【摘要】 为了探究高性能轮胎模具DLC涂层的应用前景,提升轮胎模具耐磨减摩性,采用化学气相沉积法在35#钢基体上制备了厚约1.6μm的DLC涂层,利用SEM、AFM、Raman光谱仪、纳米压痕仪、端面摩擦磨损试验机对DLC涂层的表面微观结构和摩擦学性能进行了研究,试验及测试结果表明,用化学气相沉积法制备的DLC涂层表面光滑致密,颗粒细小均匀,粗糙度小;DLC涂层具有极好的抗磨减摩特性,比35#钢耐磨,纳米硬度和弹性模量高达20.27 GPa和184.63 GPa;在140℃高温条件下,摩擦系数低至0.454 4。DLC涂层优异的抗磨减摩特性可有效提高轮胎模具的工作性能-抗粘胶、易脱模、寿命长,为制造高性能DLC轮胎模具提供摩擦学方面理论依据。更多还原

【Abstract】 In order to explore the application prospect of DLC coating for tire mold of high performance,improving the wear and abrasion resistance of the surface of tire mold. DLC coating thickness of 1. 6 μm was prepared on 35# steel substrate by plasma-enhanced chemical vapor deposition. The surface microstructure and tribological properties of DLC coating was investigated by SEM,AFM,Raman spectroscopy,nano-indentation and end-face friction and wear tester. The results show that the surface of DLC coating prepared by PECVD is smooth and compact,the particles are fine and uniform,as well as,the roughness is small. The anti-wear and friction reducing properties of the DLC coating are excellent.The nano hardness and elastic modulus of DLC reaches to 20. 27 GPa and 184. 63 GPa,higher than 35# steel. And the friction coefficient of minimum is 0. 454 4 at 140 ℃. The excellent properties of anti-friction and wear resistance of DLC coatings can effectively improve the work performance of the tire mold,anti-viscose,easy-demoulding and life-long. This paper provides a theoretical basis for tribological properties of tire mold of high performance coated with DLC.更多还原