Method of molding plant-based material and molded body
AssigneeNational Institute of Advanced Industrial Science and Technology
InventorsTsunehisa Miki, Masako Seki
Life of this patent
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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.
Claims6
A method of molding a plant-based material, consisting of impregnating a surface of a plant-based material with a thermosetting resin, extruding the plant-based material in a longitudinal fiber direction via an extrusion die heated to 100° C. or higher and having a prescribed extrusion ratio, a die angle and a bearing portion for cylindrical shape fixing, by giving compressing/drawing deformation to a component tissue of the plant-based material continuously in a center direction of the plant-based material to achieve higher density and higher strength, and
- further optionally, before extruding, making a hole in the longitudinal fiber direction of the plant-based material, and adjusting a reduction in cross section in the longitudinal fiber direction when extruding to cause a bulk density distribution in the longitudinal fiber direction after molding, and controlling the weight and balance of a molded body obtained from the plant-based material, or
- further optionally, before extruding, making a hole in the longitudinal fiber direction of the plant-based material and incorporating dissimilar materials in the hole, and performing integral molding to arrange the dissimilar materials inside a molded body obtained from the plant-based material.
Dependencies are inferred from the claim text.