Circular economy strategies encourage, among others, concrete actions to extend the product lifetime. Product's repair and reuse, and component harvesting for reuse, all require the facilitated access to product components. Consequently, a reduction of the disassembly time and the related costs will increase the economic feasibility of product lifetime extension and therefore increase the viability of a circular economy in industrialised regions. Furthermore, disassembly has the potential to significantly increase the recycling yield and purity for precious metals, critical metals and plastics. For this reason, the European Commission and several ecolabels have considered to include design for disassembly requirements in legislation or voluntary environmental instruments. However, up to date, there is no standardised method to evaluate the ease of disassembly in an unambiguous manner with a good trade-off between the efforts required to apply the method and the accuracy of the determined disassembly time. The article proposes a robust method "eDiM" (ease of Disassembly Metric), to calculate the disassembly time based on the Maynard operation sequence technique (MOST). A straightforward calculation sheet is employed in eDiM to calculate the disassembly time given the sequence of actions and basic product information. This makes the results fully verifiable in an unambiguous manner, which makes eDiM suited to be used in policy measures in contrast to the results of prior developed methods One of the innovative aspects of eDiM is the categorization of disassembly tasks in six categories, which provides better insights on which disassembly tasks are the most time consuming and how the product design could be improved. The proposed method is illustrated by means of a case study of an LCD monitor. The presented case study demonstrates how the proposed method can be used in a policy context and how the calculated disassembly times per category can provide insights to manufacturers to improve the disassemblability of their products. The results also demonstrate how the proposed method can produce realistic results with only limited detail of input data.

中文翻译：

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易于拆卸产品以支持循环经济策略。

循环经济战略尤其鼓励采取具体措施来延长产品寿命。产品的维修和重复使用，以及为了重新使用而收集组件，都需要方便地访问产品组件。因此，减少拆卸时间和相关成本将增加延长产品寿命的经济可行性，并因此增加工业化地区循环经济的可行性。此外，拆卸有可能显着提高贵金属，关键金属和塑料的回收率和纯度。因此，欧洲委员会和一些生态标签已考虑在立法或自愿性环境文书中包括拆卸要求的设计。但是，到目前为止 没有标准化的方法可以明确地评估拆卸的难易程度，并且在应用该方法所需的努力与确定的拆卸时间的准确性之间进行了很好的权衡。本文提出了一种鲁棒的方法“ eDiM”（易拆卸度量），以基于Maynard操作序列技术（MOST）来计算拆卸时间。在给定动作顺序和基本产品信息的前提下，eDiM中使用了简单的计算表来计算拆卸时间。这使得结果可以以明确的方式完全可验证，这使得eDiM与以前开发的方法的结果形成对比，适合用于政策措施。eDiM的创新之处之一是将拆卸任务分为六类，这样可以更好地了解哪些拆卸任务最耗时，以及如何改进产品设计。通过液晶显示器的案例研究说明了所提出的方法。提出的案例研究说明了如何在政策环境中使用所提出的方法，以及每个类别的拆卸时间如何可以为制造商提供见解，以改善其产品的可拆卸性。结果还证明了所提出的方法如何仅用有限的输入数据细节就能产生逼真的结果。提出的案例研究说明了如何在政策环境中使用所提出的方法，以及每个类别的拆卸时间如何可以为制造商提供见解，以改善其产品的可拆卸性。结果还证明了所提出的方法如何仅用有限的输入数据细节就能产生逼真的结果。提出的案例研究说明了如何在政策环境中使用所提出的方法，以及每个类别的拆卸时间如何可以为制造商提供见解，以改善其产品的可拆卸性。结果还证明了所提出的方法如何仅用有限的输入数据细节就能产生逼真的结果。