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Carbon fiber reinforced plastic-thermoplastic laser thermal fusion welding technology

A technology of thermoplastics and reinforced plastics, applied in the field of polymer composite material processing, to achieve the effect of simple method, improved stability of use, and uniform mesh distribution

Inactive Publication Date: 2017-12-22
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing joining technology processes have drawbacks, e.g. long processing times requiring cleaning, the use of adhesives and additional bonding media, etc., or the additional weight of the joining elements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Select carbon fiber reinforced plastics with a size of 30*30*30cm and thermoplastics with a size of 20*30*30cm, and polish and clean the surfaces to be welded between carbon fiber reinforced plastics and thermoplastics to obtain a clean and smooth surface to be welded . Next, pretreatment is carried out on the surface of the carbon fiber reinforced plastic to be welded by using a laser drilling process. The lasers used in the laser drilling process in this application can be semiconductor laser devices such as gallium arsenide lasers, cadmium sulfide lasers, indium phosphide lasers, and zinc sulfide lasers, or helium-neon lasers, argon ion lasers, carbon dioxide lasers, helium - Cadmium lasers and copper vapor lasers, the laser drilling process in this embodiment preferably uses gallium arsenide lasers, and the adjusted laser power is 100W / cm 2 , make a mesh structure on the surface to be welded of carbon fiber reinforced plastics, the mesh structure is uniformly d...

Embodiment 2

[0031] (1) Select carbon fiber reinforced plastics with a size of 10*10*10cm and thermoplastics with a size of 20*30*30cm, and polish and clean the surfaces to be welded between carbon fiber reinforced plastics and thermoplastics to obtain a clean and smooth surface to be welded . Next, pretreatment is carried out on the surface of the carbon fiber reinforced plastic to be welded by using a laser drilling process. The lasers used in the laser drilling process in this application can be semiconductor laser devices such as gallium arsenide lasers, cadmium sulfide lasers, indium phosphide lasers, and zinc sulfide lasers, or helium-neon lasers, argon ion lasers, carbon dioxide lasers, helium - cadmium laser and copper vapor laser, the laser drilling process in the present embodiment preferably uses a helium-neon laser, and the adjusted laser power is 3000W / cm 2 , make a mesh structure on the surface to be welded of carbon fiber reinforced plastics, the mesh structure is made of u...

Embodiment 3

[0037] (1) Select carbon fiber reinforced plastics with a size of 1*30*30cm and thermoplastics with a size of 10*10*10cm, and polish and clean the surfaces to be welded between carbon fiber reinforced plastics and thermoplastics to obtain a clean and smooth surface to be welded . Next, pretreatment is carried out on the surface of the carbon fiber reinforced plastic to be welded by using a laser drilling process. The lasers used in the laser drilling process in this application can be semiconductor laser devices such as gallium arsenide lasers, cadmium sulfide lasers, indium phosphide lasers, and zinc sulfide lasers, or helium-neon lasers, argon ion lasers, carbon dioxide lasers, helium - Cadmium laser and copper vapor laser, the laser drilling process in this embodiment selects carbon dioxide laser, and the adjusted laser power is 500W / cm 2 , on the carbon fiber reinforced plastic surface to be welded to make a mesh structure, the mesh structure is composed of triangular mes...

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PUM

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Abstract

The invention provides a carbon fiber reinforced plastic-thermoplastic laser thermal fusion welding technology. Laser surface pretreatment is conducted on carbon fiber reinforced plastic firstly, and a uniform net-shaped structure is obtained; then the laser welding work procedure is conducted, the carbon fiber reinforced plastic and thermoplastic are overlaid and positioned through pressure; and positioning laser welding is conducted on the thermoplastic and pretreated thermoplastic. According to the carbon fiber reinforced plastic-thermoplastic laser thermal fusion welding technology, the technical defect that an existing carbon fiber reinforced plastic-thermoplastic connecting technology is poor in manufacturability is overcome, the technical effects that after the carbon fiber reinforced plastic is pretreated, an extra adhesive does not need to be used, and subsequent clearing is not needed are achieved, the mechanical performance of obtained weld joints is excellent, the welding efficiency is high, and manufacturing cost is reduced.

Description

technical field [0001] The invention relates to the field of polymer composite material processing, in particular to a carbon fiber reinforced plastic-thermoplastic laser heat fusion welding technology. Background technique [0002] With the development of science and technology and the progress of the times, laser has gradually entered people's life from an unreachable high-tech product. The application of laser is very extensive, such as in science and technology, medicine, industry, communication and other fields. We are familiar with: optical fiber communication, laser spectrum, laser cutting, laser welding, laser cutting bed, laser marking, laser embroidery, laser ranging, laser radar, laser weapons, laser discs, laser beauty, laser anchor scanning and so on. Polymer materials have the advantages of low density, high strength and good corrosion resistance, and are widely used in industry. Plastic products with complex structures cannot be formed by one-time extrusion,...

Claims

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Application Information

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IPC IPC(8): B29C65/16
CPCB29C65/16B29C66/028B29C66/721B29C66/9241B29C66/944B29C66/95
Inventor 陈庆曾军堂司文彬
Owner CHENDU NEW KELI CHEM SCI CO LTD
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