关键词: 低碳铸造, 碳效率, 工序碳源, 自身优势度, 砂型铸造

Abstract: To evaluate validity of the carbon efficiency scientifically,carbon efficiency validity model based on self-advantage for sand casting was established.Through summary the feature of sand casting,process carbon sources and carbon efficiency of sand casting were built.With analyzing process of sand casting,five process carbon sources and four-dimensional carbon efficiency were proposed.The validity level quantification method of carbon efficiency based on self-advantage was introduced by analyzing process carbon sources.Thus the validity evaluation of sand casting technical improvement was implemented.The validity as well as the practicality of the proposed methodology was demonstrated with the technical remolding solution of sand casting.

Key words: low-carbon casting, carbon efficiency, process carbon sources, self-advantage, sand casting