セラミックスの射出成形における脱脂時のゆがみとその生成特性 : 機械要素,潤滑,工作,生産管理など

概要

論文の詳細を見る
In ceramics injection molding, large distortion sometimes occurs in de-waxing stage. It seems to be caused by visco-elastic property of material, that is, by relaxation of the latent strain due to polymer molecule elongation, which is generated in material in injection molding stage. In this paper a method of in-plane simple shear testing has been proposed and the latent strain and its relaxation property have been examined. The results are summarized as follows : (1) When shear strain is applied to a specimen and It is dewaxed, large distortion is caused by the relaxation of latent strain. (2) Latent strain due to shear loading and its relaxation process were examined and the expressions of them were obtained as the functions of material temperature and strain rate in shear loading stage. (3) Distortion in de-waxing stage was estimated by using those expressions and it was found to agree with an experimental result fairly well.
一般社団法人日本機械学会の論文
2001-05-25