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为在磨料磨损条件下工作的零件上涂覆高强度的涂层而使用可熔接的材料,是提高建筑、铁路和其他类型的贵重技术装备使用寿命的有前途的方向之一。但是,在研发它们的过程中,并不总是能遵守生态安全的要求,从而产生对自然环境和人类健康的负面后果。本文论述作者的研究小组就研发包覆有涂层的粉末的研究工作结果。这种包覆粉末是用化学气相沉积方法将镍的四羰基化物涂覆到氧化铝的颗粒表面上,并用它来获得耐磨的涂层。使粉末材料的金属化是采用一种封闭的循环来实现的,从而避免了工作人员与有毒物质的接触,以及避免了将污染物质排放到大气中去,保证了生产过程的安全性,同时获得了具有必要的物理-机械性能的等离子涂层,显示出了该涂层的有效性,以及有助于延长承受磨料磨损的机器工作部件的使用寿命。
The use of fusible materials to coat high-strength coatings on parts that operate under abrasive conditions is one of the promising directions to increase the useful life of buildings, railways and other types of valuable technical equipment. However, in developing them, it is not always possible to comply with the requirements of ecological security and thus have negative consequences for the natural environment and human health. This article discusses the authors’ work on research and development of coated powders. This coated powder was prepared by chemical vapor deposition of nickel tetracarbonyl onto the surface of the alumina particles and using it to obtain a wear-resistant coating. Metallization of the powder material is achieved in a closed cycle, thereby avoiding contact with toxic substances and avoiding the release of pollutants into the atmosphere, ensuring the safety of the production process while obtaining The plasma coating, with the necessary physical-mechanical properties, shows the effectiveness of the coating as well as helping to prolong the service life of machine working parts that are subject to abrasive wear.