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A method for manufacturing a carbon fiber composite material propeller by secondary molding

A technology of overmolding and composite materials, which is applied in the field of carbon fiber composite material propellers to achieve the effects of reasonable design, long life and simple process

Active Publication Date: 2016-02-10
常州神鹰碳塑复合材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Composite material propellers, especially carbon fiber composite material propellers, have been successfully assembled in super yachts or ships abroad, and the fuel consumption of the propellers has been reduced by nearly 10%, but there is no mature method of manufacturing composite material propellers in China

Method used

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  • A method for manufacturing a carbon fiber composite material propeller by secondary molding
  • A method for manufacturing a carbon fiber composite material propeller by secondary molding

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Embodiment Construction

[0046] The specific technical solutions of the present invention will be further described below with reference to the accompanying drawings, so that those skilled in the art can further understand the present invention, without limiting their rights.

[0047] A method for manufacturing a carbon fiber composite propeller with secondary molding, the steps are as follows,

[0048] 1. Preparation:

[0049] 1.1 Selection and processing of molds:

[0050] 1.1.1 Selection of mold: The mold is divided into upper and lower molds, both of which are metal molds; the mold meets the following conditions: ① fully consider the fluidity of the resin in the mold, and reasonably set the injection port and exhaust port; ② the strength of the mold High, small deformation, accurate size;

[0051] 1.1.2 Mold treatment: first use a cloth of soft material to wipe off the dust and oil stains on the surface of the mold, and wax evenly on the surface of the clean mold for at least 2-4 times to facili...

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Abstract

The invention discloses a two-time forming method for manufacturing a carbon fiber composite material propeller. The method comprises the following steps: selecting and treating a mold and materials; preparing carbon fiber prepreg from reinforced materials and resin by virtue of film coating, hot pressing, cooling, film lamination and winding; manufacturing a metal propeller hub by using a machining method; wrapping the shot-blast metal propeller hub with the carbon fiber prepreg; placing the compositely-molded propeller hub which serves as an insert in the center of a propeller metal mold; overlaying the whole propeller with twelve layers of reinforced materials one by one; performing mold closing, glue injection, solidification and after-treatment after overlaying. The propeller prepared from a carbon fiber composite material is high in specific strength, large in specific modulus, anti-fatigue, low in vibration, low in noise, light in weight, high in efficiency, anti-corrosion, easy to maintain and long in service life; the propeller hub is molded for the first time, and then the propeller is molded for the second time; the process is simple and mature, and the carbon fiber composite material propeller can be automatically produced.

Description

technical field [0001] The invention relates to a method for manufacturing a propeller made of carbon fiber composite material, in particular to a method for manufacturing a propeller made of carbon fiber composite material with secondary molding. Background technique [0002] Marine propellers have been mainly made of metal materials for a long time, and the influence of materials on propeller performance has been seldom considered. Metal materials have the characteristics of high hardness, small deformation, and high yield strength, which is the reason why they have been recognized for a long time. But at the same time, there are many unfavorable factors, such as poor damping performance, large water noise; heavy weight, which is easy to cause vibration of the transmission shaft; easy to appear cavitation corrosion and induced fatigue cracks, etc. Compared with traditional metal propellers, composite propellers, especially carbon fiber composite propellers, have high spec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/34B29C70/38
CPCB29C70/36B29C70/386B29C70/543B29C70/683B29C70/74
Inventor 徐艳张国良张建国徐存新许太尚
Owner 常州神鹰碳塑复合材料有限公司
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