A kind of processing method of carbon fiber tow

Abstract

The purpose of the present invention is to provide a carbon fiber tow processing method. It is characterized in that: a carbon fiber tow processing method, characterized in that it includes the following steps: step 1: expand the carbon fiber raw material tow to obtain a carbon fiber tape with a required width; step 2: use a coating machine to coat the resin onto the release paper, and seal the release paper for use; step 3: process the carbon fiber material to be glued; step 4: use the resin-coated release paper to coat the resin on the carbon fiber; step 5: put the pre-coated After impregnation, the carbon fiber package with resin is rolled up and ready for use. The beneficial effect of the present invention is that: the carbon fiber can be processed quickly as a whole, the large tow carbon fiber tow is unfolded, and then weaved and glued and encapsulated, the damage to the carbon fiber tow is small, and the processing efficiency is high.

Description

technical field [0001] The invention relates to the field of industrial processing equipment, in particular to a method for processing carbon fiber tow. Background technique [0002] With the development and maturity of high-tech manufacturing industries such as aerospace, wind power, and new automobiles, related material application technologies such as carbon fiber material technology have also made great progress and are widely used. In practical application, because the price of large tow carbon fiber, such as 48K, 60K or even 360K, 480K, is much cheaper than that of small tow, the price of large tow is only 50%-60% of that of small tow, so it is more It is easy to be accepted by producers, but because the large-tow carbon fiber has the phenomenon of twists and kinks of the fiber as the number of fiber bundles increases, and the resin matrix is ​​not easy to infiltrate into the inside of the large-tow fiber bundle, it is easy to occur between single filaments. Porosity,...

AI Technical Summary

Problems solved by technology

In practical application, because the price of large tow carbon fiber, such as 48K, 60K or even 360K, 480K, is much cheaper than that of small tow, the price of large tow is only 50%-60% of that of small tow, so it is more It is easy to be accepted by producers, but because the large-tow carbon fiber has the phenomenon of twists and kinks of the fiber as the number of fiber bundles increases, and the resin matrix is ​​not easy to infiltrate into the inside of the large-tow fiber bundle, it is easy to occur between single filaments. Porosity, and it is easy to cause defects such as enrichment and separation of fiber phase and resin phase. At the same time, as the diameter of the tow increases, the possibility of fiber buckling and ply angle misalignment during the composite material molding process also increases, so that the composite The strength and stiffness of the material are affected, the mechanical properties are reduced, and the dispersion is large, which cannot meet the requirements of structural design and cannot give full play to the high-performance advantages of carbon fiber reinforced materials. Therefore, the key technology to break through the low-cost large-tow carbon fiber to exert high-performance advantages is to develop large tow Carbon Fiber Unfolding Technology