PROCESS AND APPARATUS FOR PRODUCING REINFORCING-FIBER STRIP BASE HAVING CIRCULAR-ARC PART, AND MULTILAYER STRUCTURE, PREFORM, AND FIBER-REINFORCED RESIN COMPOSITE MATERIAL EACH COMPRISING OR PRODUCED USING THE BASE

• Main Authors: SUZUKI TAMOTSU, HANAWA TATSUYA
• Format: Patent
• Language: English; French; German
• Published: 25.12.2013
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BRAIDING; CHEMISTRY; COMPOSITIONS BASED THEREON; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; GENERAL PROCESSES OF COMPOUNDING; KNITTING; LACE-MAKING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING GRANULES OR PREFORMS; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; METALLURGY; NON-WOVEN FABRICS; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TRIMMINGS; WADDING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

Provided are a process and an apparatus for obtaining easily and securely a reinforcing-fiber strip substrate in which reinforcing-fiber yarns are laid throughout the whole surface of a curved substrate. The process and apparatus for producing a reinforcing-fiber strip substrate having a circular-arc part are characterized by : bringing one surface of a strip-shaped, unidirectional reinforcing-fiber substrate comprising reinforcing-fiber strands arranged in parallel with each other in one direction, into contact with a flexible member; deforming the unidirectional reinforcing-fiber substrate being contacted into a circular-arc shape by deforming at least a part of the flexible member into a circular-arc shape in a direction extending along its contact surface with the unidirectional reinforcing-fiber substrate; and thereafter, separating the flexible member from the unidirectional reinforcing-fiber substrate that has been deformed. Further, provided are a layered structure, a preform, and a fiber-reinforced composite material each comprising or produced using the substrate.