CN101549560A - Method for ultrasonic processing resin transfer molding and used device - Google Patents
Method for ultrasonic processing resin transfer molding and used device Download PDFInfo
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- CN101549560A CN101549560A CNA2009100720548A CN200910072054A CN101549560A CN 101549560 A CN101549560 A CN 101549560A CN A2009100720548 A CNA2009100720548 A CN A2009100720548A CN 200910072054 A CN200910072054 A CN 200910072054A CN 101549560 A CN101549560 A CN 101549560A
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Abstract
A method for ultrasonic processing resin transfer molding and a used device relate to a method of resin transfer molding and used device. The invention settles the problems of inferior product performance of RTM, no ultrasonic processing in prior RTM device and only ultrasonic procession for resin system caused by high viscosity of resin system and inferior wetting effect to the fiber matrix in prior RTM technique. The method of the invention is that the resin in the glue transporting pipe is executed with ultrasonic processing in the resin transfer molding technique. The device used in the method of the invention is composed of a gas cylinder, a gas transfer pipe installed with a valve, a glue storage tank, a glue transfer pipe, an ultrasonic connector, a mold, a glue collection pot, a vacuum pump, an ultrasonic device, and the pipe for connecting each component. The ultrasonic device and the glue transfer pipe according to the invention are connected through the ultrasonic connector. The method and device according to the invention can process all resin systems which are suitable for traditional RTM technique. The viscosity of resin system can be reduced for 44.4%, and the bending strength of RTM finished product is increased for 19.6%.
Description
Technical field
The present invention relates to a kind of method of resin transfer moulding and used equipment.
Background technology
Resin transfer moulding (RTM) is as a kind of advanced person's composite material process planning, and is low with its cost, shaping speed fast, good product quality, advantage and advanced process form that environmental pollution is little are subjected to extensive concern at home and abroad.
RTM is that a kind of manufacturing is large-scale, the very effective process of complicated shape composite element, wherein the dipping of resin, flow and mold filling process to the particular importance that influences of RTM technological forming composite property.Therefore, RTM technology has harsh requirement to resin viscosity, and requiring the resin viscosity scope is 0.1～1Pas, is generally 0.12～0.5Pas, and vacuum mo(u)lding is preferably lower than 0.2Pas.The low institute that can make resin be full of mould fast with less flow resistance of resin system viscosity is had living space, and helps the resin infiltration.Will cause bigger injection pressure even may not soak into fiber preform and viscosity is too high, thereby form a large amount of spaces and not impregnated zone, influence the end properties of RTM.Therefore, the viscosity of suitable reduction resin system has important effect to the RTM end product quality.
At resin system viscosity height, cause resin that the fiber wetness difference is made RTM end properties problem of unstable, the researcher has carried out a large amount of research respectively on RTM moulding technique and equipment.Reduce the most modes that adopt heating of process of resin system viscosity at present, but the heat treatment apparatus complexity, insulation requires high, and online matching is poor, and is big to energy resource consumption; And make easily resin system be heated inequality, cause resin viscosity inhomogeneous, influence the effect of impregnation may of resin, it is little that the RTM end properties improves effect.At the improvement of equipment, the researcher improves the structure of mould, perhaps adds Vltrasonic device at mold bottom, simultaneously fibrous matrix in the mould and resin is handled.The ultrasonic wave that utilizes Vltrasonic device to produce is handled fiber in the mould and resin, though gained finished product performance of composites is good, does not make substantial tangible improvement on the problem that resin system viscosity is handled.
Summary of the invention
The objective of the invention is in order to solve in the existing RTM technology because resin system viscosity height, itself and fibrous matrix effect of impregnation may are poor, cause the RTM end properties poor, and the problem that does not have directly and only carry out at resin system ultrasonic processing in the existing RTM equipment, the invention provides a kind of method of ultrasonic-processing resin transfer molding and used equipment.
