PROBLEM TO BE SOLVED: To provide a method for simply evaluating a physical property of a fine particle compression molding, and to specifically provide an evaluation method for preliminarily predicting troubles such as a crack, breakage, and abrasion when the fine particles are made into a compression molding via evaluation of the fine particles.SOLUTION: In a method, strength of a compression molding to be obtained by performing compression molding of fine particles is evaluated by measuring the residual mortar inner wall contact pressure when the fine particles are compressed with two or more compressive loads and using difference in the residual mortar inner wall contact pressure as an index.COPYRIGHT: (C)2012,JPO&INPIT【課題】粉体圧縮成形物の物性を簡易に評価する方法を提供する。具体的には、粉体の評価を介して、該粉体を圧縮成形物とした場合の割れ、破損、摩損などのトラブルを事前に予測することができる評価方法を提供する。【解決手段】2以上の圧縮荷重で粉体を圧縮したときの残留臼内壁面圧を測定し、該残留臼内壁面圧の差を指標として、該粉体を圧縮成形して得られる圧縮成形物の強度を評価する方法。【選択図】図1
