn-27Al-1Cu from spray forming process is much better than those of Babbit and cast ZA27 alloy. The durability of new type sliding bearing is 150% more than that of conventional one.
Key words: spray forming; Zn-27Al-1Cu alloy; cast ZA27 alloy; sliding bearing