ISSN   1004-0595

CN  62-1095/O4

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王一助, 孙建林, 王冰, 朱广平. 纳米Fe3O4在板带钢冷轧轧制液中的摩擦学性能[J]. 摩擦学学报, 2010, 30(6): 572-576.
引用本文: 王一助, 孙建林, 王冰, 朱广平. 纳米Fe3O4在板带钢冷轧轧制液中的摩擦学性能[J]. 摩擦学学报, 2010, 30(6): 572-576.
WANG Yi-zhu, SUN Jian-lin, WANG Bing, ZHU Guang-ping. Tribological Properties of Nano-Fe3O4 as Additive in Cold Rolling Emulsion for Steel Strip[J]. TRIBOLOGY, 2010, 30(6): 572-576.
Citation: WANG Yi-zhu, SUN Jian-lin, WANG Bing, ZHU Guang-ping. Tribological Properties of Nano-Fe3O4 as Additive in Cold Rolling Emulsion for Steel Strip[J]. TRIBOLOGY, 2010, 30(6): 572-576.

纳米Fe3O4在板带钢冷轧轧制液中的摩擦学性能

Tribological Properties of Nano-Fe3O4 as Additive in Cold Rolling Emulsion for Steel Strip

  • 摘要: 在超声波作用下,将经油酸表面修饰平均粒径为20 nm的纳米Fe3O4微粒分散于板带钢冷轧轧制液中,在MRS-10A四球摩擦磨损试验机上考察了其对钢/钢摩擦副摩擦磨损性能的影响;利用x射线衍射仪和透射电镜分析了纳米Fe3O4的相组成和微结构,采用光学显微镜观察了磨损表面形貌。利用四辊冷轧试验机进行了轧制液润滑下的板带钢冷轧试验,考察了纳米Fe3O4添加剂对板带钢冷轧润滑的效果。结果表明:纳米Fe3O4作为轧制液添加剂能有效提高钢/钢摩擦副的抗磨性能、降低摩擦系数,同时表现出良好的板带钢冷轧润滑效果;含纳米Fe3O4的轧制液可明显降低带钢最小可轧厚度,并改善轧制带钢板面质量。

     

    Abstract: Fe3O4 nanoparticles surface-modified with oleic acid, with an average size of 20 nm, were dispersed in a cold-rolling emulsion for steel strips. The tribological properties of the cold-rolling emulsion doped with nano-Fe3O4 nanoparticles were evaluated by using a four-ball machine. The phase composition and microstructure of nano-Fe3O4 nanoparticles were analyzed by means of X-ray diffraction (XRD) and transmission electron microscopy (TEM). The worn surfaces of the steel balls were observed by using an optical microscope (OM). Besides, the lubricity of the cold-rolling emulsion doped with nano-Fe3O4 nanoparticles for steel strip was evaluated on a cold-rolling tester by using the emulsion without nano-Fe3O4 nanoparticles as a reference. Results indicated that Fe3O4 nanoparticles as an additive in a cold-rolling emulsion were able to significantly improve the friction-reducing, antiwear, and extreme pressure properties of the base stock. Meanwhile, Fe3O4 nanoparticles also showed good lubricity to the cold-rolled steel strips. Namely, the steel strips cold-rolled under the lubrication of the cold-rolling emulsion containing nano-Fe3O4 nanoparticles possessed considerably decreased after-rolling thickness and improved surface quality as well.

     

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