中国机械工程 ›› 2010, Vol. 21 ›› Issue (03): 340-343.

• 机械基础工程 • 上一篇    下一篇

超细晶粒镍药型罩的精密电铸试验研究

雷卫宁1,2;朱增伟2;陶钢3
  

  1. 1.江苏技术师范学院,常州,213001
    2.南京航空航天大学, 南京,210016
    3.南京理工大学,南京,210094
  • 出版日期:2010-02-10 发布日期:2010-03-08
  • 基金资助:
    国家自然科学基金资助项目(50875116);江苏省自然科学基金资助项目(BK2006043)
    National Natural Science Foundation of China(No. 50875116)

Experimental Research on Finer-grain Electroformed Nickel Shaped Charge Liner

Lei Weining1,2;Zhu Zengwei2;Tao Gang3
  

  1. 1.Jiangshu Teachers University of Technology, Changzhou,Jiangshu,213001
    2.Nanjing University of Aeronautics & Astronautics, Nanjing, 210016
    3.Nanjing University of Science and Technology, Nanjing, 210094
  • Online:2010-02-10 Published:2010-03-08
  • Supported by:
    National Natural Science Foundation of China(No. 50875116)

摘要:

针对新型破甲聚能试验装置,分析了其核心部件药型罩的电铸过程中的电场分布。采取超窄脉宽电源和阴极旋转的方式,像形阳极、阴极电场局部屏蔽和去泡等辅助工艺措施,制备出高纯度、超细晶粒电铸镍药型罩。采用X射线等现代检测方法对电铸药型罩进行了检测,结果表明,药型罩含镍量不小于999%,电铸层晶粒尺寸小于100nm,且组织致密。晶体以细小的等轴-柱状晶方式生长,并存在明显的择优生长取向。电铸镍药型罩头部速度超过10km/s,射流的凝聚性和均匀性非常好,为提高破甲侵彻性能提供了保证。

关键词:

Abstract:

The liner of electroforming nickel is the key part of the new pattern shaped charge, and the current distribution was analyzed in its electroforming process. The high purity,finer-grain electroformed nickel shaped charge liner was produced by high frequency pulse current , cathode rotation and the other technical methods such as conformal anode, cathode local shielding and removing gas bubbles. The liner microstructure evolution and its properties were examined and discussed by X-ray and other testers. It is found that the purity of nickel is more than 999%, the electroforming layer is dense and its grain sizes are less than 100nm, which has strong crystal orientation texture. Moreover, the liner tip velocity is above 10km/s, and its jet has good properties of continuity and uniformity which may result in sufficient improvement of armor penetration performance.

Key words: electroforming, nickel liner, pulse current, jet property

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