材料の組み合わせと劣化を考慮したリサイクル性評価手法(機械要素,潤滑,工作,生産管理など)

概要

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In this paper, a new method of recyclability evaluation is proposed. In this method, the recyclability of a product is given by summing up recyclabilities of all units to which the product is manually disassembled. The recyclability of a unit is calculated, if all names and amounts of materials of which the unit is composed are known. The recyclability of a disassembled unit, consisting of multiple materials, is judged on the grounds of removability of impurities, miscibility and marketability of polymer blends. Recyclability of a long-lifetime product can be estimated from recvclabilities of units, which are modeled as probabilistically distributed degradation of materials. The proposed method is applied to recyclability evaluation for a refrigerator with several scenarios of disassembly levels. The practical disassembly scenarios limit maximum recyclability rate of the product. Therefore recyclability rates calculated based on the proposed method are considerably lower than those of the recyclable materials of which the product consisted.
社団法人日本機械学会の論文
2005-01-25