Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pretreatment method of bonded surface of carbon fiber composite materials

A composite material and carbon fiber technology, used in welding equipment, laser welding equipment, metal processing equipment, etc., can solve the problems of uneven surface quality of grinding, difficult to quantify process, and easy damage to surface fibers, and achieve consistent quality stability. Good, high-precision results

Active Publication Date: 2019-09-17
SHANGHAI INST OF SATELLITE EQUIP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Grinding with sandpaper, the working environment is harsh, the quality of the polished surface is uneven, the surface fibers are easily damaged, and the process is difficult to quantify
The surface of the carbon fiber composite material after sanding will embed some particles of the resin matrix, and it is difficult to completely remove them by general cleaning procedures

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
  • Pretreatment method of bonded surface of carbon fiber composite materials
  • Pretreatment method of bonded surface of carbon fiber composite materials
  • Pretreatment method of bonded surface of carbon fiber composite materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The following will combine Figure 1 ~ Figure 3 The method for pretreatment of the bonded surface of the carbon fiber composite material of the present invention will be further described in detail.

[0019] The carbon fiber composite material bonding surface pretreatment method of the present invention uses an excimer laser to pretreat the carbon fiber composite material bonding surface. Such as figure 1 As shown, the excimer laser 2 generated by the excimer laser 1 is vertically incident on the surface 3 of the carbon fiber composite material (that is, the bonding surface of the carbon fiber composite material), and the excimer laser 2 directly excites the surface material molecules to an electronic state until the material molecules are broken The chemical bond causes the surface to produce erosion phenomenon to form a microscopic rough surface. At the same time, through the potential light effect in the pretreatment process, the activity of the 3 resin groups on th...

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
wavelengthaaaaaaaaaa
poweraaaaaaaaaa
Login to View More

Abstract

The invention discloses a carbon fiber composite bonding surface preprocessing method. The carbon fiber composite bonding surface preprocessing method comprises the following steps that preprocessing is conducted on the carbon fiber composite bonding surface by adopting excimer laser; material molecules of the bonding surface are directly stimulated to an electron state through the excimer laser until chemical bonds of the material molecules are interrupted, so that the bonding surface produces etching phenomenon, and the microscopic rough surface is formed; and meanwhile, through latent light effect in the preprocessing process, the resin group activity of the carbon fiber composite bonding surface and properties of the carbon fiber surface are changed, thus preprocessing on the carbon fiber composite bonding surface is realized. The carbon fiber composite bonding surface preprocessing method improves the preprocessing quality and work efficiency of the surface of the fiber composite bonding surface.

Description

technical field [0001] The invention relates to the technical field of surface treatment, in particular to a pretreatment method for a carbon fiber composite material bonding surface. Background technique [0002] In order to ensure the strength and durability of carbon fiber composite bonding, the surface pretreatment of the bonding joint must be carried out to increase the bonding force between the adhesive and the material surface. In the prior art, the surface pretreatment of the bonded surface of carbon fiber composite materials mainly adopts a process of manually grinding the surface with sandpaper and then cleaning it with an organic solvent. Sandpaper is used for grinding, the working environment is harsh, the quality of the polished surface is uneven, the surface fibers are easily damaged, and the process is difficult to quantify. The surface of the carbon fiber composite material after sanding will embed some particles of the resin matrix, and it is difficult to c...

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 Patents(China)
IPC IPC(8): B23K26/352
Inventor 刘良威王芳汪超刘锦宋华辉黄亚忠
Owner SHANGHAI INST OF SATELLITE EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com