金属粉などの無公害処理と高付加価値利用に関する研究

Abstract

The advanced treatment for the grinding chips, industrial waste discharged from high speed grinding process, was investigated. This report consists of two parts, the first is the recovery of grinding metal chips and the other is the utilization of these grinding metal chips. The recovery process separates the metal from the grinding chips using an energy saved closed system. Experimental research on the grinding oil in the extractor is needed because there is no data in the field. Isopropyl alcohol was selected as extracting fluid. The second part of the study is the utilization of the grinding metal chips. New solid material made from the metal chips and epoxy resin is proposed. The new characteristic which grinding metal chips arranges was found out by giving a magnetic field while having solidified. The solid is researched electric resistance and strength. As the content of metal chips in the material increases, electric resistance decreases. Also electric resistance decreases at high magnetic flux field. The theoretical model was considered to estimate, the specific electric resistance from the content of metal chips in the material. Young's modulus of the solid was measured and the modulus shown high value to compared with raw resin. Considering the characteristic of new material stated above, it is possible to use electric heating device, such as toilet seat.