CN102765197B - Hot-press forming method for thermoplastic resin matrix braided composite materials - Google Patents
Hot-press forming method for thermoplastic resin matrix braided composite materials Download PDFInfo
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- CN102765197B CN102765197B CN201210216580.9A CN201210216580A CN102765197B CN 102765197 B CN102765197 B CN 102765197B CN 201210216580 A CN201210216580 A CN 201210216580A CN 102765197 B CN102765197 B CN 102765197B
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- thermoplastic resin
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Abstract
The invention discloses a hot-press forming method for thermoplastic resin matrix braided composite materials. The hot-press forming method includes the steps: firstly, manufacturing the thermoplastic resin matrix braided composite materials in a laminated manner; and secondly, placing the thermoplastic resin matrix braided composite materials into a preheated mould for hot-press forming. Viscosity of thermoplastic resin is reduced by a heating method, flowability of the thermoplastic resin is enhanced, a three-dimensional complicated curve part is formed under a certain pressure and at a certain temperature, and the thermoplastic resin is ensured to sufficiently infiltrate into gaps of the braided materials. The thermoplastic resin matrix braided composite materials can be formed in a hot-press manner without prepregs, production efficiency can be greatly improved, production cycle is shortened, and the hot-press forming method can be popularized and applied.
Description
Technical field
The present invention relates to a kind of hot-press molding method, specifically a kind of thermoplastic resin-based woven composite hot-press molding method.
Background technology
At present, the application of composite is more and more extensive, the molding mode of composite has multiple, the forming method of composite mainly contain Wrapping formed, hand pasting forming, RTM are shaping, pultrusion etc., these forming methods are mainly for thermosetting plastics--epoxy resin, and production efficiency is low, molding cycle is long.Epoxy resin base fiber reinforced composite material is mainly used in the field such as Aero-Space, national defence.The application of thermoplastic resin base fiber reinforced composite material is also less, it is main because the molecular weight of thermoplastic resin is large, viscosity is large, solid-state under normal temperature, poor fluidity, wellability is poor and be not widely used, and thermoplastic resin material has a lot of excellent properties in fact, be mainly used in injection moulding, be widely used in auto parts and components.The requirement of existing forming technique to operating technology is high, and quality stability is poor, and the production cycle is long, and efficiency is low, and labour intensity is large, and production large scale goods difficulty, product surface quality can only accomplish machine glazing.
Summary of the invention
The present invention is directed to above shortcomings in prior art, provide a kind of thermoplastic resin-based woven composite hot-press molding method.
The present invention is achieved by the following technical solutions.
According to an aspect of the present invention, a kind of thermoplastic resin-based woven composite hot-press molding method is provided, comprises the steps:
Step 1: make thermoplastic resin-based woven composite with overlapped way;
Step 2: when not having prepreg, by hot-forming for the mould that thermoplastic resin-based woven composite puts into preheating.
Preferably, the raw material that described thermoplastic resin-based woven composite adopts are thermoplastic resin particle and fibre knitting cloth, comprise the woven cloth of the resin particle of different kinds and different weaving manner, different kinds of fibers.
Preferably, described step 1, is specially: by thermoplastic resin particle and fibre knitting cloth alternative stacked, and the number of plies of lamination and the consumption of thermoplastic resin particle can be determined as required.
Preferably, described step 2 comprises the steps:
Step 2.1: thermoplastic resin-based woven composite is heated by heating furnace;
Step 2.2: be heated to held for some time after design temperature, then takes out thermoplastic resin-based woven composite fast, puts in the mould of preheating shaping;
Step 2.3: namely take out forming part after waiting thermoplastic resin to solidify.
Preferably, in described step 2.1, in the process thermoplastic resin-based woven composite heated by heating furnace, apply certain pressure on stacking material surface.
Preferably, in described step 2.2, described design temperature lower than the decomposition temperature of thermoplastic resin material, and higher than the melt temperature of thermoplastic resin material.
Preferably, in described step 2.3, in forming process, apply certain pressure fully infiltrate in braided material by thermoplastic resin.
The invention has the beneficial effects as follows, the present invention utilizes the method for heating to reduce the viscosity of thermoplastic resin, increases its mobility, at certain pressure and temperature compacted under 3 D complex curved surface part, ensures that thermoplastic resin is fully infiltrated in the gap of braided material.The present invention can complete the hot-forming of thermoplastic resin-based woven composite when not having prepreg, can greatly enhance productivity, and shortens the production cycle, can apply.
Accompanying drawing explanation
Fig. 1 is the structural representation according to the composite made in thermoplastic resin-based woven composite hot-press molding method provided by the invention;
Fig. 2 is the procedure chart according to thermoplastic resin-based woven composite hot-press molding method provided by the invention;
In figure: 1 is braided material, 2 is thermoplastic resin particle, and 3 is braided material.
