A method for preparing cladding coatings on the surface of carbon fiber reinforced thermoplastic composites using laser-assisted shs process

A technology to strengthen thermoplastic and composite materials, applied in the direction of coating, can solve the problems of low joint strength, complex process, resin deformation cost and other problems, and achieve the effect of reducing equipment cost, saving material cost and good wettability

Active Publication Date: 2018-07-03
HARBIN INST OF TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of complex process, low joint strength, easy deformation of resin and high cost in the existing method for preparing metal coating on the surface of carbon fiber reinforced thermoplastic composite materials, and to provide a laser-assisted SHS process on carbon fiber Method for preparing cladding coating on reinforced thermoplastic composite material surface

Method used

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  • A method for preparing cladding coatings on the surface of carbon fiber reinforced thermoplastic composites using laser-assisted shs process
  • A method for preparing cladding coatings on the surface of carbon fiber reinforced thermoplastic composites using laser-assisted shs process
  • A method for preparing cladding coatings on the surface of carbon fiber reinforced thermoplastic composites using laser-assisted shs process

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specific Embodiment approach 1

[0026] Specific Embodiment 1: This embodiment is a method for preparing a cladding coating on the surface of a carbon fiber reinforced thermoplastic composite material using a laser-assisted SHS process, which is completed in the following steps:

[0027] 1. Pretreatment of carbon fiber reinforced thermoplastic composites: use sandpaper to polish the surface of carbon fiber reinforced thermoplastic composites to obtain smooth carbon fiber reinforced thermoplastic composites; use absolute ethanol to clean the smooth carbon fiber reinforced thermoplastic composites for 3 times ~5 times, and then dry naturally at room temperature to obtain the treated carbon fiber reinforced thermoplastic composite material;

[0028] 2. Put the treated carbon fiber reinforced thermoplastic composite material on the running mechanism, then spread the cladding powder on the surface of the treated carbon fiber reinforced thermoplastic composite material, and compact the cladding powder, and then put ...

specific Embodiment approach 2

[0040] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the particle size of the TC4 powder is 45um-75um. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0041] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is: the Ti-Al mixed powder is a mixture of Ti powder and Al powder; the Ti powder in the Ti-Al mixed powder The mass fraction is 64%~86%. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a method for preparing a cladding coating on the surface of a carbon fiber reinforced thermoplastic composite material by using a laser-assisted SHS process, which relates to a method for preparing a cladding coating. The purpose of the present invention is to solve the existing problems of complex process, low joint strength, easy deformation of resin and high cost in the existing method for preparing metal coating on the surface of carbon fiber reinforced thermoplastic composite material. Method: pre-treat the carbon fiber reinforced thermoplastic composite material; 2. spread the cladding powder on the surface of the treated carbon fiber reinforced thermoplastic composite material, then compact the cladding powder, and then irradiate in a vacuum chamber to obtain The carbon fiber reinforced thermoplastic composite material with a cladding coating formed on the surface is to complete a method of preparing a cladding coating on the surface of a carbon fiber reinforced thermoplastic composite material using a laser-assisted SHS process. The invention can obtain a method for preparing a cladding coating on the surface of a carbon fiber reinforced thermoplastic composite material by using a laser-assisted SHS process.

Description

technical field [0001] The invention relates to a method for preparing a cladding coating. Background technique [0002] Carbon fiber reinforced thermoplastic composites (Fiber Reinforced Thermo Plastics, CRTP for short) have high specific strength and specific stiffness, strong designability, good fatigue fracture resistance, corrosion resistance, good structural dimensional stability, and are convenient for large-area integral forming and special Unique advantages such as electromagnetic properties play an increasingly important role in high-tech manufacturing fields such as aerospace and automobiles. [0003] Among CRTP materials, although carbon fibers are resistant to high temperatures, the melting point of the matrix resin is low, and it begins to soften at 200-300°C. The commonly used thermoplastic resins are polyethylene terephthalate, polyphenylene sulfide, polyether ketone and polyether. ether ketone etc. The melting point of polyethylene terephthalate is 270°C, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/06
Inventor 陶汪陈彦宾苏轩邹帅
Owner HARBIN INST OF TECH
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