Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of fiber reinforced resin

A fiber reinforced resin and resin technology, applied in the direction of coating, can solve the problems of deterioration of surface design and formation of resin-enriched parts, etc., and achieve the effects of curing shrinkage suppression, arrangement disorder suppression, and improvement of surface appearance.

Active Publication Date: 2016-01-27
TORAY IND INC
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, especially in the RTM molding using the multi-point injection method, the formation of the resin-rich part due to the pressing down of the reinforcing fiber base material directly below the injection port as described above is likely to cause the surface to be damaged. Causes of Design Deterioration

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of fiber reinforced resin
  • Preparation method of fiber reinforced resin
  • Preparation method of fiber reinforced resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Embodiments of the present invention will be described below with reference to the drawings.

[0030] figure 1 A method for producing a fiber-reinforced resin according to an embodiment of the present invention is shown. In the molding die 3 formed by the upper mold 1 and the lower mold 2, a reinforcing fiber base material 4 formed of, for example, a laminate of a plurality of reinforcing fiber materials is arranged, and the reinforcing fiber base material 4 is opened from a direction facing one surface of the reinforcing fiber base material 4. The injection port 5 of the upper mold 1 is injected with a resin serving as a matrix resin of the fiber-reinforced resin to be molded, and the injected resin is impregnated into the reinforcing fiber base material 4 . A space 6 for passing the injected resin is formed in the reinforcing fiber base material 4 in the molding die 3 by at least partially removing in advance the portion of the reinforcing fiber base material direct...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method for producing a fiber-reinforced resin. The method comprises injecting a resin into a reinforcing fiber base material arranged in a molding die from an injection port opened in a direction facing the surface of the reinforcing fiber base material to impregnate the reinforcing fiber base material. In the base material, the production method is characterized in that a portion of the reinforcing fiber base material located directly below the injection port is removed in advance at least partially in the thickness direction, thereby forming an injection in the reinforcing fiber base material in the molding die. The space for resin passage allows the resin injected from the injection port to impregnate the reinforcing fiber base material through the space for resin passage. By forming a space for the injection resin to pass through in the reinforcing fiber base directly below the injection port, the downward pressure on the surface of the reinforcing fiber base due to the injection of resin can be suppressed, the resin layer on the surface can be reduced, and excellent productivity can be maintained. While improving the design of the surface of the molded product.

Description

technical field [0001] The present invention relates to a method for producing fiber reinforced plastic (FRP: Fiber Reinforced Plastic), and more particularly to a method for preparing fiber reinforced resin impregnated in a reinforced fiber base material by injecting the resin from an injection port opened in a direction facing the surface of the reinforced fiber base material improvement. Background technique [0002] When impregnating the matrix resin for FRP molding into the reinforcing fiber base material arranged in the cavity of the molding die formed by a plurality of molds, especially the reinforcing fiber base material with a large surface area, in order to shorten the molding time and reduce the production cost Reduction of reduction, improvement of productivity, etc., known RTM (resin transfer molding, Resin Transfer Molding) method using the so-called multi-point injection method, the multi-point injection method approximately simultaneously from the direction f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B29C39/24B29C39/10B29K105/08
CPCB29C70/48B29C70/547B29C45/14631B29K2105/08
Inventor 山本晃之助辻诚司北川将士
Owner TORAY IND INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com