Detailed description of the invention
Below embodiments of the invention are elaborated: the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
In a specific embodiment according to the present invention, as shown in Figure 1 and Figure 2, according to thermoplastic resin-based woven composite hot-press molding method provided by the invention, the raw material of this hot-press molding method are thermoplastic resin particle, braided material.This composite is alternately laminated by braided material, thermoplastic resin particle, braided material, can laminated multi-layer as required, and form different material thicknesses, the part of shaping different-thickness, the size that braided material needs according to forming part carrys out cutting.Stacked good composite will through heating furnace heating to reach certain temperature, this temperature value will be determined according to the injecting forming temperature scope of thermoplastic resin material, the decomposition temperature of thermoplastic resin material can not be exceeded, lower than the melt temperature of thermoplastic resin material, can not to apply certain pressure on stacking material surface in the process of heating.Be heated to held for some time after design temperature, then take out composite fast, the mould putting into preheating is shaping, will ensure certain temperature and pressure in shaping process, allows thermoplastic resin fully infiltrate in braided material.Forming part can be taken out Deng after thermoplastic resin solidification.
More specifically, in the present embodiment, stacked good composite will through heating furnace preheating to reach certain temperature, this temperature value will be determined according to the injecting forming temperature scope of thermoplastic resin material, the decomposition temperature of thermoplastic resin material can not be exceeded, can not lower than the melt temperature of thermoplastic resin material.Then take out composite fast, put into hot forming tool shaping, in shaping process, certain temperature and pressure will be ensured, allow thermoplastic resin fully infiltrate in braided material.Forming part can be taken out Deng after thermoplastic resin solidification.
Claims (1)
1. a thermoplastic resin-based woven composite hot-press molding method, is characterized in that, comprise the steps:
Step 1: make thermoplastic resin-based woven composite with overlapped way;
Step 2: when not having prepreg, by hot-forming for the mould that thermoplastic resin-based woven composite puts into preheating;
The raw material that described thermoplastic resin-based woven composite adopts are thermoplastic resin particle and fibre knitting cloth;
Described step 1, is specially: by thermoplastic resin particle and fibre knitting cloth alternative stacked;
Described step 2 comprises the steps:
Step 2.1: thermoplastic resin-based woven composite is heated by heating furnace;
Step 2.2: be heated to held for some time after design temperature, then takes out thermoplastic resin-based woven composite fast, puts in the mould of preheating shaping;
Step 2.3: namely take out forming part after waiting thermoplastic resin to solidify;
In described step 2.1, in the process thermoplastic resin-based woven composite heated by heating furnace, apply certain pressure on stacking material surface;
In described step 2.2, described design temperature lower than the decomposition temperature of thermoplastic resin material, and higher than the melt temperature of thermoplastic resin material;
In described step 2.3, in forming process, apply certain pressure fully infiltrate in braided material by thermoplastic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216580.9A CN102765197B (en) | 2012-06-27 | 2012-06-27 | Hot-press forming method for thermoplastic resin matrix braided composite materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216580.9A CN102765197B (en) | 2012-06-27 | 2012-06-27 | Hot-press forming method for thermoplastic resin matrix braided composite materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102765197A CN102765197A (en) | 2012-11-07 |
| CN102765197B true CN102765197B (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210216580.9A Expired - Fee Related CN102765197B (en) | 2012-06-27 | 2012-06-27 | Hot-press forming method for thermoplastic resin matrix braided composite materials |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5915780B2 (en) * | 2013-12-06 | 2016-05-11 | 三菱レイヨン株式会社 | Laminated substrate using fiber reinforced thermoplastics |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101073918A (en) * | 2006-05-19 | 2007-11-21 | 阿兹代尔公司 | Method for increasing sponginess property of sheet with thermoplastic reinforced by multiporous fiber |
| CN101254654A (en) * | 2008-04-16 | 2008-09-03 | 中兴通讯股份有限公司 | Carbon fibre material processing technique, mobile terminal case production method and mobile terminal thereof |
| CN101583479A (en) * | 2007-01-29 | 2009-11-18 | 波音公司 | Thermoplastic composite parts having integrated metal fittings and method of making the same |
| CN101987511A (en) * | 2010-08-09 | 2011-03-23 | 无锡吉兴汽车声学部件科技有限公司 | Method for producing automotive sound-insulating pad |
-
2012
- 2012-06-27 CN CN201210216580.9A patent/CN102765197B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101073918A (en) * | 2006-05-19 | 2007-11-21 | 阿兹代尔公司 | Method for increasing sponginess property of sheet with thermoplastic reinforced by multiporous fiber |
| CN101583479A (en) * | 2007-01-29 | 2009-11-18 | 波音公司 | Thermoplastic composite parts having integrated metal fittings and method of making the same |
| CN101254654A (en) * | 2008-04-16 | 2008-09-03 | 中兴通讯股份有限公司 | Carbon fibre material processing technique, mobile terminal case production method and mobile terminal thereof |
| CN101987511A (en) * | 2010-08-09 | 2011-03-23 | 无锡吉兴汽车声学部件科技有限公司 | Method for producing automotive sound-insulating pad |
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| CN102765197A (en) | 2012-11-07 |
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