中国炼油与石油化工 ›› 2012, Vol. 14 ›› Issue (1): 61-67.

• Scientific Research • 上一篇    下一篇

纳米铜在板带钢冷轧乳化液中的润滑性能以及作用机理研究

王一助1,孙建林2,戴恩期3,么文静3,庄晓华3   

  1. 1. 广州机械科学研究院
    2. 北京科技大学材料科学与工程学院
    3.
  • 收稿日期:2011-06-01 修回日期:2011-12-20 出版日期:2012-03-30 发布日期:2012-03-30
  • 通讯作者: 王一助 E-mail:wangyzhu@126.com

Research on Lubrication Behaviors and Mechanism of Nano-Cu in Emulsions for Strip Cold Rolling

  • Received:2011-06-01 Revised:2011-12-20 Online:2012-03-30 Published:2012-03-30

摘要: 在超声波作用下,将平均粒径小于20nm的纳米铜粒子分散于板带钢冷轧用轧制乳化液中。通过四球摩擦试验机考查其摩擦学性能,利用光学显微镜观察了钢球的磨损表面;同时,采用JC2000C1接触角测试仪研究了纳米铜粒子对轧制乳化液润湿性能的影响;另外,通过四辊冷轧试验机研究了轧制乳化液的轧制润滑性能。实验结果表明,纳米铜粒子可以有效提高轧制乳化液的润湿性能以及极压抗磨减摩性能;与此同时,纳米铜粒子还表现出优良的润滑性能,在含有纳米铜粒子的轧制乳化液润滑下,板带钢可以获得更小的轧制厚度和优异的轧后表面质量。最后,本文对纳米铜在板带钢冷轧乳化液中的作用机理进行了探讨。

Abstract: In this paper, nano-Cu particles with an average size of smaller than 20 nm were dispersed in cold rolling emulsions for steel strip under the effect of ultrasonic. The tribological properties of the cold rolling emulsion doped with nano-Cu were evaluated by using a four-ball machine, and the worn surfaces of the steel balls were observed by using an optical microscope. We also used the JC2000C1 wetting angle tester to research the variation of the emulsion’s wetting performance when Cu particles were applied. Besides, the lubricity of the cold rolling emulsion doped with nano-Cu for steel strip was evaluated on a four-high rolling mill by using the emulsion without nano-Cu for comparison. Results indicated that Cu nano-particles as the additive used in cold rolling emulsion were able to improve the wetting property, friction-reducing, anti-wear, and extreme pressure properties of the base stock significantly. At the same time, Cu nano-particles also showed good lubricity to the cold-rolled steel strips. Namely, the cold-rolled steel strip under the lubrication of the cold rolling emulsion containing nano-Cu has considerably decreased the after-rolling thickness and obtained excellent surface quality as well. Finally, the lubrication mechanism of Cu nano-particles in the emulsion for cold-rolled steel strip was discussed.