面向工艺路线的废旧零部件可再制造性评价

Assessment on remanufacturability of waste parts for process route

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 product is the object of remanufacturing,and its waste parts’ remanufacturability needs to be assessed before remanufacturing,and the remanufacturability for each waste part is relevant to the process route.According to those uncertain factors of waste parts in terms of different materials,failure types and failure degree,the assessment model of remanufacturability of waste parts for process route was established on the benchmark of the original manufacturing data and the national environmental emission standards.The model includs two sub-modules of competitive assessment model and sustainable assessment model,the remanufacturability of waste parts is assessed by analytic hierarchy process from four feasibility aspects of economic,quality,resources and environment respectively,and the optimal remanufacturing process routes are selected for waste parts which are suitable for remanufacturing.Finally,an example of remanufacturability assessment for waste engine parts is studied.The results show that the assessment method can solve engineering and technical operation of remanufacturing for specific,personality waste parts effectively.