华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (12): 17-22.

• 机械工程 • 上一篇    下一篇

Ni2P电刷镀在拉深不锈钢材料模具上的应用

罗建东 阮锋   

  1. 华南理工大学 工业装备与控制工程学院, 广东 广州 510640
  • 收稿日期:2007-01-17 出版日期:2007-12-25 发布日期:2007-12-25
  • 通信作者: 罗建东(1967-) ,男,博士生,主要从事材料表面处理技术研究. E-mail:jdluo@scut. edu. cn
  • 作者简介:罗建东(1967-) ,男,博士生,主要从事材料表面处理技术研究.
  • 基金资助:

    广东省科技攻关项目(2004A11403002)

Application of Ni-P Brush Plating to Deep Drawing D ie of Stainless SteelMater ials

Luo Jian-dong  Ruan Feng   

  1. School of Industrial Equipment and Control Engineering, South China Univ. of Tech. , Guangzhou 510640, Guangdong, China
  • Received:2007-01-17 Online:2007-12-25 Published:2007-12-25
  • Contact: 罗建东(1967-) ,男,博士生,主要从事材料表面处理技术研究. E-mail:jdluo@scut. edu. cn
  • About author:罗建东(1967-) ,男,博士生,主要从事材料表面处理技术研究.
  • Supported by:

    广东省科技攻关项目(2004A11403002)

摘要: 针对拉深不锈钢材料时影响模具使用的主要问题———粘着磨损问题,利用扫描电镜、硬度计、磨损实验机、X2射线衍射仪、能谱仪、光学显微镜等设备,通过考察NiSO4·6H2O、NaH2 PO2·H2O、EDTA-2Na、C6H8O7·H2O、C3H6O3 加入量对施镀后的镀层含P量、厚度、硬度、耐磨性、结合力、物相、形貌、能谱等的影响,获得了一种电刷镀优化配方,用其施镀可获得P含量(质量分数)为2%左右Ni2P镀层,该镀层经400 ℃左右的热处理后,与模具基材Cr12MoV有着良好的结合力,自身亦具有较高的硬度和良好的耐磨性. 使用该配方和方法获得的镀层经生产验证,可以有效地解决模具的粘着磨损问题.

关键词: Ni-P电刷镀, 拉深模, 粘着磨损, 不锈钢

Abstract:

Adhesive abrasion is the main factor that influences the die operation in the deep drawing of stainless steelmaterials. In order to solve this p roblem, SEM, hardometer, abrasion-testingmachine, XRD, EDS and light microscope are adop ted to investigate the effects of the addition of NiSO4·6H2O、NaH2 PO2·H2O、EDTA-2Na、C6H8O7·H2O、C3H6O3  on the phosphoric content, thickness, hardness, abradability, cohesion, phase, mor-phology and energy spectrum of the p lating layer. An op timized formula for brush p lating is also p roposed. The re-sults show that, by using the p roposed formula, a Ni-P layer with a phosphoric mass fraction of about 2% can be obtained. The layer effectively sticks to the surface of Cr12MoV and possesses excellent hardness and abrasion-re-sistance after heating at 400 ℃. Practical app lication in factories reveals that the strengthened p lating layer obtained by the p roposed formula effectively avoids the adhesive abrasion of the die.

Key words: Ni-P brush plating, deep drawing die, adhesive abrasion, stainless steel