Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method for forming carbon fiber reinforced thermoplastic composite part

A technology for strengthening thermoplastic and composite materials, applied in the field of composite material forming, can solve the problem of spending a lot of time and energy, and achieve the effect of improving production efficiency, significant energy saving, and reducing heating and heat preservation time.

Active Publication Date: 2019-11-05
帝国理工创新有限公司
View PDF16 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for forming carbon fiber reinforced thermoplastic composite parts to solve the problem that a large amount of time and energy are required for stamping and forming in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for forming carbon fiber reinforced thermoplastic composite part
  • Method for forming carbon fiber reinforced thermoplastic composite part
  • Method for forming carbon fiber reinforced thermoplastic composite part

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0012] Specific implementation mode one: the following combination figure 1 Describe this embodiment, the forming method of parts is realized through the following steps:

[0013] 1. Rapidly heating the carbon fiber reinforced thermoplastic composite sheet to a preset temperature, which is the critical forming temperature T, which is slightly lower than the resin melting temperature of the thermoplastic composite sheet. The heating rate is in the range of 20-60°C / s. The choice of heating rate and forming temperature depends on the complexity of the formed part.

[0014] The critical forming temperature T can be determined by the following method: compare the properties of the material after heating the plate to different temperatures, so as to determine the melting temperature of the material and ensure that the material is sufficiently softened before forming. For the melting temperature of materials such as plastics and rubber, laboratories usually use differential scannin...

specific Embodiment approach 2

[0021] Specific implementation mode two: the following combination figure 1 , figure 2 and image 3 This embodiment will be specifically described. The difference between this embodiment and the first embodiment is that the carbon fiber reinforced thermoplastic composite material in this embodiment is a carbon fiber reinforced polyetheretherketone (CF / PEEK) composite material. The part is a "U" shaped component, which is a part used in automobiles. Composite sheet thickness 2.5mm.

[0022] Step 1 uses a high-power contact heating device, which can achieve a rapid heating rate of up to 60°C / s, and the critical forming temperature T can be reached within 3 seconds to 5 seconds. The heat preservation time of step 2 is between 0.5 second and 2 seconds. The quenching time in step 4 is 6 seconds to 8 seconds, reaching a cooling rate of 40° C. / s.

[0023] After taking the above measures, the entire production cycle is shortened to less than 15 seconds. After testing, the stre...

specific Embodiment approach 3

[0025] Specific embodiment three: This embodiment limits step two with respect to embodiment two, and the mold holding pressure is within the critical contact pressure range, and the mold holding pressure is 1MPa to 20MPa; The quenching of step four is that the formed part is in the cold mold cool down.

[0026] Other steps are the same as in the second embodiment.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for forming a carbon fiber reinforced thermoplastic composite part. The method for forming the carbon fiber reinforced thermoplastic composite part solves the problemthat punch forming needs to use a large amount of time and a large quantity of energy sources in the prior art. The method for forming the carbon fiber reinforced thermoplastic composite part is realized through following steps: quickly heating a carbon fiber reinforced thermoplastic composite sheet material to critical forming temperature, and setting heating speed within a range from 20 DEG C / Sto 60 DEG C / ; keeping the temperature of the sheet material under certain pressure; quickly transferring the hot sheet material into a cold die, and keeping the sheet material under a softening stateall the time; punching the sheet material into a needed shape by using pressure of the cold die; and quenching the formed part to room temperature at critical quenching rate. The method for forming the carbon fiber reinforced thermoplastic composite part is a novel quick hot forming method, can be used for producing the reinforced thermoplastic composite part complex in shape, meets requirementsfor large batch part production in automobile industry, and can shorten the production cycle to be within 15 seconds. The intensity of the formed part can reach up to 90% of that of the original sheetmaterial.

Description

technical field [0001] The invention relates to a forming method of a carbon fiber reinforced thermoplastic composite material, which belongs to the field of composite material forming. Background technique [0002] Carbon fiber reinforced thermoplastic composites have the potential to be mass-produced lightweight structural components for applications in the aerospace, aircraft and automotive industries. At present, High Pressure Resin Transfer Moulding (High Pressure Resin Transfer Moulding) has been applied to manufacture reinforced thermoplastic composite auto parts. However, due to the long duration of the injection and curing process in this technology, it will be very difficult to adopt this technology for mass production. In this technology, stamping and forming reinforced thermoplastic composite sheets using convection or infrared furnaces takes a lot of time and energy. If the production cycle of thermoplastic composite parts can be shortened to less than 1 minut...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/46
CPCB29C70/46
Inventor 王礼良孙雨豪蔡昭恒栾禧丹尼斯J.波利蒂斯奥马尔·伊法基尔朱明清吴冈林建国
Owner 帝国理工创新有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com