Abstract
To meet the demands of the age when the environmental issue becomes more critical, a new measure to evaluate products from a viewpoint of environmental load is introduced. The measure, which is called LCA (environmental Life Cycle Analysis), gives quantitative evaluation of total environmental load of products from the stage of oremining of raw materials to the stage of disposal after their usage. Sintering materials of JIS standard and various kinds of PM steel were subjected to LCA in this research. Objects of analysis were the consumption of fossil fuel, CO2 emission, SO2 emision. NOx emission and dust emission during overall production stages. LCA presented that each PM materials had individual environmental load. The differences in sevral percentages of additives and that of sintering conditions brought relatively great changes of the environmental load.
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