Carbon fiber tube material how to improve?
Release time:
2024-01-23
Carbon fiber is widely used because of its superior strength to steel and excellent weight reduction effect. Carbon fiber tube is the main application form. Usually, carbon fiber tube will have some defects in a certain part, so how to improve the quality of pipe is particularly important. Based on the experience summed up in the production process of Kaida carbon fiber for many years, this paper mainly introduces how to improve the quality of carbon fiber pipe.
Since the quality of carbon fiber pipes is to be improved, the reasons for the defects of carbon fiber pipes must first be understood. Generally, the surface defects of carbon fiber pipes mainly include wrinkles, stripes and other problems. However, tracing back the reasons mainly focuses on the link of prepreg layup. If sufficient tension is not applied to compress the prepreg layup quickly during layup, each layer of prepreg will be relatively loose and the overall thickness will increase. But if the pressure will bring contraction force, so that the carbon fiber bending, folding. Also, some auxiliary materials may be needed in the prepreg layup, which may also cause wrinkles when compressed.
Having said the reason, the following is to introduce the solution to everyone. The first important step is to combine preloading with temperature in the laying process of carbon fiber prepreg. Generally, preloading is carried out at a certain temperature after laying several layers, so that timely preloading can prevent the accumulation of fiber relaxation layers. The resin content and pipe thickness in carbon fiber composites can be effectively controlled. Secondly, it is also very important to choose the appropriate mold. The choice of the mold has a great influence on the outer diameter size. For the production material of the core mold, it is also necessary to have a good rigid metal material to improve the density and rigidity of the carbon fiber pipe. In addition, the surface quality and accuracy of the carbon fiber pipe can be improved by using the heat shrinkage process.
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