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Carbon and fiber composite material artificial foot molding technology

A composite material and molding process technology, applied in the field of prosthetic foot molding, can solve the problems of parts prone to delamination, porosity, user injury, prosthetic foot failure, etc., and achieves strong designability, low porosity, and fatigue resistance. good performance

Inactive Publication Date: 2017-04-05
BAIMTEC MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a carbon fiber composite prosthetic foot molding process, which solves the problems in the prior art that defects such as delamination and pores are prone to occur in the workpiece, causing failure and damage of the prosthetic foot, and easily causing harm to the user.

Method used

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  • Carbon and fiber composite material artificial foot molding technology
  • Carbon and fiber composite material artificial foot molding technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 and figure 2 As shown, the carbon fiber composite prosthetic foot molding process in the present embodiment comprises the following steps:

[0036] (1) Prepreg

[0037] Prepregs include unidirectional carbon fiber prepregs and 3K carbon fiber woven cloth prepregs; the carbon fiber content of unidirectional carbon fiber prepregs is 190g / m 2 , the epoxy resin content is 34%; the carbon fiber content of the 3K carbon fiber woven cloth prepreg is 200g / m 2 , the epoxy resin content is 25%.

[0038] (2) cropping

[0039] According to the layup design of the part, the prepreg is cut out to the shape and number of layers required for the prosthetic foot, and each layer of prepreg is numbered in sequence; the prosthetic foot here includes the upper foot plate 1 and the lower foot plate 2.

[0040] (3) Paving

[0041] After the release agent is evenly coated on the mold and dried, the prepreg is laid layer by layer according to the laying order to form a b...

Embodiment 2

[0054] Such as figure 1 and figure 2 As shown, the carbon fiber composite prosthetic foot molding process in the present embodiment comprises the following steps:

[0055] (1) Prepreg

[0056] Prepregs include unidirectional carbon fiber prepregs and 3K carbon fiber woven cloth prepregs; the carbon fiber content of unidirectional carbon fiber prepregs is 224g / m 2 , the epoxy resin content is 42%; the carbon fiber content of the 3K carbon fiber woven cloth prepreg is 220g / m 2 , the epoxy resin content is 45%.

[0057] (2) cropping

[0058] According to the layup design of the part, the prepreg is cut out to the shape and number of layers required for the prosthetic foot, and each layer of prepreg is numbered in sequence; the prosthetic foot here includes the upper foot plate 1 and the lower foot plate 2.

[0059](3) Paving

[0060] After the release agent is evenly coated on the mold and dried, the prepreg is laid layer by layer according to the laying order to form a bl...

Embodiment 3

[0073] Such as figure 1 and figure 2 As shown, the carbon fiber composite prosthetic foot molding process in the present embodiment comprises the following steps:

[0074] (1) Prepreg

[0075] Prepregs include unidirectional carbon fiber prepregs and 3K carbon fiber woven cloth prepregs; the carbon fiber content of unidirectional carbon fiber prepregs is 207g / m 2 , the epoxy resin content is 38%; the carbon fiber content of the 3K carbon fiber woven cloth prepreg is 210g / m 2 , the epoxy resin content is 35%.

[0076] (2) cropping

[0077] According to the layup design of the part, the prepreg is cut out to the shape and number of layers required for the prosthetic foot, and each layer of prepreg is numbered in sequence; the prosthetic foot here includes the upper foot plate 1 and the lower foot plate 2.

[0078] (3) Paving

[0079] After the release agent is evenly coated on the mold and dried, the prepreg is laid layer by layer according to the laying order to form a b...

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Abstract

The invention provides a carbon and fiber composite material artificial foot molding technology. The technology comprises the following steps: 1, prepreging; 2, cutting; 3, paving and pasting; 4, packaging; 5, autoclave curing molding; and 6, machining. Composite material artificial feet produced through using the molding technology have the advantages of no layering defects, low porosity, high strength, good fatigue resistance, good damage safety performance and strong designability.

Description

technical field [0001] The invention relates to the technical field of prosthetic foot molding, in particular to a carbon fiber composite material prosthetic foot molding process. Background technique [0002] Prosthetic feet are walking aids for patients with disabled lower limbs. Every year, there are millions of patients with physical disabilities and lower limb amputations due to blood circulation disorders, diseases, inflammation, traffic accidents, wars and natural disasters. people, and there are new additions every year. In order to enable these people to stand again, walk and even participate in sports training and various types of sports games, artificial feet need to be installed. [0003] At present, the prosthetic feet produced by domestic manufacturers are mainly made of wood, thermoplastic and thermosetting resins, and their mechanical properties and service life are far inferior to the carbon fiber energy storage feet developed by large foreign prosthetic ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54C08L63/00C08K7/06C08K3/04
CPCB29C70/34B29C70/54B29L2031/7532C08K3/04C08K7/06C08L63/00
Inventor 张卷刘敏永刘艳孙晓芳陈卫芳
Owner BAIMTEC MATERIAL CO LTD
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