摘要
为探究轮胎模具类金刚石(DLC)涂层的应用前景,提高模具表面的硬度和疏水性,按照模具加工工艺制备35钢基体试样,利用电弧离子镀在基体上沉积无氢DLC涂层,对涂层粗糙度、三维表面形貌、断面结构、元素组成及含量、Raman光谱、纳米硬度和疏水性进行了分析。结果表明:通过改变粗糙度可以改善涂层的疏水性,涂层疏水性随粗糙度增大而显著增加,水接触角最高可达96°,且涂层硬度可达30.3 GPa。无氢DLC涂层可满足轮胎模具耐磨性和易清洁的使用要求,为制造高性能轮胎模具提供了一种可行的工艺选择。
In order to explore the application prospect of diamond-like carbon (DLC) coating on tire mold and improve the hardness and hydrophobicity of the tire mold surface,according to tire mold technological processes,35 steel matrix specimen was prepared and hydrogen-free DLC coating on 35 steel substrate was deposited by arc ion plating.The three-dimensional topography,section topography,element components,Raman spectroscopy,nano-hardness,elastic modulus and hydrophobicityof hydrogen-free DLC coatings were analyzed.Results showed that the hydrophobicity of the coating increased gradually with the increase of roughness.The water contact angle and nano-hardness of hydrogen-free DLC coating reached 96° and 30.3 GPa,respectively.Hydrogen-free DLC coating met the requirements of wear resistance and easy cleaning for the tire mold,therefore,this work provided achoice of the feasible process for manufacturing high performance tire mold.
出处
《材料保护》
CSCD
北大核心
2017年第6期91-94,共4页
Materials Protection
基金
国家自然科学基金(51375284)资助
关键词
无氢DLC涂层
涂层制备
涂层表征
轮胎模具
hydrogen-free diamond-like carbon coating
coating preparation
coating characterization
tire mold