摘要:
A preform for the molding of a fiber-reinforced resin beam includes a reinforcing-fiber beam which has been formed from a reinforcing-fiber base made up of many reinforcing fibers and has a cross-sectional shape with at least one linear part and at least one curved part connected to the linear part; and a release sheet bonded and united through an adhesive resin to at least part of a surface of the reinforcing-fiber base along the lengthwise direction for the base. A process for producing a preform includes shaping a continuous flat reinforcing-fiber base having a release sheet bonded and united to a surface thereof so that the cross-sectional shape of the base has a curved part to thereby produce a preshaped object; and bonding and uniting the preshaped object to another preshaped object.
摘要:
A preform for the molding of a fiber-reinforced resin beam, the preform comprising: a reinforcing-fiber beam which has been formed from a reinforcing-fiber base made up of many reinforcing fibers and has a cross-sectional shape comprising at least one linear part and at least one curved part connected to the linear part; and a release sheet bonded and united through an adhesive resin to at least part of a surface of the reinforcing-fiber base along the lengthwise direction for the base. A process for producing a preform comprises: a step in which a continuous flat reinforcing-fiber base having a release sheet bonded and united to a surface thereof is shaped so that the cross-sectional shape of the base comes to have a curved part to thereby produce a preshaped object; and a preshaped-object uniting step in which the preshaped object is bonded and united to another preshaped object.
摘要:
A process for manufacturing a preform, and apparatus therefor, wherein a preform with a branched portion in its cross-section profile is continuously manufactured by delivering a raw form of reinforcing fiber base material with a branched portion in its cross-section profile, among multiple reinforcing fiber base materials for constructing the preform, intermittently in the longitudinal direction thereof; at each delivery discontinuation, performing heat and/or pressure application to the raw base material so as to tentatively obtain a preliminary shaped matter with given configuration; and uniting the obtained preliminary shaped matter with given configuration with raw forms of other reinforcing fiber base materials for constructing the preform.
摘要:
A process for manufacturing a preform, and apparatus therefor, wherein a preform with a branched portion in its cross-section profile is continuously manufactured by delivering a raw form of reinforcing fiber base material with a branched portion in its cross-section profile, among multiple reinforcing fiber base materials for constructing the preform, intermittently in the longitudinal direction thereof; at each delivery discontinuation, performing heat and/or pressure application to the raw base material so as to tentatively obtain a preliminary shaped matter with given configuration; and uniting the obtained preliminary shaped matter with given configuration with raw forms of other reinforcing fiber base materials for constructing the preform.