| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a method for producing a preform, with which a three-dimensional fiber structure (preform) is continuously produced from a reinforcing fiber laminate using a substrate for RTM and a production apparatus and to obtain a preform obtained from the apparatus and an FRP. <P>SOLUTION: In a production method with which a reinforcing fiber structure is integrated by using a reinforcing fiber laminate which is a reinforcing fiber laminate obtained by laminating and integrating a plurality of reinforcing fiber substrates comprising arranged reinforcing fiber yarns and which has a resin material consisting essentially of a thermoplastic resin between layers of the reinforcing fiber substrates and in which at least a plurality of the reinforcing fiber laminates are wholly integrated in the thickness direction, the method for producing a preform comprises a process (A) of a primary integration process for forming a projected reinforcing fiber structure integrated with a projection on the surface of the reinforcing fiber laminate, a process (B) of a positioning process for positioning the projection of the projected reinforcing fiber structure by integration as a base on a recessed part and a process (C) a secondary integration process for integrating the positioned projected reinforcing fiber structure. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