A kind of method of ultrasonic-processing resin transfer molding is to continue the resin in the glue conveying box line is carried out ultrasonic processing in the resin transfer molding (RTM) process process among the present invention, and described ultrasonic power is 20～220W, and frequency is 20～100kHz.The equipment of the ultrasonic-processing resin transfer molding that method of the present invention is used, it is by air accumulator, the appendix that valve is housed, storage glue jar, glue conveying box line, ultrasonication joint, mould, collection glue jar, vavuum pump and Vltrasonic device, and the pipeline that is connected between above each parts forms, and Vltrasonic device is connected by the ultrasonication joint with the glue conveying box line among the present invention.
The method of ultrasonic-processing resin transfer molding adopts the ultrasonic wave that Vltrasonic device produced that the resin in the glue conveying box line is handled among the present invention, has reached the reduction resin viscosity, improves the purpose of resin effect of impregnation may.Principle of the present invention: the microbubble in the resin (cavitation nucleus) vibrates under the effect of sound field, show as the rapid expansion of bubble, suddenly closed then, the shock wave that produces when bubble is closed causes the high-speed motion of molecular resin, provide huge energy to molecular resin, make molecular resin have more energy to be converted into kinetic energy, promote resin flows, thereby the reduction resin viscosity improves the resin effect of impregnation may; Ultrasonic wave in the resin is absorbed by resin, and just resin has absorbed energy, simultaneously, because ultrasonic vibration, make the strand in the resin produce the strong higher-order of oscillation, strand phase mutual friction and generating heat, resin temperature is risen, thereby resin viscosity reduces, the resin effect of impregnation may improves.The present invention can handle all resin systems that are applicable to traditional RTM technology.The equipment of ultrasonic-processing resin transfer molding among the present invention, Vltrasonic device directly and is only handled at the resin in the glue conveying box line by the ultrasonication joint, and operation is simple, and is obvious to the treatment effect of resin viscosity, resin viscosity after the processing is even, makes the RTM end properties improve.In dull and stereotyped fabric of carbon fiber and poly-aryl ethane system, adopt the method for a kind of ultrasonic-processing resin transfer molding of the present invention and used equipment, in the RTM technical process, be after 120W and supersonic frequency are the lasting ultrasonication of 50kHz through ultrasonic power, poly-aryl ethane resin system viscosity reduces by 44.4%, carbon fiber three dimensional fabric/poly-aryl ethane composite bending strength improves 19.6%, and linear the ablation reduced more than 10%.After resin in the glue conveying box line carried out ultrasonic processing, the viscosity of resin reduced, and effect of impregnation may improves, and the RTM end properties improves.
Description of drawings
Fig. 1 is the structural representation of ultrasonic-processing resin transfer molding equipment of the present invention.
The specific embodiment
Technical solution of the present invention is not limited to the following cited specific embodiment, also comprises any combination between each specific embodiment.
The specific embodiment one: the method for a kind of ultrasonic-processing resin transfer molding of present embodiment, be in the resin transfer molding (RTM) process process, to continue the resin in the glue conveying box line is carried out ultrasonic processing, described ultrasonic power is 20～220W, and ultrasonic frequency is 20～100kHz.
In the present embodiment, resin system is after ultrasonic processing, and resin viscosity reduces by 44.4%, and the bending strength of RTM finished product improves 19.6%, and linearity is burnt and reduced more than 10%, and the RTM end properties improves.
The specific embodiment two: what present embodiment and the specific embodiment one were different is that ultrasonic power is 60～180W.Other parameter is identical with the specific embodiment one.
The specific embodiment three: what present embodiment and the specific embodiment one were different is that ultrasonic power is 100～150W.Other parameter is identical with the specific embodiment one.
The specific embodiment four: what present embodiment and the specific embodiment one were different is that ultrasonic power is 120W.Other parameter is identical with the specific embodiment one.
The specific embodiment five: what present embodiment was different with the specific embodiment one or two is that ultrasonic frequency is 30～80kHz.Other parameter is identical with the specific embodiment one or two.
