【摘要】：為了探究輪胎模具無氫類金剛石(DLC)涂層的摩擦學(xué)特性,增強輪胎模具的易脫模、防粘、自清潔性能以及提高輪胎質(zhì)量與服役壽命,以輪胎模具常用的35鋼為基體,利用電弧離子鍍在基體試樣上制備無氫DLC涂層,對涂層Raman光譜、表面粗糙度、表面微觀形貌、納米硬度、結(jié)合力和摩擦系數(shù)進行了分析,著重研究涂層摩擦前后表面微觀形貌的變化以及摩擦磨損機理。結(jié)果表明:通過改變表面粗糙度可以有效降低涂層的摩擦系數(shù),涂層摩擦系數(shù)隨粗糙度減小而顯著降低;在140℃高溫條件下,摩擦系數(shù)最小低至0.363 4,且涂層納米硬度可達32.45 GPa,彈性模量高達348.94 GPa。無氫DLC涂層完全滿足輪胎模具減摩耐磨和自清潔性的使用要求,為制造高性能輪胎模具提供了一種可行的工藝選擇。
[Abstract]:In order to investigate the tribological characteristics of hydrogen-free diamond-like carbon (DLC) coating on tire die, enhance the easy demoulding, anti-adhesion, self-cleaning performance of tire die and improve the quality and service life of tire, hydrogen-free DLC coating was prepared by arc ion plating on the substrate sample with 35 steel commonly used in tire mould. The Raman spectrum, surface roughness, surface micromorphology and nano-hardness of the coating were prepared. The adhesion and friction coefficient were analyzed, and the change of surface morphology and friction and wear mechanism of the coating before and after friction were studied. The results show that the friction coefficient of the coating can be effectively reduced by changing the surface roughness, and the friction coefficient of the coating decreases significantly with the decrease of roughness, and the minimum friction coefficient is as low as 0.363 4 at high temperature of 140 鈩，

本文編號：2508314