Manufacturing method of fiber reinforced substrate, fiber reinforced substrate and method for producing shutter blade

摘要

Problem to be solved: to provide a fiber reinforced substrate difficult to warp and its manufacturing method, and a high precision shutter blade.Manufacturing method of fiber reinforced base material of the present inventionA first sheet material 1 having a unidirectionally oriented reinforcing fiber embedded in a thermoplastic resinA first step of preparing a strip shaped second sheet material 2 containing a thermoplastic resin andOn both sides of the second sheetA second step of arranging two first sheet materials 1 with aligned orientation of the reinforcing fibers andA second sheet material 2 having a first sheet material 1 disposed on both sides thereofBy passing between at least a pair of heating rollers 400The thermoplastic resin of the first sheet material 1 and the thermoplastic resin of the second sheet material 2 are meltedA third step of integrating the first sheet material 1 and the second sheet member 2 to obtain the strip reinforcing fiber 3 is provided.Diagram