粉砕進行指数と粉砕正味仕事

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概要

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• In this paper, an index of friability or grindability is discussed from the standpoint of the energy required.Until crushing is initiated, the strain energy Ue necessary to the fracturing of geometrically similar bodies is directly proportional to the volume V of these bodies. The values of V/Ue=CII (cm3/kg cm) are called the Crushing Initiation Index.The methods to measure the net energy input to crushing in case of impact crushing and the slow compression crushing of prismatic specimens and powdery layers are stated in this paper.The net energy input (Ar/W0) evaluated in these methods is directly proportional to the specific surface increase ΔS. The values of ΔS/(Ar/W0)=CEI (cm2/kg cm) are called the Crushing Extension Index.The values of CII are found to be the characteristic values of friability of the materials, and CEI are to be those of grindability.

• 社団法人 日本材料学会の論文

著者

• 松居 国夫

  群馬大学工学部

関連論文

• 粉砕進行指数と粉砕正味仕事

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