Manufacturing method of reinforcing bar body

Provided is a method for producing a reinforcing bar body in which a thermoplastic resin material sufficiently permeates into a reinforcing fiber material and is integrated with the reinforcing fiber material to exhibit sufficient strength. The present invention is a method for manufacturing a reinforcing bar (Sc) in which basalt fibers (Fb) are impregnated with a polypropylene (PP) resin and integrated, the method comprising: passing non-flat bundle-shaped basalt fibers (Fb) through an accumulation tank (2) in which a liquid thermoplastic resin material is accumulated; the non-flat bundle-shaped basalt fibers (Fb) that have passed through the storage tank (2) are compressed into a flat state, PP resin is impregnated between the basalt fibers (Fb), and the flat basalt fibers (Fb) impregnated with the PP resin are bundled again into a non-flat bundle shape. 本发明提供一种热塑性树脂材料在增强纤维材料内充分地浸透并与其一体化而发挥足够的强度的钢筋棒体的制造方法。其是一种制造在玄武岩纤维(Fb)内含浸聚丙烯(PP)树脂并一体化而成的钢筋棒体(Sc)的方法，其中，使非扁平的束状的玄武岩纤维(Fb)在蓄积有液状的热塑性树脂材料的蓄积槽(2)内通过，并且在蓄积槽(2)内将