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废旧品作为再制造的对象,其拆卸后的废旧零部件是否适合再制造,需要进行可再制造性评价,而且每个废旧零部件可再制造的程度与其采用的工艺路线相关。针对废旧零部件的材料特征、失效形式和失效程度等均具有高度不确定性的特点,以原产品制造数据和国家环境排放标准为基准,建立了面向工艺路线的废旧零部件可再制造性评价模型。模型包括竞争性因子评价和可持续性因子评价2个模块,采用层次分析法,分别从废旧零部件再制造的经济可行性、质量可行性、资源可行性和环境可行性等4个方面评价其可再制造度,并为适合再制造的废旧零部件选取最优的再制造工艺路线。最后,通过发动机废旧零部件可再制造性评价实例,证明了该评价方法能够有效地解决具体的、个性化的废旧零部件再制造的工程技术操作问题。
Waste products as the object of remanufacture, whether the disassembled waste components are suitable for remanufacturing, the reevaluation needs to be carried out, and the degree of remanufacturing of each waste component is related to the process route adopted. Aiming at the characteristics of material characteristics, failure modes and failure degree of the used parts and components with high degree of uncertainty, based on the original product manufacturing data and the national environmental emission standards, the reusability evaluation of the used parts for the process route was established model. The model consists of two modules: competitive factor evaluation and sustainability factor evaluation. The AHP method was used to evaluate the economic feasibility, quality feasibility, resource feasibility and environmental feasibility of remanufacturing waste parts and components respectively Remanufacturability and select the best remanufacturing route for the remanufactured waste components. Finally, through the example of remanufacturing of waste engine parts, it proves that this method can effectively solve the engineering problems of specific and individual remanufacturing of waste parts and components.