Application of Consolidation Method to the Recycling of Grinding Swarf of Bearing Steel.

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  • ベアリング鋼研削加工屑リサイクルヘの圧縮成型法の適用
  • ベアリング コウ ケンサク カコウクズ リサイクル エ ノ アッシュク セイケイホウ ノ テキヨウ

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This paper deals with the recycling of bearing steel grinding swarf by high-density consolidation. The grinding swarf was compacted at the pressing pressure from 98 to 588 MPa. The maximum density of 5.41 g/cm3 was obtained at the pressing pressure of 588 MPa. Metal recovery rate that is one of the most important factors in metal recycling depended on the density of the grinding swarf briquet. The metal recovery rate of about 90% was obtained at the density of 4.8 g/cm3. Chemical compositions of original bearing steel (SUJ 2) and recycled metals obtained from melting of grinding swarf briquets in air and Ar were evaluated.

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