公开(公告)号：US11691312B2

公开(公告)日：2023-07-04

申请号：US16071223

申请日：2017-01-24

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Tsunehisa Miki ,  Masako Seki

IPC: B27M1/00 ,  B27M1/02 ,  B27N5/00 ,  B27N3/28

CPC classification number: B27M1/00 ,  B27M1/02 ,  B27N3/28 ,  B27N5/00

Abstract: In order to provide a method of molding plant-based material to mold three-dimensional shape of cross section for relatively long plant-based material while maintaining the continuity of original cell/tissue of the plant-based material by means of simple equipment and process, we obtained a long plant-based material of high density and high strength by continuously giving compressing/drawing deformation to the component tissue of the plant-based material toward the center direction while extruding the plant-based material via the extruding die having a prescribed extrusion ratio and die angle for a relatively long plant-based material long in the fiber direction.