Three-dimensional braided composite material propeller blade of ship and manufacturing method thereof

A technology of three-dimensional weaving and composite materials, which is applied in the direction of rotating propellers and rotating propellers, can solve problems such as poor bonding strength, and achieve the effects of improved strength and rigidity, high material uniformity and dimensional precision, and high production efficiency

Active Publication Date: 2015-07-01
山东宽原新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a three-dimensional braided composite material propeller blade for ships and its preparation method. Through the proportion matching of various fibers, the mechanical properties of the propeller bl

Method used

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  • Three-dimensional braided composite material propeller blade of ship and manufacturing method thereof
  • Three-dimensional braided composite material propeller blade of ship and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0032] figure 1 It is a structural schematic diagram of the core mold of the propeller blade of the present invention, and the core mold includes a core mold main body 1 and a structural reinforcement part 2 arranged on the core mold main body. The three-dimensional braided structure of the propeller blade of the present invention is based on figure 1 The mold structure in the weaving molding.

[0033] Such as figure 2 As shown, a propeller blade of a three-dimensional braided composite material for a ship includes an internal three-dimensional braided structure and a resin layer impregnated and cured on the three-dimensional braided structure, and the three-dimensional braided structure includes a main body of the three-dimensional braided structure Part 3, the reinforced structure part 4 of the three-dimensional braided structure, and the high-density yarn stitching structure between the main body part 3 of the three-dimensional braided structure and the reinforced struct...

Embodiment 2

[0037] based on figure 1 The core mold in the hybrid fiber three-dimensional braided preform is prepared, such as figure 2 As shown, the main part 3 of the three-dimensional braided structure uses T300 carbon fiber and Kevlar29 aramid fiber hybrid yarn for mixed weaving, and the reinforcing structure part 4 of the three-dimensional braided structure uses two hybrid combinations of Kevlar49 aramid fiber and T700 carbon fiber. . The overall three-dimensional braided propeller blade has a length of 5m and a width of 1.2m.

[0038] The hybrid fiber blade preform after three-dimensional weaving uses phenolic resin glue as the base material, and the VARI vacuum introduction process is used to fully impregnate the above blade preform with the glue, and the vacuum degree of the entire impregnation and compounding process is kept at 0.1MPa. The resin-impregnated blades were cured at 120°C for 4 hours and then molded, with the glue content kept at 40%.

Embodiment 3

[0040] based on figure 1 The core mold in the hybrid fiber three-dimensional braided preform is prepared, such as figure 2 As shown, the main part 3 of the three-dimensional braided structure uses T700 carbon fiber and Kevlar49 aramid fiber hybrid yarn for mixed weaving, and the reinforcing structure part 4 of the three-dimensional braided structure can choose Kevlar29 aramid fiber and T800 carbon fiber. combination. The length of the propeller blade after overall three-dimensional weaving is 4m and the width is 0.8m.

[0041]The hybrid fiber blade prefabrication after three-dimensional weaving uses epoxy resin glue as the base material, and the VARI vacuum introduction process is used to fully impregnate the above blade prefabrication with the glue, and the vacuum degree of the entire impregnation composite process is kept at 0.06MPa. The resin-impregnated blades were cured at 90°C for 2.5 hours and then molded, with the glue content kept at 35%.

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Abstract

The invention discloses a three-dimensional braided composite material propeller blade of a ship and a manufacturing method thereof. A design of a core mode for supporting of a preform is conducted according to the requirement of marine power, and the design comprises determination of a blade main structure and specific strengthening part structures; according to the structure of the core mode and the strengthening design requirement, the category of a high performance fiber and a key characteristic of hybrid fiber yarn are determined, and the manufacturing of the hybrid fiber yarn is performed; the hybrid fiber yarn is adopted and the three-dimensional braided technology is applied to conduct continuous braiding forming of the propeller blade hybrid fiber preform; thermosetting resin adhesive glue solution is taken as a substrate, a vacuum infusion technology and a thermosetting process are adopted to conduct resin impregnation and vacuum solidification treatment on the hybrid fiber blade preform, and the three-dimensional braided propeller blade of the ship is obtained. The application of the three-dimensional braided structure and the combined process of the vacuum infusion and the thermosetting improve the strength of the propeller blade, and the production efficiency of the blade is effectively improved.

Description

technical field [0001] The invention specifically relates to a three-dimensional braided composite material propeller blade for ships and a preparation method thereof. Background technique [0002] Propellers are key power mechanical components on military or civilian ships. The processing cost of traditional metal propellers is high, and the propeller materials of metal alloys are susceptible to corrosion, cavitation damage and fatigue damage, etc., because composite propellers have many advantages such as light weight, high rigidity, high strength and strong resistance to seawater corrosion, Therefore, more and more people pay attention to it. Among them, the blade part is the main component that determines the dynamic stability of the entire propeller. In order to improve the overall maneuverability of the ship, many countries have been developing propeller blades made of new composite materials for more than ten years, especially for the structural strength of composite...

Claims

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Application Information

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IPC IPC(8): B63H1/26B29C70/48B29C70/54
Inventor 朱波王宝刚曹伟伟乔琨
Owner 山东宽原新材料科技有限公司
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