The specific embodiment six: what present embodiment was different with the specific embodiment one or two is that ultrasonic frequency is 40～60kHz.Other parameter is identical with the specific embodiment one or two.
The specific embodiment seven: what present embodiment was different with the specific embodiment one or two is that ultrasonic frequency is 50kHz.Other parameter is identical with the specific embodiment one or two.
The specific embodiment eight: a kind of equipment that is used for the ultrasonic-processing resin transfer molding of the specific embodiment one described method of present embodiment, it is by air accumulator (1), the appendix (2) that valve (2-1) is housed, storage glue jar (3), glue conveying box line (4), ultrasonication joint (5), mould (6), collection glue jar (7), vavuum pump (8) and Vltrasonic device (9), and the pipeline (10) between each parts is formed more than connecting, and Vltrasonic device among the present invention (9) is connected by ultrasonication joint (5) with glue conveying box line (4).
The structure of ultrasonic-processing resin transfer molding equipment in the present embodiment, as shown in Figure 1.The ultrasonic wave that Vltrasonic device (9) produces carries out ultrasonic processing by ultrasonication joint (5) to the resin in the glue conveying box line (4), operation is simple, treatment effect to resin viscosity is obvious, resin viscosity reduces by 44.4%, the bending strength of RTM finished product improves 19.6%, linearity is burnt and is reduced more than 10%, and the RTM end properties improves.
The specific embodiment nine: what present embodiment and the specific embodiment eight were different is that ultrasonication joint (5) is fixed in by being threaded on the glue conveying box line (4).Other parameter is identical with the specific embodiment eight.
The specific embodiment ten: what present embodiment and the specific embodiment eight were different is top, below or the side that Vltrasonic device (9) is positioned at ultrasonication joint (5).Other parameter is identical with the specific embodiment eight.
The specific embodiment 11: present embodiment and the specific embodiment eight, nine or ten are different is that Vltrasonic device (9) is that the model of being produced by middle ship heavy industry No. 7 Institute 726 is the ultrasonic wave pulverizer of CQBF-200.Other parameter is identical with the specific embodiment eight, nine or ten.
The specific embodiment 12: present embodiment adopts the specific embodiment one, two or five method, the specific embodiment eight, nine or ten device fabrication carbon fiber/polyamide amine composite, carbon fiber/poly-aryl ethane composite, glass fibre/polyamide compoiste material, glass fibre/poly-aryl ethane composite or carbon fiber/unsaturated polyester composite.
The specific embodiment 13: present embodiment is that example is verified effect of the present invention with preparation carbon fiber three dimensional fabric/poly-aryl ethane composite, adopt the specific embodiment eight, nine or ten equipment, in the resin transfer molding (RTM) process process, continue the resin in the glue conveying box line (4) is carried out ultrasonic processing, the concrete parameter of implementing is: ultrasonic power is 120W, and ultrasonic frequency is 50kHz.
The viscosity of poly-aryl ethane resin system reduces by 44.4% in the present embodiment, and the bending strength of carbon fiber three dimensional fabric/poly-aryl ethane composite improves 19.6%, and linear the ablation reduced more than 10%.
Claims (10)
1, a kind of method of ultrasonic-processing resin transfer molding, the method that it is characterized in that ultrasonic-processing resin transfer molding continues the resin in the glue conveying box line (4) is carried out ultrasonic processing in the resin transfer molding (RTM) process process, described ultrasonic power is 20～220W, and ultrasonic frequency is 20～100kHz.
2, the method for a kind of ultrasonic-processing resin transfer molding according to claim 1 is characterized in that ultrasonic power is 60～180W.
3, the method for a kind of ultrasonic-processing resin transfer molding according to claim 1 is characterized in that hyperacoustic power is 100～150W.
4, the method for a kind of ultrasonic-processing resin transfer molding according to claim 1 is characterized in that hyperacoustic power is 120W.
5, the method for a kind of ultrasonic-processing resin transfer molding according to claim 1 and 2 is characterized in that frequency of ultrasonic is 30～80kHz.
