锻压技术

复合镀层轧辊摩擦磨损性能研究

英文标题：Investigation on frictional wear property for composite coating rolls

作者：卫芳芳张少睿

单位：上海交通大学

关键词：复合镀层轧辊耐磨性

分类号：TG333.17

出版年,卷(期):页码：2016,41(5):121-125

摘要：

利用电沉积规律，试制出了粗糙度Ra=1.6 μm，峰值密度Pc=140个/cm；Ra=2.0 μm，Pc=140个/cm；Ra=2.5 μm，Pc=130个/cm以及Ra=3.4 μm，Pc=120个/cm等多组镀层，并对材料结构参数进行了实验测定。结果表明：使用相同的电沉积参数和镀液成分可以制备出表面特征、结构和性能均一致的镀层；镀层表面形成了半球形的凸包，凸包尺寸为20~30 μm，凸包周边的低洼区域形成润滑油坑，减轻了轧制和冲压过程中轧辊、模具与工件之间的摩擦，保证了成形件良好的表面质量。利用MM-200摩擦磨损试验机，研究了滑动条件下轧辊的摩擦磨损性能。研究表明: 在摩擦过程中，镀层与钢板结合力良好，无起皮、脱落、破损等情况发生；钢块的磨损程度随镀层表面粗糙度下降而逐渐减弱。

Multi-group coating of different roughness and peak density were successfully trial-produced through grasping the law of electro deposition, such as Ra=1.6 μm, Pc=140 peaks per centimeters; Ra=2.0 μm, Pc=140 peaks per centimeters; Ra=2.5 μm, Pc=130 peaks per centimeters and Ra=3.4 μm, Pc=120 peaks per centimeters, and the material structure parameters were measured. The results show that the coatings with the same surface feature, structure and performance can be produced by the same electro deposition parameters and composition of plating solution, and hemispherical convex hulls with 20-30 μm appear in the coating surface. Furthermore, the low-lying areas around the convex hulls form lubricant pit, and the friction between rolls, moulds and workpiece is reduced, and the good surface quality of the forming parts is ensured. The frictional wear property of composite coating rolls was studied by the friction wear testing machine MM-200. The results show that during the frictional process, the coating combines with the steel plate well without flaking and wear, etc. The wear of steel plate decreases gradually with the decrease of the coating surface roughness.

基金项目：

国家高技术研究发展计划（2013AA031604）

卫芳芳（1989-），女，硕士研究生张少睿（1974-），女，博士，副教授

参考文献：

［1］颜永根. 冷轧辊表面毛化技术现状与进展[J]. 宝钢技术, 1995, (6): 45-50. Yan Y G. Status and progress in texturing of cold rolls [J]. Bao Steel Technology, 1995, (6): 45-50.
［2］周家琮. 冷轧轧辊毛化技术[J]. 钢铁钒钛, 1996, 17(3): 1-9.Zhou J C. Texturing technology used for cold roll[J]. Iron Steel Vanadium Titanium, 1996, 17(3): 1-9.
［3］曹国辉, 赵万生. 冷轧辊毛化技术的对比研究[J]. 电加工与模具, 2002, (4): 1-5.Cao G H, Zhao W S. Contrastive study of texturing technology used for cold roll[J]. Electromachining & Mould, 2002, (4): 1-5.
［4］Dolmatov V Y, Fujimura T, Burkat G K, et al. Preparation of wear-resistant chromium coatings using different types of nanodiamonds[J]. Powder Metallurgy and Metal Ceramics, 2003, 42(11-12): 587-591.
［5］孙大乐, 姚利松, 范群, 等. 不同毛化工艺冷轧辊的使用性能研究[A]. 中国金属学会2005全国轧辊技术研讨会[C]. 丽江, 2005.Sun D L, Yao L S, Fan Q, et al. Research on service performances between different textured cold rolls[A]. The Chinese Society for Metals, National Rolling Technology Seminar, 2005 [C].Lijiang,2005.
［6］Wilson G, Parker C. The use of EDT textured rolls in a wide range of applications [J]. Iron & Steelmaker, 2003, 30(1): 19-24.
［7］Shafik M, Knight J, Abdalla H. Development of a new generation of electrical discharge texturing system using an ultrasonic motor[A].Proceedings of the 13th International Symposium for Electro Machining (ISEM) [C].Spain, 2001.
［8］谭勇, 刘常升, 于晓中. 颗粒复合电沉积对材料表面粗糙度的影响[J]. 钢铁钒钛, 2012, 33(1): 87-90.Tan Y, Liu C S, Yu X Z. Effect of grain composite electrodeposition on roughness of metal surface[J]. Iron Steel Vanadium Titanium, 2012, 33(1): 87-90.

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