Back to results
US 2007/0182071 A1Published application
Rtm molding method and device
AssigneeToray Industries, Inc.
InventorsToshihide Sekido, Shigeo Iwasawa, Tatsuya Senba
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeToray Industries, Inc.
InventorsToshihide Sekido, Shigeo Iwasawa, Tatsuya Senba
Estimating the term…
An RTM molding method comprising disposing a reinforcing fiber substrate in a cavity of a mold consisting of a plurality of dies, clamping the mold, and thereafter injecting resin to complete molding, characterized in that divided areas with respect to the surface direction of the reinforcing fiber substrate are assumed, each divided area is one in which injected resin expands over the entire surface in the area and can be substantially uniformly impregnated in the thickness direction of the substrate, and resin introducing paths are formed for respective assumed divided areas for introducing the injected resin into the respective divided areas; and an RTM molding device. When a relatively large molded product is to be molded, a molding step from resin injection to impregnating/curing can be implemented at high speed without generating a non-resin-flowing area, thereby enabling a high-quality molded product to be produced free from voids, etc., with a molding time shortened and production speed and volume increased.
An RTM molding method comprising the steps of disposing a reinforcing fiber substrate in a cavity of a mold consisting of a plurality of dies, clamping said mold, and thereafter injecting resin to complete molding, characterized in that divided areas with respect to a surface direction of said reinforcing fiber substrate are assumed, each divided area is one in which injected resin expands over the entire surface in said each divided area and can be substantially uniformly impregnated in a thickness direction of said substrate, and resin introducing paths are formed for respective assumed divided areas for introducing the injected resin into said respective divided areas.
An RTM molding device for disposing a reinforcing fiber substrate in a cavity of a mold consisting of a plurality of dies, clamping said mold, and thereafter injecting resin to complete molding, characterized in that divided areas with respect to a surface direction of said reinforcing fiber substrate are assumed, each divided area is one in which injected resin expands over the entire surface in said each divided area and can be substantially uniformly impregnated in a thickness direction of said substrate, and resin introducing paths are formed for respective assumed divided areas for introducing the injected resin into said respective divided areas.
Dependencies are inferred from the claim text.