• CN:11-2187/TH
  • ISSN:0577-6686

›› 2002, Vol. 38 ›› Issue (8): 139-142.

• 论文 • 上一篇    下一篇

喷射成形制备钢/Al-Pb合金轴瓦材料的研究

陈桂云;田冲;杨林;赵九洲;张永昌   

  1. 中国科学院金属研究所
  • 发布日期:2002-08-15

STUDY OF THE MANUFACTURING OF STEEL / Al-Pb COMPOSITE BEARING MATERIAL BY SPRAY FORMING

Chen Guiyun;Tian Chong;Yang Lin;Zhao Jiuzhou;Zhang Yongchang   

  1. Institute of Metal Research, Chinese Academy of Sciences
  • Published:2002-08-15

摘要: 利用自行研制的大型喷射成形装置,对成分为Al-6.5Pb-4Si-1Cu-0.5Sn的合金轴瓦材料进行了喷射成形工艺研究。并制备了晶粒均匀密度良好的板坯。研究了合金的显微组织与性能。研究表明:喷射成形Al-Pb合金的显微组织为均匀细小的Pb相粒子弥散分布在Al基体中。这些细小的Pb相粒子对提高合金耐磨性具有很大帮助。喷射沉积成形钢/铝复合板经50%轧制变形后可获得良好的结合强度及组织性能,可做汽车的轴瓦材料。

关键词: Al-Pb合金, 力学性能, 喷射成形SF, 显微组织, 电火花加工, 放电产物, 放电点分布均匀性, 高速摄像机, 钛合金

Abstract: The spray forming process of Al-6.5Pb-4.5Si-Cu-0.5Sn bearing alloy is studied using a spray forming equipment. The microstructure and the mechanical properties of the spray formed steel / Al-Pb composite steel strip is analyzed. It is shown that the microstructure of the spray formed Al-Pb layer consisted of the Al-Si matrix and the homogeneously distribut-ed Pb particles. The refined Pb particles improve the wear-resistant property of the alloy. After a rolling of 50% reduction the bonding strength between the spray formed Al-Pb layer and the steel strip is larger than 50 Mpa. The composite steel / Al-Pb strip may be a good potential material to be used for automotive bearing materials.

Key words: Al-Pb alloy, Mechanical properties, Microstructure, Spray forming, Discharge products, Electric discharge machining, High-speed video camera, Titanium alloy, Uniformity of the discharge point distribution

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