Żelazny Sylwester, Żukowski Witold, Bogdał Dariusz, Bednarz Szczepan, Kasprzyk Wiktor, Świergosz Tomasz
Department of Inorganic Chemistry, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland.
Department of Biotechnology and Physical Chemistry, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland.
Materials (Basel). 2020 Dec 8;13(24):5600. doi: 10.3390/ma13245600.
Superalloys provide high corrosion resistance and are widely used as high-performance materials in aerospace, automotive, chemical, and other industries. Herein, the investigation into the characteristics and properties of alloy waste; Inconel 625, Inconel 718, and Titanium Grade 5, from the automotive industry, was introduced as a result of a recovery in various processes. For this reason, the following procedures were carried as follows; the washing process to remove oil from the swarf was evaluated using several commercial agents and for the process of thermal disposal of processing fluids, a temperature of 900 °C was used in a muffle furnace without air access. The presented studies show that the commercially available series of washing agents did not modify the composition of the surface. However, the high temperatures during the calcination of oil residues are affecting the elemental composition of the alloys. According to the results of the analyses, it is not possible to remove 100% of the oil residues from alloy waste using washing agents based on light organic fractions; however, the effectiveness of this method reaches 99%. In this report, accurate SEM-EDS analyses show changes that occur on the surface after machining and removal of processing fluids. The NMR and GC/MS investigations indicate contaminants as a mixture of aliphatic and cycloaliphatic hydrocarbons with carbon numbers from C8-C30.
超级合金具有高耐腐蚀性，在航空航天、汽车、化工等行业被广泛用作高性能材料。在此，介绍了对汽车行业合金废料（因科镍合金625、因科镍合金718和钛5级）在各种回收过程中的特性和性能的研究。因此，进行了以下步骤：使用几种商业试剂评估从切屑中去除油污的清洗过程，对于加工液的热处理过程，在无空气进入的马弗炉中使用900℃的温度。所呈现的研究表明，市售系列清洗剂不会改变表面成分。然而，油渣煅烧过程中的高温会影响合金的元素组成。根据分析结果，基于轻质有机馏分的清洗剂无法100%去除合金废料中的油渣；然而，该方法的有效性达到99%。在本报告中，精确的扫描电子显微镜-能谱分析显示了加工和去除加工液后表面发生的变化。核磁共振和气相色谱/质谱研究表明，污染物是碳数为C8 - C30的脂肪族和环脂肪族烃的混合物。