6, the method for a kind of ultrasonic-processing resin transfer molding according to claim 1 and 2 is characterized in that frequency of ultrasonic is 40～60kHz.
7, the method for a kind of ultrasonic-processing resin transfer molding according to claim 1 and 2 is characterized in that frequency of ultrasonic is 50kHz.
8, the equipment of the used ultrasonic-processing resin transfer molding of the method for claim 1, it is by air accumulator (1), the appendix (2) that valve (2-1) is housed, storage glue jar (3), glue conveying box line (4), ultrasonication joint (5), mould (6), collection glue jar (7), vavuum pump (8) and Vltrasonic device (9), and the pipeline (10) between each parts is formed more than connecting, and it is characterized in that Vltrasonic device (9) is connected by ultrasonication joint (5) with glue conveying box line (4).
9, the equipment of a kind of ultrasonic-processing resin transfer molding according to claim 8 is characterized in that ultrasonication joint (5) is fixed on by being threaded on the glue conveying box line (4).
10, the equipment of a kind of ultrasonic-processing resin transfer molding according to claim 8 is characterized in that Vltrasonic device (9) is positioned at top, below or the side of ultrasonication joint (5).
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| CNA2009100720548A CN101549560A (en) | 2009-05-19 | 2009-05-19 | Method for ultrasonic processing resin transfer molding and used device |
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| CNA2009100720548A CN101549560A (en) | 2009-05-19 | 2009-05-19 | Method for ultrasonic processing resin transfer molding and used device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243162A (en) * | 2011-04-13 | 2011-11-16 | 天津工业大学 | Real time monitoring method for resin rheological property under action of ultrasound, and apparatus thereof |
| CN102990946A (en) * | 2012-11-20 | 2013-03-27 | 南京航空航天大学 | Method for adopting microwave ultrasound solidification fibre reinforced composite component and special device thereof |
| CN107283870A (en) * | 2017-08-01 | 2017-10-24 | 吉林大学 | Ultrasonic assistant compression molding fibrous composite device and forming method |
| CN108501406A (en) * | 2017-02-28 | 2018-09-07 | 株式会社斯巴鲁 | The manufacturing method of fiber reinforced composite material |
| US11065787B2 (en) | 2017-10-25 | 2021-07-20 | Subaru Corporation | Composite forming jig and composite forming method |
| CN114953511A (en) * | 2022-07-28 | 2022-08-30 | 中南大学 | Rapid forming method and device for carbon fiber reinforced thermoplastic composite material-metal composite component |
-
2009
- 2009-05-19 CN CNA2009100720548A patent/CN101549560A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243162A (en) * | 2011-04-13 | 2011-11-16 | 天津工业大学 | Real time monitoring method for resin rheological property under action of ultrasound, and apparatus thereof |
| CN102243162B (en) * | 2011-04-13 | 2013-01-02 | 天津工业大学 | Real time monitoring method for resin rheological property under action of ultrasound, and apparatus thereof |
| CN102990946A (en) * | 2012-11-20 | 2013-03-27 | 南京航空航天大学 | Method for adopting microwave ultrasound solidification fibre reinforced composite component and special device thereof |
| CN102990946B (en) * | 2012-11-20 | 2015-03-11 | 南京航空航天大学 | Method for adopting microwave ultrasound solidification fibre reinforced composite component and special device thereof |
| CN108501406A (en) * | 2017-02-28 | 2018-09-07 | 株式会社斯巴鲁 | The manufacturing method of fiber reinforced composite material |
| CN107283870A (en) * | 2017-08-01 | 2017-10-24 | 吉林大学 | Ultrasonic assistant compression molding fibrous composite device and forming method |
| US11065787B2 (en) | 2017-10-25 | 2021-07-20 | Subaru Corporation | Composite forming jig and composite forming method |
| CN114953511A (en) * | 2022-07-28 | 2022-08-30 | 中南大学 | Rapid forming method and device for carbon fiber reinforced thermoplastic composite material-metal composite component |
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Open date: 20091007 |