EPP material eco-friendly large buoy manufacturing method and eco-friendly large buoy manufactured by this method

摘要

Disclosed is a method for manufacturing an eco-friendly large buoy of EPP material. The EPP material eco-friendly large buoy manufacturing method of the present invention relates to a method for manufacturing an eco-friendly large buoy formed by thermally welding and connecting a plurality of buoy structures to each other, (a) by injecting a foamed polypropylene (EPP) raw material into a mold Producing a pair of buoy structures, respectively; (b) arranging a pair of buoy structures facing each other in the longitudinal direction and then disposing the heating means therebetween; (c) applying heat to the pair of buoy structures by pressing the pair of buoy structures at a constant pressure in a direction approaching each other; And (d) after removing the heating means, pressing the pair of buoy structures again with a constant pressure to heat-bond them to each other to produce an extended buoy structure. According to the present invention, it is manufactured by foam molding using an EPP foaming agent, which is an eco-friendly material, and can be realized in an eco-friendly and large size by expanding the length by thermally welding a plurality of buoy structures to each other, and it is possible to reduce the weight compared to an injection material.